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Author Topic:   Oil pressure after race
posted May 02, 2004 08:38 AM
last night after the race my oil pressure was around 40 pounds when it starts off at around 65.... motor was running a little warm (220) and the oil might have been a half quart low... running an ac-delco filter and kendall oil 20w-50.... motor only has 3 nights on it... so i know the bearings are probably good just wondering if its something i should get used to

posted May 02, 2004 08:44 AM
was the pressure at 40 psi at idle or while racing? The oil pressure will drop when its hot especially if your water temp was 220, your oil temp was probably 250+. Its normal for it to be that low under idle but if its like that while on the load pedal then you have other problems.

posted May 02, 2004 09:07 AM
i agree to 2nd2none

posted May 02, 2004 11:29 AM
Alot of people are starting to have problems with Kendall oil for some reason.I have used it for years but not anymore.Engines are running low pressure and getting alot of blow by threw the breathers.I dont know whats going on.

posted May 02, 2004 11:52 AM
your alright mine idels cold a 65 runs 55 after ideling but change that oil if she gets over 220 change it whether it's time or not and switch to valvoline lol

[This message has been edited by racer17j (edited May 02, 2004).]

posted May 02, 2004 03:11 PM
i'm going to try napa 22-50 this time with a wix long filter.. see how that goes

posted May 02, 2004 04:24 PM
valvoline is the only way to go, i run vr-1 20w 50. i carry 85 to 90 lbs at start up when cold and 70 to 65 at the end of race.


posted May 02, 2004 09:54 PM
65PSI at idle???????? We run ours, in three engines, two Latemodle and one limited openwheel at 60 psi at 7500RPM amd try to keep it as low as possable at idle. Our External oil pump motor idles at 8 psi and caps at 50 @ 8000. Anything over 10 psi per 1000 rpm with regular oil is KILLING THE POWER!! Not to mention heating up the oil. You can also wash the bearings and kill the engine. Are you guys pluging the oil pressure bypass on the filter adapter? If not you are keeping it open and bypassing unclean oil to the engine.

posted May 03, 2004 09:43 PM
went down tonight took it and washed it, fired it up at the car was 65 psi... oil just must have been hot... pulled oil filter apart during draining... no chunks or anything.. oil still had a few shavings in it... motor is 2 nights old...

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