I guess me asking for facts is irrational... You can't gain my respect that you so desire by spouting BS.

 

No, smaller than the GT3 type. Very, very small. like 9lbs.

Car is holding up fine. No issues from a power standpoint, though the cup flywheel tends to give non cup cars misfire codes apparently from the crank sensor not being able to see the teeth on the smaller flywheel. I think that's how it was explained to me. Anyways, has not affected power. And that clutch alone is worth .5-1 second even over my clutchmasters clutch with 964 RS flywheel.

 

I don't lug my car with larger turbos especially. It lives above 3k for the most part

 

HC, the half second to one second difference, is that on something like VIR? Also, how does that FW feel on the street compared to the gt3 fw? My lwfw has me reving up at every light to prevent stall.

 

If you are going from high revs and press in the clutch pedal, car stalls unless you are downshifting and blipping. Completely caught me off guard the first time it happened to me. It revs so fast, it's insane, but it loses revs equally as fast and the Turbo's ecu cannot keep up.

.5-1 seconds on a normal 2.5mile track like Road Atlanta. Probably more at VIR. I ran a 1:28.3 on old A6's (15+HC) with the old clutch and a 1:27.5 on equally as old A6's with the new clutch, and the clutch was the only change (with about 30 lbs to go with it). I didn't get a chance to run the new clutch on sticker tires but the the old clutch went 27.1 on stickers the next session after the 28.3 and that lap had some traffic that cost me pretty good. Going by that, the new clutch should be mid-low 26's on stickers. Will see in December I hope.

Mind you, the old clutch was a clutchmasters stage 3, a great clutch on it's own, but more for drag racing so to speak that specifically for road racing. I imagine it's worth 2+ seconds over a stock clutch easy.

 

Thanks for the info. I never would have imagined that kind of improvement just from a clutch. Impressive. I remember reading or hearing somewhere that the GT3 ecu programing has a higher resolution(more bytes) than the Turbo, maybe it is for the control of the lighter FW with it's faster rpm changes, as you stated.

 

just went through as much of the 996tt/gt2 repair manual as I could on pdf and searched under rpm, recommended and other terms. Nothing about RPM needing to be high for the engine.

 

i would think anyone that drives the car kind of knows that intuitively, but this thread obviously suggests differently. for me it's one of the main advantages of this car over other similarly powered cars; and that's its "driveability". yet it's instantly capable of breaking the "basic speed law".

i just followed a cop for 12 miles in a canyon.. at btw 2 & 2.5k rpm. again, no problem

 

I don't think it's intuitive that if you don't run engine at 3k rpm or higher there will be problems. I have never heard of a limitation like that in any car I have owned including high rpm engines like M5 V10's. Even though I just happen to drive my cars like that, I would never have thought that lugging around at 2000-2400 rpm would be bad. And this is definitely the first I have heard of it.

 

i was agreeing with you, when you mention you find nothing in porsche ( or anyone's for that matter ) literature that might support the notion that driving under 3000rpm regularly might in some way be harmful to the engine. my take on that was, and is, that it's intuitive, at least to me, that it is not. harmful, that is.

forgive me if i was misunderstood. i think upon re-reading my reply to you, you'll find we are in accord on the topic. i blame my convoluted syntax. again, my bad.

 

I actually took a play from the corvette guys book, they have been doing this for years now. Lighter clutches give the big gains on corner exit because of much quicker throttle response. It doesn't show up on the Dyno but it does on the data. The trade off is much less durability. You cant slip these clutches much or they burn up. I bought a winch to load mine on the trailer and kept my clutch master as a backup.

 

Sorry. My misunderstanding. We are in accord.

 

Interesting Dez....do you have part numbers ? How many miles on this system do you have ?

 

Sounds like the cgt flywheel. But much cheaper. Lol

 

I'll ask my mechanics about part numbers. I don't know much about the cgt clutch but I have the exact same clutch as the 997 cups minus the ones that get the carbon version of it. In fact my lwfw came off a cup that switched to something else. It's about a $2500 clutch so not much different than the other high end clutches. This one can be rebuilt as well once it starts to slip.

Mine only has about 600 miles on it so far. Definitely not a street clutch, but the drivability isn't really bad at all, actually friendlier than my clutchmaster.