C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Dynojet "TPI" Dynograph! My 2 pulls!

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Old Jul 23, 2006 | 09:37 PM
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Default Dynojet "TPI" Dynograph! My 2 pulls!

Vic'89 is going to scan my numbers on. My profile has all my mods listed. Keep in mind my motor was at around 205 for these pulls. Forgot to take out K&N for the dyno pulls as well. It is what it is, but I do think I could of hit 245-250rwhp/330rwtq with the motor in the 165-175 range. I was happy none the less.

Also the humidity factor wasnt working properly. It was humid as hell! Now time to get all the mods together! Certainly looks like your typical TPI curve, but if you notice it didnt quite tail off as fast as some do with stock exhaust manifolds. From 4000-4800rpms the HP curve is somewhat flat. Its the torque curve that takes a **** kicking!

Looks like that is around 280-285hp, and 380-390tq at the crank. An improvement over the stock numbers.

Last edited by 88BlackZ-51; Jul 24, 2006 at 07:44 AM.
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Old Jul 23, 2006 | 10:12 PM
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Here is the dyno sheet:


Vic
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Old Jul 24, 2006 | 12:21 AM
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Rick, by any chance did you get those .drf files?

Granted it was humid, I bet in that humidity everybody lost some powa.
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Old Jul 24, 2006 | 07:31 AM
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Thanks Vic!
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Old Jul 24, 2006 | 11:54 AM
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Nice results.....You gotta love all that low end torque

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Old Jul 24, 2006 | 12:19 PM
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Originally Posted by LT4BUD
Nice results.....You gotta love all that low end torque


thanks. actually the tq should of been higher! oh well, car was hot, and it was humid! a good baseline however.
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Old Jul 24, 2006 | 10:05 PM
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Originally Posted by 88BlackZ-51
thanks. actually the tq should of been higher! oh well, car was hot, and it was humid! a good baseline however.
Rick, I think your numbers are very good. Just to compare to my bolton setup, I had 271 RWHP and 345 LBS of torque.

Vic
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Old Jul 24, 2006 | 10:08 PM
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Not bad numbers!!!
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Old Jul 25, 2006 | 07:03 AM
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Originally Posted by Great White North
Not bad numbers!!!

Thanks! One thing that I find interesting is for someone who is looking for a really fun torque monster for the street, copy my mods, and then modify the intake. The stock TPI is killing my rwhp #'s. Buy a used Accel base, then port the plenuem, and find a used set of runners. I would suggest only TPIS/AS&M runners, and then a set of pulleys, and possible some 1.6 roller rockers. With that intake mod, and a set of pulleys/rockers, that would yield another 30rwhp/35rwtq give or take a few. Bringing my total up to 270rwhp/361rwtq which is around 317/424 at the crank. I would think of doing these mods if I had an auto. One would think with mods like these, and a stall, and a tire. 12's shouldnt be a problem.

Last edited by 88BlackZ-51; Jul 25, 2006 at 07:10 AM.
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Old Jul 27, 2006 | 09:37 AM
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ttt! for the tpi guys.
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Old Jul 27, 2006 | 12:57 PM
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Good numbers, Rick. With the weather and heat like it was, I think you did pretty well.
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Old Aug 4, 2006 | 08:20 AM
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Originally Posted by corvette_bob
Good numbers, Rick. With the weather and heat like it was, I think you did pretty well.


thanks bob! and that's without true duals, and the alum march crank pulley!
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Old Aug 4, 2006 | 08:27 AM
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Old Aug 4, 2006 | 11:27 AM
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Not bad at all! I know at times we wish we could remember everything but we forget! So maybe on the next pull it'll have all the stops pulled out! So you'll get youir true numbers but none the less nice pulls!

Thanks,Matt
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Old Aug 4, 2006 | 12:08 PM
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Originally Posted by madmatt9471
Not bad at all! I know at times we wish we could remember everything but we forget! So maybe on the next pull it'll have all the stops pulled out! So you'll get youir true numbers but none the less nice pulls!

Thanks,Matt

Thanks. Those were my true numbers for the mods on the car however!
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