[s-cars] How low can I go? (numeric gear ratio)

calvinlc at earthlink.net calvinlc at earthlink.net
Wed Nov 29 15:26:26 EST 2006


>Road racing says Calvin / I say commuting.

Paul, maybe I am misunderstanding you here, but what I meant was that I
don't see the advantage of the CLOSE ratio 6 speed, i.e. the one where the
6th gear is the same ratio as the stock 5th gear, for anything other than
road racing.  The 0.64 or 0.68 6th gear I can definitely see the advantage
for commuting.

You said you got yours from a '93 S4 V-8???

I must admit, I am not at all up on all the European models but I was not
aware of a '93 S4 with a V-8.  So do trannies like this bolt right in, or
are they major surgery to get into the car?

--Calvin


-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of pkrasusky at ups.com
Sent: Wednesday, November 29, 2006 7:18 AM
To: S-CAR-List at audifans.com
Subject: Re: [s-cars] How low can I go? (numeric gear ratio)



Steve Vaught and Mike EDU'd:

<<<Date: Wed, 29 Nov 2006 07:29:02 -0500
From: Michael Bess <mlbess at optonline.net>
Subject: Re: [s-cars] How low can I go? (numeric gear ratio)
To: 'Andrew Beckert' <abeckert at nc.rr.com>, calvinlc at earthlink.net
Cc: s-car-list at audifans.com
Message-ID: <001f01c713b1$f445e930$6401a8c0 at MMT1>
Content-Type: text/plain; charset=us-ascii

I recently installed an EDU 6-speed (.68 6th gear).  RPM/Speed data in
6th
is:
2400rpm  60 mph
3000rpm  75 mph

Not as low as you are hoping for, but I have seen a slight improvement
in my
gas mileage if I go easy on the go-fast pedal

Mike Bess
'95 S6 RS2'd (MRC)


----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Andrew Beckert
Sent: Wednesday, November 29, 2006 2:45 AM
To: calvinlc at earthlink.net
Cc: s-car-list at audifans.com
Subject: Re: [s-cars] How low can I go? (numeric gear ratio)

This might be much easier than you think.  I believe some of the euro
diesel transmissions like the DPJ might fit the bill. SJM lists it's
ratios as (3.5, 1.89, 1.32, 1.03, 0.67, 0.56) (1st-4th matching the
rs2).  The DPJ also has the wide/flexible first and 4.11 to 1 FD, of
course.

Andrew

calvinlc at earthlink.net wrote:
> So, Steve, have you found someone that will build the tranny with a
custom
> gearset for less than the mortgage on small house?  I have always
thought
> that unless you are road racing the extra gear in the 6 speed was a
waste,
> so I would endorse this approach.  It doesn't take much HP to cruise
at
> 70-80 mph, it might mean that if you want to pass you have to
downshift
but
> that wouldn't seem like a big deal to me.
> --Calvin
>
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com]On Behalf Of Steve Voit
> Sent: Tuesday, November 28, 2006 11:02 PM
> To: s-car-list at audifans.com
> Subject: [s-cars] How low can I go? (numeric gear ratio)
>
>
> S-Heads:
> I'm considering a 6-speed, but instead of the usual close ratio
approach
I'm
> looking to gain a long legged cruiser out of that extra cog.  Our 5
(and
6)
> speed cars turn 3400 RPM at 80 MPH (3000 at 70).  I'm thinking of a
6th
gear
> ratio that will drop this by 500 or 600 to ~2900 RPM at 80MPH.  I've
> satisfied myself that with the stock turbo and MRC stage 2 chip that
the
car
> will pull fine at 2900.  What if I go the RS2 route - will that set-up
pull
> well at 2900 (2500 at 70)?  Any/all comments welcomed - I want to
place my
> order but can't without hearing from y'all because I haven't yet
driven an
> RS2.  thanks!
>
> Steve, seekin' a more relaxed touring car, Voit
>
> Seattle 95.5 S6>>>





Steve-

Bolt on some big dumb turbo and make go like stink power or spend less
and install a 6spd and <<<MAKE THE CAR>>>.  But whaddaIknow.

My CMG out of a '93 //S4 4.2 was also a 0.68 6th.  Mike you got *better*
mileage?  Oh by going easier on the dumbdumb pedal.  Ooops.  How you
manage that with that gearbox?

Me I found the extra "found" 500+/- RPM gain to merely through the car
back into the beginning of the powerband thereby creating a paradigm
shift of what speeds you now "cruise" at.  Ya know 100-120 bursts sure
do feel awwwwwwfullllllllllly good in 6th they do.  Me my mileage
plummeted.  I was warned this prior to install - I figured save rev's
save gas and was told sure if you don't row the shifter out of the box -
which you will.  And he was right.

Hitting the hammer in 6th with the K24 / MRC set up was like lighting a
friggin match under the hood - funny you have that similar set up Mike -
get that MPG down now would ya???  Very er um 'habit-forming' set up.

Couple this with the Pederson/Hap lead fillied shifter and maybe one of
them current market SSK's, maybe some redline oil, and oh momma is it a
snicksnicksnickety set up.  Makes the car.  And don't forget some
clutching and banishment of that infernally rubbery dual crap flywheel.


Road racing says Calvin / I say commuting.

Er, was that out loud?

Rossato would know all this if he actually installed a part.

To answer your Q, do I believe you could go down to an even lower 6th?
Sure, but I wouldn't go much further.  Don't want to create big a gap.
One thing I did note in my car is the new "cruising RPM" does change the
resonant frequency of what my Stebro megaphoned at.  Not bad, just
different.  Current owner reported installing Stromunch this week huh
Posto?  Heh heh.  Be interesting to hear it...

-Paul never, ever listen to me K.
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