Tuning a 383!!!!! NEED HELP!!!
08-27-2003, 09:13 PM
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Tuning a 383!!!!! NEED HELP!!!
Welll I have just about got the motor in, but I need to know, What is the best way to tune the motor,
check sig for parts--
I have all aftermarket parts, the ecm was originally for a tpi 305 motor. What should i do Custom chip??? dfi??? what are the solutions for tuning this motor. Whats involved???
Let me know!!
thanks
check sig for parts--
I have all aftermarket parts, the ecm was originally for a tpi 305 motor. What should i do Custom chip??? dfi??? what are the solutions for tuning this motor. Whats involved???
Let me know!!
thanks
08-28-2003, 05:12 AM
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Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
if you can ...go DFI $$$$$$$$$ if not ....check the prom tuneing board ...... and find out how to burn your own chips ....they are pretty helpfull over there
08-29-2003, 03:44 PM
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Car: 1991 Firebird
Engine: 383 stroker
Transmission: T-56
I'm wondering how you're getting 10.6:1 compression on 10cc dished pistons? Did you have the heads milled?
08-31-2003, 08:11 PM
#4
Flat top pistons in a 383 application will give you around 10.8:1, with a 10 cc dish in the piston you would have around 9.6:1, considering that the vortech head is acutally 62cc, the compression ratio would be around 9.85:1...but if he is using a steel shim head gasket with .015 compressed thickness he would be very close to 10.6:1. Your lift would be .484, hope this all helps.
Last edited by IROCFAST; 08-31-2003 at 08:13 PM.
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