Accusump - pros & cons

[SBillinson]

A wise man once said: An ounce of prevention is worth a pound of cure.

There is no downside to an accusump.

On my car, I have a single stage external pump plumbed to a good pan with a sump that's almost completely covered and baffled. Oil pressure drops at the stripe if I don't immediately kill the engine.

Apart from an accusump, I "waste" my money on coated bearings and racing oil.

On an expensive, professionally-built racing engine that turns 10,400 rpm pass after pass, I "foolishly" spend a few hundred more on parts that any professional builder would consider a good idea.

[1320racer]

Originally Posted by SBillinson

There is no downside to an accusump.

There is, it doesn’t fix the root cause of low oil pressure which is due poor oil control. Hence it’s a band aid and should call into question one’s choice of engine builders IF said low oil pressure on deceleration and/or braking is a real concern.

That said, you and anyone else that choses to do so, need not justify your decision about your program to anyone and can “foolishly” spend your $ on and installing an accusump and it affects no one here but this thread isn’t about you and isn’t about an engine that turns 10,400rpm either!

Last, I have yet to have any professional engine builder tell me, suggest to me, that I need to use an accusump with their engine,

[SBillinson]

Suddenly, I'm reminded of another saying.

“Never argue with a fool. They'll drag you down to their level and beat you with experience.”

[1320racer]

Says a fool that thinks he knows

[Mark Ugrich]

Originally Posted by 1320racer

There is, it doesn’t fix the root cause of low oil pressure which is due poor oil control. Hence it’s a band aid and should call into question one’s choice of engine builders IF said low oil pressure on deceleration and/or braking is a real concern.

That said, you and anyone else that choses to do so, need not justify your decision about your program to anyone and can “foolishly” spend your $ on and installing an accusump and it affects no one here but this thread isn’t about you and isn’t about an engine that turns 10,400rpm either!

Last, I have yet to have any professional engine builder tell me, suggest to me, that I need to use an accusump with their engine,

Maybe you should have Mr. Reher build you an engine…….

[1320racer]

Mr. Reher hasn’t built an engine in years and I have no need for his services as my engines are built by 2 of the best in sportsman drag racing engines.

[David Lee]

Originally Posted by 1320racer

Mr. Reher hasn’t built an engine in years and I have no need for his services as my engines are built by 2 of the best in sportsman drag racing engines.

Logical fallacy, even if he has not built any in years does not discount his expertise. and who are these "mystery" builders?

[Coleydog]

I can understand both sides of this coin BUT a stocker has to use a factory type pan that was designed for STREET use. Only one ‘stock’ pan comes to mind that was made for racing, the swinging pickup Max Wedge pan. In other classes one can use the hot lick setup that doesn’t absolutely need an accusump IMO only.
Or the engine could be like my Toyota. I bought it thinking the timing chain was bad, drove it home (20 miles @ 60 mph) found out the crankcase was dry, no oil! Bad sending unit that leaked big time. Filled it up with oil, still driving 2000 miles later with NO issues. Must be good engines?!

[Mark Ugrich]

Originally Posted by 1320racer

Mr. Reher hasn’t built an engine in years and I have no need for his services as my engines are built by 2 of the best in sportsman drag racing engines.

No doubt there are many good engine builders out there.David Reher is in the top one percent.Perhaps you need his services and just don’t know it yet.

[CMcAllister]

Originally Posted by 1320racer

There is, it doesn’t fix the root cause of low oil pressure which is due poor oil control. Hence it’s a band aid and should call into question one’s choice of engine builders IF said low oil pressure on deceleration and/or braking is a real concern.

Has nothing to do with who built the engine and everything to do with the limitations of a wet sump pan built to fit a particular application, rulebook, etc, and the compromises that result. That and the fact that it takes a number of rotations to get the oil to all the parts under pressure after an engine has sat for awhile.

Maybe your guy has an exclusive pan design that no one else knows about that 100% keeps the pickup submerged. Or uses an oil additive that works as well as the BG MOA they use for that demonstration where they run a small block Chevy for 20 minutes with no oil pan. And it lives.

Point me to a prominent engine builder who has a good reason not to use one and I'll listen to what he has to say and weigh the options for myself.