Anyone running >.630 lift
05-23-2005, 03:29 PM
#21
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Originally Posted by Spinmonster
So the initial ramp rate is 50 but increases as the lift increases? My Xer cam is a 49 ramp rate. This cam is a 50 by the same (.006-.050 lift formula). What lifters do you use? It must pull great down low for a huge cam.
The cam did have good low end for what it was when it was running and not destroying my number 8 intake lifter. Cam was a 239/246 106lsa 106icl LSK/XE-R combonation on a 346 with about 11.5 to 1 compression. The car did have 4.56s though so it is kind of tricky to decipher between good torque and good gear multiplication.
05-23-2005, 05:19 PM
#22
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My cam specs are 231.8/237.1 .589/.598 on a 111.9 LSA EDC, Does this help any with the P/V clearance issue? How much should i mill my heads for the 11:1 CR?
05-23-2005, 09:45 PM
#23
Originally Posted by BTL FED
732/734 Jesel Solid Lifters, Jesel Mohawk Rockers, Comp 944 Springs
Did you have your lifter bores bushed? I was told comp recommends this with large solid rollers?
05-23-2005, 09:53 PM
#24
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beware of the comp LS1 solid lifters. The most recent version was pulled from the market due to the oil holes being too large and allowing all the oil to go to the top of the motor. Some have had succes epoxying one hole and having it work ok. But Comp is in the process of redesigning the LS1 solid lifter from scratch and should be avalable soon. They are designing it to be a drop in lifter from what I gather. For now...use the Morel solid lifter or the Jesel.
My cam is .731/.714 and Comp 999 springs
My cam is .731/.714 and Comp 999 springs
Last edited by 383LQ4SS; 05-23-2005 at 10:01 PM.
05-23-2005, 10:11 PM
#25
Originally Posted by 383LQ4SS
beware of the comp LS1 solid lifters. The most recent version was pulled from the market due to the oil holes being too large and allowing all the oil to go to the top of the motor. Some have had succes epoxying one hole and having it work ok. But Comp is in the process of redesigning the LS1 solid lifter from scratch and should be avalable soon. They are designing it to be a drop in lifter from what I gather. For now...use the Morel solid lifter or the Jesel.
My cam is .731/.714 and Comp 999 springs
My cam is .731/.714 and Comp 999 springs
05-24-2005, 08:44 PM
#26
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As LOnSLO said -- the holes in the Comp solid lifters were not to large. The problem was that one of the holes that feeds the top end sees direct pressure from the oil galley therefore flooding the valvecovers. Expoxy works great to fix them -- they are in the fastest NA LS1 in the country with no problems to over 9000 rpm! 
Also, not to turn this into a solid roller discussion - but you have to be careful with your lifter selection because the various kinds of solid lifters can only handle so much lift before you see a supstantial pressure drop.
Also, not to turn this into a solid roller discussion - but you have to be careful with your lifter selection because the various kinds of solid lifters can only handle so much lift before you see a supstantial pressure drop.
