@@mattfarahsmillionmilelexus Yamaha designed that intake and manufactured it in Japan. The SHO were assembled here, after receiving the completed engine assemblies from Yamaha in Japan.
I love my fabricated GT-40 intake. It's definitely the best looking Windsor intake, Back in the day people new in stock form the GT-40 performed a tad better, but the cast Cobra intake allowed for porting or extrude honing.
1994 SN Cobra had stock 60(!) mm tb with a 70(!) maf. It had larger inj 24lb vs 19lb for GT. Also larger fuel pump and a special “cobra” ecu program (more timing, etc). Upgrading to a 65 or 70mm tb was the first upgrade along with more timing. I bought it new in 94…miss her😢. Peace
Still love my GT40 tubular intake. It is a great street intake. I know there is better flowing intakes but I like the looks of it. Actually when I got this intake 20+ years ago, there was not many aftermarket intake available. Great video. I wish you put a chart up so we could see all the differences at once.
In Australia we had very few cars with the GT40 tubular intake, but 1998-2002 our 5 litres all had the Explorer manifold - but with a straight blanked EGR block (with no EGR). As well as looking neat I think it improved torque a little much like your Kenne Bell elbow.
The ford explorer Is my favorite for the bang for the buck and I have had excellent results ! I put explorer cam in a non ho once and it roared pretty good with the explorer intake ! Also I built a explorer gt40 e 303 in a 90 thunderbird that was excellent!!
Thanks for this video! I have an Explorer GT40 with a KB style elbow adapter on my SN95. I am a budget builder so it is nice to know that I am not losing that power in comparison to the other rarer and more expensive intakes. We may not be too far away from being able to 3D print some new upper intakes. I am looking forward to that 😀
Maybe if you have the ability to do it urself! I you gotta pay a professional you won't! I watch Richard's vedios every day. But, I started of with 5 liters. Once we put the first cheap cast flattop 351w in I never looked back! Made at 6000rpm what a 306 made at 7000! And shot 150 on it 4 -5 times a night 3-4 times a week! On pump gas!! Sold it to move up to a high dollar solid roller motor. Worse decision ever, it was fast! But race gas and maintenance is a bitch!
There's only so much port work you can do to the tubular upper. The explorer and cobra can be cut open, ported and welded back up. You also have the kink near the throttle body on the tubular. A ported GT40 styles intake shootout would be interesting
Interesting, as yet again my factory Aussie XR8 220kw (295hp), combo has what looks like a stock Explorer manifold, BUT it also has a bigger Tickford Straight-on 70mm throttle body !!
Picking up a 302 with a .520 lift cam (unknown brand), 93 Cobra intake, 65mm throttle body, and a 70mm mass air for $800. I think it's a pretty fair deal. Can't wait to get my fox moving again.
@@foxbodysandfreedom8595 it just has some ported and polished E7s on it. I plan to get a decent set of heads in the springs, hopefully she'll be finished here in a couple weeks!
Eons ago I read a MM&FF mag where they flow tested the GT40 and the 93 Cobra. The Cobra made exactly 200 CFM per runner. The GT40 varied between 203 and 199 per runner. Overall the GT40 averaged 202 CFM per runner but was inconsistent due to the crimp style tubing. The Cobra was spot on 200 CFM average due to the fact that it is cast.
Thanks for doing this video , its good stuff ! I did a topend kit on my 94 cobra trickflow 170 fast as cast, 75mm throttle body and port matched for larger opening , 4.0" power pipe cold air , pro-m 80mm maf , 1" phenolic spacer between upper and lower ,custom anderson ford motor sports B-31 Cam 270/280 , 218/228 , .544", full exhaust syst. Had lower intake ported , stock it flows 205-210cfm ,ported flows 250cfm. Was done by TMOSS PORTING , car has excellant throttle response with 3.73 gear ! would like to see the results for the ported lower intake , larger throttle body and port match the upper intake at throttle opening. Thanks for all you do for us motor heads we love it , it saves use a lot of money and time , keep up the good work !!!
I heard TMoss porting charges ALOT, and only ports the less restrictive lowers? How much did he charge, and in what year did you have your lower ported by TMoss?
Can you test the truck intakes vs the gt40 and maybe the edlebrock truck intake? I have one for my 86 f150 and am super curious if i should try and sell it and swap to a car intake!
Great tech! Thanks for all of your SBF content. I wish we could get you to test the porting work of the two “internet famous” guys. We’d see who’s really on point with their ported EFI GT40 lowers! (Edit for a typo)
Ah lastly back then a new cobra w/o leather was $22,600 with leather 23700. I traded in a “demo” 93 Lightning (HORRIBLE gas mileage even for a car guy). Bought the demo Lightning with 5500 miles for $18000. Dang
I don’t know why anyone is surprised they all perform the same basically. They’re all essentially the same upper intake manifold just in different looking packages. Very slight differences between them due to the vehicles they were required to fit into, but they’re all designed to flow the exact same.
Always wondered why no one ever reproduced these intakes with plastic. Cost efficient, cooler AITs, could sell high volumes .. Could anyone provide an explanation? Also with the 2000 cobra r intakes. Or even utilize 5.0 HO style intakes of tried and true design re-engineered to work on 4.6 SOHC and DOHC designs?
There was a couple companies...such as comp... who did plastic box uppers which were ok but tend to pop under boost. Over the years plastic does deteriorate....but other than weight savings it would have little affect overall.
Very interesting video, I didn't think there was going to be that much difference between the Explorer intake vs the Cobra intake. I would like to know if both cobra throttle bodies were the same size or not. I want to say think you for all these Videos you do. I show all my customers your videos. Keep up the Awesome work.
i like the gt40 tubular it looks best under the hood a cobra intake dont look cool under the hood of a lx .......my lx had the gt40 in the mid 90,s until i went carb and nitrous due to needing a piggy back system and laptop in 1996 that was way too expesnisve back then so i opted for the intake and carb ....i called the ford racing hot line back in 96 and they said 10kusd for a piggy back system and laptop so i went to a intake and carb that cost 500 usd including carb set up and intake and external electric fuel pump etc ....car ran mid 10 with a ecam and tfs high port heads and 150 shot of juice on 410 gears and 28x9 good years.............1.51 60 foot leaving on the juice 10.54 @ 127mph
@@bradmason5204 I road race a Mustang for an amateur endurance series. We must run stock intakes. No tubular. Cobra, Explorer or GT only. Here is my results from 8 hours of tuning with a stock cam, stock exhaust mini tube headers with no cats on completely stock GT40p heads and 1.72 roller rockers. We also ran a Cobra lower and Explorer lower. All runs done with an Explorer TB converted for Fox linkage and cable. All results at the wheels with Cobra crank pulley with P.S. and Alternator only. Fuel was 93 octane. 13.0 AFR with 13 degrees initial timing and a custom chip. We did not use the Explorer elbow. Hope this helps. 1. 95 Cobra upper and lower 261hp 2. 99 Explorer upper and lower 258hp 3. 91 Thunderbird upper and lower 257hp 4. 90 Mustang GT upper and lower 252hp 5. Explorer upper Cobra lower 252hp. All Torque outputs were within 4 ft/lbs for all 5 combinations. All the spacer does with these combinations is move the power curve down in the rpm range with no real gains in either Tq. or hp. More cam is needed to help a spacer work.
@@bradmason5204 Champ Car, AER, WRL. Ran A Sedan SCCA for years. A Sedan spec out a 600 CFM carb and an Edlebrock intake with Big Porting of GT40 heads. Now they use Edlebrock heads. That was a fun class. A lot more money but a fun class.
I’d love to see a video on intercooler piping size testing. I’m curious under boost how the piping size has an effect. Does bigger piping help an engine that makes 700-800 hp? Is 2.5” too small for that kind of power level?
I enjoy all of these tests. Just FYI the lightning GT40 upper is slightly different than the Ford racing GT40 upper. I have a Ford racing GT40 upper and the lightning top cap will not fit on it it is slightly shorter in the cap that came on it.
Just can't beat the look of those GT40 uppers! There are also industrial GT40 uppers out there, which are iron and which lack the EGR passage. But if I ever get ahold of one, I'll figure out a way to make it work on my Mustang.
Great video. I have a 93 cobra upper with a explorer lower ported by tmoss. I would love to have the tubular gt40 but they are going for crazy money. I have always loved the look of that intake.
I have a 331 with the E cam, Trick Flow Twisted Wedge heads, 75mm throttle body, Explorer intake, long tube headers. The compression ratio works out to be 9.6 to 1. But it only makes 240 horsepower at the rear wheels
@@1murder99 Although you would pick up Hp., if you had Big dogs fully stage 2 port your upper, and lower Explorer intake, along with running 1.72 scorpion endurance roller rockers for your 331,= prob. pick up 40+ wheel Hp!? The 240Hp to the wheels through aod trans., is about 70Hp, more than a stock aod 5.0 H.O.
Thank you for making this video. I saw an old magazine article that had the GT40, Cobra, and Explorer and they were all around the same hp. Do you have a baseline with the stock h.o. intake? Richard, I bought your book "5.0L Ford Dyno Tests." I'm sure the royalty check is on its way.
I used the 5.0 stock tb spacer with the get disabled and water out. This on an exploder intake. I think the additional plenum volume could make some difference. Hence your good elbow result.
Thanks to the Coyote, as much as I love sbf, they have become a thing of the past. For the money I will spend rebuilding a 8.2 deck or a 351, I can have a 1000hp factory sealed reliable daily driven Coyote.
Porting just the lower is NOT the way to go, as the upper is more of a restriction. The lower is much easier to port, this is why most porter's rec. the customer to do only the lowers,= they, the porters can charge alot of $ for minimal time, and effort. Big dog's porting will port the uppers, and lowers, plus the spacers, th. Bodys, headers, all for really great prices!
Thank you very interesting! Very useful information I needed for my foxbody build. I am Not sure if you saw these videos and I assure you it’s not a joke and I would love to hear your input. There’s a few videos where people are installing ls heads on ford engines. One was ls heads on a 351 Windsor, and theirs some on a ford inline 6! You should check it out it’s very intriguing. Very interested in the ls heads on the ford inline 6 that should have great results.
I'm going from an explorer intake with a ported lower and no elbow to a edelbrock performer rpm2 intake. hoping the edelbrock is a good piece cause I was very happy with the explorer intake.
@@richardholdener1727 it was a very aggressive port job. So much so that it had oil control issues due to thin walls and the addition of a heat shield. This was on a 9.5 :1 306 with as cast AFR 165 s and a 70mm tb. I was running an E303 at the time with 1.7s. And equal length shorty headers
A good added feature could be a list of the parts showing the HP differences at the end Tubular: 364.8hp/377.5tq SN95: 356hp/366tq Foxbody: 361hp/376.7tq Explorer 90°: 348hp/373tq No elbow: 354hp/375tq KB elbow: 361hp/375tq
We need to see a cast 93 cobra intake with the 1” added to the plenum (not phenolic spacer ) . I have cut a few apart to weld in the spacer to add volume and aid in upper rpm performance
I'd be very interested in seeing an intake shootout of early SBF intakes: OEM Cast iron 4bbl, Shelby high rise 4bbl, Edelbrock F4B, performer, performer airgap. It would be great to see how far intake design has progressed.
I don't know about you, but I have always had to run a spacer on my upper intake. Also, the inlet tube has a 90 on it between the TB & the MAF. Isn't that pretty much standard on all Fox Stangs?
Maybe I'm spit balling but this motor could benefit from a larger throttle body, period. Your previous talks with head flow and cam lift and duration with the given engine displacement makes me think the 65mm throttle is getting to the point of being small.
I'm looking for a vid or info on a base line 5.0L mustang with a 225 hp and doing a GT40 heads and intake swap. What are the relative gains and is it worth the money? My son has an 87' convertible we would like to add a little kick to it.
I have a video where I installed a GT-40 intake, I have another vid where I installed GT-40 pr heads, the combo would give you 50 hp or so-better with a cam
The non ho was a set point 19 lbs injectors a mustang lx computer speed density explorer cam that exceeds the max 444 lift and gt 40 explorer intake upgraded fuel pump stock e6 heads wide open exhaust ripped good but had a high idle? 88 crown vic with a 87 nose what a shame some a hole poured diesel in my tank and screwed me I was pissed!
🔔😎 Would have liked to see an overlay of the tubular and Explorer no elbow. THIS seems to be most likely comparison into a Fox. Curious of the TBird/SN95 HO upper. 🤔🤔 Thanks for sharing👍👍👍😎
Honestly it would have just been nice to have seen the factory throttle body from the Ford explorer which is a 70 mm instead of a 60 or 65 mm!! The 70 mm makes a big difference of horsepower and the air to fuel mixture ratio!! Not really hardly much of a comparison when the explorer comes factory with the 70 mm throttle body!? 👌🤷🤯😮💨
Was the throttle body off a 94 -95 cobra? I believe there a 60 mm and the GT was 56 mm. So that would explain why it drop off over the whole RPM range vs an 65 mm.
Richard, I think I’ve watched all of your Ford 5.0 intake and cylinder head comparison videos and I’d love to see or even your valuable opinion regarding the the stock intake manifolds and the Edelbrock Pro Flo 4 intake manifold. I believe my car has some ECU issues and I’m thinking about an upgrade to the Edelbrock Pro Flo 4 EFI. Thank you for your technical videos.
@@richardholdener1727 What would be the best choice on intake manifold? I’m planning to use the AFR heads and a street HR cam, 210/215 @050. Thank you for your advices.
Richard, have you ever done a direct comparison between the Holley Systemax II and the Edelbrock Performer RPM II on a normally aspirated 302? Thank you!
What's your best guess of using a edelbrock performer intake and a holley 600 cfm carb. I have a 95 5.0 ,.030, with an E303 cam and GT40p heads with upgraded springs and 1.6 roller rockers . For me anything in the mid- 300s would be awesome in my 55 F100. All things being equal could I add about 30hp to your test sample?
So I’m planning on building a fox body with a 408w. I have a trickflow R with the 90mm tb opening. It’s NOT the box one. Will this intake work well with a 408? It’s a street/strip car. I will be using TW 11R heads, and that 236 cam for strokers. I can always swap to the box R, but I’m scared it won’t fit under a 2.5 cowl hood!
Had a question... I know you have some good experience for a while now! A couple of months ago I put a 94 cobra upper intake and gt40 lower from a 90's explore on.... It has a small baffle and its sucking oil in the catchcan with my old intake i didn't have this issues Can you to tell me by switching to the lower with a big baffle will prevent oil suction through PCV??? Currently have a new 333 stroker with 7000 miles on it now in my 94 GT AODE with stock heads Any help is much appreciated
@@richardholdener1727 Ist catch can was hooked to back of intake normal spot and back of motor pcv. Then someone suggested to get a 2inlet catch can and put a 2nd pcv on driver valvecover up front to allow it to breath better, and it helped a lot but still catching a lot of oil in catch can through pcv... 333 stroker with 10.5/1 compression. I guess the small baffle isn't sufficient???
I had really good power with the GT40 intake, but I got even more power with the Edelbrock and the Edelbrock made the most power for me. The Edelbrock beat every other intake I tried. I used a 70mm throttle body. The GT40 intake just about as good as most of the other aftermarket intakes. Magic 5.0 camshaft I use is Crower 15511, which makes more power than the next larger Crower camshaft and equals the Ford 220/.498"/110 camshaft for power. Two Crower cam sizes up for a 331 stroker though. For me the GT40 intake was about as good as the Trick Flow intake, but the Edelbrock beat all of them. The Trick Flow valve springs are good, as is the Trick Flow stage two camshaft, if changing pistons. Both the Crower and Ford cams beat the Trick Flow stage one cam, but the stage two camshaft beat all of them, but requires piston clearance.
the RPM II is very good-but trades power like the SysteMax-the GT-40 is not close to power of either of those, nor does it make what a TFS Street Heat or Burner intake does
@@richardholdener1727 There was another one we tried and I think it was "II" version of the Holley Systemax (Systemax II). It was better than the GT40, but not as good as the RPM. Holley made a smaller Systemax version too, that wasn't very good at power, even compared to the GT40.
I wonder how the stock rubber tube type Fox 90* elbow hurts. Gotta get around that shock tower.... Always makes me wonder about the 93Bird, 94-5 swept intake. 🤔
The tubular gt-40 is the coolest looking intake manifold ford ever made imo
Agreed,.... but it's 10x the price for 10+ HP beyond 5400 rpm.
I paid $143 total for my non-EGR and throttle body.
SHO Taurus gets my vote.
@@mattfarahsmillionmilelexus Yamaha designed that intake and manufactured it in Japan. The SHO were assembled here, after receiving the completed engine assemblies from Yamaha in Japan.
Nah the sho Taurus had the coolest looking intake.
I remember when BBK came out with that one that looked like it should've had twin TB on it.
I love my fabricated GT-40 intake. It's definitely the best looking Windsor intake, Back in the day people new in stock form the GT-40 performed a tad better, but the cast Cobra intake allowed for porting or extrude honing.
1994 SN Cobra had stock 60(!) mm tb with a 70(!) maf. It had larger inj 24lb vs 19lb for GT. Also larger fuel pump and a special “cobra” ecu program (more timing, etc). Upgrading to a 65 or 70mm tb was the first upgrade along with more timing. I bought it new in 94…miss her😢. Peace
Still love my GT40 tubular intake. It is a great street intake. I know there is better flowing intakes but I like the looks of it. Actually when I got this intake 20+ years ago, there was not many aftermarket intake available. Great video. I wish you put a chart up so we could see all the differences at once.
ALL OF THEM ON 1 GRAPH WOULD BE TOO CONFUSING
@@richardholdener1727 Chart, not a graph like I said above. Not being rude.
In Australia we had very few cars with the GT40 tubular intake, but 1998-2002 our 5 litres all had the Explorer manifold - but with a straight blanked EGR block (with no EGR). As well as looking neat I think it improved torque a little much like your Kenne Bell elbow.
The best gt 40 intakes tests if seen on you tube! Thank you Richard!
The ford explorer Is my favorite for the bang for the buck and I have had excellent results ! I put explorer cam in a non ho once and it roared pretty good with the explorer intake ! Also I built a explorer gt40 e 303 in a 90 thunderbird that was excellent!!
I like the 93 Cobra .. the original ran neck n neck w the tubular GT40. Did it right.. right out of the gate. Enjoyed the comparison.. good job.
Man I keep getting surprised by your backlog of excellent sbf demonstrations. You are the man... I'm gona go buy a gt40 upper
Thanks for this video! I have an Explorer GT40 with a KB style elbow adapter on my SN95. I am a budget builder so it is nice to know that I am not losing that power in comparison to the other rarer and more expensive intakes. We may not be too far away from being able to 3D print some new upper intakes. I am looking forward to that 😀
Love this video!
For the money.. port a stock explorer intake ( upper and lower) and you'll be way ahead price wise than any of the intakes tested.
Yeah but you can also port all the other intakes and then it would out power the ported Explorer intake.
@@matthewvarnam4302 That is true, HOWEVER not by much and definitely for twice/three times the money!
Maybe if you have the ability to do it urself! I you gotta pay a professional you won't! I watch Richard's vedios every day. But, I started of with 5 liters. Once we put the first cheap cast flattop 351w in I never looked back! Made at 6000rpm what a 306 made at 7000! And shot 150 on it 4 -5 times a night 3-4 times a week! On pump gas!! Sold it to move up to a high dollar solid roller motor. Worse decision ever, it was fast! But race gas and maintenance is a bitch!
There's only so much port work you can do to the tubular upper. The explorer and cobra can be cut open, ported and welded back up. You also have the kink near the throttle body on the tubular. A ported GT40 styles intake shootout would be interesting
@@adamrushka8096 I'm not talking about the tubular one.. but you're right
That's a rare Explorer intake without the cast in tab for the cable stay. I've only seen two in the boneyards.
Awesome. This guy is working on the two motors I'm building 302sbf and the 3800. 93 Mustang LX and 99&01 GTP. This is a great sign lol
The gt40 was always my favorite among the factory intake manifolds.
Thank you Richard, another great video. I'm learning a lot.
Be blessed brother
Tried n true tubular GT40 is still sexist and most powerful!! I miss mine!! The optional cover with the horse was a sweet touch!!
Good video sir. I’m running tubular GT 40 w/V1 s trim. I know there is better out there but it looks cool as hell.
I sure wish you got more views for all the work you do for us!
Interesting, as yet again my factory Aussie XR8 220kw (295hp), combo has what looks like a stock Explorer manifold, BUT it also has a bigger Tickford Straight-on 70mm throttle body !!
Picking up a 302 with a .520 lift cam (unknown brand), 93 Cobra intake, 65mm throttle body, and a 70mm mass air for $800. I think it's a pretty fair deal. Can't wait to get my fox moving again.
Sounds awesome throw some gt40 or P heads on that and it'll be a ripper !
@@foxbodysandfreedom8595 it just has some ported and polished E7s on it. I plan to get a decent set of heads in the springs, hopefully she'll be finished here in a couple weeks!
Eons ago I read a MM&FF mag where they flow tested the GT40 and the 93 Cobra. The Cobra made exactly 200 CFM per runner. The GT40 varied between 203 and 199 per runner. Overall the GT40 averaged 202 CFM per runner but was inconsistent due to the crimp style tubing. The Cobra was spot on 200 CFM average due to the fact that it is cast.
the cast Cobra doesn't flow the same in every runner-1 and 5 are both longer and more twisted
Wow I like the nice elective surgery infomercial music during the engine introduction
Good confirmation that my choice of tubular on my car is the way to go. Good content!
Love it! Taking back 20 years !
Brings memories my 85 mustang GT .. fastest and most fuel efficient car I've owned. With all the mods
Love Your drive / effort on making great content !! Thank you!
Thanks for doing this video , its good stuff ! I did a topend kit on my 94 cobra trickflow 170 fast as cast, 75mm throttle body and port matched for larger opening , 4.0" power pipe cold air , pro-m 80mm maf , 1" phenolic spacer between upper and lower ,custom anderson ford motor sports B-31 Cam 270/280 , 218/228 , .544", full exhaust syst. Had lower intake ported , stock it flows 205-210cfm ,ported flows 250cfm. Was done by TMOSS PORTING , car has excellant throttle response with 3.73 gear ! would like to see the results for the ported lower intake , larger throttle body and port match the upper intake at throttle opening. Thanks for all you do for us motor heads we love it , it saves use a lot of money and time , keep up the good work !!!
I heard TMoss porting charges ALOT, and only ports the less restrictive lowers? How much did he charge, and in what year did you have your lower ported by TMoss?
Can you test the truck intakes vs the gt40 and maybe the edlebrock truck intake? I have one for my 86 f150 and am super curious if i should try and sell it and swap to a car intake!
If you can wait a while for it, send your intake to Big Dogs Porting. They do great work at a good price, but the wait times can be a while.
Love to see 351 truck intake vs carb vs any other intake manifold.
I love the comparison videos and my favorite is the GT-40 but I like the cobra intake when it’s extrude honed!!!!
I’ve always wanted a tubular GT40 intake, they look pretty cool!
Great tech! Thanks for all of your SBF content. I wish we could get you to test the porting work of the two “internet famous” guys. We’d see who’s really on point with their ported EFI GT40 lowers! (Edit for a typo)
Ah lastly back then a new cobra w/o leather was $22,600 with leather 23700. I traded in a “demo” 93 Lightning (HORRIBLE gas mileage even for a car guy). Bought the demo Lightning with 5500 miles for $18000. Dang
Impressive how well the Exploder manifold performed
I don’t know why anyone is surprised they all perform the same basically. They’re all essentially the same upper intake manifold just in different looking packages. Very slight differences between them due to the vehicles they were required to fit into, but they’re all designed to flow the exact same.
Always wondered why no one ever reproduced these intakes with plastic. Cost efficient, cooler AITs, could sell high volumes ..
Could anyone provide an explanation? Also with the 2000 cobra r intakes. Or even utilize 5.0 HO style intakes of tried and true design re-engineered to work on 4.6 SOHC and DOHC designs?
There was a couple companies...such as comp... who did plastic box uppers which were ok but tend to pop under boost. Over the years plastic does deteriorate....but other than weight savings it would have little affect overall.
Very interesting video, I didn't think there was going to be that much difference between the Explorer intake vs the Cobra intake. I would like to know if both cobra throttle bodies were the same size or not.
I want to say think you for all these Videos you do. I show all my customers your videos. Keep up the Awesome work.
i like the gt40 tubular it looks best under the hood a cobra intake dont look cool under the hood of a lx .......my lx had the gt40 in the mid 90,s until i went carb and nitrous due to needing a piggy back system and laptop in 1996 that was way too expesnisve back then so i opted for the intake and carb ....i called the ford racing hot line back in 96 and they said 10kusd for a piggy back system and laptop so i went to a intake and carb that cost 500 usd including carb set up and intake and external electric fuel pump etc ....car ran mid 10 with a ecam and tfs high port heads and 150 shot of juice on 410 gears and 28x9 good years.............1.51 60 foot leaving on the juice 10.54 @ 127mph
It would've been nice to see what a 1" spacer would effect.
Would take away 7HP, and give about 7 ft. pound in torque
@@FXRSDriver Based on?
@@bradmason5204 I road race a Mustang for an amateur endurance series. We must run stock intakes. No tubular. Cobra, Explorer or GT only. Here is my results from 8 hours of tuning with a stock cam, stock exhaust mini tube headers with no cats on completely stock GT40p heads and 1.72 roller rockers. We also ran a Cobra lower and Explorer lower. All runs done with an Explorer TB converted for Fox linkage and cable. All results at the wheels with Cobra crank pulley with P.S. and Alternator only. Fuel was 93 octane. 13.0 AFR with 13 degrees initial timing and a custom chip. We did not use the Explorer elbow. Hope this helps.
1. 95 Cobra upper and lower 261hp
2. 99 Explorer upper and lower 258hp
3. 91 Thunderbird upper and lower 257hp
4. 90 Mustang GT upper and lower 252hp
5. Explorer upper Cobra lower 252hp.
All Torque outputs were within 4 ft/lbs for all 5 combinations. All the spacer does with these combinations is move the power curve down in the rpm range with no real gains in either Tq. or hp. More cam is needed to help a spacer work.
@@dohcsmr1175 NASA CMC?
@@bradmason5204 Champ Car, AER, WRL. Ran A Sedan SCCA for years. A Sedan spec out a 600 CFM carb and an Edlebrock intake with Big Porting of GT40 heads. Now they use Edlebrock heads. That was a fun class. A lot more money but a fun class.
I’d love to see a video on intercooler piping size testing. I’m curious under boost how the piping size has an effect. Does bigger piping help an engine that makes 700-800 hp? Is 2.5” too small for that kind of power level?
I second this basic logic says less power but how much less smaller piping is much easier to run
I was wondering if you can do an episode that continues this comparison with the new Holley 351W HI-Ram EFI Manifold with a 95mm and a 102mm?
plan to test the Hi Ram
I enjoy all of these tests. Just FYI the lightning GT40 upper is slightly different than the Ford racing GT40 upper. I have a Ford racing GT40 upper and the lightning top cap will not fit on it it is slightly shorter in the cap that came on it.
Just can't beat the look of those GT40 uppers!
There are also industrial GT40 uppers out there, which are iron and which lack the EGR passage. But if I ever get ahold of one, I'll figure out a way to make it work on my Mustang.
Marine application.
Great video, wished you could have included the regular 5.0 intake.
Original flows about 170 CFM compared to @210.
Bigdogs Porting has all the data.
Great video. I have a 93 cobra upper with a explorer lower ported by tmoss. I would love to have the tubular gt40 but they are going for crazy money. I have always loved the look of that intake.
Bigdogs Porting... More flow better $$.
I've got a question about the Holly HP management system. Is that just a plug-in play system if you have mass air on a Windsor.
no
I have a 331 with the E cam, Trick Flow Twisted Wedge heads, 75mm throttle body, Explorer intake, long tube headers. The compression ratio works out to be 9.6 to 1. But it only makes 240 horsepower at the rear wheels
should be higher-is it an auto?
@@richardholdener1727 It has an AOD out of an 86 Lincoln. I did put larger exhaust on it after the dyno run.
@@1murder99 Although you would pick up Hp., if you had Big dogs fully stage 2 port your upper, and lower Explorer intake, along with running 1.72 scorpion endurance roller rockers for your 331,= prob. pick up 40+ wheel Hp!? The 240Hp to the wheels through aod trans., is about 70Hp, more than a stock aod 5.0 H.O.
Explorer intake is 10% less flow than the heads at 520 lift.
Thank you for making this video. I saw an old magazine article that had the GT40, Cobra, and Explorer and they were all around the same hp. Do you have a baseline with the stock h.o. intake?
Richard, I bought your book "5.0L Ford Dyno Tests." I'm sure the royalty check is on its way.
Richard has a video out now, showing the stock H.O. efi upper, and lower, intake, being about 18 to 20 Hp down on this engine combo.
HO flows 170.
Others about 205+-.
Thank you for the 5.0L tech!
what about the 5.8 truck manifolds?
Would have been interesting to see what a standard stock 5.0 GT/LX Fi intake would have done.
that video is up-it was down 18-20 hp to the GT-40
I used the 5.0 stock tb spacer with the get disabled and water out. This on an exploder intake. I think the additional plenum volume could make some difference. Hence your good elbow result.
plenum volume changes very little
@@richardholdener1727 Definitely not gonna argue man, you'd know better than I. The stock spacer sure ain't no billet elbow, that's for sure.
Man I miss the thunderbird man it brought back memories of that!!
Thanks to the Coyote, as much as I love sbf, they have become a thing of the past. For the money I will spend rebuilding a 8.2 deck or a 351, I can have a 1000hp factory sealed reliable daily driven Coyote.
Love your work Richard.
I would like to see what kind of numbers that engine would produce with the Holley high ram and Holley EFI
That would be nice to see.
Would be cool to one day see a test of the power difference between a ported lower vs stock on a gt40 intake.
Would pickup about 20-30, depending who ported it.
Porting just the lower is NOT the way to go, as the upper is more of a restriction. The lower is much easier to port, this is why most porter's rec. the customer to do only the lowers,= they, the porters can charge alot of $ for minimal time, and effort. Big dog's porting will port the uppers, and lowers, plus the spacers, th. Bodys, headers, all for really great prices!
how do these do vs a truck manifold? no one ever mentions much about the truck manifolds
Thank you very interesting! Very useful information I needed for my foxbody build. I am Not sure if you saw these videos and I assure you it’s not a joke and I would love to hear your input. There’s a few videos where people are installing ls heads on ford engines. One was ls heads on a 351 Windsor, and theirs some on a ford inline 6! You should check it out it’s very intriguing. Very interested in the ls heads on the ford inline 6 that should have great results.
Yes I have
SBF content! 👍
Great info. You can buy a whole explorer for the price of the tubular GT40 intake.
Yep, and get heads too 👍👍😎
I'm going from an explorer intake with a ported lower and no elbow to a edelbrock performer rpm2 intake. hoping the edelbrock is a good piece cause I was very happy with the explorer intake.
4k n up that RPM2 intake will be Awesome!
Losing lower torque
A lower port job on a GT-40 tube manifold was worth 30hp at the wheels.
An unported Systemmax was worth 10 over that.
30 hp from porting the lower? with the stock tubes and a 65mm throttle body?
@@richardholdener1727 it was a very aggressive port job. So much so that it had oil control issues due to thin walls and the addition of a heat shield.
This was on a 9.5 :1 306 with as cast AFR 165 s and a 70mm tb. I was running an E303 at the time with 1.7s. And equal length shorty headers
A good added feature could be a list of the parts showing the HP differences at the end
Tubular: 364.8hp/377.5tq
SN95: 356hp/366tq
Foxbody: 361hp/376.7tq
Explorer 90°: 348hp/373tq
No elbow: 354hp/375tq
KB elbow: 361hp/375tq
I recommend that people never look at just peak numbers-it tells you very little
@@richardholdener1727 100%, but with a test like this where manifolds are so close throughout, it helps. Either way, love the video like always!
We need to see a cast 93 cobra intake with the 1” added to the plenum (not phenolic spacer ) . I have cut a few apart to weld in the spacer to add volume and aid in upper rpm performance
I RAN THOSE BACK IN THE DAY
@@richardholdener1727 do you think it was worth the effort?
Rich, any idea of what those heads flow and their valve size. Maybe ballpark compression ratio? Great test. The elbow question is finally put to bed.
Run a test on one of bigdogs performance stage 3 gt40 or modded f150 intakes.
like to
I'd be very interested in seeing an intake shootout of early SBF intakes: OEM Cast iron 4bbl, Shelby high rise 4bbl, Edelbrock F4B, performer, performer airgap. It would be great to see how far intake design has progressed.
I don't know about you, but I have always had to run a spacer on my upper intake. Also, the inlet tube has a 90 on it between the TB & the MAF. Isn't that pretty much standard on all Fox Stangs?
the air intake tube does have a 90-we ran open TB
You are living the dream my man!
Maybe I'm spit balling but this motor could benefit from a larger throttle body, period. Your previous talks with head flow and cam lift and duration with the given engine displacement makes me think the 65mm throttle is getting to the point of being small.
it is too small
I'm looking for a vid or info on a base line 5.0L mustang with a 225 hp and doing a GT40 heads and intake swap. What are the relative gains and is it worth the money? My son has an 87' convertible we would like to add a little kick to it.
I have a video where I installed a GT-40 intake, I have another vid where I installed GT-40 pr heads, the combo would give you 50 hp or so-better with a cam
I'm guessing a performer air gap and carb would have put out better numbers
Carb, LOL
The non ho was a set point 19 lbs injectors a mustang lx computer speed density explorer cam that exceeds the max 444 lift and gt 40 explorer intake upgraded fuel pump stock e6 heads wide open exhaust ripped good but had a high idle? 88 crown vic with a 87 nose what a shame some a hole poured diesel in my tank and screwed me I was pissed!
Man I wish you could do a 351w truck intake, stock ported & edelbrock with some heads & cam for us truck guys
planned
I’m all ears
🔔😎
Would have liked to see an overlay of the tubular and Explorer no elbow. THIS seems to be most likely comparison into a Fox.
Curious of the TBird/SN95 HO upper. 🤔🤔
Thanks for sharing👍👍👍😎
THOUGHT I SHOWED THAT
@@richardholdener1727
Don't see an overlay. But that's fine thank you for the graphs👍👍👍🇺🇸😎
Rewatching 11/24.
Rewatching 11/24
Honestly it would have just been nice to have seen the factory throttle body from the Ford explorer which is a 70 mm instead of a 60 or 65 mm!! The 70 mm makes a big difference of horsepower and the air to fuel mixture ratio!! Not really hardly much of a comparison when the explorer comes factory with the 70 mm throttle body!? 👌🤷🤯😮💨
I have a 94 F150 5.0 is there another style intake with direct injection that would produce better HP and torque ?
certainly yes for hp
Was the throttle body off a 94 -95 cobra? I believe there a 60 mm and the GT was 56 mm. So that would explain why it drop off over the whole RPM range vs an 65 mm.
the SN95 didn't get a 65 unfortunately
Great work!
Could you do comparison of intakes after a extrude honing on each =)
Richard, I think I’ve watched all of your Ford 5.0 intake and cylinder head comparison videos and I’d love to see or even your valuable opinion regarding the the stock intake manifolds and the Edelbrock Pro Flo 4 intake manifold. I believe my car has some ECU issues and I’m thinking about an upgrade to the Edelbrock Pro Flo 4 EFI. Thank you for your technical videos.
IF YOU ARE TALKING ABOUT THE SINGLE-PLANE EFI INTAKE-NOT A GOOD CHOICE
@@richardholdener1727 What would be the best choice on intake manifold? I’m planning to use the AFR heads and a street HR cam, 210/215 @050. Thank you for your advices.
Man for $600 you can't go wrong with the explorer engine!!!!!
Richard, have you ever done a direct comparison between the Holley Systemax II and the Edelbrock Performer RPM II on a normally aspirated 302? Thank you!
no sir-should be similar
@@richardholdener1727 thank you! Love your videos!
How would the cobra R intake compare to a decent carb and dual plane setup?
Dual Plane is usually better than these long runner intakes
What's your best guess of using a edelbrock performer intake and a holley 600 cfm carb. I have a 95 5.0 ,.030, with an E303 cam and GT40p heads with upgraded springs and 1.6 roller rockers . For me anything in the mid- 300s would be awesome in my 55 F100. All things being equal could I add about 30hp to your test sample?
YOUR P HEADS WOULD BE WAY DOWN COMPARED TO THESE BPE CNC HEADS
So I’m planning on building a fox body with a 408w. I have a trickflow R with the 90mm tb opening. It’s NOT the box one. Will this intake work well with a 408? It’s a street/strip car. I will be using TW 11R heads, and that 236 cam for strokers. I can always swap to the box R, but I’m scared it won’t fit under a 2.5 cowl hood!
THE BOX MAKES MORE POWER THAN THE R-THAT VID IS UP I BELIEVE
The tbird I ran the gt 40 cast iron man for a man on a budget that's the way to go
Crazy question here. Why are those manifolds designed that way compared to more "modern" type manifolds like on the Coyote?
THE LONG RUNNER DESIGN IS VERY SIMILAR TO A COYOTE
@@richardholdener1727 Thank-you very much for taking time to answer my question! I guess the box shape is some kind plenum?
Had a question... I know you have some good experience for a while now! A couple of months ago I put a 94 cobra upper intake and gt40 lower from a 90's explore on....
It has a small baffle and its sucking oil in the catchcan with my old intake i didn't have this issues Can you to tell me by switching to the lower with a big baffle will prevent oil suction through PCV???
Currently have a new 333 stroker with 7000 miles on it now in my 94 GT AODE with stock heads
Any help is much appreciated
WHAT IS THE CATCH CAN HOOKED TO (VALVE COVER, LOW INTAKE, ETC...)
@@richardholdener1727 Ist catch can was hooked to back of intake normal spot and back of motor pcv. Then someone suggested to get a 2inlet catch can and put a 2nd pcv on driver valvecover up front to allow it to breath better, and it helped a lot but still catching a lot of oil in catch can through pcv...
333 stroker with 10.5/1 compression. I guess the small baffle isn't sufficient???
@@richardholdener1727 any help is greatly apprecieated
I had really good power with the GT40 intake, but I got even more power with the Edelbrock and the Edelbrock made the most power for me. The Edelbrock beat every other intake I tried. I used a 70mm throttle body. The GT40 intake just about as good as most of the other aftermarket intakes. Magic 5.0 camshaft I use is Crower 15511, which makes more power than the next larger Crower camshaft and equals the Ford 220/.498"/110 camshaft for power. Two Crower cam sizes up for a 331 stroker though. For me the GT40 intake was about as good as the Trick Flow intake, but the Edelbrock beat all of them. The Trick Flow valve springs are good, as is the Trick Flow stage two camshaft, if changing pistons. Both the Crower and Ford cams beat the Trick Flow stage one cam, but the stage two camshaft beat all of them, but requires piston clearance.
Which edelbrock intake are you talking about here the performer or the rpm
@@brettkelly1436 The RPM. I didn't know Edelbrock made a smaller one.
They used to make a lower RPM version just called the Performer, as opposed to Performer RPM. No longer in production I think.
the RPM II is very good-but trades power like the SysteMax-the GT-40 is not close to power of either of those, nor does it make what a TFS Street Heat or Burner intake does
@@richardholdener1727 There was another one we tried and I think it was "II" version of the Holley Systemax (Systemax II). It was better than the GT40, but not as good as the RPM. Holley made a smaller Systemax version too, that wasn't very good at power, even compared to the GT40.
The stock SN95 throttle body which was used is 60mm
yes, 58MM technically but you can round up
Sweet video. Mine is the first and last intake. Did u use the fel pro 1250 intake gaskets? Also be cool to do a test with a truck intake
these heads require 1262s
@@richardholdener1727 ok, thank you for letting me know
I have question is more efficient to running a good size turbo or running two small twin turbos on a v6 or v8 engines
same if they are sized for the power
It would’ve been interesting to see what spacers between the upper and lower intakes do.
they add runner length-but I would like to test to show what it does
And also the EGR/throttle body spacer on explorer intake.
Just for S&G's wish you would have thrown a Trick Flow upper on it.
I have TFS top end vids up
Was lower ported? Just to make sure the lower wasn't the limiting factor on the test
no
I'm just now starting to build my 94 mustang and I have a few questions. Do you have a recommended street build list?
look at the vids and pick a power level
Good, more sbf content
Actually surprised to see the 90° elbow isn't all that restrictive.
I wonder how the stock rubber tube type Fox 90* elbow hurts. Gotta get around that shock tower.... Always makes me wonder about the 93Bird, 94-5 swept intake. 🤔
Great video