Boost change with stroker?
Boost change with stroker? Last week took my car out of storage and the crank pulley had come loose and was walking on my crank shaft 
. So now the motor has to come out and i will be putting in forged crank stroker kit probely a 3.900" stroke kit.Before this situation happened i was running 8.5 lbs of boost. With me stroking the motor will this change my boost levels any? Also how much more boost could i add to the stock block and still be safe with a new dyno tune.
Please any input would be greatly appreciated.
BTW , the new crank will be double keyed and the pistons will most likely be dished
. So now the motor has to come out and i will be putting in forged crank stroker kit probely a 3.900" stroke kit.Before this situation happened i was running 8.5 lbs of boost. With me stroking the motor will this change my boost levels any? Also how much more boost could i add to the stock block and still be safe with a new dyno tune.Please any input would be greatly appreciated.
BTW , the new crank will be double keyed and the pistons will most likely be dished
Last edited by Moz; Apr 17, 2005 at 09:34 AM.
Since your not changeing the heads and exhaust or anything but the bottom end I would say you aren't gonna loose much if any. I'd say a half pound depending on how low compression you go. also the stock block can hadle quite a bit of power with the right internals so boost away! 16+ pounds 
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From: Cincinnati, Ohio
You'll probably loose a couple lbs. The only reference I have is that with a g-trim Vortech and the 2.75 pulley on a 418 I could only muster 5 lbs. (I think some have made 9+ lbs. with that combo on a 346). I had this combo on for a short while until I switched to the T-trim and made 12 lbs.
