dunce79

Doing a little homework before tuning my project car, just wanted to run this by the experts.... I have a 2000 LS1 5.7 (2000 GM computer, f-body) but i'm installing an LS6 intake with 28lb injectors. Comparing stock tunes for my 2000 computer and a 2002 computer (also f-body) in a different vehicle I can see the injector flow rate, offset and short pulse adder tables are different. Can I just copy those tables from a stock 2002 tune into the tune for my 2000 computer to adjust for the difference in injectors? From what I gather 28lb injectors came out on the F bodies in 2001 so the difference I see would make sense. Any other tables need attention as far as injectors go?

Thx

2xLS1

iTrader: (25)

Just copy the tables you mentioned. It's as easy as that. If you want me to throw a little monkey wrench into it look at a tune from a 01-04 Vette that use the exact same injector and you will see slightly different values than the F-body tunes. Kind of makes you wonder just how exact that data has to be. I did the same thing on my 99 and use the 01-02 F-body values.

dlabooda

iTrader: (2)

I've noticed the same thing with the Corvette data being slightly different. Is there any explanation for this?

joecar

+1

makes you wonder why/what...?

JakeFusion

iTrader: (7)

Usually data gets better over time. For example, LS3 injectors are the same ones found in the LS7. But the data is different. I would use the newer data from GM as its part of the yearly refresh/refinement.

patSS/00

iTrader: (6)

That is interesting. Is the fuel pump/pressure also exactly the same for vette vs fbody? Is there anything else that could affect the injector flow? The differences are not totally insignificant. I switched to the 28's long ago and have been using the fbody values also.

joecar

Might possibly be due to different calibration teams, each doing their stuff differently than the others.