Rb Sumps- Custom, Off Shelf, Back Yard Jobs

[humz]

okay while my 25-30 is being rebuild i thought it would be a good idea to put in a custom sump, with baffles, and a larger volume.

i can send it into adelaide and they modify it with a hi-energy sump but its 700bux. i wanted to make my own.

anyone have detailed pics of what theirs looks like or any advice in general would be greatly appreciated

thanx

[Craved]

i have often thought of this myself, want to make my own alluminium one but was considering the some of the above questions.

[humz]

dont be shy folks who are more gifted with rb knowledge than others, thats 2 people now who are tight ass and wona do theyre own sump

[R31Nismoid]

Whats wrong with using the stock one? (rb26 that is)

[Sayajin]

Well for reference, here are a few shots of what my custom RB30 sump looks like under construction.

-Sayajin

[humz]

nice sump mate, good to see rb30 in the states (dont forget to tell eveyone where the block cam from

got any pics of the baffles also.

the rb26 sump would need an extra mod to rid the front shafts- so thats one reason not to.

what sorta baffles do they have inside??

also wouldnt the stroke of the 30 hit the standard baffles on the sump??

[r33_racer]

Funny someone should mention this as im in the process of fabricating an ally dry sump pan at the moment. Different to a normal gated sump with extra capacity, just a very shallow pan with a few valleys for the two pickups for the pump. When i get closer to finishing it ill get a few shots of it and pop em up. At the moment ive only got the flange cut out, and other peoples paying jobs come first unfortunately. If only there were more hours in the day

[sky30]

Im also interested, anyone go pics of baffle with one way doors around the oil pickup??

[R31Nismoid]

the rb26 sump would need an extra mod to rid the front shafts- so thats one reason not to.

what sorta baffles do they have inside??

also wouldnt the stroke of the 30 hit the standard baffles on the sump??

Not sure about the stroke, someone will know that

Yeah, its no big drama to remove the front diff.

Mine was done in that manner.

When 350-400rwkw GTRs run around here in melb with the stock sump on semi's...

That kinda tells me the stock sump works quite well and would be good for 99% of setups out there

[Adriano]

Rb30 crank clears the rb26 sump, as there is an adapter plate between the block and the sump, which spaces it away. Nice sump Sayajin, looks exactly the same as mine that im making, just need the oil pickup

[Craved]

remember reading the rb25 sump will hit as it has the 3 fins under cyls 4,5 and 6

[T04GTR]

yeah they dont have the windage tray that bolts to the girdle. with out that omg oil surge and blowby lol.

[Risking]

Im with Nismoid. Why bother with a big dollar or even custom sump when the OEM item with the diff removed and baffles fitted with sufice perfectly.

If you fit an oil cooler you have increased the volume slightly and honestly if your going all out ditch the sump and use a dry set-up straight up.

Greg's S15 with the RB26 fitted runs a factory sump and has no issues whats so ever and Id garantee it takes a lot more circuit abuse than 90% of the other cars getting around.

[T04GTR]

nothey dont lol.

read 2 LITRES EXTA OIL NEEDED TO STOP SURGE AT WAKIE.

[T04GTR]

OH. and thats cos i actully look at the aftermarket oil pressure guage when cornering hard. namly left handers.

[T04GTR]

if you have an AFTERMARKET oil pressure guage either mechical or eletric you will see exacly how bad it is.

[Omurru]

From cubes DOHC guide: Grind off the RB20/25/26 fins towards the back of the sump, the rb30 crank and rods have a longer throw and will foul. The RB30 sump has no clearance issues in the R32/33 Skylines.

My car has the standard RB26 sump with a tomei sump baffle in it and no issues to date what so ever with oil pickup.

Have included some random pics I have on my computer of a custom sump for an RB, I like the design of this one....

[Risking]

Dave you have any form of aftermarket sump baffles fitted???

We run tomei baffles in all of out RB26's and never have any problem with surging. Ive got guage in my GTR and after 100's of wakfield laps, oran park and eastern creek laps Ive not once seen a fluctuation in oil pressure.

I usualy over fill by a litre anyways but only because the thing still leaks out the crank seal when it gets really hot.

[T04GTR]

haha. jeah. oil leaks are anm issue lol. rust protection i say. but thats just 240000km of love

and no i dont its stock. but when i had my dr30 with a 26 in it and the baffel (tomie) i had these issues.

[Risking]

I gave up on the leaks. Just let them go. Only leaks out the Crank seal after a few hard laps when the oil thins out and everything gets really hot so meh.