89-5.0

I asked a while ago about custom LS1 programming. Grumpy told me that Lingenfelter must have some deal with GM to be able to tune the Corvettes for the twin trubo application, because most places can't do that yet. Fast chips is doing LS1 programming, and Hyper Tech has their power programemr (hardly custom programming though). Anybody know if TunerCat or somebody has come out with a product so we can mess with the LS1 vitals?

Jason

Grumpy

Tunercat said later this spring.

89-5.0

Thanks Grumpy, you've answered both my questions while one of them has been sitting on the DFI board for days now.

Jason

Hunter Motorsports

So: who makes cables and interface software to re-program the PCM via the ALDL??? and (GULP) How much? - dare I ask...

doc

If you go to www.carputing.com, you will see a program thru which you can modify the fuel management system in the LS1 PCMs. This company also has an editor for LT1 cars.

I received my LS1_Edit program last week and have been very busy modifying the MAF tables in order to bring my long term fuel trims (BLMs for us OBDI guys) down to zero or a slight negative number.

The LS1 stuff comes with software and a cable to connect your laptop to the diagnostic port. You copy to a file the contains of the PCM, then with the editor portion of the software, you can edit a variety of tables, then you flash your new program back onto the PCM.

Great stuff, I'm having a great time tuning my LS1 Camaro SS!!!

Grumpy

If you were to visit the DIY-EFI archives you wouldn't be so in love with the LT1_edit group.
They were also buying a couple LS1 PCMs the last I heard cause they were locked up after trying the LS1 stuff.
IMO, for what he charges, you should get a date with some model.
Locking you into one pcm is a nice marketing tool.
I'll wait for the Tunercat, Thank You.

89-5.0

Thanks for the info about carputing, however that price is outrageous.

Jason

branz28

Being a member of Ls1tech.com and ls1.com i think most people use MTI (although they use LS1 Edit now) or they go for superchips, hypertech, Ed Wright, etc. I think Morgan Motorsports (MMS) does programming with LS1 edit also. For now, that seems to be the best bet, which is having someone else do it. If you don't mind the ole' tag game that normally comes with sending pcms and testing without actually being there then it could be the way to go. Until then, as far as i can see, LS1 edit costs some 5xx bucks to do one car. While Ed Wright is close to the same price. Is this for twin turbos? single turbo?, heads/cam? Just interested. If you wanting to just get rid of torque management or raise the rev limiter, then you may wish to weight your options....TunerCat will be here soon...and probably alot cheaper than LS1 Edit, but then again, i know what its like to install a big heads/cam and not to experience all the fun and driveability.

Edit: Damn i bad for rambling...lol