NASCAR teams use off the shelf oil?

[carl97ss]

Re: 11,000 rpm bike motor vs a 6800-9000rpm NASCAR motor...I would think that engine design of the bike motor puts no more stress on itself than a NASCAR engine. Probably less. I would suspect that a NASCAR motor sees more load on it during a race pushing a 3400 lb. (?) car+ driver around than a High reving bike motor pushing 650 lbs. (with driver?) around.

Gearing and wind resisistance probably should be taken into account. My point being, i believe a NASCAR motor puts great demands on an oil. BUT...what do I know...

 

[mracer]

Actually what I have been hearing is that 9200 rpm redlines are becoming common in NASCAR engines these days, with some of the more daring teams pushing it to 9500 rpms.

In my opinion, 9200 to 9500 rpms with old school push rod V-8 engine technology from the 1950's is just incredible. Combine that with the one engine per weekend rule and I am amazed that these engines stay together. Sure they occasionally grenade one, (think Ryan Newman in last years greatest inferno kablamo blowup of all time) but for the most part they are very reliable.

Is there really a more demanding task for an engine oil than an 800HP NASCAR Cup engine that turns 9500 rpms?

[ May 07, 2004, 04:21 PM: Message edited by: mracer ]

 

[tweeker43]

f1 cars are putting out a bit more horsepower at about twice the rpm. of course, they aren't lugging nearly as much weight.

quote:

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Originally posted by mracer:

Is there really a more demanding task for an engine oil than an 800HP NASCAR Cup engine that turns 9500 rpms?

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[ChrisW]

quote:

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Originally posted by tweeker43:
f1 cars are putting out a bit more horsepower at about twice the rpm. of course, they aren't lugging nearly as much weight.

quote:

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Originally posted by mracer:

Is there really a more demanding task for an engine oil than an 800HP NASCAR Cup engine that turns 9500 rpms?

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what about oil that runs through a turbocharger in which the turbine spins at over 50,000rpm? it's not as harsh as the reciporicating mass in an engine, but it is a lot higher rpm.

 

[Thomas Pyrek]

quote:

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Originally posted by 97tbird:
if you look carefully at the area on the bottle where the oil grade is normally printed,, it looks like a longish white blur(letters?) followed by a shorter white blur(2-digit number?)

so can it be a straight "SAE" and "30" or "40"?

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I checked at Walmart today. White for Pennzoil is SAE 30.

 

[JonS]

Makes sense to use a straight grade oil since they are always at high operating temps. There is no need for a multi-grade oil when they race in warm temps???