[Clegg]

Survey. What is the most horsepower per cubic inch every achieved by any Pontiac NA

[tom s]

I think Picketts 428 made 2.64 HP per CI and backed it up on the track.Was a few year ago.Warp heads.Tom

[Dragncar]

How much better is that vs a real Pontiac head ? RAIV style or RAV
Canted valve Ford head on a Pontiac, meh.

[slowbird]

Originally Posted by tom s

I think Picketts 428 made 2.64 HP per CI and backed it up on the track.Was a few year ago.Warp heads.Tom

I don't know about that Tom.
I think 2.30 to 2.35 is about it

[tom s]

I would have to go back through the threads,was years ago.Stan might remember?Tom

[Stan Weiss]

Originally Posted by tom s

I think Picketts 428 made 2.64 HP per CI and backed it up on the track.Was a few year ago.Warp heads.Tom

Tom,
► 428 * 2.64 = 1129.92

I don't know what the max HP the Picketts made was. I do know that many years ago you sent me 2 dyno sheets and max HP on one of those was 1019.1 @ 9400 RPM which is 2.38

Let me also add since it was talked about in a different thread. That was at a 600 RPM / second acceleration rate.

Stan

[slowbird]

Originally Posted by Dragncar

How much better is that vs a real Pontiac head ? RAIV style or RAV
Canted valve Ford head on a Pontiac, meh.

No ra4 or ra5 has come remotely close that I'm aware of. Unless you can't Langer but his valves aren't straight any more either

[Stan Weiss]

Originally Posted by slowbird

No ra4 or ra5 has come remotely close that I'm aware of. Unless you can't Langer but his valves aren't straight any more either

Does anyone think that if Pontiac was in business today they would not have gone in that direction a number of years ago.

Stan

[tom s]

Thanks Stan,that might have been it.Was a long time ago.I know the wagon was turning BIG RPMs through the lights.Tom

[Gary H]

Originally Posted by tom s

Thanks Stan,that might have been it.Was a long time ago.I know the wagon was turning BIG RPMs through the lights.Tom

Do you know if Pickett's engine was a short deck block? I seem to remember it was. Either way, that that's an impressive number.

[tom s]

The engine was all alu short deck,large bore short stroke.It was a beast.I think they told me they were going through the trap at 10K.Tom

[Stan Weiss]

Originally Posted by tom s

The engine was all alu short deck,large bore short stroke.It was a beast.I think they told me they were going through the trap at 10K.Tom

Tom,
I am guessing I got this from you. Bore = 4.35" Stroke = 3.6" Rod = 6.2"

Graph of HP from 2 dyno pulls

Stan

[Half-Inch Stud]

Stan, can you provide the TQ Plot. I read into TQ vs RPM alot better. Reveals cam activity vs "optimal" activity.

[John Langer]

I’m 2.27 per cube but I’ll line up against any other na Pontiac engine on small tires and drag their a$$.

[Stan Weiss]

Originally Posted by John Langer

I’m 2.27 per cube but I’ll line up against any other na Pontiac engine on small tires and drag their a$$.

John,
A few years ago you posted. 870 tq @ 7000 and 1290 hp @ 8300 Are you over 1300 hp now?

Stan

[Stan Weiss]

Originally Posted by Half-Inch Stud

Stan, can you provide the TQ Plot. I read into TQ vs RPM alot better. Reveals cam activity vs "optimal" activity.

Mark,
Sure not a problem.

Stan

[John Langer]

1307 with race oil at 8500 and 904 at 7000. Averages over 1290 in the power band with a single 4.

[Stan Weiss]

Originally Posted by John Langer

1307 with race oil at 8500 and 904 at 7000. Averages over 1290 in the power band with a single 4.

John,
You really kicked the torque curve in the arse. That is a 45 HP gain @ 7000 very nice.

Stan

[Dragncar]

Originally Posted by slowbird

No ra4 or ra5 has come remotely close that I'm aware of. Unless you can't Langer but his valves aren't straight any more either

I get it.
Just wondering what is the best HP per ci of a "normal" Pontiac engine ?
I have not heard of any Warp-Cv engine making more power than Mikes engine, let along Langer.
All the R&D that guy has done on his own dime he should get free AP stuff for life.
I remember all those names from years ago that you thought were die hard Pontiac guys, only to end up with a Rat under the hood.
Laid over valve or not, still a Pontiac. Took a Pontiac head and modified it.
Not a Ford head and make it bolt on. There is a difference.

[Dragncar]

Originally Posted by Stan Weiss

Does anyone think that if Pontiac was in business today they would not have gone in that direction a number of years ago.

Stan

I think if they were left to do what they wanted to the engine might have looked like that 1970 427 SOHC Hemi that they made some sort of a effort at.
Running engine or not, some say it was only a mock up.
They would have changed things if just allowed to do it. Forward thinking.