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JUN RB26 Sump baffle

YO880
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YO880 Mentor

YO880

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Basically the GTR Sumps where designed badly for race track use, it relates to the placement of the front differential.

On a race track, the costant excessive cornering, can (and usually this is just a matter of time) cause oil starvation on an unbaffled GTR engine. Basically the oil in the sump sloshes around, and for some time period, there is a HUGE danger that the oil pickup will not pickup any oil.. this combined with the usually high RPM's, causes instant death to your engine.. (and a $6k+ rebuild :)) remember, @6000rpm, that equals 100rpm's per second, just 2 seconds of lack of oil can mean 200 revolutions of no lubrication :(

i am not being alarmist either, it seems to be the case that if you run an unbaffled GTR on the track, you are playing russian roulette, some GTR's can blow on the 1st or 2nd lap (usually when you start taking the corners with gusto :P) or you may get through unharmed (but it always seems to be a matter of time!)

basically the only proper solution is to install a oil sump baffle, in combonation with a tomei oil restrictor to the oil gallery in the head, to ensure proper oil flow..

do a search here on SAU for GTR and sump Baffle.. you will read many many horror stories...

scary stuff!

People seem to think that just because the GTR is an awesome road car, it was built specifically to race on the track, this is not the case!

ocean Rising Star

ocean

Posted
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Very interesting, i have had a similar problem in the past with a mini..

When my car arrives (5 or 6 weeks) i will need to see if this modification has already been done, if not i will definitely be buying some form of sump baffle.

so a Tomei restrictor restricts oil going up to the head? does the head get too much oil normally or something like that?

-Patrick

YO880 Mentor

YO880

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yep, it is a little pill that you fit into the oil gallery on the block (you have to take the head off), this reduces the oil by about a 1/4 (1.5mm from 2mm)

http://www.tomei-p.co.jp/_2003web-catalogu...l-lub_rset.html

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