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Coyote Series Engines
Mustang cams - piston to valve clearance
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<blockquote data-quote="twistedneck" data-source="post: 12645367" data-attributes="member: 130159"><p>I have both the intake and exhaust cams installed but I now need to do a sanity check on the piston to valve clearance. Ford racing does not state that these require cam phaser limiters or lockouts, and these cams although slightly higher lift than the aftermarket cams that do need 20 degree limiters, they have much less duration and overlap. Also, since the cobra jet naturally aspirated motors do not have phaser limiters - this points to these cams still having zero interference even at peak overlap and lift.</p><p></p><p>I am researching now the best way to spin the motor with a big wrench while holding the cams at max performance mode i.e. max overlap. that would be a good sanity check.</p><p></p><p>the other issue, are these hydraulic lifters? and if so, how would you pump those up to get the true measurement?</p><p></p><p>This should have been completely figured out by FRPP, so i'm hoping they answer this question quickly.</p></blockquote><p></p>
[QUOTE="twistedneck, post: 12645367, member: 130159"] I have both the intake and exhaust cams installed but I now need to do a sanity check on the piston to valve clearance. Ford racing does not state that these require cam phaser limiters or lockouts, and these cams although slightly higher lift than the aftermarket cams that do need 20 degree limiters, they have much less duration and overlap. Also, since the cobra jet naturally aspirated motors do not have phaser limiters - this points to these cams still having zero interference even at peak overlap and lift. I am researching now the best way to spin the motor with a big wrench while holding the cams at max performance mode i.e. max overlap. that would be a good sanity check. the other issue, are these hydraulic lifters? and if so, how would you pump those up to get the true measurement? This should have been completely figured out by FRPP, so i'm hoping they answer this question quickly. [/QUOTE]
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Mustang cams - piston to valve clearance
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