I ran a Comp 308R on the street for a while before I built my blown motor. My Mustang ran high 10's with it and had no troubles driving in traffic or highway. I was running a 454 incher with ported Edelbrock heads.
I didn't run super high spring pressure, 200 seat and a little over 500 open. It pulled to 6500 fine.
The K-Motion 1100 spring works well with the 308R. I ran the regular Comp non-oiling roller lifter. The Comp roller lifters now have pin oiling and are a lot cheaper than the Crower hippo lifters...but I'm sure the Crower lifter is an outstanding piece.
My advise if you're going to run a solid roller on the street. Keep an eye on the springs. When they "go away" things bust. New springs every winter, new lifters every third year.
BTW, the 308R is .675 gross lift, 260@.050 duration on 110 lobe separation. A very old school mild ramp roller that's easy on parts.
Do you remember the compression ratio you ran with that combo, Tommy?
thanks,
pl
I was running the old TRW L2298 domed pistons, Le Mans rods, and a 1UB crank. Pretty old school, I think compression was about 12:1. That motor is still on a stand in my garage.
BTW, I coated the tops of the pistons here at home with the Tec-Line do-it-yourself stuff. The slugs still look good on top and none of the coating flaked off. I'm impressed with this product.
Tommy, do you remember what you were using for fuel with that engine? I won't go to 12:1, but I might try 11:1 on high octane pump gas. I can get 93 octane here, but 91 is much more common.
WILCO on the solid roller spring inspection and replacement. I think with bushed, pressure fed lifters and a fairly mild cam profile, it will last pretty well. I will keep an eye on it, though. Springs are cheap and easy compared to other parts.
thanks,
pl