I was at an autocross yesterday for the first time in my '05 and at a few corners, I was sitting on the rev limiter for 3 or 4 seconds, coming into a corner. I ended up with a few quick laps and have a lot of experience autocrossing.

I'm just hoping Honda designed this motor to sit on the rev limiter going bap, bap, bap, bap, bap, bap for a good 3-5 seconds coming into certain autocross corners because it would take too much time to upshift and then downshift again for the corner.

Any real-world experience from someone who has a lot of miles and has ridden the rev limiter for years with no engine problems? I'm presuming it won't be a problem because I lived on the rev limiter with my '01 C5 and it's LS1 and I have a friend with an '04 Z06 who absolutely abuses his LS6 and it's rev limiter tracking the car all over the country (Laguna Seca, Road Atlanta, Texas World Speedway, etc.)

 

3 - 5 seconds sounds like a lot and it probably only seems that long. I have sat on it at 9K for a second or two a couple of times every lap at TWS and have done a couple hundred laps. No ill affects to my '00 thus far.

 

generally rev limiters also retard the timiing, that may have also helped.

 

I'm sure the motor can take it, but it's good to hear it from you guys. I started upshifting after the first couple passes as I decided it was quicker to upshift for 2 seconds and then downshift for the slalom.

 

don't forget when the rev limiter is on you are not producing much, if any, power.

 

Oh, I know. Zero acceleration when you're sitting on the rev limiter. It just that under certain autox situations, it's quicker to stay in the lower gear versus upshifting and then downshifting a second or two later.

 

Last RBS Grand Prix de Montreal in Quebec in june, the bristish star of Formula 1 Jenson Button blew a egine in Blainville Quebec. He drove to the extreme few laps ,cutoff in all corners , then after 10 donuts at end of his "show" ,that was the end for the engine . It was a 2005 brand new white S2000 borrowed from Honda Canada.
As you know a F-1 in his mind ,an engine least 1000 km no more no less so he was careless i think ,obviously.
So i think we re safe if we do it sometimes..

 

[QUOTE=QUIKAG,Jul 25 2005, 05:00 PM] I was at an autocross yesterday for the first time in my '05 and at a few corners, I was sitting on the rev limiter for 3 or 4 seconds, coming into a corner.

 

I would tend to agree. I can't imagine that it's doing the engine internals any good to be slamming off power, then back on power, then back off, then back on, etc., for any length of time.

Those of us who have hit the rev limiter hard have felt how much the car jolts during the process. Now try to imagine exactly what the pistons, rods, and crankshaft, not to mention the rest of the drive train, are going through that it's shaking the entire car that violently?

It might be justifiable for "very" brief periods (2 to 3 seconds of less?) while autocrossing or other competitive events but even in those situations, I'd try real hard not to make a habit of this if possible.

JMO!

Drive Safe,
Steve R.

 

Actually there seems to be two different types of limiters and one is more abrupt than the other. We have had a thread or two on this subject but I don't remember a conclusion.

Not sure when they cut in but one seems to be a full fuel cut and the other a staggered ignition (with maybe a fuel and timing adjustment thrown in). It is very abrupt when you get the fuel cut trying to rev before the car is warmed, and a totally different experience when you hit the limiter with a warm engine pulling in higher gears.

Does anyone have a link back to the discussions, or was there a solid conclusion reached?