MC engine & CIS-e III?

David duandcc_forums at cox.net
Mon Oct 3 14:46:32 EDT 2005


A local shop has a MC engine (I think it's a MC2 but could be a MC1) that was removed from a wreck about 2 years ago. A customer was going to swap it into his 4000q but never got around to it. They are willing to swap it into my 1987 CGT 2.3 very cheaply, but they don't want to touch the wiring. So, any thoughts on running a MC engine on CIS-e III? I know it won't support a whole lot of boost, but I am hopeful I could run 6-8PSI. The CIS-e III system is a single knock sensor system. It's fairly well known that CIS tends to get a little lean at high RPMs. I have added a full throttle fuel enrichment mod already. Basically I added another full throttle switch that turns on the Cold Start Valve to dump in a little more fuel. 

So...thoughts on this? Can I safely run a MC engine with CIS-e III? And thoughts on my "fuel enrichment" mod? Anyone know how the timing maps of a NG compare to a MC (thinking of a stock to stock comparison)? I know a few people have bolted a turbo onto their KX engines and run that on CIS-e, but not sure about a MC engine. I really don't need 200HP,a nd would be quite happy with 165-175...I'm actually pretty happy with the 130 that I've got now.

Dave
1987 CGT 2.3
SE VA



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