I am not bad mouthing the factory computers. I really enjoyed tuning them on the GTO, they do have more controls than the aftermarket stuff (most of them anyway). Just add in the cost of a wideband and tuning system as that will run you $1000 or so as Scott said.

They did not have speed density for the LS2's at the time I had the twin turbo GTO or I'd likely still own the car. They do now so it's a non-issue, but at the time my tune was pegged at a pretty low amount of boost which was frustrating.

I had the 402 in the GTO briefly and it runs awesome. But couldn't tune it above 10-12 psi safely with the maf, so I bailed out of that car. I'm sure it will be a lot of fun in the Malitude.

Jody

O.k. I am putting my foot down! Time to rename that car! :mad:

Something with more attitude! :)

In fairness to Mark it retains all of his suspension and general engineering, but I (in my infinite wisdom) am changing the color, interior, engine, and wheels. :willy: Doubt anyone will recognize it as Malitude when I'm done.

Never was known for my brains! :D

Jody

HA! You're as bad as I am! except I am keeping the color, wheels and changing everything else! lol


The factory ECU is great until you get into heavily boosted or super high-end engines.

You should check prices and pick the brains of John at Speartech for more info. I am putting in a 570hp LS2 and running the 58x LS2 computer. It's fairly easy and much cheaper than that BS3 or FAST XFI stuff.

Dont forget I am at 18.5 psi and over 1000 hp with 93 OCTANE!, on the factory PCM with EFILIVE tuning software. Boy, that has great magazine article written all over it! :_paranoid

You can do alot if you put your mind to it.

He'll need HP tuners if he's using the LS2 computer; don't think EFI-Live has that yet.

Now that they (FINALLY!) got the 2 bar speed density for the LS2's it opened up the performance envelope a bunch with the factory computer.

Jody

Ya, Efilive has really taken there time on the LS2 software. I am thinking they might release the 2 or 3 bar right away though. Hopefully, cause I have some cars waiting for a little tunin! :unibrow:

The only thing I do not like about the software is the lack of on the fly tuning, that is an additional arm and a leg! With the cost you would have with a roadrunner setup, you could almost have a BS3 I think? How much are those??

What is the spec for the factory computer you are running and what wiring harness are are you using to hook it all togther?

Jody change the color, leave the wheels or paint them, what wheels are you thinking?? you can PM me so not to let it out, I show you mine,