SpecV44

iTrader: (7)

brother's LS1 blew up in his 98 Z28 (we think its probably a bearing), but since it is his only car we had to get it up and running. Ended up getting a 5.3 for $125, so easy as it goes. Im looking for a baseline tune to get started with, instead of starting from scratch. We are using HPTuners Pro. Below are the mods. Im sure there are several tunes like the one needed running around, just hoping someone can point me in the direction. I was going to check the HPT tune repository, but IDK if I would come across any that are in fbody trim. Thanks!

5.3L
LS1 intake
Longtubes
Late model Z06 cam
SLP lid
6 speed manual

JonCR96Z

iTrader: (33)

If you could find a tune that was exactly what you had who would know if it was worth a **** or not. It would take less time to get the tune close just tuning it from scratch than it would to find a similar tune that may or may not be right.

Mike454SS

iTrader: (4)

I'd start at the HPTuners tune repository, and find the spark tables for those heads to start with...everything else though, I'd just tune using the cars original tune to start from. If you're using the cars injectors and MAF it's not going to take you too long.

SpecV44

iTrader: (7)

Cool, thanks guys. I will just do a scratch tune, shouldnt be too bad since there are only a couple mods.