help deciding what pcm and tcm to run for project (24x, 4l80e) 0411/TAC or E40/T42!

[darkostoj]

Well I decided to register...I found I've been here for the past few hours doing research.

I am in the process of selecting which computer setup for a twin turbo project. Thought it may be wise to look for some input.

Details:

6.0L LQ4
24x reluctor wheel
ls2 throttle body
4l80e transmission

I have both a e40/t42 and 0411/TAC with corresponding harnesses so I can use either.

I like the e40 and t42 because they are more compact, and i can use the 90mm ls2 throttle body.

I like the 0411 because I can plumb in a flex fuel sensor (big plus!) and they seem to be easier to work with....its also the original computer from the engine/trans (03 Silverado 2500 6.0l/4l80e), but I have to run the 75mm truck throttle body.

thoughts?

thanks!

[GMPX]

Stick with the 0411 PCM for sure.
I don't think there was ever an E40/T42 with 4L80 combo from GM, so there's your first problem.

[darkostoj]

Stick with the 0411 PCM for sure.
I don't think there was ever an E40/T42 with 4L80 combo from GM, so there's your first problem.

i did download a file from somewhere else. It was a 07 sierra with a e40 pcm t42 tcm and 4l80 transmission

http://forum.efilive.com/showthread.php?12568-Looking-for-a-stock-T42-4L80E-cal

Out of curiosity what are the reasons for sticking with the 0411 pcm?

[ScarabEpic22]

E40/T42 with a 4L80E wasnt ever a factory GM combo, have to run a 60E T42 OS and swap the pins.

Id go with the 0411 for ease, but up to you.

[GMPX]

What Erik said, go for the 0411 for ease, it's a proven thing, less complexity for conversions and lots of different factory engine/trans combos were used on it. In fact, GM should still be using it :laugh:

[Highlander]

I wished it spit data at 40FPS

[SkinnyPedal]

Run a X-Link with the 90 mm TB. We run one on our 4500 Ultra 4 Car with a LS1B PCM. It has worked great so far.

http://www.torquerush.com/

[Highlander]

I haven't had an issue where the throttle body doesn't open completely....