Do i need a Deep Sump Oil Pan?

[87we410877]

At what point do you need a deep sump oil pan? Im building the motor to make 700HP. I have a high volume oil pump. Some mustang guru told me ide blow it up the first time i hit 6 grand because of lack of oil to the bearings w/o a deep sump. Any help would be great. Thanks.

 

[441120]

I'm not an expert but these engines don't rev very high, they do most of their work with torque. Mustangs have no torque and must rev for power.
Deep sump pan can't hurt anything except ground clearance

 

[tom h]

isnt there a risk that a really hard launch would uncover the oil pickup tube, sucking air, as the fluid sloshes backward ?

Consider: even a 2-sec 60-foot, is an average acceleration of about 1G.

1G acceleration will cause the surface of a low viscosity fluid in a tank to momentarily tilt to a 45º angle. Of course, oil is sticky and viscous, and doesnt even the stock oil pan have some sort of baffling to help prevent this ?

Anyway, my point is that readily achievabale 60ft times (1.6-2.0 sec) might be causing more backward sloshing of oil and tranny fluid than is realized. But I dont have much practical experience in this subject.

 

[Ormand]

The oil pickup on a Buick is not at the front of the engine, like a moostang. It's more in the middle. And there are a lot of people running much quicker than 2 second 60 foot times using the stock oil pan. There are deep sump pans available, but they are not needed. Some people run extra fluid in the trans pan to make sure it keeps the filter covered. Not sure about the amount, but I think it is one can of fluid.

 

[87we410877]

So you guys dont think i need one?

 

[87we410877]

How about some input from the guys who have these?

 

[Googs]

I have a deep sump pan. I'm running it because it gives me better cooling, less dedris is recirculated, & better long term lubrication. The pick up isn't an issue with the RJC pans, they come with a pic up extention.

 

[Marc87GN]

I also installed the RJC deep sump pan on my Grooms block for the added insurance. It was a little tougher getting the engine in over the cross member without hitting the pan, but that's the only downside I can see. Also get their much thicker pan gasket. There are alot of things we don't NEED to do, but some things just make sense to do when you have an engine out or plan to run it as hard as you are. Also as mentioned, the pan comes with a billet pick-up extension(2 I believe - one if you have a girdle) and the baffle plate like the stock pan.

 

[87we410877]

I also installed the RJC deep sump pan on my Grooms block for the added insurance. It was a little tougher getting the engine in over the cross member without hitting the pan, but that's the only downside I can see. Also get their much thicker pan gasket. There are alot of things we don't NEED to do, but some things just make sense to do when you have an engine out or plan to run it as hard as you are. Also as mentioned, the pan comes with a billet pick-up extension(2 I believe - one if you have a girdle) and the baffle plate like the stock pan.

Yes they do come with the extension but you must specify which one you need(gurdle or not) I think im going to do it. Can hurt anything but the wallet. Thanks .

 

[Greasemonkey]

I've got a Lee Thompson deep pan. I picked one up because I was missing the original baffled pan and figured why not spend a couple more bucks for a deep pan. It was a little more difficult getting the engine back in, but not much. He also supplied a modifed pickup. With a pf24 and the pan the car takes 7 qts to fill up.

 

[Ormand]

If you're building for 700 hp, you definitely need the girdle. And since it goes between the block and the pan, it provides some additional volume and depth- not sure how much.

 

[tom h]

As I am a newbie in these matters, what are you all saying is the chief benefit of the deep pan?

to keep the pickup from being uncovered during hard acceleration?

or to keep the sump from running dry when with a high volume pump at high RPM, when many quarts of oil might be in the upper half of the engine?

 

[87we410877]

If you're building for 700 hp, you definitely need the girdle. And since it goes between the block and the pan, it provides some additional volume and depth- not sure how much.

I have the gurdle and 4 caps w/ all forged internals.

 

[87we410877]

As I am a newbie in these matters, what are you all saying is the chief benefit of the deep pan?

to keep the pickup from being uncovered during hard acceleration?

or to keep the sump from running dry when with a high volume pump at high RPM, when many quarts of oil might be in the upper half of the engine?

This is what im wondering.

 

[Jeff Rand]

I also have a RJC deep pan. I found a drop in oil pressure at the end of the 1/4 mile run where the oil pressure would drop to zero upon deceleration (using the stock pan with extra baffles). If you use the RJC pan, check the spot welds on the baffle; on mine they came apart and it was hitting the crank. Also if you use a stroker crank, you will have to remove the baffle and position it lower in order the clear the counterweights on the crank.
Good Luck,
Jeff