RED MX5

Cthree, when I shift gears, the next gear is engaged before I release the clutch. That means the synchros have already done their work. If the CDV only affects clutch release,and they synchros have already done their work before the CDV comes into play, how does the CDV protect they synchros?

Billman250 belives that the CDV and heavier flywheel work together to allow enough slipage to keep the car in VTEC on the 1-2 shift. I personally think it looks more like a way to reduce damage during a money shift (the clutch engages slower, the heavier flywheel accelerates slower, and the two together they give a longer period of time for the driver to realize his mistake and get the clutch back in.

If there is any way the synchros are spared any work or wear, I can't see it, so how about filling me in?

cthree

nevermind, I was wrong. It was late I guess.

ShocK

Clutch B ghey valve, that thing is crap, all it does is slip you clutch until it melts. I spun the clutch from 3-4 pretty badly. If they couldnt gear the car to stay in v-tec they should have left the gearing alone. If your in competition road racing I think it would ulitmately hurt you, it makes it impossible to quick shift. daily and spirited driving with occasional HPDE its fine. If it were my car I'd rip it out with minimal miles on the clock.

And I couldnt even do a burnout in my buddies car, what fun is that?

RED MX5

I've done worse.

Orthonormal

I think the delay valve is in there more to prevent shocking the gear train (transmission and differential gears) and rear axles when the clutch engages too quickly. If the tires fail to slip, then the clutch will, instead of the gears going BANG as the tires stop the engine from rotating.

You'll notice the slipping in just about every gear if you mis-time your clutch release against your throttle application. Probably worse the higher the gear you're in, unless you're less aggressive and more precise when shifting into the higher gears.

It definitely doesn't prevent burnouts or prevent fast shifts though, just forces you to use proper technique if you want it to happen.

ShocK

I have fidanza and ACT street disc, I'll outshift you any time any day of the week. Your best for my worst. I think its crap. I pretty much despise it. I dropped the clutch at redline in an 06 and all it did was smoke the clutch, it smelled for 2 weeks. My buddy did say you have to be a lot more aggresive in your clutch release, thats stupid to me, I want it to grab, thats its job.

MinimumEntropy

Well, I've tried it twice more since my original post and it did it on 1st through 4th shifts. Just a little surprising since this 2.2 liter engine is stock and doesn't exactly have a great deal of torque. Kind of annoyed that Honda couldn't design this thing a little better. I've been power shifting my 1.8 liter Integra for 7-1/2 years on the original clutch and tranny at numerous track events (on R-compound tires!) and never experienced this before.

After doing a lot of reading, it seems that Honda has installed both a weak clutch and a weak differential in this car and this restriction orifice in the clutch release line is just a quick fix to cut down on warranty claims. Oh well... if I ever start tracking this car like I track my Integra now, I'll just have to put in a stronger clutch and, possibly, a stronger diff as well. Thank you all for the advice.