What would be awesome would be to have a plug and play cheap kit that uses a GM PCM that's supported by hptuners. Something simple, that'll fire just fuel, or spark if you wanted.
Since I already have hptuners for my gto, it would be nice to be able to use that since I spent $650 on the software already.
Maybe I'll hobble together something using 96-00 vortec truck PCM and harness, since iirc that PCM is supported by hpt?
I haven't checked lately but the last time I made an inquiry to HP Tuners and EFI Live, they did not support any GM PCM (E38 and E67 variety) without a valid VIN. And, to use those you will need the correct 4X Cam sync signal and 58X (60 minus 2 that is) crank signal. I suppose you could use a 1X Cam/24X crank/E40 ECM which would be less $$$. ATI quoted me about $750.00
for a super-damper with an integral 58X reluctor. EFI connection has the correct 4X Cam Sync distributor "plug" but they only support the later model Gen VI EFI BBC's at this time. I really wanted to go coil-per-plug and a GM E38 ECM with a base Corvette Z06 tune for starters and use HPT or EFI Live as my tuning software.
Fuel systems are another story. I have a Rick's Tanks stainless tank set up for a 2009-2011 Cadillac CTSV Fuel pump module (capable of 1000+HP NA, 900HP boosted) and a P
odulated feedback control module which maintains 58 PSI regardless of the engine's demands up to the limits of the pump module - no regulators or return lines, just like the late model OEM's. I'm into it for about $2000.00
including the -8 stainless hard fuel line rear to front with fittings. I wanted something different
but sometimes I have to wonder at what cost!
So, at this point in time I don't believe there is a cheap way out for a late model GM ECM. Maybe FAST XFI, Megasquirt, Edelbrock, Holley, Accel etc. aren't priced too badly after all but you have to be willing to pay the price and learn to tune. Driveability and dependability are a plus, cost being the BIG negative.
My two cednts worth