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From: owner-stealth-3000gt-digest@list.sirius.com (Team3S Digest)
To: stealth-3000gt-digest@list.sirius.com
Subject: Team3S Digest V1 #356
Reply-To: stealth-3000gt
Sender: owner-stealth-3000gt-digest@list.sirius.com
Errors-To: owner-stealth-3000gt-digest@list.sirius.com
Precedence: bulk


Team3S Digest        Sunday, December 12 1999        Volume 01 : Number 356




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Date: Sat, 11 Dec 1999 19:12:38 +0100
From: "R.G." <robby@freesurf.ch>
Subject: Re: Team3S: EGT meter

From the view of functionality I'd get the Apexi ones with peak hold
function. But they are damn expensive and only in the larger size available
(I guess 60mm)

I have two AutoMeter ones (still not installed). The probe looks very good
and even the wires are braided. They come with a small box with the
necessary electronics. The meter themselfs are not that great (I have the
Ultra Lite) but do there work (I tested it with the heater gun, LOL)

For the position, availability and probe size is what counts. Directly
before the turbo flange is the way to go as there you would not create a
restriction as well as you'll cover all gases. Temps should not go above
800°C I'd say.

Roger
93'3000GT TT

> I'm looking for an EGT meter, I want feedback regarding brand, quality and
> price.
>
> What's best, digital or analog?
>
> Also, is the best location in the rear exhaust manifold? What temperature
> can I expect in the rear exhaust?

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Date: Sat, 11 Dec 1999 19:20:08 +0100
From: "R.G." <robby@freesurf.ch>
Subject: Re: Team3S: Crankshaft pulley

Why do you want to change the pulley ! Keep the stock one if it is not
damaged.

Roger
93'3000GT TT
> Can anyone give me some advice on how to change the crankshaft
> pulley. Where can I get a tool like manual shows or is there another
> way to get it off? Thanks



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Date: Sat, 11 Dec 1999 12:26:57 -0600
From: xwing <xwing@execpc.com>
Subject: Team3S: Re: clutch MATERIALS

Kevlar stands up to heat well, supposedly better than
standard organic clutch material.  I think Kevlar has
a lower coefficient of friction than standard organics,
so can slip more with same pressure plate loading.
I have used Kevlar clutch disc with same pressure
plate on my 79 TA (10 second 3500 lb car with
slicks) and found the Kevlar version slipped, so had
to go back to regular organic disc.

Ceramic puck clutches have very high heat capability,
high holding power, but have very harsh engagement
characteristics; they usually won't slip on a normal
street takeoff, but tend to grab/judder, so hard to take
off gracefully.  The on-off nature of ceramic type
clutch makes it have a high instant shock load which
imparts more stress to the driveline (transmission,
transfer case etc.) so could break parts more than an
organic or Kevlar unit which will smoothly slip while
building up torque transfer until lockup.

RPS is hoping to utilize carbon fiber, which has very
high heat stability, and "adjustable" friction coefficients,
to build a clutch that allows higher holding power while
still slipping smoothly like a regular organic--thus their
"Carbon Claw" series, still in somewhat experimental
phase on learning curve.  The first RPS carbon clutches
for our cars slipped for some people (not me) due to defect; they
replaced disc for free--the replacement I got has carbon
on one side, organic with metal weave on the other;
I haven't yet had chance to try it.

At least RPS is doing some
research into a better solution for us than saying "get the
ceramic puck trans/xfer case destroyer, tough luck buddy",
but the cost of this is some people having remove/replace
costs for RPS...some have even gotten paid for R&R
though.  I doubt most other companies would do that!
When I ran a Centerforce (with only mild mods) and it
slipped within 5000 mostly winter miles, Centerforce Co
told me to take a hike, no replacement or restitution at all...

I'd prefer an organic, unless a strong enough holding
clutch was not available, then puck/ceramic is go-to
choice.

There is supposedly an O S Giken clutch out of Japan
that uses multiple discs (2 or 3?) with plates, like many
circle track designs, to increase torque capacity.  I
think it may wear more quickly (more surfaces being
worn away, a 7.5" triple disc on my TA wore super
fast but that is an extreme example) and it costs ?$2000 or more?
I have wondered if it were actually manufactured by Tilton
or another USA manufacturer, but never searched out
the info...

Jack Tertadian

nketo wrote:

> any know the thermal/physical characteristics of
> KEVLAR vs. CEREMIC clutches?  technical details;
> wear, high-temp stability, glazing, holding
> power that each has over other.
> -Noble

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Date: Sun, 12 Dec 1999 10:46:08 EST
From: Aso8@aol.com
Subject: Team3S: Time/Weight formula?

All things being equal, if a cars weight is reduced by 100lbs
what is the expected 1/4 mile time reduction?
Is there a simple formula to figure this?
Tks Arty
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Date: Sun, 12 Dec 1999 10:38:41 -0600
From: "Trevor L. James" <trevor@kscable.com>
Subject: Re: Team3S: Time/Weight formula?

I bet there's a formula, only it's probably a mile long and it would take Einstein to
figure it out! Stockish cars will usually pick up about a tenth. Cars on the extreme of
weight and horsepower can pick up anywhere from .06-.15. I'd venture to say that you'd
probably be in the low gain side. I would think that 1000 HP wouldn't have too hard of a
time motivating 3800lbs! You also have to worry about where the weight was removed from
because that affects the car's launch and weight transfer.

Trevor
96 R/T TT
12.86@107.2
12.68@111.4 0-60 4.14 Gtech
92 GMC Typhoon
13.90@97.8 0-60 5.09 Gtech

Aso8@aol.com wrote:

> All things being equal, if a cars weight is reduced by 100lbs
> what is the expected 1/4 mile time reduction?
> Is there a simple formula to figure this?
> Tks Arty
> For subscribe/unsubscribe info, our web page is http://www.bobforrest.com/Team3S.htm




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Date: Sun, 12 Dec 1999 10:32:40 -0700
From: "Barry E. King" <beking@home.com>
Subject: RE: Team3S: Time/Weight formula?

The following formulae are approximations and will give you a ballpark idea
of what you might expect in an ideal situation.

HP = weight (lbs) / (ET (seconds) / 5.825)^3

- -or-

HP = weight (lbs) * (trap speed (MPH) / 234)^3

So in your case, you'll need to have some idea of HP.  You could also come
up with a factor by substituting 1 for HP and 100 for weight which would
give you the improvement per HP/100 lbs.

These


Barry


> -----Original Message-----
> From: owner-stealth-3000gt@list.sirius.com
> [mailto:owner-stealth-3000gt@list.sirius.com]On Behalf Of Aso8@aol.com
> Sent: Sunday, December 12, 1999 8:46 AM
> To: stealth-3000gt@list.sirius.com
> Cc: Aso8@aol.com
> Subject: Team3S: Time/Weight formula?
>
>
> All things being equal, if a cars weight is reduced by 100lbs
> what is the expected 1/4 mile time reduction?
> Is there a simple formula to figure this?
> Tks Arty
> For subscribe/unsubscribe info, our web page is
> http://www.bobforrest.com/Team3S.htm
>

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------------------------------

Date: Sun, 12 Dec 1999 12:46:19 EST
From: BHurvitz@aol.com
Subject: Team3S: apex avc-r installation

I just started to install the apex avc-r and have a number of questions
dealing with the wiring into the electronic control unit. Members previous
experience would be very helpful and greatly appreciated.

1. Do I need to take the ECU unit out or can I wire it in place from the
drivers side?

2. Do the wiring harnesses need to be removed from the ECU, do they just pull
out, or is there a clip I need to release. Can I release the harnesses with
the unit in place or do I have to remove the screws that hold the ECU in
place before I can release the harnesses?

3. The Apex instructions on page 16 shows ECU wiring diagrams. None appear to
match up with our cars. The shop manual shows harness number C-52, C- 53, and
C- 54 going into the ECU. Looking at the ECU in place from the drivers side
would the upper right hand corner of harness:
                     C-52 be Wire #1
                    C-53  be wire # 51
                    C-54 be wire # 101
If this is incorrect could I have the correct orientation to these wires

4. With the correct orientation to the wires established, which harness and
wire # and color would I connect the following wires from the avc-r to:
        a.  Apex Red wire to unknown location of IG power
        b.  Apex purple wire to unknown location of RPM signal or Injector
signal.
                What are my advantages and disadvantages with the RPM or the   
            signal injector?
        c.  Apex green wire to unknown location of ground
        d.  Apex black wire to unknown location of ground
        e.  Apex gray wire to unknown location of throttle signal
        f.  Apex white wire to unknown location of speed signal
5. Does the old solenoid valve need to be disconnected from it's electrical
source? Should the inlets be cap off, left open or connected to each other if
I am to leave it connected to it's electrical source?
6. Does it matter if I mount the new Solenoid horizontal or vertical? Where
is a good place to mount it.
7. Should I attach the pressure sensor vacuum hose to the fuel vacuum line,
or will any vacuum line do? Where is a good place to mount it.
8. Where is the best (easiest) place to snake the new harness into the engine
compartment?

Thanks for the help
Bob 91 Stealth TT
       

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Date: Sun, 12 Dec 1999 16:14:32 EST
From: TurboDrvn@aol.com
Subject: Re: Team3S: Time/Weight formula?

In a message dated 12/12/99 9:49:27 AM Central Standard Time, Aso8@aol.com
writes:

<< All things being equal, if a cars weight is reduced by 100lbs
what is the expected 1/4 mile time reduction?
Is there a simple formula to figure this?
Tks Arty >>

Hi Arty,
   
    This takes me back to the Buick Grand National days...Traditionally, I
thought it was the rule of thumb that for every 100lbs. you reduce you cut
off about a tenth of a second in your 1/4 mile times (granted all other
conditions/variables are consistently the same/equal; temperature of day,
temperature of car, tires, same launching techniques (rpm's, boost,
feathering/dropping clutch, etc.).    So if you reduce a total weight of
500lbs...chances are you'll cut off a half second from your 1/4 mile times.  
Anyone else agree or disagree??

Ahmed "AL-Crazy" - '92 VR4
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End of Team3S Digest V1 #356
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