I thought it would be a FAQ in here or the street encounters but i failed to find the thread. a link or direction would be greatly appreciated

 

Bogging will kill your gears, and the clutch in this car will burn, so drop the clutch at high enough revs to spin the wheels.

If the engine speed does not match the road speed (as it tends not to when your road speed is zero), something needs to absorb the difference in energy when you complete the connection between the engine and wheels/road. In most cars, you would slip the clutch and the energy would be converted to heat by the friction of the disc on the flywheel. With the high revs on our car, this ends in disaster. Slipping the clutch causes it to overheat, which causes it to slip more, which causes it to overheat more, which causes it to slip more, which causes - well, you get the picture. You need to side step the clutch, engage it as fast as you can.

However, if you sidestep and still bog, that just means your diff ate the excess energy. It dissipated the energy by grinding little shavings of metal of your gears...also obviously not what you want to be doing (or the transmission, drive shaft, halfshafts, or other parts of your driveline could take the energy, probably whatever is the weakest link). Therefore, you must also drop the clutch at high enough revs to break the traction on the tires. Keep in mind this speed (in rpms) varies a lot depending on track and tire conditions (but it must be at least in VTEC).

If you do it correctly, your car will accelerate while you engine decelerates until the speeds match (wheelspin stops), with the engine speed still being in VTEC. Then your engine and car will accelerate and you'll be on your way!

 

What a good description... and also the best argument to not use this car for drag racing!

 

Ok, I recently had it stuffed back into my face when I made a misstatement so let me ask this time - how does bogging cause gear wear more than just driving around? I've never heard of diff gear wear due to this issue.

 

[QUOTE=jguerdat,Aug 2 2007, 08:06 AM]Ok, I recently had it stuffed back into my face when I made a misstatement so let me ask this time - how does bogging cause gear wear more than just driving around?

 

to you on that description. I understand that the force the engine creates must be released somewhere. best to have it free'd at the tires than the drive train... completely understood. If there is a sticky on this matter i vote 1 for adding that description to it. thanks again

 

Exactly. Ideally, the energy would be converted to heat through friction in the clutch, and the heat would be bled off to the ambient air, and you could both maintain traction and your intact driveline. The design of the S2000 clutch, however, does not allow enough heat transfer to keep the clutch from frying and losing grip (and creating an awful smell) given how high it revs.

Unfortunately, this means the tires are spinning, and a lot of street tires will get overheated this way and loose traction (though some race tires can even benefit from it). The tires will regain their traction much easier than the clutch will regain it's grip, not to mention if you really get it wrong, tires are easier to replace than clutches, so this is the lesser of two evils.

Our high revving sportbike cousins combat this problem using a wet clutch. The clutch is actually submerged in engine oil which cools it enough to take heat generated by the high speeds.