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Old 02-14-2013, 10:16 PM
Lous69 Lous69 is offline
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Quote:
Originally Posted by mikels View Post
Just add step 5.5 - wire AC pressure sensor to ECM (which will also be on wiring mech for ZR1 Corvette) and you've got it.

Be sure to check origional crate engine harness - they run Fan 1 and Fan 2 output to fan relay - you need Fan 1 to go to PWM control module - and have fan power leads NOT running through relay - just a fuse.

Corvette fan (400 watt) pulls ~32 amps peak, so size fuse, wiring appropriately.

SRX fan (850 watt) we've used on Stielow's latest cars pulls ~65 amps peak.

Dave
Thank you very much for your advice Dave.

I'm curious if you would know this:

Does the software subroutine to drive a cooling fan PWM output signal already exist in the E67 ECM that came with my LSA crate motor such that it just needs to be turned on after we add the wires mentioned above or will we need to first install a program or "operating system" from a ZR1 application then modify that program with a tune for my LSA motor?

I'm wondering if the later approach would also require turning off a lot of other subroutines that the ZR1 application program or "operating system" will be looking for.

Thanks again for sharing your knowledge with the rest of us.
Lou
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