Are synthetic oils and lubricants any quicker
 

Just got done installing a new braced up rear end housing in my Cuda and now I,m wondering if synthetic gear lube is worth the money and is there any Et in it. If so what brand , weight ect did you use??
Jeff Ross

Re: Are synthetic oils and lubricants any quicker
 

more ET to be had in running less lube/oil than there is in type.

Re: Are synthetic oils and lubricants any quicker
 

My experience with synthetic oil in the rear end is that the first run of the day will not be slower than the second run all other things equal.

Bill

Re: Are synthetic oils and lubricants any quicker
 

Bill, that is about all I noticed.

As far as running less lube, I would not recommend that. I use Royal Purple 80wt in mine.
It holds almost two bottles. I was running one thinking about drag, or "windage". At Indy in 2011 James Lee rode up there with me. We were parked across from long time hero of mine Jimmy Bridges. He told James about testing he did on the bench with a rear end he rigged up with a clear back cover so he could watch the line at speed. I don't remember the speed he told James, but most of the lube goes out into the axle tubes. Low lube levels cause the gear set to run out of lube sooner, or at a lower speed.
After hearing that I dumped the other bottle of lube in my rear end. Ran my first MPH over 132. Wasn't sure if I could believe it until my MPH stayed about half a MPH for the rest of the year. My gear life is better to boot. With the lube going to the axle tubes, drag on the gears running in the lube becomes moot. If that info came from somebody other than Jimmy, I might have not been so quick to believe it. Jimmy tests about everything.
Hope this helps somebody else.

Re: Are synthetic oils and lubricants any quicker
 

The fact is many class racers and some bracket racers run less than "2 bottles." I haven't run more than 1 quart of Mobil 1 Synthetic gear lube in over 2 decades and the R&P on my Firebird failed after 700+ runs 60 footing low 20's to high teens and my 3880 lb. chevelle typically got 200 passes on a R&P 60 footing 30s and a best of 1.28.

Re: Are synthetic oils and lubricants any quicker
 

Many people doing something does not make it correct.

I don't break rear ends, they just stay quieter longer. Less wear.

When it comes to listening to you or Jimmy Bridges, well....

Re: Are synthetic oils and lubricants any quicker
 

Ed, thats a no brainer LOL

Re: Are synthetic oils and lubricants any quicker
 

I typically make 250+ passes a season and you?

Re: Are synthetic oils and lubricants any quicker
 

And I should care because?

Re: Are synthetic oils and lubricants any quicker
 

the point is I as do most serious bracket racers, make far, far more passes in a season that you do who "don't break rear ends"

Nothing breaks when it's sitting in the trailer.;)