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Old 01-16-2001, 08:59 PM   #1
Scooby Specialist
Member#: 730
Join Date: Jan 2000
Question Oil and fuel starvation in tight turns? Are there baffled oil pans and fuel tanks?

Hey all,

I tried searching, but couldn't find anything conclusive, but I thought I remembered seeing a thread about oil aeration on some Impreza's running really sticky rubber on road courses.

Is this an issue with the Impreza? If so, does someone make a baffled oil pan to help counteract this effect?

Same with the fuel tank. I recall Jay_UK's description of his solution, a surge tank just downstream of the fuel tank to outlast the fuel deprivation that hard cornering produces.

I ask because I will need to replace the oil pan on my hybrid L, and if oil starvation is an issue, I'd like to address it right now before I get into a situation at a track event.

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Old 01-17-2001, 04:55 AM   #2
Scooby Specialist
Member#: 296
Join Date: Sep 1999
Location: Derby, Derbyshire, England

There are a few options available.

I have seen a larger capacity cast oil pan (with baffling). This costs about 600 dollars..

What I do for people is to strip the stock sump (removing the existing plates) and fit extra baffle plates inside.

As for fuel..you already know the solution.. A surge tank.. I am shipping one over for someone to test for me.. to see if it will fit..etc...

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Old 01-17-2001, 02:25 PM   #3
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Member#: 1477
Join Date: May 2000
Location: Cambridge, MA
2003 wrx wagon


Also for the oil starvation problem, there's a surge tank sold under the name Accusump, which essentially squeeze more oil into the system when oil pressure drops and takes it back when it rises. This may be a cheaper solution than a highly baffled pan.

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Old 01-17-2001, 04:15 PM   #4
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Chapter/Region: NWIC
Location: Seattle

rjones: doesn't Moroso make something similar?
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Old 01-17-2001, 04:58 PM   #5
Sean McElderry
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Member#: 526
Join Date: Nov 1999
Location: Beaverton, OR, USA
1995 Supra Turbo


Get the surge tank for your fuel problems. There's nothing I hated more than taking a hard right, uphill corner and having no fuel halfway through the corner. Then you gotta deal with that whole "spinning out of control" thing. What a pain.

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Old 01-17-2001, 05:30 PM   #6
Homicidal Maniac
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Join Date: Jun 2000
Location: Austin, TX
2008 STI


Jay_UK, I pm'd you.
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Old 01-17-2001, 09:01 PM   #7
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Join Date: Jan 2000

Does the Accusump also act as an engine pre and post oiler? I've heard of systems that save a half quart of oil and can pressurize the oil passages before the engine cranks over, and can also trickle feed cool oil to a hot turbo after shutdown.

Any links to the Accusump?

Jay, if you could PM me with part numbers or descriptions of the surge tank, I'd appreciate it.

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