Yeah, seriously I've been applying what you have found and shown on Ford stuff in conjunction with the stuff I've learned on Engine Masters and it is helping a ton when looking at engine math books and such to come up with my combination....this will be a mostly home build and I want everything to be as good as it is going to be and WORK. And I believe it will with what you teach and some of your colleagues teachm
@@TommyboyGTP that 7k redline helps. And as does the part about Yamaha making some badass heads.. 220~hp and 215tq (according to a forum or 2) and that power comes on fast. Imagine if they'd have offered that little v6 in a rwd.. (it's doable buuutt..)
@@PureCountryof91 I'm pretty sure that was a very conservative power rating, and yea it pulled like a beast, and would go to 7,500 or a bit more before the cutoff. Used to rev the piss out of mine, it loved it lol
Thanks for great content. You have spent So much time to help others see what combinations work well. I think all of your followers would agree you are a phenomenal teacher.
@@richardholdener1727 if you could swap in a mild 302 in anything, what would you pick and why? Not for racing but just to have for fun on the street. Like a pinto, ranger, maverick, ect?
Thanks for showing us the 5.0 intake differences. I have a 306 with milled afr 165 heads at 54cc. Stock cam with svo rockers with close to 10:1 compression. I used the cobra intake. I was able to produce 355rwtq at 4000rpm. Great video, keep up the outstanding work :)
I second that! Us EFI 5.8 guys don't really have a junkyard option for the lower intake, unless you're lucky enough to find a first gen Lightning in the Junkyard, which would be like hitting the jackpot. Most have to spend over $900 for the Edelbrock stuff.
So for those asking about extrude honing, i do not remember what year it became popular in hotrodding but early 90's seems to be close to my memory. It's uses a grinding media in a putty like form pressed thru passages to open up and clean them of blockages and in the automotive world to port efi intakes because some of them are impossible to port any other way. It can be used to great effectiveness to add power around a peak not change the actual peak power rpm. it's like porting but with silly putty and a big assed hydraulic ram.
I sold one I had on eBay for $875 two years ago. People definitely love them still. Not sure if it’s more for nostalgia or just the cool tubular looks.
@@CentralVAracer I’m new to the fox body. Just got one with shorty bbk, e303 cam and bbk cold air with flow masters. She runs out of breath at 5k rpm but feels great down low. What’s the best bang for the buck manifold?
This is a great video on showing how important matching the engine parts combo is. I have so many friends that are disappointed when they do a string of bolt ons that are not matched or leave off some parts to save money and their cars are not much better than stock.
@@richardholdener1727 so you know a what a cut, runners shortened to peak at 6,500rpm, 2.4 mcsa, 320cfm bolted together average runner flow with a 80mm 1,100cfm throttle body tunnel flow gt40 would have made 30plus hp more than any of the tested aftermarket manifolds. To many that would be a better test because it's doing something different than buying what everyone else has bought and getting the same limitations everyone has. We have plenty of back to back testing and we have found it hard to beat a properly ported/modified gt40 manifold. This is a good test though. Keep up the great work!👍
Anyone see what the Foxbody Mustangs & the 1993 Cobra Mustangs were going for at Mecum Indianapolis 2022?? They are getting the appreciation they deserve, I'll just say that!
You might not notice 24ft lbs missing, it's lots but it's like 7%. You will definitely notice 40hp especially when you can run it 1000rpm higher. You would only see that rpm once on the strip, and even then maybe never.
I think you could achieve the same sort of power with far less money spent by using a single four barrel carby and Victor Jr or the motorsport intake on a 351 or 347ci stroker, and stock GT-40 heads with a bowl blend.
I wanna see more 4cy and even 6cyl motors. CMON RICH , your roots are in 4 bangers man. Let's see some honda big bangs and how about a supercharged mini 1.6l big bang
The car is ' 92 LX with a T-5. The long block combo at the time was 306 similar to the video. The cam was an E303 with 1.7s and AFR 165 58cc heads with shorty headers, off road H pipe, & electric fan. With the unported GT-40 it made 274. With the Systemax it made 334rwhp. I did port the GT 40 lower and ran that for awhile but it was a mess. It was THIN in the runners and sucked alot of oil. It made 316rwhp with that setup.
Do ford 300 4.9 build up I built one found rare industrial ford 300 had 4.120 bore I placed common crank 4.00 stroke came to like 320 ish. I was young found out later it also had forge crank. And I made custom intake and exhaust dual I think 70mm throttle body one on for runner each and twin turbo , h beam rod full roller timing systems, and fully hand ported stage4 like port and polished and port matching and over sized valves
I would like the carbureted efi intake tests with like the spyder intake, pro m intake, Victor junior , trickflow. All of the carbureted style efi ones.
Awesome to see some of your 5.0l ford testing, what about a comparison between an RPM air gap carby manifold and an EFI manifold like the RPM 2 for those thinking of converting from one to the other, keep up the great content Richard, by far my favourite you tuber
I realise that you have most likely ran this test in the past as well as tons more I’m just waiting anxiously for you to share the results keep up the good work
depends on the intake. The long runners of the EFI would get whipped by a single plane, above 4,500 RPM. But a carb cools the intake charge with the venturi effect of its "barrels", while the typical EFI intake has so much surface area, it soaks up a ton of heat. And with the shock towers in the engine compartment blocking airflow from rad to firewall, there's a lot of engine heat to soak up.
Searched around in hopes to find one but how 'bout a 351 EFI intake test? The Factory truck, Edelbrock Truck, TFS 351, Professional Products 351, and GT40 351.
For the bank that was involved in one of these I think I'd just turbo it until it split down the middle then do a 351W in its place. Ford really did do the intake right though in terms of being able to modify it, GM had the TPI which looked cool but wasn't that great overall.
Anyone put the Sniper EFI from Holley on the 5.0 HO??? I Love how all V8 Engines look with those types of EFIs on them. I think you would need the cowl hood to install in a foxbody tho. I would get the hood just for that!
Love this channel. Would love to see a test on a 351 before and after port and polishing to see if it's worth the effort. Maybe a comparison at same compression between stock, stock with p/polish, then after market heads on same engine to see the cost/benefit of each. Thanks Richard
I love unsponsored real world testing. This is literal proof that I don't need new heads or intake to increase low end torque in my 5.0 equipped bronco. I'm going to spend that money on lower gearing!
One of the big 5.0 Mustang magazines in the day, did a dyno test of intake manifolds. Found the low riser OEM intake used in T'birds and 94 GT Mustangs wasn't as restrictive as thought. That an Extrude Honed stock HO intake could match a GT40--when they were new and expensive, it was a consideration, tho Ron Anderson Performance could port one out and really make some dyno numbers. I would imagine an Extrude Honed Cobra or Explorer could do better, since you aren't going to hone a GT40 tubular. Holley's Systamax reminds me of the $1,000 Saleen intake.
It would’ve been cool to see what the factory ho intake and gt40 would’ve done when they had the extrude hone treatment. I’d bet the hp numbers would’ve been very similar without the tq loss on this mild combo. I love all this info. Also second a junkyard gt 40 head and intake combo with a Motorsport alphabet cam. Thanks for the vids.
Richard, have you ever dyno'd a 5.0 with the old "pistons-in-backwards" trick to actually see if that adds the magical 15hp that people used to talk about?
When my mom passed I got her 95 GT convertible 5.0 5 speed, it's pretty soft I mean it scoots along nice but definitely isn't "fast" plus it's blessed with 2:73 gears! Woohoo. I do like the cruise rpm but the gears seem so tall you can turn it to around 55 in 2nd! Anyway I've been researching engine mods and I'm a little discouraged at the gains and all out HP of the 5.0, I'm used to the gains of chevy 350s where 350hp+ is effortless. With 302s 300/325hp isnt as easy and 400hp seems pretty stout for a 302. Am I wasting my money trying to make the 5.0 powerful...? Seems like the only way to have decent power without spending alot of money to get that little 302 is cam n turbo the 5.0 for around 400hp or building a 350 to 375hp 351... I would think even 350 NA HP or 400 HP mild turbo in a sn95 would be pretty respectable street car...maybe where a has a T5 a little deeper gear like a 3.40/3.50 so I can still have a comfortable cruise rpm.
So, let me get this straight, one mod produces small gains but if you stack a bunch of mods on top of each other it produces big gains?? You don't say.
Great video, a lot of people still run and modify 5.0 mustang motors. Would have loved to have seen what a newer Holley Hi-Ram “LS” style intake is like in the same sort of tests.
What intake for a 363 Stroker for the street? What is the hp limit on the gt40 or the Holley? I want one that has the leaned over runners like stock that flows enough for a big Stroker.
Well stated sir. It's like buying an air filter that promises up to 45 hp gain... lmao Love the videos. keep em coming. Kinda wondering about the results of changing nothing more than LSA on an already somewhat efficient combo. I'm used to the 106 to 104 LSA cams even thou idle quality isn't very good unless compression is real good. In a street car though a vacuum brake booster becomes worthless. (maybe a hydraboost system would fix that idea though?) Just a thought.. Thanks again sir..
Hey Mr holdener i wanted to say thank you for your time i have learned so much. I think iam decided on my 351 and parts combo TFS top end kit with the 11r's and there efi and a cx gt45 turbo . the only thing is i don't know much about tuning especially with a turbo . where's a good place to start?
Jeff Kopis if you would have read what I posted I was wanting to the see 2 bbl 289 vs the Hi Po vs the Shelby. Not just him putting these same parts on a 289. It would kinda be like another other guys cause to many people forget about the 289
I bought a full lunatic balanced 408 stoker kit for my 351w. I had to cheap out on the pro comp 215 heads. Sent to machine shop for springs and a good look over. Used a Ford single plane high rise. Z 303 cam tried to stay all Ford I was dumb at the time. Any way my buddy ran a 79 sunbird with a 383. We both ran a glide with 4:56 gears. Stock suspension. Tubular k member on my 89 fox lx. 2007. They were all Chevy hardcore never even built a Ford. When they saw I had to do no block grinding for my rods to clear they were amazed. Stud girdle on mains and rockers. Very similar parts on both. They thought for sure my Windsor stood no chance. That Ford made no power crap was all I heard. Double the money later on my Ford even I was questioning my route I chose. We were on small tires. Foot braking no trans brake till later. Straight cut planetary for the glide killed my trans break budget and his. Any way we went to twiggs in Macon and Savannah before it closed and ran 6.10 all day no tuning no test. Once the mustang started to come around the economy fell out. I had to sell my engine for 5,000 to a cop in Atlanta. He said straight bolt up in his 91 he ran 9.80 in the quarter. These were N/A cars. Needless to say I noticed how much power and torque that 408 made which I'm not good on the cubes it was .40 over. It was a very impressive engine. Then I drove a built 347 and man the power band would kill that 383. Anyways just reminiscing the good ole day off 2005-07.
I remember back in the olden days [late 1990's ?] in the Summit or JEGS catalogs there was a "BOX" that would eliminate the runner's top section on OHV 5.0 and 5.8 EFI intakes. I twould basically transform your stock 5.0 intake to a GM 1993 LT1 intake length and size wise, T/B remained at stock location. Have you tested it before ? Have you seen in action ? Was it any good ? If you haven't, would you consider testing one ? I always wondered if that thing was a sham or if it actually worked.
Ever tested any fabricated "box" upper intakes? Curious how they stack up. Have a friend running a ported/extrude honed GT40 lower with an aluminum box upper on his 331 stroker. It seems to work well, but the new Holley hi ram for the SBFs have him looking at other options. I think it will give up too much under the curve unless he goes with a big solid roller and larger cylinder heads.
This engine is such a boat anchor. Over 3k for less than 100hp gains 😂 thats ridiculous. Todays Modern modular ford V6 engines make more than that on just actual bolt ons. Intake , throttle body, headers , exhaust and a tune. I wouldn't spend any money on this engine personally. Go with the coyote 💪🏻
This was great but ever part shown cost a little coin. Cams are priced, a good set of heads are not $1500, headers are priced ok, intake another 1k it seems. What are the performance gains for the average guy doing on of these if he doesn't have 3k -4k to spend to make 350 whp
It just runs a little funny if the ports are mismatched but as long as the intake seals and it gets fuel and spark at the right times it'll run just fine
these intakes have been around a long time, I need to see what a Holley HI RAM with a side mount ford throttle body can do, can it beat the gt40 under the curve? can you borrow a professionally ported lower for the gt40 so its potential can be seen.
Whats your opinion on holley Systemax heads? I'm aiming for around 300whp stock 94 bottom end, holley systemax heads, XE276HR Cam, GT40 intake and long tube headers with Mac prochamber exhaust. Think I'll be close ?
Richard, you achieved 261 HP on your stock 5.0 opposed to the factory-rated 225 HP. Is this due to the lack of the mass air system/intake, accessories, and the addition of headers?
What compression was this engine Richard? I wish I.could.send you my ported upper and lower explore intake.. youd be very impressed I think. We'll find out here soon what it does to the rear tire.. couple.other things was.ported.as.well.. bone stock 142k mile bottem end explorer engine.. i did.change the cam.
354 HP and 374 lb ft of torque would make for a fun Fox body with long tube headers, a full 3" dual exhaust with either Flowmaster or Borla mufflers. I'd love to have a Fox body with a mildly modified 302. I've ridden in a stroked 347 with all of the mods and it made around 600 hp and it was fun and fast, but my 612 whp Civic would've eaten it alive from a dig. In my humble opinion, while I am all about keeping it brand specific, it's hard to beat a Fox body with a well built LS with a good sized turbo on it...OR a GT500 swapped Fox, or a Voodoo swapped Fox, or a built Coyote swapped Fox. One thing I have always wanted to see was a 3.5L EcoBoost swapped Fox...idk why it's always been a dream of mine, but I have always wanted to see what the EcoBoost (hell, 3.5 OR 2.7) can do in a Fox...or even a SN95 (even though they're boats).
Richard, can you explain why you don't show dyno runs from idle? Since most people drive their cars on the street, I'm sure a lot of them would love to see how the bottom end is affected. Also, do you have any comparisons of heat wrapping manifolds/exhausts?
@@19jody72 Lol, you can't really port the upper since it incorporates thin-wall tubes. But, you can port the Explorer intake which flows similar to the GT-40.
@@richardholdener1727 so are you saying a ported upper and lower explorer intake will not make more power thN a stock one? EDIT: you are the professional Richard, but that is simply not true. I know for a fact it does make more power than a stock out of the box rpmll. I know it doesn't change runner length....but it does increase airflow which increases power as we all know.. as long as uts all matched of course
what happens when you add boost to the torque numbers at the bottom end that you lose naturally asperated with a freer flowing intake? Do you gain more or does the it still lag at the bottom compared to the more restrictive intake?
@@richardholdener1727 is it really more restrictive than the heads though? I thought the stock heads only flowed like 145cfm, surely the intake flows better than that
Thank you for doing 5.0L stuff for us Richard, many of us out here appreciate your efforts 👍
Yea fr ✊🏾
My pleasure
And the ford modified video was cool! It's an underbuilt machine and your proved it!!
Yeah, seriously I've been applying what you have found and shown on Ford stuff in conjunction with the stuff I've learned on Engine Masters and it is helping a ton when looking at engine math books and such to come up with my combination....this will be a mostly home build and I want everything to be as good as it is going to be and WORK. And I believe it will with what you teach and some of your colleagues teachm
Absolutely
GT40 intake, B303, Longtubes, Flowmaster 40s.
The meanest sounding 250hp ever.
Not to mention the best sounding 👍🏻
I used to eat those all the time back when i had my Taurus SHO, both the drag strip and highway pulls. They didn't stand a chance lol
Was that with e7 heads?
@@TommyboyGTP that 7k redline helps. And as does the part about Yamaha making some badass heads.. 220~hp and 215tq (according to a forum or 2) and that power comes on fast. Imagine if they'd have offered that little v6 in a rwd.. (it's doable buuutt..)
@@PureCountryof91 I'm pretty sure that was a very conservative power rating, and yea it pulled like a beast, and would go to 7,500 or a bit more before the cutoff. Used to rev the piss out of mine, it loved it lol
Thanks for great content. You have spent So much time to help others see what combinations work well. I think all of your followers would agree you are a phenomenal teacher.
I appreciate that!
@@richardholdener1727 if you could swap in a mild 302 in anything, what would you pick and why? Not for racing but just to have for fun on the street. Like a pinto, ranger, maverick, ect?
Love 5.0 pushrod stuff 👌
Awesome content keeping the old school 5.0 alive!! And it helps us guys who don’t have a dyno.. thanks Richard!
Thank you for doing actual informative videos. It gets really old watching people's attempts at movie making and crap reality show type stuff.
Absolutely blown away by the amount of content you crank out. Very interesting content!
Glad you enjoy it!
Thanks for showing us the 5.0 intake differences. I have a 306 with milled afr 165 heads at 54cc. Stock cam with svo rockers with close to 10:1 compression. I used the cobra intake. I was able to produce 355rwtq at 4000rpm. Great video, keep up the outstanding work :)
I have a 331 10:1 with a gt40 tubular, china heads, XE270 cam, aluminum china heads, shorty headers made 315whp/360 tq
Stock 5.0 cam in a 306?
I have a Holley Systemax II, with Trick Flow 11r 190 heads and an Anderson N-41 cam. Goes like gangbusters.
Thats a killer set of heads. Best overall on the market imho at least for a street car
I would of loved to see some of the old 5.0/5.8 truck intakes included in this test
I second that! Us EFI 5.8 guys don't really have a junkyard option for the lower intake, unless you're lucky enough to find a first gen Lightning in the Junkyard, which would be like hitting the jackpot. Most have to spend over $900 for the Edelbrock stuff.
Please test the Holley hi-Ram intake manifold on the 351w!! If possible put those r11 trick flow heads too
Thanks for all the time and effort you put into these codes videos
You bet
So for those asking about extrude honing, i do not remember what year it became popular in hotrodding but early 90's seems to be close to my memory. It's uses a grinding media in a putty like form pressed thru passages to open up and clean them of blockages and in the automotive world to port efi intakes because some of them are impossible to port any other way. It can be used to great effectiveness to add power around a peak not change the actual peak power rpm. it's like porting but with silly putty and a big assed hydraulic ram.
it is industrial grade silly putty impregnated with silicone carbide (or even industrial diamonds on some applications)
Gotta love those compounded HP gains. Don't forget the decal horsepower, either!
I just saw one of the tubular intakes sell for $1200 on a FB group. People are nutty over these intakes.
I sold one I had on eBay for $875 two years ago. People definitely love them still. Not sure if it’s more for nostalgia or just the cool tubular looks.
@@CentralVAracer I’m new to the fox body. Just got one with shorty bbk, e303 cam and bbk cold air with flow masters. She runs out of breath at 5k rpm but feels great down low. What’s the best bang for the buck manifold?
The hp on last test is nice but that torque curve is what I like.
Should do a intake shoot out. That would include trick flow as well
This is a great video on showing how important matching the engine parts combo is. I have so many friends that are disappointed when they do a string of bolt ons that are not matched or leave off some parts to save money and their cars are not much better than stock.
Should have contacted Bigdogs porting and tried one of their stage 2 and stage 3 ported Explorer/Cobra gt40s. The results would have been shocking.
Run plenty of ported (and modded) Cobras and GT40s over the last 30 years or so-we know what they do
@@richardholdener1727 so you know a what a cut, runners shortened to peak at 6,500rpm, 2.4 mcsa, 320cfm bolted together average runner flow with a 80mm 1,100cfm throttle body tunnel flow gt40 would have made 30plus hp more than any of the tested aftermarket manifolds. To many that would be a better test because it's doing something different than buying what everyone else has bought and getting the same limitations everyone has. We have plenty of back to back testing and we have found it hard to beat a properly ported/modified gt40 manifold.
This is a good test though. Keep up the great work!👍
@@richardholdener1727I’d really like to see you do one of his intakes . Everybody in the forums would like to see it .
thankie sir, ya know you make it so easy to build a good engine due to real life testing i greatly appreciate your time and effort
Very welcome
Waiting for the Aspirin giveaway for all the minds being blown...
Anyone see what the Foxbody Mustangs & the 1993 Cobra Mustangs were going for at Mecum Indianapolis 2022?? They are getting the appreciation they deserve, I'll just say that!
Haha I remember everyone that was into mustangs 20 years ago did what you’re talking about with stacking the horsepower gains.
Thanks for all that hard work! Lots of great information there!
You might not notice 24ft lbs missing, it's lots but it's like 7%. You will definitely notice 40hp especially when you can run it 1000rpm higher. You would only see that rpm once on the strip, and even then maybe never.
Wow. Thats a big jump in power from an intake. I estimated 60hp for the exaggerated test.
Wish I had seen stock 302 wtih Edelbrock performer RPM II intake.. just to see if it lost any power or what it did..
I think you could achieve the same sort of power with far less money spent by using a single four barrel carby and Victor Jr or the motorsport intake on a 351 or 347ci stroker, and stock GT-40 heads with a bowl blend.
I wanna see more 4cy and even 6cyl motors. CMON RICH , your roots are in 4 bangers man. Let's see some honda big bangs and how about a supercharged mini 1.6l big bang
Look at the Big bang Honda video that is up-along with many others (including V6s)
No dyno sound? I missed the "Weeeeeeeeeeeeeeeeehhhhhhhhhhhhhhhhhh! Lol
I have duplicated those results. An ebay systemax intake was worth 58 rwhp over a GT40 tubular.
Lies.
Not tuned ?
The car is ' 92 LX with a T-5. The long block combo at the time was 306 similar to the video. The cam was an E303 with 1.7s and AFR 165 58cc heads with shorty headers, off road H pipe, & electric fan.
With the unported GT-40 it made 274. With the Systemax it made 334rwhp.
I did port the GT 40 lower and ran that for awhile but it was a mess.
It was THIN in the runners and sucked alot of oil.
It made 316rwhp with that setup.
Do ford 300 4.9 build up
I built one found rare industrial ford 300 had 4.120 bore I placed common crank 4.00 stroke came to like 320 ish. I was young found out later it also had forge crank. And I made custom intake and exhaust dual I think 70mm throttle body one on for runner each and twin turbo , h beam rod full roller timing systems, and fully hand ported stage4 like port and polished and port matching and over sized valves
excellent info! i gave up trying to explain this, but maybe people will listen to you!
I would like the carbureted efi intake tests with like the spyder intake, pro m intake, Victor junior , trickflow. All of the carbureted style efi ones.
Really enjoyed the 302 and gt40.
Would love to see some truck 351w stuff or some 302 truck stuff, not alot of dyno numbers or dyno proven upgrade items on the truck Windsor motors
there are a few 351W videos up
Awesome to see some of your 5.0l ford testing, what about a comparison between an RPM air gap carby manifold and an EFI manifold like the RPM 2 for those thinking of converting from one to the other, keep up the great content Richard, by far my favourite you tuber
Not a bad idea. I’ll guesstimate that the carb will make more power up top, above 4600 RPM, and the efi will make more down low.
I did that test
I realise that you have most likely ran this test in the past as well as tons more I’m just waiting anxiously for you to share the results keep up the good work
@@richardholdener1727 have you posted it here ?
@@brettkelly1436 he did share the results
I would like to see what a stock 5.0l truck intake is good for
Awesome video! thank you for making it!
Thank you Richard!
I would like to see the same engine with a carb vs efi challenge. My 1994 5.0 was carb swapped and people say it makes less hp than stock
depends on the intake. The long runners of the EFI would get whipped by a single plane, above 4,500 RPM. But a carb cools the intake charge with the venturi effect of its "barrels", while the typical EFI intake has so much surface area, it soaks up a ton of heat. And with the shock towers in the engine compartment blocking airflow from rad to firewall, there's a lot of engine heat to soak up.
I'd love to see a nmra factory stock motor with all the tricks done up on that dyno 😉
That would be cool!
Amazing stuff you do thank you.
Searched around in hopes to find one but how 'bout a 351 EFI intake test? The Factory truck, Edelbrock Truck, TFS 351, Professional Products 351, and GT40 351.
would be cool
For the bank that was involved in one of these I think I'd just turbo it until it split down the middle then do a 351W in its place. Ford really did do the intake right though in terms of being able to modify it, GM had the TPI which looked cool but wasn't that great overall.
A intake comparison with forced induction would be nice primarily a centrifugal blower or turbo setup.
Intakes do the same thing under boost-tested that many times
@@richardholdener1727 Thanks for the info
Trickflow used to make a complete top end kit for the SBF from 88-96.
I tested their top end kit
@@richardholdener1727 results/verdict?
I’d like to see the Holley efi vs a victor jr and a rpm air gap
I tested the RPM II vs RPM Air Gap
Another great video.
Anyone put the Sniper EFI from Holley on the 5.0 HO??? I Love how all V8 Engines look with those types of EFIs on them. I think you would need the cowl hood to install in a foxbody tho. I would get the hood just for that!
Love this channel. Would love to see a test on a 351 before and after port and polishing to see if it's worth the effort. Maybe a comparison at same compression between stock, stock with p/polish, then after market heads on same engine to see the cost/benefit of each. Thanks Richard
I love unsponsored real world testing. This is literal proof that I don't need new heads or intake to increase low end torque in my 5.0 equipped bronco. I'm going to spend that money on lower gearing!
Thank you for this info, keep up the good work.
One of the big 5.0 Mustang magazines in the day, did a dyno test of intake manifolds. Found the low riser OEM intake used in T'birds and 94 GT Mustangs wasn't as restrictive as thought. That an Extrude Honed stock HO intake could match a GT40--when they were new and expensive, it was a consideration, tho Ron Anderson Performance could port one out and really make some dyno numbers. I would imagine an Extrude Honed Cobra or Explorer could do better, since you aren't going to hone a GT40 tubular.
Holley's Systamax reminds me of the $1,000 Saleen intake.
It would’ve been cool to see what the factory ho intake and gt40 would’ve done when they had the extrude hone treatment. I’d bet the hp numbers would’ve been very similar without the tq loss on this mild combo. I love all this info. Also second a junkyard gt 40 head and intake combo with a Motorsport alphabet cam. Thanks for the vids.
The tube GT-40 can't be ported-but the Cobra version can
Great video
Hello brother JT here was wondering your take on the Coyote ford motor that they are putting in the F150s
they make good power
can you compare differences between throttle body injection like Fitech vs a port injection style like the one used in this video?
How about a vid on a 9.5 deck. TFS box R vs. Vic and super vic. Both N.A. and boosted.
same thing happens NA and boosted
@@richardholdener1727 Did the box r make more power?
Richard, have you ever dyno'd a 5.0 with the old "pistons-in-backwards" trick to actually see if that adds the magical 15hp that people used to talk about?
Was it Comp Cams that made some crappy black plastic upper manifold that bolted onto the stock lower ?? “ not for supercharger or nitrous !”
Hartman powerbox, then Comp bought them I think.
Seemed like a lot of torque to lose at around 3500 rpm with the Holley
When my mom passed I got her 95 GT convertible 5.0 5 speed, it's pretty soft I mean it scoots along nice but definitely isn't "fast" plus it's blessed with 2:73 gears! Woohoo. I do like the cruise rpm but the gears seem so tall you can turn it to around 55 in 2nd! Anyway I've been researching engine mods and I'm a little discouraged at the gains and all out HP of the 5.0, I'm used to the gains of chevy 350s where 350hp+ is effortless. With 302s 300/325hp isnt as easy and 400hp seems pretty stout for a 302. Am I wasting my money trying to make the 5.0 powerful...? Seems like the only way to have decent power without spending alot of money to get that little 302 is cam n turbo the 5.0 for around 400hp or building a 350 to 375hp 351... I would think even 350 NA HP or 400 HP mild turbo in a sn95 would be pretty respectable street car...maybe where a has a T5 a little deeper gear like a 3.40/3.50 so I can still have a comfortable cruise rpm.
So, let me get this straight, one mod produces small gains but if you stack a bunch of mods on top of each other it produces big gains?? You don't say.
A. LATE MODEL MOPAR ..OR ANY ONES FAVORITE..like a Late model V12 hemi..or v10....I mean wtf is 2 or 4 more cylinders...from factories
Right on
In these test that made the most power.. what size injectors, throttle body and mass air meter were you using?? Thanks for the videos!!
no maf-it was speed density-36 or 42 pound injectors
I just sat on the toilet, perfect timing! Haha
TMI
Lol
Haha i can relate 😂
Me too! 😜
Great video, a lot of people still run and modify 5.0 mustang motors. Would have loved to have seen what a newer Holley Hi-Ram “LS” style intake is like in the same sort of tests.
What intake for a 363 Stroker for the street? What is the hp limit on the gt40 or the Holley? I want one that has the leaned over runners like stock that flows enough for a big Stroker.
Well stated sir. It's like buying an air filter that promises up to 45 hp gain... lmao Love the videos. keep em coming. Kinda wondering about the results of changing nothing more than LSA on an already somewhat efficient combo. I'm used to the 106 to 104 LSA cams even thou idle quality isn't very good unless compression is real good. In a street car though a vacuum brake booster becomes worthless. (maybe a hydraboost system would fix that idea though?) Just a thought.. Thanks again sir..
the lsa video is up (on an ls application)-tighter can improve power low and mid but does lose idle quality
@@richardholdener1727 how do i find that lsa vjo?
@@jlfastride1 Search for "lsa" on his channel. Here it is: th-cam.com/video/JUHwVCDjonU/w-d-xo.html
Hey Mr holdener i wanted to say thank you for your time i have learned so much. I think iam decided on my 351 and parts combo TFS top end kit with the 11r's and there efi and a cx gt45 turbo . the only thing is i don't know much about tuning especially with a turbo . where's a good place to start?
11:1 AF and very low timing
@@richardholdener1727 thank you
Would love to see some 289 engines, 2bbl vs Hi Po vs Shelby
Jeff Kopis if you would have read what I posted I was wanting to the see 2 bbl 289 vs the Hi Po vs the Shelby. Not just him putting these same parts on a 289. It would kinda be like another other guys cause to many people forget about the 289
There is a HiPo 289 video up
Richard Holdener I went back through the videos and didn’t seem to find it
so basically the e7's are the bottleneck that need to go first? intake and cam do little with stock heads?
Curious what the power differences are between carb and stock Efi on the 302, always ran one with a carb and dual plane intake.
dual plane carb is a lot better than stock H.O. EFI
@@richardholdener1727 cheaper too, procomp intake and distributor on a 302 swapped in a 240z back in high school.
@Jeff Kopis they do make carbs for mod motors they have for years and years. You dont see it alot but they do make em.
I bought a full lunatic balanced 408 stoker kit for my 351w. I had to cheap out on the pro comp 215 heads. Sent to machine shop for springs and a good look over. Used a Ford single plane high rise. Z 303 cam tried to stay all Ford I was dumb at the time. Any way my buddy ran a 79 sunbird with a 383. We both ran a glide with 4:56 gears. Stock suspension. Tubular k member on my 89 fox lx. 2007. They were all Chevy hardcore never even built a Ford. When they saw I had to do no block grinding for my rods to clear they were amazed. Stud girdle on mains and rockers. Very similar parts on both. They thought for sure my Windsor stood no chance. That Ford made no power crap was all I heard. Double the money later on my Ford even I was questioning my route I chose. We were on small tires. Foot braking no trans brake till later. Straight cut planetary for the glide killed my trans break budget and his. Any way we went to twiggs in Macon and Savannah before it closed and ran 6.10 all day no tuning no test. Once the mustang started to come around the economy fell out. I had to sell my engine for 5,000 to a cop in Atlanta. He said straight bolt up in his 91 he ran 9.80 in the quarter. These were N/A cars. Needless to say I noticed how much power and torque that 408 made which I'm not good on the cubes it was .40 over. It was a very impressive engine. Then I drove a built 347 and man the power band would kill that 383. Anyways just reminiscing the good ole day off 2005-07.
I remember back in the olden days [late 1990's ?] in the Summit or JEGS catalogs there was a "BOX" that would eliminate the runner's top section on OHV 5.0 and 5.8 EFI intakes.
I twould basically transform your stock 5.0 intake to a GM 1993 LT1 intake length and size wise, T/B remained at stock location.
Have you tested it before ? Have you seen in action ? Was it any good ?
If you haven't, would you consider testing one ? I always wondered if that thing was a sham or if it actually worked.
Downs, Cartech, Comp and TFS all made those Box uppers
@@richardholdener1727 was it any good ? Did you test any of it ? 🤔
The box intakes are mainly used for boosted applications.
@@Bird76Mojo76 I thought as much.👌🏻😊👍🏻 Way shorter travel for that additional air and acts as a surge box too.
Ever tested any fabricated "box" upper intakes? Curious how they stack up. Have a friend running a ported/extrude honed GT40 lower with an aluminum box upper on his 331 stroker. It seems to work well, but the new Holley hi ram for the SBFs have him looking at other options. I think it will give up too much under the curve unless he goes with a big solid roller and larger cylinder heads.
Hi would be better than box
This engine is such a boat anchor. Over 3k for less than 100hp gains 😂 thats ridiculous. Todays Modern modular ford V6 engines make more than that on just actual bolt ons. Intake , throttle body, headers , exhaust and a tune. I wouldn't spend any money on this engine personally. Go with the coyote 💪🏻
This was great but ever part shown cost a little coin. Cams are priced, a good set of heads are not $1500, headers are priced ok, intake another 1k it seems. What are the performance gains for the average guy doing on of these if he doesn't have 3k -4k to spend to make 350 whp
350 whp? 351W with junkyard GT40 heads, cam, springs-then add boost or nitrous
weird request, I'm curious hw a gt40 intake would compare to a carbed edlebrock performer RPM airgap
gt-40 will make less
@@richardholdener1727 by a substantial ammount?
Hey Richard... Could you test the Holley High Ram or Sniper intake for Ford please? I'm interested in how much of a difference that makes.
i have one
Hmm, what would happen if you started a engine with 2 different cylinder heads?
You can't tell a guy at car show did it on blown big block
it works fine
@@richardholdener1727 You deserve to get paid for these videos
Richard Holdener What if the valves were different sizes, wouldn’t it pump to much pressure in a chamber and overwork the rotating assembly
It just runs a little funny if the ports are mismatched but as long as the intake seals and it gets fuel and spark at the right times it'll run just fine
Hey Richard. Have you ever done any tests on a 351 with a map sensor that Has to go through smog. I would like to get more torque out of my 94 truck ?
there should be smog legal parts for that application
Can you do something with the tfs 205 11r Heads vs others on a 363
I second this! 👍
I've run those-they work very well
these intakes have been around a long time, I need to see what a Holley HI RAM with a side mount ford throttle body can do, can it beat the gt40 under the curve? can you borrow a professionally ported lower for the gt40 so its potential can be seen.
What if I go from a 2 barrel to a 4 barrel intake on an otherwise stock setup? More likely to see a decent gain?
yes-about 25 hp
Can you use that xe274hr cam with factory pistons? I'm assuming you would need rockers and springs with it regardless...?
yes with piston-you need springs, rockers are a good idea
Whats your opinion on holley Systemax heads? I'm aiming for around 300whp stock 94 bottom end, holley systemax heads, XE276HR Cam, GT40 intake and long tube headers with Mac prochamber exhaust. Think I'll be close ?
Richard, you achieved 261 HP on your stock 5.0 opposed to the factory-rated 225 HP. Is this due to the lack of the mass air system/intake, accessories, and the addition of headers?
yes
What compression was this engine Richard?
I wish I.could.send you my ported upper and lower explore intake.. youd be very impressed I think. We'll find out here soon what it does to the rear tire.. couple.other things was.ported.as.well.. bone stock 142k mile bottem end explorer engine.. i did.change the cam.
With flat-tops and assuming 64cc heads right about 10 to 1
I've run lots and lots of ported and modded Cobra and Explorer intakes over the last few decades
354 HP and 374 lb ft of torque would make for a fun Fox body with long tube headers, a full 3" dual exhaust with either Flowmaster or Borla mufflers. I'd love to have a Fox body with a mildly modified 302. I've ridden in a stroked 347 with all of the mods and it made around 600 hp and it was fun and fast, but my 612 whp Civic would've eaten it alive from a dig. In my humble opinion, while I am all about keeping it brand specific, it's hard to beat a Fox body with a well built LS with a good sized turbo on it...OR a GT500 swapped Fox, or a Voodoo swapped Fox, or a built Coyote swapped Fox. One thing I have always wanted to see was a 3.5L EcoBoost swapped Fox...idk why it's always been a dream of mine, but I have always wanted to see what the EcoBoost (hell, 3.5 OR 2.7) can do in a Fox...or even a SN95 (even though they're boats).
There's a guy up in Santa Rosa that does autocross in an SVO. I bought his old turbo setup. He had swapped in that 3.5 Eco. It's online somewhere.
Can you do a 5.0 from a Ford Explorer next?
I have run those
Richard, can you explain why you don't show dyno runs from idle? Since most people drive their cars on the street, I'm sure a lot of them would love to see how the bottom end is affected.
Also, do you have any comparisons of heat wrapping manifolds/exhausts?
you can't be at WOT at idle
@@richardholdener1727 Excuse my ignorance, but could you explain a bit further on that please?
In a previous video he said the engine dyno is limited on the minimum rpm it can run. Chassis dynos can go lower.
@@goldar4846
I have a 4.0L Jeep and I always wondered that same question. All I'm interested about is idle to maybe 3k.
Have you done a 4.6 2V intake test between the Dorman, procomp/speed master, and Ford performance oe replacement intakes?
no not that test
Richard Holdener
I was just wondering since it’s hard to find a comparison between the three common intakes people swap into their 4.6 pi motors.
to be honest if i had a 5.0 and it was a daily driver i would just put the GT 40 on it and call it a day
Port the upper and lower.. game changer. Will flow as much if not more than any of the after market intakes for have the price and "look" stock
@@19jody72 Lol, you can't really port the upper since it incorporates thin-wall tubes. But, you can port the Explorer intake which flows similar to the GT-40.
@@231mac lmao...Yeah, I meant the explorer intake.
porting the Explorer for additional flow will not allow it to make power like the RPM II or Systemax (porting does not change runner length)
@@richardholdener1727 so are you saying a ported upper and lower explorer intake will not make more power thN a stock one?
EDIT: you are the professional Richard, but that is simply not true. I know for a fact it does make more power than a stock out of the box rpmll.
I know it doesn't change runner length....but it does increase airflow which increases power as we all know.. as long as uts all matched of course
Same test but on a stock 351w
Hey, Richard. Where do you get your T shirts?
My wife makes most of them
Richard Holdener does she sell them?
Does anyone know if a 92 f150 can be tuned if yes how?
what happens when you add boost to the torque numbers at the bottom end that you lose naturally asperated with a freer flowing intake? Do you gain more or does the it still lag at the bottom compared to the more restrictive intake?
Stop thinking in terms of flow-the intake is not flow-its reflected waves that enhance cylinder filling (like boost) at specific engine speeds
How can their be a horsepower gain between stock and gt40 if the stock intake flows more cfm than the stock heads?
STOCK INTAKE IS RESTRICTIVE AND LONGER RUNNER
@@richardholdener1727 is it really more restrictive than the heads though? I thought the stock heads only flowed like 145cfm, surely the intake flows better than that
@@richardholdener1727 sorry, I totally had it backwards, the intake is 145cfm, heads at around 160cfm