Tweet
currently running a Schneider 296H .485 lift 242@0.05 106 lobe sep. stock valves double valve springs seat pressure check at machine shop around 135-145 avg head mild ported shaved .100 stock bottom end kb pistons 40 over
running a short 1/4 mile 3000 off the corner ~7000-7200 end of straight
After about 10-12 laps valves start to float.. oil pressure starts around 40 and ends up around ~25-20 at end of 15 laps.
rules are open now so i can go solid or solid roller.. I have about a 3 week wait at the machine shop to decide what i want to do..
so i guess i have a few questions
1. Do you think its the hyd set-up causing the valve float, wrong spring setup or oil pressure ect...?
2. Thought about going with bigger valves. Does anyone sell the oversized valves with the same multi groove for stock retainer or am i stuck paying $300 for valves and keepers from esslinger - single groove.. called racer walsh but they are done selling 2300 valve train parts according to Paul.
3. if i go to solid or solid roller, considering I'm sticking with stock rods and crank going to keep the rpm at or under 7500, would i benefit much with solid roller over solid flat tappet.. what lift/duration combo would you recommend for either .. would like to use the valve springs i have only 10 races on them.
4. If i did go with the flat tappet could i run the roller rocker arms if i have them.. would that provide extra benefit.
Thanks
running a short 1/4 mile 3000 off the corner ~7000-7200 end of straight
After about 10-12 laps valves start to float.. oil pressure starts around 40 and ends up around ~25-20 at end of 15 laps.
rules are open now so i can go solid or solid roller.. I have about a 3 week wait at the machine shop to decide what i want to do..
so i guess i have a few questions
1. Do you think its the hyd set-up causing the valve float, wrong spring setup or oil pressure ect...?
2. Thought about going with bigger valves. Does anyone sell the oversized valves with the same multi groove for stock retainer or am i stuck paying $300 for valves and keepers from esslinger - single groove.. called racer walsh but they are done selling 2300 valve train parts according to Paul.
3. if i go to solid or solid roller, considering I'm sticking with stock rods and crank going to keep the rpm at or under 7500, would i benefit much with solid roller over solid flat tappet.. what lift/duration combo would you recommend for either .. would like to use the valve springs i have only 10 races on them.
4. If i did go with the flat tappet could i run the roller rocker arms if i have them.. would that provide extra benefit.
Thanks
Comment