STREET COMPRESSION, TIMING, CARBS/THROTTLE BODY "ROAR" AND DUAL EXHAUSTS! ETC...
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- I go thru some details of what I experienced from years of racing...
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I learn something every time I come to your channel, thanks for sharing your Knowledge !
Thanks for tuning in!
So much information here I watched it 3 times. Thank you
Thank you sir.
Man your videos are always full of great information and has me thinking about my setup all the time seeing if or where I screwed up 😅😂 and if I can change anything to make more powah cause we are always wanting more of that stuff and you know how to get it 😁
Thanks as usual and glad I am able to guide and help!
@@benalamedaracing2765 You're welcome, just when I thought i knew it all you pop up and say , you're not even close 😂🤣😂
Thankyou Ben for your easily understood style of explanations and sharing your real world wisdom
I tried to keep it as simple as possible so it is easily understood! I noticed many get too technical and many do not really care for that style of tech videos.
Thanks for giving ppl the perspective and keeping it real. 💯 your experience in the race and severe duty arena is much appreciated by many of us. I live how you call out ppl skimping out on compression!!
It really pains me to see a promising build strap down with low compression turning potential into an instant dog!
Hi ben i tryed your oil expander mod to loosen up piston drag on pistons it works great ,engine is alot more freeer reving.thanks for all your tips and tricks.happy new year and have a blessed day
Thanks and it throttle response really improves!
Oh I haven't seen that one. I'm going back to find that one too thank you!
Thanks Ben God Bless!
Thank you and also with you sir.
Found your channel a couple weeks ago. Ive learned more from you than any other. Maybe i just understand it better the way you explain it. I am a ford guy but my love is the old FE engines. Would love to use your knowledge on those engines. Thanks you for sharing your knowledge!
I recall they called it "Woofing" to get attention for racing. making that bog noise. I once told a guy the 850 DP Holley was too big for his 340 Duster, when he took it around the block the huge Bog "HUHHH" nise. he later said yeah too much
I bet that was a sobering reminder for him! lol
Love the information you have shared I have leaned so much thank you Ben!
Abdullah!
Will keep this going regardless of what engine it is and they all respond the same!
The VW dual exhaust with headers is somewhat similar to a crossplane crank V8, with a pair of cylinders firing close together creating a high pressure pulse as if there was one big cylinder. With the VW the two cylinders fire 180° apart. If a dual exhaust is favored for whatever reason, it would be better to pipe the front two cylinders together and the rear two cylinders together. This would give 360° between exhaust pulses. The closed exhaust valve on one cylinder would prevent any dilution of the intake air with hot exhaust.
I do believe that in combination with a merge collector of the two headers would providen the best torque over a broad RPM range.
Ever think why Subaru engines have a bit of bark like a V8 even with a single exhaust or turbo. It is the two exhaust pulses, one from each bank, as the cylinders fire 180° apart. To the collector on each side this appears to be one big cylinder on each side. This gives that Harley reminiscent exhaust note.
Now if a person looks at the Mazda Skyactiv videos that describe their research into the exhaust and manifold/header design to enable using 13:1 compression and 87 fuel, could provide information on how Subaru performance might be improved or lower ocane (read less expensive) fuel could be used. And gosh with todays prices we sure need to have all the tricks in play to reduce our fuel costs.
More good information Ben. Thank you.
Have a great weekend Ben.
Do you earned yourself a sub! I love this old school knowledge you and mr vizard Andy at unity Motorsports.
Thanks John!
Thank you for the info Ben. And your not a dying breed for N/a guys like me. It's alot easier to get horses with boost. But they usually can't get crap out of non boosted engine lol.
Got to know the basics of good builds before we go from there I agree!
I swear my old mustang has a chip in it or something, anything over 12* timing in it and it’s detonate on 93. I could put at ten and still could not run anything but 93 in it. Makes sense, it’d walk away from every other stock ish 5.0 it raced. Heck it beat some cars it didn’t have any business doing so. Love your videos. I can’t wait to get my newer to me 95 5,0 hopped up.
They may have ramp up the ignition curve or your timing marks are off! They are a piece of steel plate that easily bends and shows you a wrong number a possibility.
Thanks ben! I"m a mopar guy but its still useful info for me.
I am collecting all my pics and info on my twin turbo all aluminum B1 project and it has a rare Koffels cylinder heads.
You're going to stir some stuff up when some of Richard Holdener's followers watch this about sizing carbs!
I have yet to see anyone with a 10:1 stroker tells everyone he really went quicker at the track with a 950cfm carb! The example I gave is a mid ten sec. engine making about 600hp (426cid 11.5 comp.) and still went quicker with a 750 vs. an 850. What would a 950cfm do? It will dyno well that is a given but we do not race dyno's we race the track. Well I do that is a fact been there many times and done that.
In short it is the difference between the dyno world and the world of competition running a race.
@@benalamedaracing2765 I never had the luxery of a dyno for the first 10 years of racing cars but at the track or on the street I knew what worked and what didn't because I was beating guys with bigger engines and a lot more money invested than I did. A lot of those former magazine guys live by the monkey see monkey do mantra!
Hi Ben, really like your way of explaining how to make power and how to get as much as you can out of everything. I am building a sbc .o60 over 400. 4.185 bore 3.750 stroke. I have a scat lightened crank and 6 inch I beam rods 2.02 1.60 aluminum heads 205 runners edelbrock victor jr. Now I am trying to figure what compression and cam to use. It is going into a 55 Chevy 1/2 ton pickup with a th350 and 9 inch with 4.56 gears. I have been looking at Howards cams 106 LSA and 102 intake centerline and comparing them using the Wallace Dynamic calculaters. I am finding cams that make dynamic pressures of 8.5 to 9.5 and dynamic pressures from 180 to 195+. Those numbers change from cam to cam depending on the static compression that I calculate and duration of the cam. It also changes the effective stroke for every combination that I come up with and also the overlap. What I need help with is trying to find the right mix of dynamic cranking pressure and dynamic compresstion and is it better to have a longer effective stroke ? I am here is CA and will run this at Sears point and Somoa and probably more time at the track then on the streets but I would like to be able to run it on 91 and still make good power. The truck should be around 3400 pounds and maybe less since I still have things that can be changed to make it lighter. Any idea's to make this engine perform would be great. I have a friend that runs a 65 F100 and he is putting a stroked 428 in it so I have to try to get as much as I can out of this 400. Oh yeah I will be running a single 4 barrel. Thanks again for all the cool shows that you are making and all of the very useful and very very good tips and information. Sorry for this being so long. Thanks, Pat
I feel you should talk with Rod/Nolan @ Iskenderian Cams because they have so much feedback from racers like myself on what is the best grind! How long is the longest straightaway and how tight are the corners! In fact Nolan does this a lot for many circle track and he nails the grinds all the time. Google Iskenderian and they are in Gardena in California and just mention my name and they will take you seriously. Nolan is super busy and Rod would also be a good one to talk to.
Ben, I want to thank you for putting the cookies on the table for us to reach. When it comes to measuring cranking compression with a gauge, I have noticed about a 25-30 psi DECREASE after switching from an old-school ford starter to a newer style mini starter. When you recommend a ballpark of 190psi for pump gas, what starter is being used? Mini? Have you ever experienced differing pressures due to starter style?
Not really except if the starter really was worn out with very high resistance will turn much slower and the new one will definitely crank faster and posts a higher reading. Normally they all turn close to each other if they are in good shape from battery to starter to the ground/positive connections.
Is that an old pencil sharpener next to the coffee cup???
Yes it is! lol
Another great video Ben. Have you done much with E85/Pump E85 with carbys? Curious to know your thoughts and experience on Gasoline vs E85
A converted carb with e85 are very good! For max street it is much better from a performance standpoint.
great info for a street or drag racer.i think i will watch this video several times,esp. when im working on my bb comet.my car is a 66 comet with a 433 fe 100 shot,4 speed,4.11 gear street car.owned and street raced for 41 years.im throwing some parts on it that i get from famous people for conversation at the track or shows. i got a parachute off Steve Morris. do you have some universal part i could buy for my comet,guage,shifter knob,etc.anything from one of your cars just to say i have something from Ben Alameda!
I am doing the FE aluminum block at the moment, 482cid.
yea i know,im the one who told all my buds on the forums about your channel.@@benalamedaracing2765
I have a set of sbf kpitfs as cast high ports i will be porting soon. Cam selection i am still learning. Done with pwr adders for now, going N/A street strip calculated 11.8-12.2
You have the heads to accomplish that goal.
Hi Ben, E7 ported with chamber work and 11.5:1 domes. Good sleeper combo? Thoughts.. Sure you have seen.
Did it before also by pushing in an aluminum bushing to get rid of the pushrod bump on the intake ports. Then 1.94 x 1.60 valves will work impressively!
I have noticed in the 5.0 community there is no priority placed on compression, they love low lift cams, and the words “quench distance” are non-existent! I am speaking in terms of TH-cam videos and online forums! I also need educated on why 5.0’s are not revved and a lot make peak HP at 5500 rpm?!? I used to drag race 289’s and spin the piss out of them.....a short stroke doesn’t make torque so you spin it up for HP and gear down to compensate! What gives there....?
The heads are very limited as far as flow is concerned therefore lots of overlap is applied to their camshaft like a Super Stock grind. Compression meanwhile is not important because there are emission considerations to pass so there is that. When these issues as addressed then the engine responds and produces power like you found out.
@@benalamedaracing2765 Thanks Ben! Will a 5.0 short block handle high RPM like a 289 or is there a weak link in the system? I saw where someone stated something about there being a balancing issue with the engine that’s limits RPM’s.
How are these new drag racing records being done with hydraulic rollers?
At this point few of us have a way of making it act like a solid roller and that is how far I can go for now because I may piss off some of the 5.0 guys who are good friends...
I get it❤
Also I don't want my car loud. I am building my Vic into sleeper. So a single 3 inch would probably be pretty awesome. I've always been a "duel exhaust with Flowmasters" type guy. But I don't want it loud. Throaty but not loud.
I love the flowmaster sound and it is just about the same if you installed an "X" pipe between the two banks will basically function the same.
I'll get rid of the original H- pipe and run a X-pipe instead then.
Thank you sir!!!
Quadrajets make a good "roar" :)
Yes they do as well as the Mopar with Carter Thermoquads!
The saving grace for both of them are the tiny primaries and if not for these, they can all win the best engine roar! lol
Do not forget they also have an air valve on top of the secondaries and if not for that, that roar becomes a big bog down falling flat on its rpms!
Firehawk was the Firestone tire I believe
You are probably correct and thank you!
@benalamedaracing2765 keep up with your awesome work & knowledge 👍
@@jackwillson8099 thanks Jack!
@benalamedaracing2765 any time my friend keep up the awesome work
F cam ok 306 e7 ported head na mustang 5 speed 355 gears.
Specially if you are geared it works!
Brother, I've been wondering about running a single 3 inch on my Ls3 03'Crown Vic Police Interceptor I am swapping.
No room for a single 3 inch so you are better off with an X pipe joining both banks.
And I can’t get my turbo 351w to make anything 😔
How did you set it up? ALL engines should respond even those with poor potential.