2 bbl. Motorcraft & a dwell cam

CFMCNC · 11-13-2013, 02:09 AM

Be carefull with power valves in a restricted induction combo,It will pull manifold vacuum at wot and may effect power valve.The other issue with restricted combos is during overlap the high manifold vacuum will pull exhaust contamination back into combustion chamber,Valve seat and valve shape need to be designed to halt exhaust reversion contamination,also cam events are critical to control reversion.Bill C.

11-13-2013, 02:09 AM	#12
CFMCNC Junior Member Join Date: Apr 2012 Location: Somwhere in NJ Posts: 72 Likes: 4 Liked 3 Times in 3 Posts	Re: 2 bbl. Motorcraft & a dwell cam Be carefull with power valves in a restricted induction combo,It will pull manifold vacuum at wot and may effect power valve.The other issue with restricted combos is during overlap the high manifold vacuum will pull exhaust contamination back into combustion chamber,Valve seat and valve shape need to be designed to halt exhaust reversion contamination,also cam events are critical to control reversion.Bill C.

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