Dyno #'s for Crane Gold Race Rocker Arms
05-16-2005, 03:51 PM
#21
Originally Posted by 98t56TA
You are apparently missing the point and on your own little tangent. These rockers were designed to accelerate the valve faster than stock, that's why they are ground breaking.
Only time will tell, ok, the fact of whether a spring can hold onto that themselves is another issue all together. The fact remains, the original numbers would be increased because the extra rate increases the aggressiveness of the lobe thereby increasing the apparent size of the cam because of these rockers.
Only time will tell, ok, the fact of whether a spring can hold onto that themselves is another issue all together. The fact remains, the original numbers would be increased because the extra rate increases the aggressiveness of the lobe thereby increasing the apparent size of the cam because of these rockers.
06-04-2005, 11:09 PM
#24
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how about these rockers on a stroker 408....
cam is a 246/248 .603/.615 lift @ 114lsa.....
the C.R. is at 11.3:1.....
i know its an old thread but will this work?
cam is a 246/248 .603/.615 lift @ 114lsa.....
the C.R. is at 11.3:1.....
i know its an old thread but will this work?
06-05-2005, 01:23 PM
#26
It's just my opinion, but I wouldn't run these rockers on a XE-R lobe. The XE-R is the hardest lobe out there, and there is a reason no one has made a hydraulic cam harder than that. Adding these rockers would inded make the ramp rate faster, and I just don't think it is a good idea. Some people might get away with it for a while, but the valvetrain better be stout.
06-06-2005, 05:20 AM
#27
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I've been using a set of Crane 1.80 rockers with my custom grind Cam Motion cam (its ramp rates are just a hair less aggressive than the XE-Rs) for quite awhile now and I've had no problems whatsoever. I think Beast96Z hit the nail on the head. Use the right valvetrain components, ones built for the job, and you won't have any trouble. 
FWIW, my car is running stronger than it ever has before.
FWIW, my car is running stronger than it ever has before.
06-06-2005, 08:48 AM
#28
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Originally Posted by JakeFusion
.581/.588 sounds like 224/228 XE-R? If it's XE-R, I wouldn't touch a 1.8 rocker, because the ramp rate is insane on that lobe. That = bad combination.
I am running the 1.8 crane rockers with an custom crane ground cam. I am not sure how aggressive the lobes are vs a comp xe-r lobe. The cam has a .638 lift with 1.8 rockers and the combination works great.
