alloy baffled sump

[harky]

could someone please enlighten me about the advantages of an alloy baffled sump apart from the obvious,its lighter i have no experience of the baffled side of it all.

what exactly is the baffles purpose apart from confusing me.

i have a 1700 x-flow and was looking at the advert on e-bay for the sump wondering if it would be worth getting.

if you were changing over to the alloy sump would there be anything else involved in the changeover or is it just a straight swap.

thanks.....................................................

[stu999]

Some cars have a problem of losing oil pressure when cornering or braking. with anything more than 'spirited' driving. This is due to the oil 'surging' to one side of the sump, and leaving the oil pick-up pipe in fresh air. As the engines internals prefer oil as opposed to fresh air, it can soon total the motor, hence the reason for baffles. These prevent the oil being thrown around the sump so easily, and thus preventing the pick-up pipe running dry.

If you tend to drive your car hard, then I guess it could be a good investment. You will probably have to change the pick-up pipe too. otherwise it *should* be a straight swap.

P.s. the alloy sump is not necessarily lighter....

Baffling, innit?

[S8ight]

ally is also meant to be better at dissipating heat. (did i spell that ok? )

[fordy]

Ive got this same sump on my car - and it certainly was NOT lighter than the pressed steel thing that came off - it was quite subsantial, it was shallower though - so less chance of grounding it on speed humps and stuff - If your going to do any track days, then baffled sump is a must i think - heavy braking on a dry track, and all your oil will end up at the front of the sump on an unbaffled unit - ive done a couple of track days and seen no drop in oil pressure when braking or cornering with this sump.

cheers

Chris

[neilb]

Make sure that you get the pickup pipe with the sump as it will probably be different to the standard one, as the sump is not as deep.

The sump can be changed with the engine in the car, I have done it, but it is not easy to get a good seal round the gearbox end so it is best done with the engine out and up-side down.

You may find that after you have changed the sump that you require more or less oil.  When you drain the sump save the oil, or at least measure it, see how far up the sump it comes when it's off, then see how much oil it takes to fill the new sump to the same level.

HTH

Neil

[harky]

thanks for all that.

i think thats all clearer in my head now.

i do intend to do track days next year so it probably would be a good idea.......  

[stew72]

Are standard RS2000 ally sumps baffled?

[Gazza]

I see the benefits of the cast alloy sumps as:

1) lower profile (so better ground clearance)

2) better baffling of the oil to keep the pick-up submerged

3) more oil capacity (because of its full-length design)

4) stiffens up the bottom end a tad as a positive by product of its sturdiness (read: weight!

5) lovely thick/stiff mounting flange - so no gasket leaks

6) and it just looks so nice compared to a battered tin one

Fordy,

Your sump is better than the e-bay one

- the baffling is better at the sides for corning 'protection', and the fins on the bottom make good skids - never mind the  cooling benefits

[fordy]

Fordy,

Your sump is better than the e-bay one

- the baffling is better at the sides for corning 'protection', and the fins on the bottom make good skids - never mind the  cooling benefits

I know, mine is nicer, but the ebay one still looks good.

Thanks again - it was a good purchase

Harky - I fitted mine with the engine in the car - its a little tricky, but doable - i wouldnt worry about it leaking (it wont) - get a decent sump gasket - use a little bit of silicone sealant aswell - the good thing about these sumps is they have very nice gasket facing edges - they make a much better seal than the tin ones.

[harky]

thanks fordy.

all i have to do is make sure my last minute bid is hgh enough.

cheers