SleepyFish

Not sure if anyone else has experienced this, but I'm getting some power loss at one of the corners in Sebring. The funny thing is it always happens at the same spot. I'm approaching red-line in 3rd gear and the car feels like it hits the rev-limiter and cuts back power. I look at the tach and it's only around 6500 rpm. The only thing I can think of is that the car is at or near the peak lateral G forces for the corner or something. It also happens at another corner of the track while I'm accelerating in 2nd gear. It pulls to red-line at corner exit and in the straights just fine. I usually short shift at this particular corner to keep this from happening. Fuel level is normal (above 1/2 tank) and oil level seems ok. Bone stock motor on a 2000 SH. Any ideas?

paulyg

Sounds like oil starvation. If the pressure to the VTEC system drops below a certain level the ECU will cut power/take you out of VTEC. This has been known to happen on long left handers were the oil "climbs" out of the sump part of the oil pan. Most of us are over filling the oil to avoid this. Be very careful, several members have blown engines due to oil starvation at the track.

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Paul
2009 Mazdaspeed3 | 1995 Miata | 1999 Crystal Blue Base - bought 6/13/02, sold 3/11/09

LowFlyin'

Quoted for truth...I ran my car a 1/4 quart over the fill mark at the track.

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Chris @ DeatschWerks (Fuel Nerd)
1991 CRX SiR
1991 Civic Wagon RT4WD

Honda318dx

I run 6 quarts plus a baffled pan, it still happens in really crazy maneuvers. Accusumps are needed in H series engines.

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Corey Jacobs
1993 Prelude VTEC
Honda-Challenge H1

Keith

I run about half a quart extra... but yeah, sounds like you are running in and out of VTEC due to oil.

Keith

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SleepyFish

Thanks for the info. Makes sense to me since it seems to happen at high revs during high lateral manuevers. Guess I'll overfill it a little bit to be safe.

Demonlude

If you're running at the track regularly, you'd be well advised to get a baffle welded into the sump. Something simple can still be very effective.

JustXtreme

do you track with chin motorsports?
is this your car?
There not great pictures but what r u gong to do.

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71dsp

We tried welding in a baffle around the sump pickup with little success. Have you tried it with different results?

Demonlude

I'm just using this at the moment.....



I've only just got round to fitting it, but I know other people that have used the same design, and not had any problems. Although this isn't a guarantee that problems won't arise. What was the problem that gave you little success on yours?

I guess only time will tell really.

71dsp

Ours is very similar, but I used larger drain back holes closer to the pickup. I was concerned with the pickup going dry at high RPMs if there wasn't adequate drainage.

Next I think we're going to try trap doors, whenever I can get around to that. I have the trap doors, I just need to do the baffle fab work.

marcucci

I agree that the pan as pictured LOOKS like it would not provide adequate drainback, but... that's just my opinion.

As already suggested, I would bump the fill by 1/4 or even 1/2 quart. I also would recommend doing something NOW about it. I hypothesize that DR's failure was not due to any singular episode of starvation but repeated "slight" starvation over the years. Again- just MHO but worth the insurance of a sooner-rather-than-later approach.