Quickie update, a 6.0l "built" M70 has just come available and I was able to get it at a discount from what it would cost to build from scratch. So this will be the 3rd M7X I've bought now..... Why is it that any engine project seems to take at least two motors to complete?
This motor already has a stroker CSi crankshaft, balanced, lightened and shotpeened OEM rods, and of course steel liners, high compression forgies, heavily ported heads and Schrick cams. It made 430 flywheel HP on the builder's dyno back in '95.
We'll use the short block "as is", change the valve train out to the M73's roller setup, put in some higher lift roller cams, and the ITB's, dry sump it, and will be looking to break 500 at the flywheel. With the upgraded valve train, it should be good for a 7500 redline, however we'll keep it at a conservative 7000, with the ECU's revlimiter set to 7200.
The EMS is still a question mark - the builder knows, likes, and sells Electromotive, but it would take twin Tec3's to do this motor in full sequential. Too, from where I stand, the Electromotive is one of the oldest EMS's on the market - its fundamentals are still solid, but the market has left it behind.
AFAIK, the only "single box" EMS that can do the V12 in fully sequential mode, and is still somewhat affordable for nonprofessional hotrodders, is the MoTeC M800, and even it requires ignition expander modules to get a full 12 injector and 12 ignition outputs, so it's not a "true" single box solution, even though it's a single EMS, and would only require (1) crank & (1) cam trigger. If anyone has used one of MoTeC's boxes with the ignition expanders, I'd like to hear from you about how well it worked?
