Hey all, I am swapping over to Vortec heads and the SDPC TPI manifold on my 92. I don't want to have to plumb into my SLP headers for the EGR provision to function. If I just ditch the EGR valve (under plenum) and make a block off plate for this and the "provision" that SDPC has encorporated, will my computer have a fit? I don't care about the SES light just "being on" b/c I will EVENTUALLY get into prom burning and get rid of that. But, will the car run like crap b/c of the computer having a spaz attack?

Also, I have a COmp Xtreme energy cam 218/224 duration @ approx .500" Comp says its designed for TPI engines but I am curious if Speed Deensity cars can handle it without again, the computer throwing a fit. Any takers?

 

S.E.S light will be on....


The ecm wont go into limp home or anything.. but you should deffinatly be burning a prom for the engine. Your timing table was made for a stock engine with recirculating exhaust, your engine isn't stock and your combustion chambers will be clean air only so your timing table should be adjusted accordingly.

You may see detonation.