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LS1 Computer running a ls3?

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Old 05-11-2013, 08:35 AM
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Default LS1 Computer running a ls3?

After reading... With the 24 tooth converter, and I am looking for a drive by cable tb...

There is no real gain by running a new ECM vs the bigger LS1 computer?

Beside a little bit of space.

I have an entire 2004 GTO setup(entire harness and gauges etc) and was wondering if I should pay the money and definitely swap out to a 2010 Camaro for the computer?

Is there any serious thing I am going to be missing by not going to the Camaro?
Old 05-11-2013, 06:13 PM
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That's a lot of work for no apparent gain.

Our 2001 Holden Monaro originally came with an LS1.
The original computer is now running cammed LS3.
Old 05-11-2013, 09:24 PM
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Yeah I didn't think so, I kind of just wanted a warm fuzzy feeling.

I just wanted to confirm there wasn't some huge thing I was missing by not going to an E38 or e40 computer. I kind of read that the LS1 computer is the one to go with out of those 3 choices because of tuner experience.

I think the benefit of the LS1 is the drive by cable.

I keep seeing video's of drive by wire and the computer controls the throttle body which jacks your shifting and RPMS... meaning you are not in full control.
Old 05-12-2013, 09:00 AM
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The only thing you are missing out on is larger, higher resolution tables in the new PCM. It has larger MAF & injector tables which would be nice, but requires the fly-by-wire throttle.

I just struggled with the same choice on my LS3 swap & went w/ the 411 PCM as I did not want to fool w/ the electronic throttle. Had a bit of tuning to make the 4" MAF happy & getting the injector voltage offsets sorted out, but am still glad I went with the 411.
Old 05-12-2013, 01:01 PM
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what is the 411 pcm? Is that a specific model? Is that the 2004 GTO Ecm?
Old 05-12-2013, 08:48 PM
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It is the late LS1 computer from a F-body.



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