4.8, boost, cam?
04-24-2013, 04:12 PM
#21
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PRC duals .650 lift. That's the first I've ever heard that. I let the motor idle for a least thirty minutes at one part not the. It had 400 miles put o. This motor including g the tuning for it.
04-24-2013, 04:56 PM
#22
What springs did you have in when you installed the cam? My whole cam was whipped out. I get you have to run an oil with a lot of zinc and install light spring for break in for comp cams. I think it's something new they just added to the install instruction. It says not to install the inner spring of dual springs for break in and run the engine at 2000-2500rpm for thirty minutes.
the core is too soft, spring too stiff, or lifter took a . The stiff dual springs are usually the cause of premature cam, and lifter ware. Once you get past about 330 lbs open pressure on a daily driver reliability is greatly reduced.
04-25-2013, 04:08 AM
#24
That is for flat tappet cams not hyd roller cams. Roller cams don't need a break in but still not a bad idea to run at 2-2500 rpm for 10-15 min to get oil up on the rollers. Also can't go wrong with the zink. If roller cam takes a the core is too soft, spring too stiff, or lifter took a . The stiff dual springs are usually the cause of premature cam, and lifter ware. Once you get past about 330 lbs open pressure on a daily driver reliability is greatly reduced.
the core is too soft, spring too stiff, or lifter took a . The stiff dual springs are usually the cause of premature cam, and lifter ware. Once you get past about 330 lbs open pressure on a daily driver reliability is greatly reduced.Only reason I replaced my lifters was because I thought they weren't pumping up. Turned out to be a damn crack in my manifold.
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