Posted over at HP but pretty quite there so thought I would check here.

I've switched my car from procharged back to NA. I was running a 2 bar COS SD tune and going back to running a MAF.

Car is a 2006 corvette. My mods are:

E38
LS2 stock short block
GM LS3 ported heads
GM LS3 ported intake w/ stock TB. 280158051 injectors which I believe are 42 @ 58 psi (bought intake, rail and injectors off a 2010)
1 7/8 long tube headers w/ no cats
CAI w/ ls3/7 MAF
Cam specs: ADV DUR INT 279 EXH 297 DUR @ .050 INT 227 EXH 243 LOBE 114

Going to need a base tune so should I just load a stock tune from a 06 ls2 vette (I no longer have mine) or load a tune off a stock ls3 vette or other car (would it need to be a E38?) or go I different route? Just need a base tune to get it started and running so I can tune from there. If anyone has a tune I can use that would be great, willing to work something out. Thanks!

 

With your aggressive cam I don't think any stock tune will come close to running or even holding an idle.
Someone correct/confirm but I do think the LS3/LS7 injectors are 42psi. Full tuning tables should be readily available on the HPT site.

You could start with a stock LS3 tune (matching your injectors) and then follow these instructions from the HPT site for modifying a few tables so that it will start and idle with a moderately aggressive cam:

http://www.hptuners.com/forum/showth...surging%20idle

 

thanks. I'll do some research on the injectors.

 

was doing some searching at HP tuners and found this thread. Seems like if I start with a zo6 tune I can work from there. Any thoughts?

http://www.hptuners.com/forum/showth...tor-Table-Help

 

Sounds reasonable, but still make the changes in the HPT thread I listed before.
Your cam has much more overlap than a stock Z06 cam.

 

yes thank you. I know I will have lots of changes to still make but I think this can get me started and ay least have the right injector data.

I think an 08 has the E40 PCM so should I load a 2006 zo6 instead or won't matter?