Slant Six Forum :: Rear Gear Oil

Spool or SG?

I have seen quite a few people run ATF when they have a spool.

Not sure I would go that thin, but it works for them.

I can tell you what I have used and what i now use at the Banquit. Thanks Ron

It Aint Over Until I Win

I want to try to achieve some oil / weight / viscosity between cold runs and hot ones..

THe cold runs the car is a bit slower so If at a race the car sits looooong between rounds or is just cold it slows down sometimes a tenth.

Greg

Quote:

Greg

I've seen many of the faster cars (You know, the Big Dogs) running their cars up on jack stands before a pass to warm up the trans and rear...

Quote:

I can tell you what I have used and what i now use at the Banquit. Thanks Ron

It Aint Over Until I Win

I'm gonna hold you to that Ron. I wanna do what you do too!

Author:	Greg Ondayko [ Mon Jan 30, 2012 1:39 pm ]
Post subject:	Rear Gear Oil
How many of you racers run 40 or 50 wt engine oil in the rear end of your drag car instead of 85W140 Hypoid stuff? I have talked to romeo about this But I haven't tried it yet.. I don't want to blow anything up.. or shear gears or anything dumb like that. I have heard stories about some guys doing this... I was just curious.. Thoughts / discussions welcome Greg

Author:	emsvitil [ Mon Jan 30, 2012 1:46 pm ]
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No hypoid additives, I wouldn't risk it............

Author:	Doc [ Mon Jan 30, 2012 1:49 pm ]
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There are many engineered "lite" gear oils made for this application... Redline has a few different ones. DD http://www.race-mart.com/Synthetic-Shoc ... 12711.html

Author:	slantzilla [ Mon Jan 30, 2012 2:56 pm ]
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Spool or SG? I have seen quite a few people run ATF when they have a spool. Not sure I would go that thin, but it works for them.

Author:	sandy in BC [ Mon Jan 30, 2012 3:03 pm ]
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A lot of the blown alcohol bogger cars run white grease......specially with ratios over 4.88

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Author:	turbo66valiant [ Mon Jan 30, 2012 3:52 pm ]
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Say, The 50 wt crankcase oil is in the same viscosity range as the 90 wt gear oil. They rate them differently to get the different #'s. Confusing but true. Running the 75w90 would be a good choice. I see Redline's Superlite is just a 75w90. I've heard the same stories about ATF in rear-ends but never tried it. The ATF (10-20wt) would fall into the 75-80 wt class in gear oils. Good luck Later, Ryan

Author:	Ron Parker [ Mon Jan 30, 2012 6:00 pm ]
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this is one of my secrets of a race car that can stay dialed in. My car with the stock engine i used ------ in the rearend racers said you can not do this. I can do what i want to in my race car. With the Bruner race engine I use ------- in the rear end . It is not so much I would tell but it is about the performance and dependable that I have had and that is what it is worth. I can tell you what I have used and what i now use at the Banquit. Thanks Ron It Aint Over Until I Win

Author:	sandy in BC [ Mon Jan 30, 2012 6:04 pm ]
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Not everyone can use chewin tobacco in their diff Ron.....it will mess yer Sure-Grip.

Author:	Slant Cecil [ Mon Jan 30, 2012 6:07 pm ]
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Quote: Spool or SG? I have seen quite a few people run ATF when they have a spool. Not sure I would go that thin, but it works for them. I bought a Duster in the mid '80s that had ATF in the diff along with 6.17 gears.

Author:	Ron Parker [ Mon Jan 30, 2012 6:09 pm ]
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wrong answer Sandy as usual but it could be Bagel frosting Ron It Aint Over Until I Win

Author:	Greg Ondayko [ Tue Jan 31, 2012 4:05 am ]
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Quote: Spool or SG? I have seen quite a few people run ATF when they have a spool. Not sure I would go that thin, but it works for them. In My case this would be with a spool. No sure grip or clutches of any kind. I want to try to achieve some oil / weight / viscosity between cold runs and hot ones.. THe cold runs the car is a bit slower so If at a race the car sits looooong between rounds or is just cold it slows down sometimes a tenth. Greg

Author:	Rob Simmons [ Tue Jan 31, 2012 11:14 am ]
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Quote: I can tell you what I have used and what i now use at the Banquit. Thanks Ron It Aint Over Until I Win I'm gonna hold you to that Ron. I wanna do what you do too!

Author:	Rob Simmons [ Tue Jan 31, 2012 11:17 am ]
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Quote: I want to try to achieve some oil / weight / viscosity between cold runs and hot ones.. THe cold runs the car is a bit slower so If at a race the car sits looooong between rounds or is just cold it slows down sometimes a tenth. Greg I've seen many of the faster cars (You know, the Big Dogs) running their cars up on jack stands before a pass to warm up the trans and rear...

Author:	Greg Ondayko [ Tue Jan 31, 2012 1:47 pm ]
Post subject:
Quote: Quote: I want to try to achieve some oil / weight / viscosity between cold runs and hot ones.. THe cold runs the car is a bit slower so If at a race the car sits looooong between rounds or is just cold it slows down sometimes a tenth. Greg I've seen many of the faster cars (You know, the Big Dogs) running their cars up on jack stands before a pass to warm up the trans and rear... Yes I have done this and it does help, but it's not the same as a 105 mph blast down the 1/4 Mile At times rear gear temps after a run are 105* and then quickly cooll back to 85-60* running on a jack somtimes gets it back up to 90*.. Greg

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Author:	slantzilla [ Tue Jan 31, 2012 2:45 pm ]
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Quote: Quote: I can tell you what I have used and what i now use at the Banquit. Thanks Ron It Aint Over Until I Win I'm gonna hold you to that Ron. I wanna do what you do too! Drink heavily and pass out early? Greg, it does help consistency to make a long trip to staging after you sit for awhile. If you get held up in staging it's best to dial down a little.