Highest horsepower unopened engine
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,466
Likes: 43
From: Auburn MA
Highest horsepower unopened engine
Is there a C4 record for highest horsepower for a stock engine, stock unmodified heads, stock un modified intake manifold, stock cam and stock rotating assembly for LT1/4, LT5, L98, or cross fire. So the only power mods could be turbo/blower Nitrous, bolt-ons. Just curious how far these engines have been pushed before they have blown up.
Last edited by Impala Balko; Dec 24, 2020 at 10:14 PM.
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
Is there a C4 record for highest horsepower for a stock engine, stock unmodified heads, stock un modified intake manifold, stock cam and stock rotating assembly for LT1/4, LT5, L98, or cross fire. So the only power mods could be turbo/blower Nitrous, bolt-ons. Just curious how far these engines have been pushed before they have blown up.
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,466
Likes: 43
From: Auburn MA
Well let me put my setup out there, completely stock unopened 94 LT1 with a 76mm remote mounted On3 Performance turbo, Exotic Muscle LTs dynoed 426rwhp on a Mustang Dyno with 458 rw ft/Lbs of torque with 10lbs of boost. I have since upgraded to an air to air intercooler (because the old setup wasn't intercooled) , 58mm throttle body, and a Precision Turbo 7675 turbo, so hopefully there is a little more left in it.
Last edited by Impala Balko; Dec 24, 2020 at 11:41 PM.
Drifting
Joined: May 2020
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From: Baton Rouge, Louisiana, metro area
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,466
Likes: 43
From: Auburn MA
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Le Mans Master
Joined: Apr 2000
Posts: 5,713
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From: Manassas VA
[QUOTE=Impala Balko;1602720536]Well let me put my setup out there, completely stock unopened 94 LT1 with a 76mm remote mounted On3 Performance turbo, Exotic Muscle LTs dynoed 426rwhp on a Mustang Dyno with 458 rw ft/Lbs of torque with 10lbs of boost. I have since upgraded to an air to air intercooler (because the old setup wasn't intercooled) , 58mm throttle body, and a Precision Turbo 7675 turbo, so hopefully there is a little more left in it.
/QUOTE]
Well, IMO until someone post something better then 426rwhp on a mustang dyno, you hold the record. FWIW I really like that car of yours. I like seeing builds where the person built their car, rather then just writing a check.... That is what hot rodding is all about, at least for me!!
/QUOTE]
Well, IMO until someone post something better then 426rwhp on a mustang dyno, you hold the record. FWIW I really like that car of yours. I like seeing builds where the person built their car, rather then just writing a check.... That is what hot rodding is all about, at least for me!!
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
LOL, yeah, I got one of those poor builds..... idles at 800 rpms, cruises fine with AC, dyno pulls of 462 rwhp and 398 tq....... on the first 1/4 mile shake down runs, it ran a 11.17 at 124.6 mph.
So, lets compare it to yours, shall we....
Both are running aftermarket cams, headers, and AFR heads.
It would seem the real difference is, I spent about $1500.00 on a stroker kit, and you spent thousands and thousands on a supercharger.
And for what? a 12 sec. 120 mph car? and claims of 510 rwhp and 500 tq.?
Now dont take it that I am against blowers, im not. In fact, racing with one usually will put you in a different class. (power adder)
If, you are truly making the power you claim, that car with a 6sp should trap past 130 mph.
Instead of constantly trying to tell everyone, how superior the LT1 opti spark supercharged, no need for a stroker combo that you have is, and how dumb and foolish the rest of us are for what we built,
Why dont you get yours to run some respectable numbers.
12 sec. at 120 mph wont even raise eyebrows with the honda crowd these days.
Le Mans Master
Joined: Oct 2004
Posts: 6,314
Likes: 508
From: South-central Missouri
Stock short LT5 block, throttle body, stock cams, ported, 3" exhaust, SW headers and SW "X" pipe. This is an example of what really opened the eyes of this old SBC hot rodder - what could be done with a properly ported pent-roof 4-valve heads:
432 rw hp, smooth idle, stock (16) 21# injectors, 26.4 mpg @ 70mph. Totally streetable w/ the AC on to boot and meets emissions standards (in most states).. Not bad for a starting point. Cams, stroking, sleeves, etc., not to mention forced induction opens up some incredible performance without sounding like a "box of rocks" at idle...
432 rw hp, smooth idle, stock (16) 21# injectors, 26.4 mpg @ 70mph. Totally streetable w/ the AC on to boot and meets emissions standards (in most states).. Not bad for a starting point. Cams, stroking, sleeves, etc., not to mention forced induction opens up some incredible performance without sounding like a "box of rocks" at idle...
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,466
Likes: 43
From: Auburn MA
[QUOTE=93 ragtop;1602729632]
Well, IMO until someone post something better then 426rwhp on a mustang dyno, you hold the record. FWIW I really like that car of yours. I like seeing builds where the person built their car, rather then just writing a check.... That is what hot rodding is all about, at least for me!!
thanks I appreciate it... it was a fun project that I learned a ton by doing it.
Well let me put my setup out there, completely stock unopened 94 LT1 with a 76mm remote mounted On3 Performance turbo, Exotic Muscle LTs dynoed 426rwhp on a Mustang Dyno with 458 rw ft/Lbs of torque with 10lbs of boost. I have since upgraded to an air to air intercooler (because the old setup wasn't intercooled) , 58mm throttle body, and a Precision Turbo 7675 turbo, so hopefully there is a little more left in it.
/QUOTE]
/QUOTE]
Well, IMO until someone post something better then 426rwhp on a mustang dyno, you hold the record. FWIW I really like that car of yours. I like seeing builds where the person built their car, rather then just writing a check.... That is what hot rodding is all about, at least for me!!
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
LOL, yeah, I got one of those poor builds..... idles at 800 rpms, cruises fine with AC, dyno pulls of 462 rwhp and 398 tq....... on the first 1/4 mile shake down runs, it ran a 11.17 at 124.6 mph.
So, lets compare it to yours, shall we....
Both are running aftermarket cams, headers, and AFR heads.
It would seem the real difference is, I spent about $1500.00 on a stroker kit, and you spent thousands and thousands on a supercharger.
And for what? a 12 sec. 120 mph car? and claims of 510 rwhp and 500 tq.?
Now dont take it that I am against blowers, im not. In fact, racing with one usually will put you in a different class. (power adder)
If, you are truly making the power you claim, that car with a 6sp should trap past 130 mph.
Instead of constantly trying to tell everyone, how superior the LT1 opti spark supercharged, no need for a stroker combo that you have is, and how dumb and foolish the rest of us are for what we built,
Why dont you get yours to run some respectable numbers.
12 sec. at 120 mph wont even raise eyebrows with the honda crowd these days.
Its all about perspective.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
There are Honda guys out there that would laugh at you for going through the trouble of a full stroke rebuild with aftermarket heads, cam, headers, etc, just to go slower than they did by tossing a turbo on their 4-cylinder without opening it up.
Its all about perspective.
Its all about perspective.
Sure there is..... And I know there are Hondas faster then most on here including yours.
But the point I was making is, dizwiz is constantly putting other peoples cars down, especially if they are running a LS or tpi, automatic, or anything he dosent like.
This forum should be a place to exchange ideas on what we do, how it works, and generally trying to help each other.
If he wants to constantly put other peoples cars down, there is the off topic section for that.