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Well, had a slow leak on the fitting I pressurized my cylinder with while I was doing valve stem seals, and the valve dropped into my cylinder head. Used a magnet to try and get it back in place and knicked my bowl up, probably going to go over it with some rotary tools this weekend.
That being said, I pulled the head off today - I see lots of debate on VVT heads and the consensus is it is good for undercurve power - but, if I am more concerned with higher end power, would a higher lift/duration cam in a BP4W head be better? I have the opportunity to pick up a VVT head setup for $250...
I just got a set of supertech single springs and seats, havent installed them yet, but I think they would give me the pressure I need to do lumpier cams.
Super singles wont do a damn thing. needs heavies, even for just boost and stock cams.
So you're saying don't even both messing with the VVT?
I got the springs for $100 so I figured they'd be worth a shot...
I was always under the impression that pressure differential from the intake manifold to the compression in the cylinder made it so that the intake valves wouldn't necessarily open on the wrong part of the stroke, and the exhaust valves would be held closed on a compression stroke?
They're still 56lb springs, as opposed to the dual springs at 63lbs and the heavy at 74lb - I just didn't want premature wear from the increased seat pressure on the camshaft lobes/journals
Yes vvt. To my knowledge, nobody has damaged parts from high spring pressure. Lots are using the heavy doubles. I am certain that I was blowing things open at 17 psi.
11-14-2018, 04:50 PM
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