Ishodu
SHO Member
After talking to SHONUT and showing him the measurements I have taken a few months ago he insisted that I post them. He said he is unaware of anyone actually getting these exact numbers. Well here they are from a 3.0L head.
Intake .342” max lift
Exhaust .325 max lift
Over lap is 2 deg cam from dead closed. 4 deg crank
Over lap from .050-.050 is -7 deg cam or -14 deg crank this is the number that is usually used to measure over lap.
I did do the duration as well and it was very close to what Josh has posted on his web site but I somehow do not have them in my notes anymore.
MTX Intake 0.348” Lift, 205° Duration @ 0.050”
MTX Exhaust 0.328” Lift, 201° Duration @ 0.050”
When turning the cams and looking by eye after exhaust stroke it looks like there is a moment when both valves are completely closed you need dial to see that there not.
I would think that there could be gains to be made by using a set of adjustable exhaust cams and making some overlap. But there might not be enough lift to really gain from it.
Intake .342” max lift
Exhaust .325 max lift
Over lap is 2 deg cam from dead closed. 4 deg crank
Over lap from .050-.050 is -7 deg cam or -14 deg crank this is the number that is usually used to measure over lap.
I did do the duration as well and it was very close to what Josh has posted on his web site but I somehow do not have them in my notes anymore.
MTX Intake 0.348” Lift, 205° Duration @ 0.050”
MTX Exhaust 0.328” Lift, 201° Duration @ 0.050”
When turning the cams and looking by eye after exhaust stroke it looks like there is a moment when both valves are completely closed you need dial to see that there not.
I would think that there could be gains to be made by using a set of adjustable exhaust cams and making some overlap. But there might not be enough lift to really gain from it.
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