TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

How much power can I squeeze from a Stock TPI?

Thread Tools
 
Search this Thread
 
Old Jun 8, 2002 | 10:36 PM
  #1  
FIRECHICKEN's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: Jul 1999
Posts: 816
Likes: 0
From: Mechanicsburg, PA
Car: '89 Formula 350
Engine: 5.7L L98 TPI
Transmission: 700-R4 Automatic
Axle/Gears: 7.5 disc posi 3.23
How much power can I squeeze from a Stock TPI?

I am going to build a 383 and plan on using my stock looking TPI unit. What I mean is that I am going to keep it looking like a traditional TPI unit. I will upgrade to larger runners and a larger base unit, but the plenum will still be there. How much power can I wring out of this with the plenum restriction?
Reply
Old Jun 8, 2002 | 10:58 PM
  #2  
Scott 88 GTA's Avatar
Member
 
Joined: Jul 1999
Posts: 407
Likes: 0
From: Stuarts Draft, VA
Car: 88 GTA
Engine: modified L98
Transmission: 700r4
Axle/Gears: 3.27 9-bolt
The plenum is not a restriction. The power restriction will be the diameter of the runners, and the length of the runners forcing a low rpm power band. Your best choice for a base is the Edelbrock (just because it's the cheapest $, they all perform about the same) and either SLP or AS&M semi-siamesed runners.

You should be able to get 350+ rwhp pretty easily with a 383 I would think.

Good luck.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jaridjohn
History / Originality
7
Jul 8, 2024 03:49 PM
Vintageracer
Camaros for Sale
12
Jan 10, 2020 05:33 PM
Azrael91966669
DIY PROM
25
Jun 20, 2017 04:04 AM
Sanjay
Engine/Drivetrain/Suspension Parts for Sale
1
Aug 12, 2015 03:41 PM
marcusaw
DFI and ECM
4
Aug 10, 2015 08:13 AM




All times are GMT -5. The time now is 02:57 AM.