02-11-2008, 09:50 AM
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#1
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Registered User
Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
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Solution!! Sprung Centered Clutch for a Boxster
as you may or may not know, replacing your flywheel with a solid lightweight option will cause chatter with a factory rigid clutch. generally, for a street car, a person with a solid LWF would want to use a sprung centered clutch disk to alleviate this problem.
in my search for a sprung clutch disk, i came to a realization: nobody makes one!with catman's help, i sent the Aasco flywheel dimensions to Spec Clutch and they will now provide sprung disks as a NO COST option to those of us who purchase their products. to order, first choose which clutch 'stage' you want from jdsperformance.com. then, call david at JD's performance to place your order & specify the sprung centered disk. your clutch will ship from Spec 2-3 days after you place the order (they have to make it). Voila; problem solved. BTW, spec said they may be working on a flywheel for us, too; i'll post more when i find out.
spec 'stages' (prices are for disk, pressure plate, release bearing & install tool):
stage 1: similar to OEM ($431)
stage 2: kevlar w/ hi-torque hub ($503)
stage 2+: dual friction w/ hi-torque hub ($575)
stage 3: 6-puck semi-metallic w/ hi-torque hub ($539, not very streetable)
stage 3+: full faced carbon metallic w/ hi-torque hub ($674)
stage 4 is a rigid racing clutch & stage 5 is a rigid drag clutch. also, you can specify a light weight option for another $80 (not sure how much weight this saves).
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02-11-2008, 09:52 AM
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#2
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Registered User
Join Date: Jan 2006
Location: Glen Allen, ON
Posts: 314
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They already should have the measurements, they made me one back in November. I dealt with Spec clutch directly.
Todd
__________________
Current Cars:
1989 911 Targa
1984 944 Original Owner
1971 911T
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02-11-2008, 10:03 AM
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#3
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Registered User
Join Date: Oct 2005
Location: Seattle
Posts: 352
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Thanks for the info. I have been considering a lightweight flywheel for quite a while but didn't want the chatter.
__________________
2000 Black Boxster S
EVO Intake & GIAC Tuning
Headers & Porsche Sport Exhaust System
ROW M030 Suspension
Front & Rear Strut Braces
B&M Short Shift & EVO Billet Linkage
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02-11-2008, 10:48 AM
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#4
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Registered User
Join Date: Jul 2006
Location: Virginia
Posts: 916
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Good info, my lightweight flywheel does rattle while in neutral with the clutch out. I only have 10-15K on my current clutch, so it looks like it will be with me for a while....
Ed
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My Car Webpage
2000 2.7L Boxster 102K; TTP intake, headers, high-flow cats; Dansk high-flow muffler; Autothority ECU chip; TechnoTorque 2; Bilstein coilovers; Racing Dynamics strut brace; stress-bar suspension kit; Aasco lightweight flywheel, B&M short shiftkit; 18" wheels; spare tire delete; OEM GT3 seats; JL audio speakers and subwoofer; Alpine PDX-5/PDX-2 amps; Kenwood DNX8120 CD/DVD/Nav; litronics, deambered
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02-12-2008, 04:47 PM
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#5
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Registered User
Join Date: Jan 2007
Location: Depends on the day of the week....
Posts: 1,400
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Mine also chatters a bit (Aasco with Sachs sport clutch (non sprung). It'll be a while for me too.....
Patrick
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02-12-2008, 07:34 PM
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#6
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Registered User
Join Date: Nov 2006
Location: Bastrop, TX
Posts: 705
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Where would one get a light flywheel? I have searched but found no supplier.
__________________
2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
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02-12-2008, 07:55 PM
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#7
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Registered User
Join Date: Sep 2005
Location: Sacramento
Posts: 3,417
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Quote:
Originally Posted by tholyoak
They already should have the measurements, they made me one back in November. I dealt with Spec clutch directly.
Todd
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How do you like it?
__________________
-99' Zenith Blue 5-spd...didn't agree with a center divider on the freeway
-01' S Orient Red Metallic 6-spd...money pit...sold to buy a house
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02-12-2008, 07:56 PM
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#8
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Registered User
Join Date: Sep 2005
Location: Sacramento
Posts: 3,417
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FYI for 3.2L owners,prices are anywhere from $130-190 more per kit compared the 2.5L.
http://www.jdsperformance.com/spec.asp?make=Porsche&model=Boxster&fcmd=cars
__________________
-99' Zenith Blue 5-spd...didn't agree with a center divider on the freeway
-01' S Orient Red Metallic 6-spd...money pit...sold to buy a house
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