P/V Clearance ? with this head/cam combo
07-22-2004, 08:31 PM
#1
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P/V Clearance ? with this head/cam combo Currently have a 02 Formula with just lid and catback, and am saving for heads/cam.
Have definitely decided on 205 AFR heads (want stock compression so I guess the 66cc) and use stock type gasket. Anyway now need to choose a cam, and was thinking having one custom made to these specs: 220-220 .580-.580 +4 advance xe-r lobes. Would I have P/V clearance issues or be out of the safe zone so to speak which is what (0.04?), fwiw don't plan on changing the stock shift points. Trying to learn here. Thanks in advance!
Have definitely decided on 205 AFR heads (want stock compression so I guess the 66cc) and use stock type gasket. Anyway now need to choose a cam, and was thinking having one custom made to these specs: 220-220 .580-.580 +4 advance xe-r lobes. Would I have P/V clearance issues or be out of the safe zone so to speak which is what (0.04?), fwiw don't plan on changing the stock shift points. Trying to learn here. Thanks in advance!
07-23-2004, 01:13 AM
#3
TECH Senior Member
PM Tony Mamo for any qusetions on AFR. Who knows better than the person who designed them?
JFYI Initially I wanted to go with a 216/220 Comp (Have it laying around for awhile) and Tony was wondering why I wouldn't use a more aggressive cam with my 62cc AFR (Stil waiting for delivery), like a 224/.581 or so.
I followed his advice and got a MTI Stealth 2 224/221, .576/.581 116+4lsa but decided to go with unmilled heads so not to have any p-rod 7.40 & (non adjustable) rocker HS preload problem.
JFYI Initially I wanted to go with a 216/220 Comp (Have it laying around for awhile) and Tony was wondering why I wouldn't use a more aggressive cam with my 62cc AFR (Stil waiting for delivery), like a 224/.581 or so.
I followed his advice and got a MTI Stealth 2 224/221, .576/.581 116+4lsa but decided to go with unmilled heads so not to have any p-rod 7.40 & (non adjustable) rocker HS preload problem.