OK,
I run a 360 ( 363.4 to be exact ) SBC in a dirt sprint. If anyone knows anything about sprint cars is they are terribly hard on engines and cranks specifically as the harmonics tend to go through all the internals as there is nothing really to absorb much due to the fact there isn't much there to absorb anything except the driveline( 25-30 in hollow Ti. ) or the water pump on the front.
anyway, I have tried quite a few oils , and I have a good idea what I will continue to use, but in an engine that is either wfo or or really wfo and spins on average a max rpm of 7900 to 8600 some a shade higher some a shade lower.. I try to stay at 7900-8100.. what would you all recommend..? I usually change oil ( dry sump, 11 qts system) every other night and also filter ( HP4 ) with a drain of the pan in between and inspect of the magnetic drain plug for checks. I tend to stay dino simply because of the frequency and cost. my biggest issue is at full temp they all tend to thin too much to the point of being low at low throttle, etc... a few ways i've combatted is hy-per lube additive or the like . suggestions in this area as well.. usin 20w-50 of course. thanx,
m.harris 44H
I run a 360 ( 363.4 to be exact ) SBC in a dirt sprint. If anyone knows anything about sprint cars is they are terribly hard on engines and cranks specifically as the harmonics tend to go through all the internals as there is nothing really to absorb much due to the fact there isn't much there to absorb anything except the driveline( 25-30 in hollow Ti. ) or the water pump on the front.
anyway, I have tried quite a few oils , and I have a good idea what I will continue to use, but in an engine that is either wfo or or really wfo and spins on average a max rpm of 7900 to 8600 some a shade higher some a shade lower.. I try to stay at 7900-8100.. what would you all recommend..? I usually change oil ( dry sump, 11 qts system) every other night and also filter ( HP4 ) with a drain of the pan in between and inspect of the magnetic drain plug for checks. I tend to stay dino simply because of the frequency and cost. my biggest issue is at full temp they all tend to thin too much to the point of being low at low throttle, etc... a few ways i've combatted is hy-per lube additive or the like . suggestions in this area as well.. usin 20w-50 of course. thanx,
m.harris 44H