Switch to TPI?
Thread Starter
Racer
Joined: Nov 2001
Posts: 252
Likes: 3
From: Houston TX
St. Jude Donor '12
Switch to TPI?
I have a 1979 corvette. Does anybody have any insite about switching to a TPI setup. Is it worth it. Right now I have storked 385, with a RPM airgap intake, and Demon850 carb. I had a scoop on it with the cut out in the hood, but I sold it and went back to the stock hood. I cant seem to find any cleaner that gets enough air to fit under the hood. Will a TPI setup clear the stock hood? Is there any HP gain or loss? Anybody who has any comments about this feel free to post them. Even if you have information I havent ask about. Any thing about TPI in a C3. Thanks! :flag
Team Owner
Joined: Feb 1999
Posts: 34,453
Likes: 665
From: Republic of Texas
Re: Switch to TPI? (Neil350)
Personally, I wouldn't go w/ the TPI. Tuned Port Induction was designed for the 305ci Camaro in the early 80's. GM being being rushed didn't have time to design a new intake for the 350ci so they used the TPI. It is a great FI setup but the runners are so long it will run out of breath at 5,000rpms. The long runners provide gobs of torque but also the runners greatly reduces HP levels.
If you are wanting a cruiser and performance isn't #1 on you list by all means go for it. Then again if you are looking for peak performance I think you'll be disappointed. I built a 383 for my roommates's '86 C4 coupe. He ran out of money and went back with the TPI setup to atleast driver the car. It ran great up to 5K where it fell on it's face. He saved a little money and purchased a Lingenfelter Super Ram and 58mm TB, and it made a world of difference, he's now shifting at 6,200rpms.
If you are wanting a cruiser and performance isn't #1 on you list by all means go for it. Then again if you are looking for peak performance I think you'll be disappointed. I built a 383 for my roommates's '86 C4 coupe. He ran out of money and went back with the TPI setup to atleast driver the car. It ran great up to 5K where it fell on it's face. He saved a little money and purchased a Lingenfelter Super Ram and 58mm TB, and it made a world of difference, he's now shifting at 6,200rpms.
Burning Brakes
Joined: Sep 2002
Posts: 1,179
Likes: 3
From: SF East Bay CA
Re: Switch to TPI? (Neil350)
Check out Ken at FIRST INJECTIONS. Good guy to deal with Large tube runners and also a 70mm THrottle body. It is a nice set-up. Prefferable over stock GM.. I amin the process of installing this. Custom for my car (1979) Ken will alsdo work with you to ge thte right system.... Mention my name as a referral when you talk to him so he knows what you are looking for. (Tim)
http://www.firstinjections.com/products.htm
NOTE: I don't have pics yet of mine. Will post when installation is complete
http://www.firstinjections.com/products.htm
NOTE: I don't have pics yet of mine. Will post when installation is complete
