(MARRS-RX7) clutch

Matthew Stutt mstutt
Sat Nov 15 17:15:08 CET 2008

If only we had an archive of the old list traffic...this one has seen alot
of discussion.

You've gotten good advise, here.

Two influencing factors when choosing a clutch, IMO.  What will not overheat
and fail and what is not so abrupt that you blow up transmissions, axles
etc.  I believe strongly in the sprung hub, 'pucked' clutches for
durability.  Pressure plate...whatever is cheapest at this point, though the
typical logic is that the stock pressure plate has enough clamb to not slip
badly on hard up shifts.  The stock one also weighs a little less than the

Also, if memory serves, ACT is expensive.  I've always bought my stuff from
Racing Beat/MazdaTrix (clutchnet brand?)...less than 300 for the pressure
plate and clutch disk.  Could be wrong about the details, but the price
difference b/t the two was non-trivial the last time I checked.

On Sat, Nov 15, 2008 at 11:06 AM, Gervais, Al <AGervais at newcorp.com> wrote:

>  I've use a centerforce unsprung 4 puck for years.  Good bite, not too
> expensive, and they last.
>  And now we're waiting for Bill to rant about how they eat transmissions...
> ....And we're waiting....
> ....And we're waiting...
> ----- Original Message -----
> From: spec7-bounces at specrx7.com <spec7-bounces at specrx7.com>
> To: 'Spec RX-7' <spec7 at specrx7.com>
> Sent: Sat Nov 15 10:48:59 2008
> Subject: Re: (MARRS-RX7) clutch
> I chose a sprung hub, ACT 6 puck clutch.  Mainly due to the fact that A) I
> had used ACT before and like their stuff, B) I wanted the strength of a
> "pucked" clutch disk and C) that they had pucked options that had springs
> (instead of full racing disks that do not have springs) which make for a bit
> less harsher engagement as I wanted to still be able to drive the car on the
> street.  From what I have driven of the car so far, it seems to be a great
> setup.
> -----Original Message-----
> From: spec7-bounces at specrx7.com [mailto:spec7-bounces at specrx7.com<spec7-bounces at specrx7.com>]
> Sent: Saturday, November 15, 2008 12:55 AM
> To: spec7 list
> Subject: (MARRS-RX7) clutch
> What clutch are most running? I'm guessin  my car hassomething closer to a
> stock clutch going by how soft and slow it engages compared to Als witch had
> me hiting my head on the seat every shift and I'm not one to baby a shift
> either.
> Danny Matula
> AMC Fabricators, llc
> ph# 540 295 7694
> Fax# 1-800-763-1731
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