Schaeffer's Racing Oils

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Jan 15, 2025
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Getting ready to fire up an aluminum SBF for road race use in my Sunbeam Tiger. Previously ran Rotella T6 or Royal Purple mostly. Motor (Gasoline) makes around 620hp in the 7500 rpm range, solid rollers, 8qt pan, oil cooler etc.

Moving away from T6 and RP to Schaeffer's. Engine has been broken in on the dyno. In the car now and filled with Schaeffers 15w40 Racing 7000. Likely change to an xw50 weight as the car runs hot.

I see also Schaeffer's has a Racing 9000 as well as the non-synthetic 50wt that I would not rule out.

Recommendations on 7000 vs. 9000 or even regular 50wt?

Not looking for different brand recommendation (sorry *your brand here* people). Don't care about extended drain, or oil testing but from racing users of Schaeffer's. Any folks road racing here?

Sandy

20241129_151550.webp
 
Given your caveats and provisos on any recommendation I’d suggest you ask Schaeffer’s directly. Have you done that? They should know their products better than anyone here.
Agreed, if you're going to drink the Schaeffer's Kool Aid, might as well go full tilt and do what they say. :)
 
Well, specifically looking for people running it, not a huge deal if you don't know or don't use it. Will give the folks at Schaeffers a call, but more looking to folks running it, if you aren't, best advice is what you gave I guess.

Sandy
 
Well, specifically looking for people running it, not a huge deal if you don't know or don't use it. Will give the folks at Schaeffers a call, but more looking to folks running it, if you aren't, best advice is what you gave I guess.

Sandy
Good to meet you Sandy, hope you will enjoy
Bitog in the long term. Cheers...
 
For your application, you want to focus on friction reduction, heat tolerance, foam/aeration prevention, and shear stability. Rotella is basically the exact opposite of that, and Royal Purple is just Gucci Valvoline. Conventional oil would be a bad choice given the high heat. I'm not much of a Schaeffer's fan, but I would likely use the 9001 Supreme 5W-50 over the other 50 grade options from them.

I personally would recommend High Performance Lubricants Bad Ass Racing 10W-50.
 
As far as xxW40 vs xxW50, I would use the one that gives you the hot oil pressure that you want.
 
For your application, you want to focus on friction reduction, heat tolerance, foam/aeration prevention, and shear stability. Rotella is basically the exact opposite of that, and Royal Purple is just Gucci Valvoline. Conventional oil would be a bad choice given the high heat. I'm not much of a Schaeffer's fan, but I would likely use the 9001 Supreme 5W-50 over the other 50 grade options from them.

I personally would recommend High Performance Lubricants Bad Ass Racing 10W-50.
Thanks, stepping away from both Rotella and RP. What is the main reason for 9000 vs 7000 choice? Temperature capability?
 
Getting ready to fire up an aluminum SBF for road race use in my Sunbeam Tiger. Previously ran Rotella T6 or Royal Purple mostly. Motor (Gasoline) makes around 620hp in the 7500 rpm range, solid rollers, 8qt pan, oil cooler etc.

Moving away from T6 and RP to Schaeffer's. Engine has been broken in on the dyno. In the car now and filled with Schaeffers 15w40 Racing 7000. Likely change to an xw50 weight as the car runs hot.

I see also Schaeffer's has a Racing 9000 as well as the non-synthetic 50wt that I would not rule out.

Recommendations on 7000 vs. 9000 or even regular 50wt?

Not looking for different brand recommendation (sorry *your brand here* people). Don't care about extended drain, or oil testing but from racing users of Schaeffer's. Any folks road racing here?

Sandy

View attachment 258993
If going completely different route why not open to any other manufacturers?
 
A long time ago I used Schaeffers 20w-50 racing oil in a SBC that I drag raced. Shifted at 6500 and it ran hot, (with a flat tappet cam) - never had an issue. I would not hesitate to use their oil in a racing application.

The current oil you have in the sump is pretty stout. It would be nice to see what kind of oil pressure you get. Before making any changes.

See what the team at Schaeffers thinks.
 
If going completely different route why not open to

If going completely different route why not open to any other manufacturers?
Trying to focus on one brand for starters, Schaeffer's seems to be one that is a good option and unsolicited reviews. Only thing is a few "it's on the thin side of viscosity" reports.

Likely many other oils will work just fine, if Rotella has worked well, many better race oils than that. Will see what blows up on this motor, usually non bearing, but mechanical failure (bad driver over rev, etc).

I do know this with old RP you can run a motor flat out 30 or so seconds without oil pressure before it stops... was not an oil issue that caused pump failure. 😉
 
If I had a nice and expensive racing engine I cared about, I’d use nothing but a dedicated race oil that is based on a specific recommendation by the blender. Red Line and HPL come to mind as possibilities but there are others.

But maybe that’s just me.
Not just you, but don't see anything that shows practically either of those oils performance is better than Schaeffer's or any of the dozens of touted Race oils. If I were to look at a second candidate I might look at Motul 300v, again more focused on a single brand for now, and all are definitely a step up from the diesel oil I ran. As I said, the oil is not likely going to be the cause of the fail on the engine.
 
Well, barring an oil that’s designed for racing I’d pick one with Porsche A40 approval. That is used for racing and if you’ve ever seen what goes into obtaining that approval it’s extremely demanding. Several oils with this approval are available off the shelf at Walmart for a good price.
 
Not just you, but don't see anything that shows practically either of those oils performance is better than Schaeffer's or any of the dozens of touted Race oils. If I were to look at a second candidate I might look at Motul 300v, again more focused on a single brand for now, and all are definitely a step up from the diesel oil I ran. As I said, the oil is not likely going to be the cause of the fail on the engine.

I agree it's not likely to be a cause of failure. It can matter for power though. HPL's Bad Ass Racing oil, for example, is formulated around Late Models and Sprints where every HP counts. Its peak friction coefficient is at 305°F. It not only tolerates high heat but thrives in it. Hence, my recommendation.
 
Follow up -

Called Schaeffer's and got basically the same story, the 7000 Racing should work fine, 9000 Racing is better due to full syn and temp capacity. Both have similar additive package. I would say much of what was said here. Support was friendly and got right though.

Getting back to work on the car next week hopefully start it up soon.

I do have an oil temp sensor in the pan and will see how it hot it runs once I get it rolling on the track. Likely use up the couple of gallons of 15W-40 Racing 7000 in getting the car tested and shaken out, watching hot oil pressure and oil in the pan temps.

Thanks to all that chimed in!

Sandy
 
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