Sump Extension / Accusump?

[Ben]

Very interesting - though Dunk - you'll be adding weight with this

[duncan]

true - but car and/or driver protection is good weight

[benh]

I've got an accusump, we actually brought a few in from the US and i kept one for myself. My thoughts were to use it as an engine pre-luber on a new build engine. I thought it would be an excellent way to get oil to all the moving parts before the engine was even turned over. In the end i didnt use it for that as its incredibly difficult to fill it without a ready source of pressurised clean oil! I since fabricated a resevoir for clean oil with an air line connection to allow me to fill it.

In everyday use, i would get the electronic control valve, so you can turn it on and off as needed.

My only reservation on using it as a 'post luber' to just give the turbos that bit of help after shut down is that it will of course overfill the sump. On a lot of cars that doesnt matter, but on some where the crank sits low in the oil pan, the level may come up far enough that the crank will whip the oil up on start up. (an FTO would do this for example, not that its turbo'd anyway- but still)

I never permanantly fitted mine, but if i did, the way i would use it would be 50% post lube, 50% prelube on start up. I think the latter is where you will really help save engine wear.

Of course it will give you that extra insurance if you pull high latteral G's etc of keeping the engine fully lubed if for some reason it does suffer a momentary oil starvation.

Cheers,

Ben.

[323ian]

Does the trust sump extension have baffles in it as well then?
This would probably be the way i will go.
I know Nik Wilson had one on his R34.

Stu, do you have to change the oil in the accusump when you do an oil change?

[Stuart]

The kit I bought from Keith Cowie was

[323ian]

Maybe a group buy on one when the time comes.

[bimbleuk]

The Accusump is almost a standard fit option on the Striker kit car produced by RAW Engineering. Certainly since they've been fitting them I haven't heard of any more failures on track of the 4AGE Toyota engines commonly fitted. Their demo car was thrashed for several thousand track miles with no issues and used a standard sump, mine does have a baffled sump for extra safety. No issues encountered on the 1600cc 4AGE engines when the valve is left open.

One thing I have noted from reading all the Accusump installation instructions is that the standard ECV valve is not recommended for track use. This is because it has a quick emptying action but a slow re-fill rate. So on track the Accusump may not have time between corners to fully re-ill. So personally I've stuck with the manual valve mechanism as the more sophisticated ECV valves are damn expensive!

Usually on the Striker (and a lot of installations) the Accusump is plumbed in to the return line of an air/air oil cooler which connects to a sandwhich plate between the oil filter and block. Being one to experiment I've replaced the air/air oil cooler with a water/oil cooler and plumbed the Accusump directly to the exit gallery of the oil pump. Not exactly how it supposed to be done but I've doen some testing and I believe it'll work. Anyway I've fitted a huge 4 LED oil warning light above the sterrign wheel so I should have ample warning

This is an old picture of my install but it'll give some idea of scale at least. The sandwhich plate just appears between the two exhaust primaries. This is the smallest Accusump they do with 1 quart of oil in if I remember correctly.

[Stuart]

That looks like a nice install there, my only reservation being how far forward that is in the event of a front end hit (I suppose if you hit it that hard head on, you're in trouble anyway ) The glimpse of the block/engine looks superb!

[bimbleuk]

Having seen a Striker go up a bank and hit a tree head on last week on track the front end was surprisingly complete . Yes the chassis rails collapsed and the wheels were pushed back but the radiator was still sealed and no distortion of the driver/passenger area was evident!

That's my old engine the new one is a bit more bling. I would mount it somewhere else but the passenger might object to having it between theirs legs

[GTRJazz]

There is nothing wrong with the Tomei sump baffle they use it in all of their full engine rebuilds the top end of these units sell for