what springs for this solid roller cam
#1
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what springs for this solid roller cam
242 242 572 572 112 solid roller with current 1.5 rockers possibly upgrading to 1.6 eventually (.610 lift), I am looking for
A. springs that use factory retainers, keepers and locators
or
B. A kit that includes all of the above
A. springs that use factory retainers, keepers and locators
or
B. A kit that includes all of the above
#5
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iTrader: (26)
.02, .200, and .300 numbers will tell the tale of spring requirements. What base circle?
Why does everyone automatically jump to the conclusion you can't run a 400#/in spring on a solid roller? Unless it's a lobe made for the high ratio stuff, they don't make many "valvetrain killers" with a .380 lobe
Why does everyone automatically jump to the conclusion you can't run a 400#/in spring on a solid roller? Unless it's a lobe made for the high ratio stuff, they don't make many "valvetrain killers" with a .380 lobe
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#8
Like stated, spring choice depends on the rpm range and lobe being used. Max lift is just one part of the equation.
Two cams with identical duration and lift @ 50 can want very different springs if one is an old lazy lobe and one is a crazy aggressive one.
Two cams with identical duration and lift @ 50 can want very different springs if one is an old lazy lobe and one is a crazy aggressive one.
#9
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it's not that solid rollers NEED more pressure than a hydraulic roller. It's that if you float a solid roller lifter it will come apart a lot quicker, so it's usually more beneficial to over-spring them and lose a hp or two from the spring pressure, than blow up a lifter and grenade your motor. You can get a moderate solid roller to live with 160/450, and you can get a killer one to come apart at 400/1300. I've seen quite a few hydraulic roller lifters on solid roller lobes lately, and most of them are running about 400#/in, with more seat pressure to control bounce with the heavier lifters.
#13
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it's not that solid rollers NEED more pressure than a hydraulic roller. It's that if you float a solid roller lifter it will come apart a lot quicker, so it's usually more beneficial to over-spring them and lose a hp or two from the spring pressure, than blow up a lifter and grenade your motor. You can get a moderate solid roller to live with 160/450, and you can get a killer one to come apart at 400/1300. I've seen quite a few hydraulic roller lifters on solid roller lobes lately, and most of them are running about 400#/in, with more seat pressure to control bounce with the heavier lifters.
#14
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Just a simple test away... who's sponsoring the test?