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

383 owners....please help!

Thread Tools
 
Search this Thread
 
Old 10-06-2003 | 01:15 PM
  #1  
speed88's Avatar
Thread Starter
Senior Member
 
Joined: Sep 2000
Posts: 785
Likes: 0
From: St. John's, NL, Canada
Car: 1988 Trans Am GTA
Engine: 383
Transmission: 700R4
383 owners....please help!

I'm going with a 383 and was wondering what stroker kits you guys are using and what 1/4 mile times you are getting. Also, did you have to get your prom burned to accept the change from the 350 to the 383. I have a chip burned to accept my cam and heads and TPIS intake. Would I have to get that reburned for the 383? Any help, comments, or suggestions would be greatly appreciated. Thanks.
Old 10-06-2003 | 05:29 PM
  #2  
92 zzz28's Avatar
Supreme Member
 
Joined: Nov 2001
Posts: 1,886
Likes: 0
From: Jacksonville, NC
Car: Guess
Engine: Crazy 8
Transmission: So close to being a manual I can taste it
I bought my 383 kit through my machinist. We sat down and put together some good parts from good manufacturers. Then we got a great price from a local racing parts warehouse. 383 stroker kits are so popular you can get one just about anywhere for a good price. Thats why I had to be different and went with 385!

I switched to the stroker from a 305 and eliminated EGR and all that stuff. So a new chip was definately part of my package. I don't know if you would NEED a new one, but it is sure going to help.

As of yet, I have no track times, but I had a few good kills on the street...
Old 10-07-2003 | 09:43 AM
  #3  
Neil's Avatar
Senior Member
 
Joined: Jul 1999
Posts: 888
Likes: 0
From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
Regarding your chip, you can adjust cylinder volume under the constant paramaters using tunercat software, which would take into account your extra cubic inches. That should pretty much do it, at least for initial start up, then you can begin the task of tuning........
But, I do remember when I first built my 383, I used the stock chip for initial start up. However, performance wasn't there.......then I decided to start burning my own proms.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LT1Formula
Engine/Drivetrain/Suspension Parts for Sale
7
10-08-2015 08:34 PM
JSDaddy189
Organized Drag Racing and Autocross
4
09-26-2015 03:50 PM



Quick Reply: 383 owners....please help!



All times are GMT -5. The time now is 12:27 AM.