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

Maximum horsepower for TPI

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Old Nov 15, 2005 | 05:29 PM
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Default Maximum horsepower for TPI

What is the maximum horsepower that can be supported by the stock TPI system? I have read several threads concerning changes to minirams & big mouth manifolds. I want to keep my stock appearance, but add a little more power. Thank you for your input.
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Old Nov 15, 2005 | 05:39 PM
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About 400 is the limit, a link to Joe90's page is on my website.

Thats about as far as you can go with the original-looking intake system.
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Old Nov 15, 2005 | 09:01 PM
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Originally Posted by vader86
About 400 is the limit, a link to Joe90's page is on my website.

Thats about as far as you can go with the original-looking intake system.
Is that with or without the siamesed runners in the TPI base? Is that with factory runners, or large tubes? What cam does that HP value utilize?

Thanks,
Aaron
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Old Nov 15, 2005 | 09:19 PM
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It says on the webpage. I can't remember now.
But it is siamesed I believe with all aftermarket parts sans the plenum and a CorvetteChallenge cam.
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Old Nov 15, 2005 | 09:34 PM
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Originally Posted by AKS Racing
Is that with or without the siamesed runners in the TPI base? Is that with factory runners, or large tubes? What cam does that HP value utilize?

Thanks,
Aaron
You can read the webpage.
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Old Nov 15, 2005 | 09:36 PM
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Heres a monster long thread about TPI off the third gen site.
http://thirdgen.org/techbb2/showthre...hreadid=273727
Roy
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Old Nov 16, 2005 | 01:12 AM
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Look at my Dyno curve and mods sig.

[IMG][/IMG]

I might get easily another 3-50 Hp if i switched from Tpi to SR or Miniram with that cam and Head package i have.
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Old Nov 16, 2005 | 01:49 AM
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Originally Posted by sami85L98
Look at my Dyno curve and mods sig.

[IMG][/IMG]

I might get easily another 3-50 Hp if i switched from Tpi to SR or Miniram with that cam and Head package i have.

My guess is 50hp with either intake. With your cam and heads that intake is KILLING you. I switched from a bigmouth, Lg tubes to a Mini and that is about what I picked up with a 219 and TFS heads.
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Old Nov 16, 2005 | 02:24 AM
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Hippy i know that TPI is killing me but i hate to install SR as its too difficult to install and a real pain what i have learned.
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Old Nov 16, 2005 | 03:09 AM
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Originally Posted by sami85L98
Hippy i know that TPI is killing me but i hate to install SR as its too difficult to install and a real pain what i have learned.

That along with Accel not having SRs for sale this summer is what led me to a Mini. I am very happy with it so far. Next year with a new gear I will be even more happy with it.
It's a great intake to work with and 350 rwtq isn't exactly like it lost much tq compared to my 354tq with my bigmouth setup. Thing pulls great to 6200.
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Old Nov 16, 2005 | 06:52 AM
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Originally Posted by Fastmax32168
Heres a monster long thread about TPI off the third gen site.
http://thirdgen.org/techbb2/showthre...hreadid=273727
Roy
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