Is it possible to copy E67 ECM Tune to E38 ECM???
Thread Starter
On The Tree
Joined: Jun 2014
Posts: 133
Likes: 3
Is it possible to copy E67 ECM Tune to E38 ECM??? I'm new to the LSx tuning world. Can a tune from an E67 ECM (GMPP LS3/525 ecm) be copied to an E38 ECM without any issues?
I'm beginning an LS3/525 crate motor swap. I'll be running a 4L70e behind it with a stall. I'm wanting to go with an aftermarket harness from psi that I know will fit cleanly in my C3. The harness PSI offers only works with an E38 ECM. I have access to a GMPP LS3/525 ECM and I'm wondering if it's just a simple copy or matching the tune between the 2 ecm's. I don't have easy access to a chassis dyno at this moment and I'd like to run the car a bit to work any bugs out before I bring in for a custom tune (about 2 hours away).
Other options are spend more for a different harness from another company that'll work or go with the GMPP harness and be done with it.
Thanks for any help/advice ya'll can provide.
Picture of my c3 for fun:
Ryan
I'm beginning an LS3/525 crate motor swap. I'll be running a 4L70e behind it with a stall. I'm wanting to go with an aftermarket harness from psi that I know will fit cleanly in my C3. The harness PSI offers only works with an E38 ECM. I have access to a GMPP LS3/525 ECM and I'm wondering if it's just a simple copy or matching the tune between the 2 ecm's. I don't have easy access to a chassis dyno at this moment and I'd like to run the car a bit to work any bugs out before I bring in for a custom tune (about 2 hours away).
Other options are spend more for a different harness from another company that'll work or go with the GMPP harness and be done with it.
Thanks for any help/advice ya'll can provide.
Picture of my c3 for fun:
Ryan
i have been playing with an e38 4.8/6l80e and it is very complicated. the e67 is even more so with the added i/o's and stuff.
you can probably copy/paste some table values, but I think a proper tune is your best bet. if you can road tune it with a wideband and some afr error % histograms, you're in business.
please keep in mind i'm a p1/p59 guy and I just saw your thread with no replies so i chimed it to get the ball rolling.
killer car BTW, c3 is my favorite...looks fast just sitting there
you can probably copy/paste some table values, but I think a proper tune is your best bet. if you can road tune it with a wideband and some afr error % histograms, you're in business.
please keep in mind i'm a p1/p59 guy and I just saw your thread with no replies so i chimed it to get the ball rolling.
killer car BTW, c3 is my favorite...looks fast just sitting there
Thread Starter
On The Tree
Joined: Jun 2014
Posts: 133
Likes: 3
Thanks for the compliment! I'll probably go the safe route with the gmpp setup so I can get the car running and enjoy it for a while. I'll just clean up the harness and replace the plastic loom with some braided split loom when i get it to ensure everything looks nice at least.
No you can't just copy the tune. Personally I would just get the PSI setup so it uses a production OS and just have somebody tune it appropriately. There are several downsides to the GMPP operating systems with the E67s and you will have more compatibility with the E38 route from PSI.
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