quick tpi manifold turbo question
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Car: 1988 firebird trans am GTA
Engine: 5.7L w/hsr
Transmission: 700r4
Axle/Gears: posi 3.23
quick tpi manifold turbo question
Hi all,
I am doing a single turbo on a tpi engine.. i'm wondering if i would see any benifit going with a less complicated setup like a tpis mini-ram intake or stealth ram. there are 6 gaskets between the runners, plenum and intake on a tpi setup, none on a mini ram and two on a stealth ram.
my l98 is basically stock, so it would be stock heads and cam to start out. I'm only going to run between 6-8lbs of boost to start, but i'm kind of questioning how much trouble i'm going to run into trying to make sure my tpi setup will maintain a good seal under boost. stealth is 550 new, i can score a used miniram setup for about 650 and i already have an edelbrock runner/intake combo that i have done some porting on. which would best fit my application?
thanks all
I am doing a single turbo on a tpi engine.. i'm wondering if i would see any benifit going with a less complicated setup like a tpis mini-ram intake or stealth ram. there are 6 gaskets between the runners, plenum and intake on a tpi setup, none on a mini ram and two on a stealth ram.
my l98 is basically stock, so it would be stock heads and cam to start out. I'm only going to run between 6-8lbs of boost to start, but i'm kind of questioning how much trouble i'm going to run into trying to make sure my tpi setup will maintain a good seal under boost. stealth is 550 new, i can score a used miniram setup for about 650 and i already have an edelbrock runner/intake combo that i have done some porting on. which would best fit my application?
thanks all
Supreme Member

Joined: Jul 1999
Posts: 1,773
Likes: 7
From: Panama City FL
Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: quick tpi manifold turbo question
You won't see any problems with leaks. There are stock intake tpi turbo setups out there running 9's. A friend of mine has a 20 psi turbo tpi setup that works fantastic.
The only downside that comes to mind is the effort involved in getting to the injectors, which I get to do this week on mine.
The only downside that comes to mind is the effort involved in getting to the injectors, which I get to do this week on mine.
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Joined: Dec 2006
Posts: 5
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From: McMechen, WV
Car: 1981 Chevy Malibu
Engine: 355 tpi
Transmission: t400
Axle/Gears: 12 bolt 3.08
Re: quick tpi manifold turbo question
Leaks are no problem. I've run 18lbs through mine without any issues. 20 inches of idle vacuum is, I believe like 10lbs of out sideair trying top get in. TPI & turbos rock! Mark
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