baffled sump for the track ?? - Honda Prelude Forum

fastfu · 01-21-2005, 06:03 PM

over here in the u.k there is a big tread going on after someone trashed their engine because of oil starvation.

now everyone is saying do use your car on a track unless you have a baffled sump.

so i thought i'd ask your opinion on this
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71dsp · 01-21-2005, 06:28 PM

There are many Preludes that are track driven without too much trouble. DR is one (5Gen in ITS and HC), and Corey Jacobs (HC). I will hopefully be running in HC this year.

monk3y · 01-21-2005, 10:08 PM

i was just at willow springs today and i only had oil starve issues in one corner (actually a linked corner, L-R). the car hesitated if i held it in second, at redline, and wouldn't hesitate if i short shifted to 3rd. Vwong reported the same phenomenon in a different corner.

we both overfilled the crankcase by oh, 1/3 of a quart.

paulyg · 01-22-2005, 01:23 PM

All of the people who frequently road race Preludes seem to experience oil starvation at one time or another. I believe it is a problem, but no one makes a proper oil pan or drop in baffle for the H22.

LowFlyin' · 01-22-2005, 01:26 PM

Would it be something a machine shop could do? Like if you had a spare pan to let them have?

Would it be good to supply them with a sump, too?

ludehawk · 01-22-2005, 02:39 PM

I always run a full qt over without a problem.
I also tend to run a lighter weight of oil at the same time *shrug*

I never had a drop in oil pressure that posed a serious risk to the engine, let alone enough to throw the car out of vtec.

LowFlyin' · 01-22-2005, 03:07 PM

The only time I have noticed it was during a long left sweeper...and I only experienced it when the oil level was below the top fill line.

ludehawk · 01-22-2005, 03:10 PM

^^ exactly!

Running 20-30 minute sessions, even on a 20degree bank, you should never lose so much oil near the collector to starve.... I did notice that if I was JUST at the full mark, I would cut out of vtec when I was in a left sweeper. this is compounded if you go through a right > left kink. But then again, I had lost just enough pressure for the VTEC pressure switch to cut out...

nacho_man · 01-25-2005, 07:14 AM

I think Moroso and OBX make baffled oil pans for Preludes. Not too sure if they actually work though.

71dsp · 01-25-2005, 07:37 AM

Quote:

Originally Posted by nacho_man

I think Moroso and OBX make baffled oil pans for Preludes. Not too sure if they actually work though.

They're supposedly geared towards drag racing, although I have thought about buying a Moroso pan and modifying it for road race use.

DR · 01-25-2005, 10:24 AM

Quote:

Originally Posted by 71dsp

They're supposedly geared towards drag racing, although I have thought about buying a Moroso pan and modifying it for road race use.

I thought the Moroso pan doesn't fit the 5th gen.

paulyg · 02-04-2005, 11:21 AM

Quote:

Originally Posted by ludehawk

... I did notice that if I was JUST at the full mark, I would cut out of vtec when I was in a left sweeper. this is compounded if you go through a right > left kink. But then again, I had lost just enough pressure for the VTEC pressure switch to cut out...

I'm giving this discussion a bump. See, to me that is a problem, if you have to keep the oil overfilled and even at full may experience a loss of pressure. Plus how do you know how much oil pressure you lost. You could have run the sump dry during the period when you lost VTEC.

It seems to me that this situation could be remedied with a simple plate and swinging door to keep the oil from running out of the deep portion of the pan into the shallow part. If I had a spare pan and a welder I'd make a prototype.

DR: I think the Moroso pan will fit on base 5th gens, but not SH models b/c the pan has a "kicked out sump" that gives it more capacity. The SH may not have room for the kicked out portion b/c of the ATTS being in the way.

DR · 02-04-2005, 12:08 PM

I think Billy bought a Moroso way back when the first came out and he found that it didn't fit on the base 5th gen without modification to the lower engine brace.

71dsp · 02-04-2005, 12:21 PM

It'll fit, but you'll have to modify the flywheel cover (engine stiffener in the Helms).

bdb · 02-04-2005, 09:20 PM

Have we completely dropped the idea of getting Z10 to make us a batch of H22 pans?

The stock 5th gen aluminum pan is nowhere as easy to baffle as say a B18 since it has a bunch of internal bracing in a cast aluminum pan.