Fierofly

iTrader: (1)

I've installed a GM LS3 480hp with a GM performance stand alone ECU in a 2003 Porsche C4S 911, I need to do some tuning and change idle rpm and fan temp on/off. I've talked to Diablo, they make nothing to support the GM Performance stuff, I guess cause you don't have a vin number to lock it. Is this going to be a problem with ALL the Tuners? Wish I knew this ahead of time. Any ideas on what I need to get to be able to tune this beast?

LSX Power Tuning

iTrader: (4)

I have tuned several of them with efi live.

BLKHAWK1

iTrader: (30)

HP tuners supports them as well

Fierofly

iTrader: (1)

I've used DynoJet's Powervision tuner on my Harley, It has an auto tune function that monitors the way you ride and makes suggested improvements to your tune, called AUTOTUNE function. Do any of these have something like that?

LSX Power Tuning

iTrader: (4)

No EFI Live and HP Tuners are both just tuning software, they dont do any tuning for you or anything like what you did on your bike.

joyridin'

iTrader: (1)

I was under the impression the GMPP ecu was locked and could not be altered as far as programming. Will the HPTuners allow you to crack their memory or something?

LSX Power Tuning

iTrader: (4)

All the ones I tuned in person I used efi live but I have tuned 2 through email with hpt also so I know they support it also. I heard there are some that are locked depending on package you bought but I personally have not seen one. There are a good number of GM packages out there so I know I have not came across all of them. They have changed a few minor things in them as the years went by. I have not seen one that has been bought in the last few months so I don't know if they made in changes that recently or not.

Fierofly

iTrader: (1)

I'd like to at least change my idle and fan on/off temp.