High Performance Clutch Test

[Advancedynamix]

The b3 VAF is practically identical to the b6ze miata vaf. In fact, Dragonhealer swapped a festiva VAF onto a miata on the dyno and made slightly more hp than the miata vaf. That was probably just a calibration difference, but it proved the point. The Festiva VAF isn't a restriction until somewhere around 140ft.lbs of tq.
In fact, the entire b3 fuel injection system is very similar to the 1.6L Miata system. The biggest difference is the ignition system. However, the festiva has sequential spark ignition, whilst the miata is wasted spark. Sequential spark is better for boost because there is less chance of burning exhaust valves under boost. With that said, in thoery the Festiva engine management system should be better suited to run boost than the miata system. The same tricks that they use to turbo the 1.6 miata will work on a Festiva.
Let's move this type of discussion to the DOHC B6 thread though, to keep things organized.

[sc72]

Good morning, do I believe that I glazed a Spec clutch disc from all that B6d HP probably not but I do think there is a quality problem, maybe some bad disc material or maybe I received the wrong pressure plate who knows but their customer service was not what I expected, so with that in mind I'm looking somewhere else for my clutch parts.

[Advancedynamix]

Did your pressure plate require noticably more pedal effort to disengage than the original festiva clutch?

Also, what did you use for a flywheel? I cut mine with the same surface finish as the spec pressure plate. I've learned that trick throughout the years. Too smooth a flywheel will glaze a clutch disk quickly.

[sketchman]

I just sand my flywheels. It's never caused an issue on at least 4 installs that I can remember. Mine still grips fine too. Just annoying.

[Advancedynamix]

I just sand my flywheels. It's never caused an issue on at least 4 installs that I can remember. Mine still grips fine too. Just annoying.

Yeah, I've done that too. 60 grit Sanding disk on a 90 die grinder usually does the trick, when I don't have a lathe handy. Lol

[eurotiva]

Another reason to do the act swift clutch mod

[shadetree]

I used spec clutches for a few builds and will never buy another . I'm with Greg the swift clutch is a good option . Ian just gave one away in the for sale ,not long ago .

[Advancedynamix]

Yup, Dragonhealer has it. It would be nice to have a bolt in option for those of us who just want a little more clamping force. For turbo, the swift clutch is probably the better option, since it's bigger and there are more aggressive disks available if needed. Eventually though, the trans will not agree with more clutch grip. Lol

[sc72]

Did your pressure plate require noticably more pedal effort to disengage than the original festiva clutch?

No noticeable difference in the pedal,

Also, what did you use for a flywheel? I cut mine with the same surface finish as the spec pressure plate. I've learned that trick throughout the years. Too smooth a flywheel will glaze a clutch disk quickly.

I used the stock Festiva flywheel, I did send it off and get it resurfaced, I understand what happens to the disc if you do not grind the surface.

[sc72]

When I talked to Shon at KY clutch he did mention they were in the process of updating their clutch Dyno to a new model.

[Advancedynamix]

I wonder if KY clutch (sounds slippery) would reduce price with a certain volume.

[sketchman]

^I'd be in for that. But even at $150 for 150hp it sounds good already if it performs.

[sc72]

To the man from Mesa, I said KY clutch NOT KY jelly and a group buy sounds interesting.

[ottoparts]

I wonder if KY clutch (sounds slippery) would reduce price with a certain volume.

To the man from Mesa, I said KY clutch NOT KY jelly and a group buy sounds interesting.

KY = Slippery and now a "group" buy. Pervs! Just a bunch of pervs on here!

[sketchman]

lol