Sump Compatability

[Roy]

I am assuming that sumps on RB20s from an R32 GTSt and an R32 GTS4 can be swapped. Are sumps compatible between RB25 and RB20?

Looking for a sump option for an RB20 that wont mess with my swaybars

[Moodles2]

AWD sumps are different to RWD sumps

[Roy]

I understand they are different, but do tey have the same PCD to bolt to the blocks?

[D_Stirls]

The 4WD blocks have both the hole for the 4wd and 2wd sumps, but the 2wd blocks only have the holes for the 2wd sumps. Well that is the case with the 25s at least. i have a C34 engine sitting in the shed as the moment.

EDIT!!

Just read your first post again, this isn't what you were asking.

Edited November 11, 2009 by D_Stirls

[Roy]

But it helps, thanks! Was hoping i could get the alloy sump off a 4wd RB20 and use a GTR larger sump welded onto it and modded to suit RWD.

Not a big deal if i have to find an AWD RB@) block as well, although i was hoping to use my current block and engine number

[femno]

Custom M.S. RB20 sump? It wouldnt be that hard to make up. Than you could design it around your swaybars. Would be more work converting a AWD sump and still having to enlarge that too.

High Energy Sump? They make em for RB20s?

[bubba]

I got an ASR (they make the sumps for High Energy) sump for my 30. The only difference that I know of between an RB20/25 sump and a 30 sump are some bits that stick up in the shallow section of the pan need to be removed for use on a 30..

All the ASR/High Energy RB sumps now have the leading edge chamfer to clear the swaybar in skylines.

Mine isn't in the car yet but I can take some photos if you want

Edited November 12, 2009 by bubba

[Roy]

Please, at the moment i am thinking to jut mod a AWD RB sump as the person doing the build has a proven custom alloy sump that has served many a track RB, both RWD/AWD

[Sydneykid]

Please, at the moment i am thinking to jut mod a AWD RB sump as the person doing the build has a proven custom alloy sump that has served many a track RB, both RWD/AWD

Forget it Roy, they don't fit. The 4WD sump bolts up to the wider parts of the 4WD blocks that simply isn't there in on 2WD blocks. I have been using High Energy sumps for ~20 years, never had an oil surge problem at any track, anytime, anywhere in Australia. Don't fool yourself into thinking that a winged 4WD alloy sump is lighter than the steel High Energy one, because it isn't. On the 4WD the sump adds a little (not much) rigidity to the bottom of the block, but that is mostly due to the wide bolt up spacing, which is not an option on a 2WD block. If you really just must have a shiny alloy 4WD sump and desire a miniscule amount of block strengthening then a 4WD sump adaptor would do what you want. But you will loose the block lowering advantage, which IMHO is much more worthwhile.

Cheers

Gary

[Roy]

Well it looks like i will be buying a new block so the build can take place whilst my car is on the street so can just as easily buy a RB20 froma GTS4 as a GTSt.

The High Energy jobbies are uber dollars and have heard/read people with mixed results, so since i know of an RB28 in an R32 GTSt running a 4wd block and modified AWD sump with similar internals to all the sumps off RB26s...it seemed the best place to start.

I think i will rather stick with a std sump then go for High Energy as I am not convinced that i need one...but will have to see what dollars are left over at the end. Plus just got new swybars and know of people having troubles with aftermarket sumps and swaybars, i know that wont be the case with the modded alloy jobbie because of said RB28 powered GTSt

[bubba]

Mate, get the sump from ASR instead of High Energy.

ASR make the High Enery sumps and mine cost $400 less than HE wanted for the same thing.

What bad things have you heard about them? and were they just the extended capacity sumps? or the fully baffled/gated pro-circuit sumps?

As I said above, they now make them to clear the swaybars in our cars.

[battery]

i got a mate who's got a blown rb20 GTS4 engine if your looking for one.

[Roy]

If its cheap then could be. In SA? It looks as though i have already sourced an engine, (its a runner) If it falls through then a blown motor suits my needs better provided the head isnt warped from overheating or anything silly.

Will look into the ASR Sumps, though can nly find links to their products, not their website

[SLAPS]

RB30 sump Troy.. Make it go faster.

[Roy]

I like fried eggs, not tyres! RB20 all the way!

[blind_elk]

just as easily buy a RB20 froma GTS4 as a GTSt.

Guess who just happens to have a GTS4 block in the garage?

[Roy]

I remember you sayign you had one spare a long time ago and was likely to give you a call as you can never have too many RB20 blocks laying around. I am back in 1-2 week of Dec so will be picking stuff up then

[battery]

If its cheap then could be. In SA? It looks as though i have already sourced an engine, (its a runner) If it falls through then a blown motor suits my needs better provided the head isnt warped from overheating or anything silly.

Will look into the ASR Sumps, though can nly find links to their products, not their website

its in melb and would be dirt cheap, just pm me if you need his details.

[bubba]

Will look into the ASR Sumps, though can nly find links to their products, not their website

I think they're more of a supplier, I got mine through Justjap.