Car Analogy

The logic here escapes me. Assuming it were true that less oil burns slower, then starting off with full oil would still give the advantage of taking longer to burn down to the danger level.

If you start full, and it burns faster, once it reached that halfway point, it would then burn at the slower rate, just like if you started with half. The difference is you had all that time before it got to half.

So even if it were true that less oil burned slower, you should still start off a track session full.

hoobastnk90

Yea prolly shouldn't be dumping that onto the track, im sure your other drivers would appreciate if you changed that.

engifineer

Fuel starvation is my guess. I have fuel starved at half a tank in mine autocrossing.

I dont think there is any mechanism that would cause it to cut power due to oil level. There isnt even an oil level sensor on this car as far as I know either (or mots cars). Just an oil pressure sensor. If it cuts power due to low oil, it will so in the form of a knock knock KNOCK KNOCK :P

s2000Junky

I tend to agree on the gas, however if your running high rpm on vtec cam and suddenly lose oil pressure from low oil and it knocks you back to primary cam, you will run lean and that could cause the engine to miss. Still not ruling it out. But a bit moot at this point, considering the OP knows how to correct both of these issues now. If it still happens on the next track day then he knows there is another unrelated issue.

B serious

I believe an S2000 that loses oil pressure on high cam will just result in a hard rev limit.

On older models (B/H/D cars), the ECU would just switch back to primary cam. I just happen to know.

s2000Junky

This is the symptom the OP described he experienced.

B serious

Yep. I was just replying to you:

Older engines just went back to primary cam with no other drama. You'd be at (lets say) 7500RPM...and you'd just note that VTEC wasn't working. Then, as the turn straightened out and the pickup reached the oil again, boom...you'd get VTEC back on again. No RPM drop. No misfire.

OP didn't say he lost power and noticed a miss. He noted a hard stop in engine power.

...I think the S2000 just turns power completey off (hard stop) til the engine RPM lowers back down.

We're both saying that lack of oil pressure is one of the possible reasons, though.