Comp-R lifters
#1
Comp-R lifters
Ok, i was wondering if i could run stock lifters on the cc306 cam with 1.6 rockers and comp 941 springs. The info on the springs are as follows:
* Seat pressure: 135 lbs. at 1.750 in.
* Open pressure: 357 lbs. at 1.250 in.
* Coil bind: 1.130 in.
* Rate: 447
I calculated the coil bind to be at 1.75-1.13= .62" which should be plenty. At .576" lift of the exhaust, i calculated the open pressure to be 391 lbs. Would i be able to run this setup on a stock lifters, or would i have to run comp-r lifters?
* Seat pressure: 135 lbs. at 1.750 in.
* Open pressure: 357 lbs. at 1.250 in.
* Coil bind: 1.130 in.
* Rate: 447
I calculated the coil bind to be at 1.75-1.13= .62" which should be plenty. At .576" lift of the exhaust, i calculated the open pressure to be 391 lbs. Would i be able to run this setup on a stock lifters, or would i have to run comp-r lifters?
#3
well i have the cam and springs already in the car. The lifters only have 40k on them and all i will be doing will be rockers and guideplates. If i have to do lifters too, it will take alot longer. Just need to know if the stock lifters can handle that kind of spring pressure at 6500 rpm.
#6
How would the stock lifters be on some monster dual valve springs with the stock cam? I bought the car used over a year ago, and it has some beefy dual valve springs with the stock cam, and I'm starting to get worried about collapsing a lifter.
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