To Fly Cut or Not to Fly Cut???
To Fly Cut or Not to Fly Cut??? I will be installing a cam in my '02 firehawk soon, its specs are 238/244-.605/.610- 114+4 with ported 202/157 - 243 heads, unmilled just cleaned.. My builder/tuner says it will be fine, what does anyone else think???
I'd get ready to flycut!
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TBH you are really going to need to test it out with clay. The lift isn't too extreme but with the duration you are looking at the transition from exhaust stroke to intake stroke will bite you in the ***. If it were a say 226/230 cam with the same lift you'd probably be close but safe.
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TBH you are really going to need to test it out with clay. The lift isn't too extreme but with the duration you are looking at the transition from exhaust stroke to intake stroke will bite you in the ***. If it were a say 226/230 cam with the same lift you'd probably be close but safe.
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So. . . . what you're saying is the movement of the valves in relation to the movement of the piston is irrelevant? Granted timing is a part of this, but if the total movement of the valve can intersect with the total movement of the piston, then I would be concerned with PTV clearance...
So. . . . what you're saying is the movement of the valves in relation to the movement of the piston is irrelevant? Granted timing is a part of this, but if the total movement of the valve can intersect with the total movement of the piston, then I would be concerned with PTV clearance...
where is the piston when the valve is at max lift...duration is the king along with split...
Hmmmm? Well with all the controversy I will definitely be checking before final assembly. Since i dont know exactly what has been taken from the heads, it will be better to be safe than sorry, especially since so many people are on the edge or ARE recommending cutting... Thanks for the input!!
If we setup the Stage 2.5 LS6's specifically for the MS3, we can make it comfortable to run, albiet still tight. But on your run of the mill ported LS6 head with 2.02"/1.57" valves, some random machine shop's valvejob, etc I will go ahead and bet the OP needs to flycut.
__________________
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COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
If we setup the Stage 2.5 LS6's specifically for the MS3, we can make it comfortable to run, albiet still tight. But on your run of the mill ported LS6 head with 2.02"/1.57" valves, some random machine shop's valvejob, etc I will go ahead and bet the OP needs to flycut.
