'86 tpi+383?
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Joined: Apr 2002
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From: Deer Park, N.Y.
Car: 1983 z-28/SFC/bilsteins/adj.arms
Engine: 355sbc/Demon650dp/hedmanheaders/
Transmission: t-5, alum DS
Axle/Gears: 3.42 torsen posi, baer discs
'86 tpi+383?
do you guys think a tpi taken from a '86 camaro can supply a 383 with enough air/fuel? with the stock ecm and perhaps upgraded injectors and runners...could 400+horses be possible?
Last edited by wdigitog; Apr 11, 2004 at 12:04 PM.
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
No
The practical limit for an anywhere near stock TPI is around 300-325 HP on any size motor. It starts getting very, very hard to get much beyond that, without replacing major components. The larger the motor, the lower the RPM at which it reaches that HP (flow). The intake base is a restriction; and the length of the runners, that is to say the very design of TPI, is hostile to high HP.
The practical limit for an anywhere near stock TPI is around 300-325 HP on any size motor. It starts getting very, very hard to get much beyond that, without replacing major components. The larger the motor, the lower the RPM at which it reaches that HP (flow). The intake base is a restriction; and the length of the runners, that is to say the very design of TPI, is hostile to high HP.
Thread Starter
Senior Member
Joined: Apr 2002
Posts: 514
Likes: 0
From: Deer Park, N.Y.
Car: 1983 z-28/SFC/bilsteins/adj.arms
Engine: 355sbc/Demon650dp/hedmanheaders/
Transmission: t-5, alum DS
Axle/Gears: 3.42 torsen posi, baer discs
even with higher rated injectors? how about aftrer/market runners?
Thread Starter
Senior Member
Joined: Apr 2002
Posts: 514
Likes: 0
From: Deer Park, N.Y.
Car: 1983 z-28/SFC/bilsteins/adj.arms
Engine: 355sbc/Demon650dp/hedmanheaders/
Transmission: t-5, alum DS
Axle/Gears: 3.42 torsen posi, baer discs
well, what induction do you recommend for the 383? what's ideal? what's ideal and legal ( emissions police !)?
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Joined: Jul 1999
Posts: 18,457
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
The only truly emissions-legal repacement is the SuperRam. That has to be a bout the hardest thing ever invented to work on though. But, depending on how not-quite-legal you can get away with in your locale, the SteathRam and the MiniRam might be better choices. Or possibly even a converted LT1 intake. The MiniRam will probably make the most power.