aftermarket tpi rpms , out of air when ?
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Junior Member
Joined: Feb 2003
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From: Tennesse
aftermarket tpi rpms , out of air when ?
hi i was wondering a when a tpi with accel runners ,
lowwer intake , matched plenum . 58mm throttle would run out of air , what rpm range would be good with a car that has a stick ?
thanks chad
lowwer intake , matched plenum . 58mm throttle would run out of air , what rpm range would be good with a car that has a stick ?
thanks chad
Supreme Member
Joined: Jul 1999
Posts: 2,767
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From: Vereinigten Staaten
Car: Take
Engine: Your
Transmission: Pick
I don't know what the MAX is, but I know that my '87 which has Accell base, AS&M Runners, ported plenum and a Holley 52mm Throttle Body and I can pull up to 5500 RPM. I have never taken it past 5500 (too scared). When I dynoed, my peak of 349.6 TQ was at 4100, but at 5,000 RPM, I was at 275 ft/lbs at the rear wheels. I'm loosing 75 ft/lbs of TQ from 4100 to 5000, but I can tell you, driving it up to and past 5K, it doesn't feel like I'm loosing it. It revs freely and pulls respectivly.
Senior Member
Joined: Jul 1999
Posts: 784
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From: Sacramento, CA
Car: 89 Iroc
Engine: 383
Transmission: 700R4
Axle/Gears: 3.45
Originally posted by GMTech
I don't know what the MAX is, but I know that my '87 which has Accell base, AS&M Runners, ported plenum and a Holley 52mm Throttle Body and I can pull up to 5500 RPM. I have never taken it past 5500 (too scared). When I dynoed, my peak of 349.6 TQ was at 4100, but at 5,000 RPM, I was at 275 ft/lbs at the rear wheels. I'm loosing 75 ft/lbs of TQ from 4100 to 5000, but I can tell you, driving it up to and past 5K, it doesn't feel like I'm loosing it. It revs freely and pulls respectivly.
I don't know what the MAX is, but I know that my '87 which has Accell base, AS&M Runners, ported plenum and a Holley 52mm Throttle Body and I can pull up to 5500 RPM. I have never taken it past 5500 (too scared). When I dynoed, my peak of 349.6 TQ was at 4100, but at 5,000 RPM, I was at 275 ft/lbs at the rear wheels. I'm loosing 75 ft/lbs of TQ from 4100 to 5000, but I can tell you, driving it up to and past 5K, it doesn't feel like I'm loosing it. It revs freely and pulls respectivly.
Supreme Member
Joined: Dec 2000
Posts: 3,813
Likes: 2
From: California
I've been claiming at least an additional 500 rpms over stock with siamesed runners and a matching base and plenum. Thats about 5300 compared to stock, so I'll concur with GMTech. AS&M runners are siamesed deeper than mine, though, which could account for a couple hundred more rpms.
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