Got My Custom Cam Spec's
01-01-2009, 08:27 PM
#21
Read carefully what Patrick said. His first words are "There should be no issues if cam is installed at 107 ICL". Are you going to degree the cam?
dot to dot doesn't necessarily mean it is at that. the .050 specs are generic and the grind will not be exactly at those figures. So it is always wise to degree and check PTVC. Not only will you know what is happening but also you'll benefit from the true valve events that Patrick laid out for ya.
Paying attention to detail on install of cams ensures every ounce of power we so dearely seek is taken out of it.
dot to dot doesn't necessarily mean it is at that. the .050 specs are generic and the grind will not be exactly at those figures. So it is always wise to degree and check PTVC. Not only will you know what is happening but also you'll benefit from the true valve events that Patrick laid out for ya.
Paying attention to detail on install of cams ensures every ounce of power we so dearely seek is taken out of it.
have fun with your install partick speced u a great looking cam
...make sure u degree the cam, it is worth it in my opinion...cheap piece of mind... 
01-01-2009, 08:33 PM
#22
Should be no P to V clearance issues if installed at 107 ICL. Your cam with it's XFI lobe on the intake is most likely closer to 232 at .050" and 283ish at .006" in duration (when measured on the cam doctor), making things a little tighter. The 231 LSL lobes are closer to 281 at .006". Also, the IVO (where you run into trouble) is 4 degrees later at .006" than a T-Rex. The T-Rex, while tight, still fits. A 4 degree later IVO gives you lots more breathing room.
I've spec'd over 100 cams in the 230 at .050" range for cam-only applications and none have reported dangerous P to V clearance. Russell should be able to run this cam with confidence.
I've spec'd over 100 cams in the 230 at .050" range for cam-only applications and none have reported dangerous P to V clearance. Russell should be able to run this cam with confidence.
01-01-2009, 09:32 PM
#23
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that is all i was saying just make sure, i wasnt doubting patrick at all, but sometimes cams get cut wrong...i just read a thread the other day where a shop bought an off the shelf cam and it was 4 degrees off...it sometimes happens...
have fun with your install partick speced u a great looking cam...make sure u degree the cam, it is worth it in my opinion...cheap piece of mind...
have fun with your install partick speced u a great looking cam
...make sure u degree the cam, it is worth it in my opinion...cheap piece of mind...
01-02-2009, 07:33 AM
#25
bottom line every cam install should be degreed, or cam doctored, also checking PTVC is a good idea too, and just spinning the crank by hand and listening for the valves to hit is not the proper method…
01-02-2009, 10:13 AM
#26
TECH Senior Member
The cam prolly is from TR. Each TR cam gets a full lift report, so he will know where he stands as far as specs.
Still needs the degree wheel and dial for PTV and to verify on motor as well as adjusting. Bottom line as said, paying attention to details makes etra power, always.
Still needs the degree wheel and dial for PTV and to verify on motor as well as adjusting. Bottom line as said, paying attention to details makes etra power, always.
