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Ron Gusack · 07-31-2018, 03:46 PM

433 12:1 BBC bracket engine that has 43 lbs of oil pressure crossing the 1/8 mile stripe at 6500 rpm. The engine has 150 runs on it and I always get an oil analysis from Blackstone that never shows any abnormal wear. I used to run HV pumps with lots of pressure cause I'm from the 10 psi/1000 rpm era so this worries me some. I run Brad Penn 10-30. The car is 3000 lbs with me and goes 6 teens in good air 1/8 and low 9.70's 1/4. Clearances are .0021-.0023 rods and I think .0025ish mains.

Am I living on the ragged edge? Should I run 40 weight? I have some straight 50 Valvoline racing on the shelf that I could add. I run 6 total. Thanks for any and all thoughts.

07-31-2018, 03:46 PM	#1
Ron Gusack Member Join Date: Feb 2009 Posts: 243 Likes: 1 Liked 7 Times in 6 Posts	Oil pressure question 433 12:1 BBC bracket engine that has 43 lbs of oil pressure crossing the 1/8 mile stripe at 6500 rpm. The engine has 150 runs on it and I always get an oil analysis from Blackstone that never shows any abnormal wear. I used to run HV pumps with lots of pressure cause I'm from the 10 psi/1000 rpm era so this worries me some. I run Brad Penn 10-30. The car is 3000 lbs with me and goes 6 teens in good air 1/8 and low 9.70's 1/4. Clearances are .0021-.0023 rods and I think .0025ish mains. Am I living on the ragged edge? Should I run 40 weight? I have some straight 50 Valvoline racing on the shelf that I could add. I run 6 total. Thanks for any and all thoughts.