good clutch experiment

[legendzcarclub]

i was looking into getting a new hi-performance clutch for my 73 but all i found was clutch masters and centerforce but what ive heard from people that have own the centerforce is that it feels stock to a regular clutch i never pent my money on a hi-performance clutch from them for that reason and clutch masters is just to expensive for me plus i dont realy like their brand i was looking into an exedy clutch off of a s14 what do you guys thing heres the stats on the both clutches

SILVIA

Year: 94-on

Application: S14, 2.0 Ltr SR20DE, DOHC Non Turbo ( 255mm PCD )

Size & Spline OD x No of Teeth: 225 x 25.5 x 24

Standard Clutch Kit

Clutch Kit: NSK-7455

Spigot BRG/Bush: PB-22

Flywheel Profile: Flat

Model: 240Z - 260Z - 280ZX - 300ZX - 350Z

Year: 70-74

Application: 240Z, HS, HLS30, 2.4 Ltr, 260Z, RS, GRLS30, 2.6 Ltr

Size & Spline OD x No of Teeth: 225X25.5X24

Spigot BRG/Bush: PB-22

Flywheel Profile: Flat

last time i checked on the web site it had the same clamp load on both clutches but i think i would have to use a new pressure plate for the clutch disc cause i dont know if the s 14 one bolts on

[Curtis240Z]

I am using an ACT clutch NX1-HDSS and like the results.

[legendzcarclub]

act you say ok i have had some good expiriences how much did it cost and where did you get it cause i went through theire web site and i came up ampty handed in my searches with them i went as far as 78 280z and nothing it says no products available

[Curtis240Z]

act you say ok i have had some good expiriences how much did it cost and where did you get it cause i went through theire web site and i came up ampty handed in my searches with them i went as far as 78 280z and nothing it says no products available

I bought it locally for $375.00, so I'm sure you can get it cheaper since you are on the continent.

BTW since you are changing the clutch you might want to consider a lighter flywheel. I am using a Fidanza 10.5 lbs flywheel.

[legendzcarclub]

i heard a lightened fly wheel isnt that good because it slows the rotational mass/inertia by allot so my rpm's will drop lower faster i had one before but then i read on other sites about the bad part of having one so i got skeptic about it so i gave it to my friend who gave it to me for some odd reason neither of us want to use it .......but ill try to get the clutch act is 40 minutes away from where i live so i either just call them or drive down there

[Mat M]

snip...a lightened fly wheel isnt that good because it slows the rotational mass/inertia by allot...snip...

I think you have the idea about a lightened flywheel bass-ackward. True it reduces rotating inertia (that's a positive step), but the lower inertia enables the motor to rev to a given RPM quicker (increasing or decreasing), with less resistance. You don't "slow" inertia, you either have it or dont. Higher inertia = more resistance to spinning. The idle RPM will still be the same. One may make the argument that engaging the clutch would be more touchy because the lightened flywheel may no longer have the inertia to overcome the drag as easily.

[Curtis240Z]

Mat M is correct the positive points about a light flywheel is the quicker acceleration because you have less weight, which equals more useable horsepower. The "downside" which is not really that bad is the engine will spin down quicker and clutch engagement needs to be more precise because you have less weight covering up your sloppy engagement.