Pressure Plates. OEM, DP, Aftermarket. Weights, Performance.

[koko64]

Saw DP pressure plate on special at the local dealer. A good price and real pretty.

Not that bling mattered because I run an oem cover, to reduce noise and provide crash protection.

However, it weighed a lot more than a stock oem plate. I could tell as soon as I picked it up.  I note that some billet aftermarket pressure plates have excess material machined off and rely on material quality and design to provide ridgity and light weight.

There's performance and there's bling. Since I run an oem cover, the looks of the pressure plate aren't important. I run a Vee Two drum and basket, Barnett plates and TPO springs. That has reduced rotating mass nearly 2 kilos. If I were to change pressure plates, what would be a lighter than oem recommendation?

So how do the various pressure plates on the market rate in weight and performance, wear and tear? Does anyone notice an improvement in clutch feel and actuation? Do some stand up to hard use better than others?

Cheers.

[Buckethead]

Just from a "there doesn't seem to be much there" perspective, I'd wager the Rizoma Star plate is pretty light.



I'll bust out the scales tomorrow to compare it with the stocker and report back.

Keep in mind, however, that if you're looking to reduce rotating mass in the engine/trans, the best bang for the buck is probably gonna come from the flywheel.

[koko64]

Got a kilo off the flywheel .

[Buckethead]

That's a good start. 

http://www.ducatimonsterforum.org/index.php?topic=16603.0

[koko64]

I remember that thread.
.

I have dropped about 15 kilos off my bike in total, just by replacing heavy oem parts with light aftermarket when I saw a bargain. Eg. ,I got the Vee Two clutch and cam pulleys when they shut down.

I also removed steel brackets, alloy brackets for oem, drilled brackets, air box mods, carbon for plastic, replaced bolts with alloy or Ti., Termis saved 3 kgs, Shorai saved 5kgs from original old oem, etc. I'm sure it's a registered illness in the DSM4 manual!

The big ones I haven't done are wheels and tank because of cost and timing gears because of hassle. But you never know, next big rebuild or wheel runout sale.

[ducpainter]

I remember that thread.
.

I have dropped about 15 kilos off my bike in total, just by replacing heavy oem parts with light aftermarket when I saw a bargain. Eg. ,I got the Vee Two clutch and cam pulleys when they shut down.

I also removed steel brackets, alloy brackets for oem, drilled brackets, air box mods, carbon for plastic, replaced bolts with alloy or Ti., Termis saved 3 kgs, Shorai saved 5kgs from original old oem, etc. I'm sure it's a registered illness in the DSM4 manual!

The big ones I haven't done are wheels and tank because of cost and timing gears because of hassle. But you never know, next big rebuild or wheel runout sale.

Do the wheels.

It will transform the bike.

[koko64]

Did you get light wheels?

[ducpainter]

Did you get light wheels?

I did on the 996.

My street riding days are pretty much over...too dangerous. I only get out a few times each season these days.

I'm not going to spend that kind of money on the monster at this point

[koko64]

Fair enough. Specially with kids to feed and educate. Wheels are at the bottom of my wish list, (unless there's a bargain to be had).

At 22K for an Evo with DP pipes/ECU down here, I'm tarting up the old girl and keeping her rather than trading her. I'm quite happy with where she is at present. Suspension, comfort, brakes and clutch are done as are cosmetics. Next rebuild will be 944 and 44mm inlet valves and more porting to suit.

Light wheels would be icing on the cake.

I checked Motowheels site and checked pressure plate weights via the shipping button. The full circumference NGR and STM plates were 1 pound shipping but some of the fancier plates were up to two pounds shipping.  Some of the star plates were heavier, surprisingly, but they needed more material to get the rigidity. From a performance point of view I would prefer a full circumference plate to spread the load over the full face of the driven plates in the stack.

I run a painted stocker.

Any weights of certain brands would be welcome.

[sofadriver]

I run a Vee Two drum and basket, Barnett plates and TPO springs. That has reduced rotating mass nearly 2 kilos.

(PLUS a lightened flywheel and pressure plate)

That's an impressive weight loss.
What do you figure your butt-dyno is going to tell you with these upgrades?

[koko64]

You do get off the corners quicker, it all helps acceleration and engine response.
There are members who have gone alot further than I have, with light cranks and conrods, etc. Oh and light wheels, carbon tanks, Ti axles, etc.