There are three of us racing TR6 PI in Sydney all with aluminium custom made
flywheels with ceramic face and std clutch . Attachment is 4 bolts 2 dowels
. No problem after 15 months of racing
----- Original Message -----
From: "Bill Babcock" <BillB@bnj.com>
To: <WEmery7451@aol.com>; <gkbyrne@optushome.com.au>; <fot@autox.team.net>
Sent: Thursday, October 06, 2005 11:26 AM
Subject: RE: PowerTrain Clutch
> The last aluminum flywheel that I sheared off had two dowel pins and four
> stock bolts with lock tabs. Cost me a close ratio dog box, which I dropped
> onto the track at a buck thirty. I'll stick with steel--three times is two
> times too many. The Cambridge Motorsports flywheel I use weighs 7.7 pounds
> and is available drilled to hold as many as 12 flywheel bolts.
>
http://shop.cambridgemotorsport.com/product_templates/product_default.cfm?me
> nu_temp=tr4_cylinder.cfm&dep_id=1&prod_id=514&ass_id=13 The steel crank
they
> supply is also drilled for 12 bolts and dowels. I already had a steel
crank,
> so I had a machine shop add more holes.
>
> 295 pounds for the flywheel is a lot less than the 1500 pounds for the
> transmission I lost. You can get one all set up with a Quartermaster
clutch
> from Cambridge. In my case I already had the flywheel, so I had a machine
> shop mount the clutch.
>
> -----Original Message-----
> From: WEmery7451@aol.com [mailto:WEmery7451@aol.com]
> Sent: Wednesday, October 05, 2005 6:07 PM
> To: Bill Babcock; gkbyrne@optushome.com.au; fot@autox.team.net
> Subject: Re: PowerTrain Clutch
>
> In a message dated 10/5/05 7:05:11 AM Pacific Daylight Time, BillB@bnj.com
> writes:
>
> << Be really careful about that aluminum flywheel. I've broken flywheel
> bolts way too many times with aluminum wheels. >>
>
> I sheared off the flywheel bolts a couple of years ago using an aluminum
> flywheel. I contacted Jack Wheeler, who also had the same problem. He
> corrected his problem by getting two dowel pins made, the same length that
> the flywheel is thick. He then used the stock flywheel bolts and locking
> tabs. He felt that he never found any bolts for that application that
were
> better. Tying two bolts together may also give you a little added
strength:
>
> <<Subj: Re: Flywheel Bolts
> Date: 7/12/04 7:38:23 AM Pacific Daylight Time
> From: WEmery7451
> To: john.c.wheeler@Cummins.com
>
> In a message dated 7/12/04 6:16:22 AM Pacific Daylight Time,
> john.c.wheeler@Cummins.com writes:
>
> << I always used stock flywheel bolts. Stock bolts, two dowel pins, and
> lock tabs covering the dowel pins = no problems! >>Thanks, Jack.>>
|