Dry sump tank size? any dry sump gurus?

[FETorino]

I've never ran dry sump before and am trying to educate myself as much as possible before I start spending $$ on parts or just taking any vendors word as the gospel.

I've been doing some reading and too much thinking about my dry sump set up, where to mount the tank, what size lines, and what size tank.

Does anyone have any insight on sizing of the tank other than space considerations? Why choose a 5.5 gal tank over a 4.5 gal tank? It seems if you have the space a larger tank would be better to help evacuate the air in the oil and keep the temps cool.

Is there any reason not to run a 4.5 gal tank with a lower oil level to reduce oil puke vs say a 3 gal tank with the oil level closer to max?

The majority of the tank capacity at most times could be escaping air so it seems more tank capacity would be a good thing. As long as the oil level is above the baffle and the pickup completely immersed in oil your good right?

[Vegas69]

If you had hundreds of thousands to spend like OEM, you could figure out what keeps the engine happy temp wise on the street and track. You don't have that luxury so I'd over engineer and deal with the consequences.

[badmatt]

2 gallon under hood... 3gal+ in the trunk.

[FETorino]

Originally Posted by Vegas69

If you had hundreds of thousands to spend like OEM, you could figure out what keeps the engine happy temp wise on the street and track. You don't have that luxury so I'd over engineer and deal with the consequences.

I'm with you on that. I'm just not sure what is over engineered vs just enough at this point.

I'll be bugging Dailey on Mon since I'm going with his pump and pan and do some more reading. Aviad usually packages a 3 gal tank with their systems. I see a lot of NASCAR tanks for sale that are 4.5 gal. I figured someone here has some track miles with a set up that would give me a baseline.

[FETorino]

Originally Posted by badmatt

2 gallon under hood... 3gal+ in the trunk.

Interesting. Why would the tank in the trunk be bigger. I know the recommendation is to run a larger line to the trunk.

[badmatt]

Originally Posted by FETorino

Interesting. Why would the tank in the trunk be bigger. I know the recommendation is to run a larger line to the trunk.

added security IMO oil has a farther distance to move.

and the bling factor is upped 10 fold.

Matt

[Flash68]

I had the same questions when I was researching this heavily recently.

Originally Posted by FETorino

Is there any reason not to run a 4.5 gal tank with a lower oil level to reduce oil puke vs say a 3 gal tank with the oil level closer to max?

I believe you are supposed to never run a tank at or near full capacity? Pretty sure I read that as the norm. Did you find info to the contrary?

[badmatt]

Originally Posted by Flash68

I had the same questions when I was researching this heavily recently.



I believe you are supposed to never run a tank at or near full capacity? Pretty sure I read that as the norm. Did you find info to the contrary?

I was told 2/3rds to 3/4 full... from lots of different places

[FETorino]

Originally Posted by Flash68

I had the same questions when I was researching this heavily recently.



I believe you are supposed to never run a tank at or near full capacity? Pretty sure I read that as the norm. Did you find info to the contrary?

No I had read to reduce the oil level if it was puking a lot out the breather. My thought is that with a bigger tank it would be less sensitive to this.

[Flash68]

Originally Posted by badmatt

I was told 2/3rds to 3/4 full... from lots of different places

Originally Posted by FETorino

No I had read to reduce the oil level if it was puking a lot out the breather. My thought is that with a bigger tank it would be less sensitive to this.

Makes sense to me.