team3s           Saturday, February 10 2001           Volume 01 : Number 403




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Date: Fri, 9 Feb 2001 12:56:03 -0600
From: "Walton C. Gibson" <kalla@tripoint.org>
Subject: Re: Team3S: clutch trouble

> You may want to buy a slave cylinder rebuild kit (~ $8) and flush out
> your old fluid and try the Ford Heavy Duty (~ $3.50 pint).  Also,
> SpeedBleeders make bleeding slave cylinders (as well as brake
> calipers) real easy.

I was under the impression that I would have to replace the slave,
but that's very good news $$-wise. I will definitely give it a try.

One of the odd things about this problem is that the car has *not*
does this when it was cold. It only occurs after I've driven around
town for 30 minutes or more. I park it for a few hours and get back
in it, and it's fine again for a while. Maybe an indicator?

regards,

Walton C. Gibson
kalla@tripoint.org


 

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 09 Feb 2001 09:18:49 -0800
From: Daniel Jett <djett@corp.ultratech.com>
Subject: Re: Team3S: clutch trouble

I have had this problem on two Stealth turbo's, and am currently dealing with my shop to find this problems root cause as well.

The shop told me my clutch is slipping...funny, I have a Centerforce DF clutch that I had installed not 9 months ago, and I have never launched the car hard at all!

I'll keep everyone posted.

Dan Jett
94 Stealth TT
lotsa mods, but stock boost!

>>> <kalla@tripoint.org> - 2/8/01 6:29 PM >>>
I've been having trouble getting the vr-4 to go into gear sometimes.
Its felt as if I was losing clutch pressure. Tonight it was doing it
again so I put the car in first, and pressed the clutch pedal all the
way to the floor. I released the brake, and the car moved forward.
So obviously the clutch is not disengagin completely.

So, what should I check first? slave or master cylinder? I just bled
the clutch about 1k miles ago (and the reservoir was full this
afternoon) so I don't think it's fluid related.

Walton C. Gibson
kalla@tripoint.org

***  Info:  http://www.Team3S.com/Rules.htm  ***
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 9 Feb 2001 13:50:20 -0600
From: "Jannusch, Matt" <mjannusch@marketwatch.com>
Subject: RE: Team3S: clutch trouble

> The shop told me my clutch is slipping...funny, I
> have a Centerforce DF clutch that I had installed
> not 9 months ago, and I have never launched the
> car hard at all!

The Centerforce DF I put in my Eclipse GSX went south in only 10,000 miles
of regular commuter driving and a couple autocrosses, even though I never
dropped the clutch or did dragrace starts with it.  The first time I did do
a dragrace with it at the Diamond Star Shootout in 1998 the clutch was toast
right on the line and slipped badly.  There was no longevity there for me on
that clutch, so I switched to ACT which I've been happy with since.

- -Matt
'95 3000GT Spyder VR4

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 9 Feb 2001 12:03:09 -0800
From: "Steve Clarke" <steven-c@e-d-a.com>
Subject: Team3S: Going Both Ways

<Merritt wrote:
<
<"I am approaching a decision point, and thought I'd ask you folks for some
<help.

<The question is: Which car to modify? Which one becomes a race car and
<which one stays street?"

Hi,
This is my first post to the Digest.  I am a little late reading my Team3S
digest, but I have a related concern.

I have run my VR4 at "Drivers School", "Open Track" and similar events for
the last 4 years (on and off).  I have also come to the conclusion, that
properly set-up the VR4/TT is very competitive, even against exotic sports
cars.

I have finally bit the bullet and am going for a full SCCA competition
license.  I am starting with a leased race car as I try to figure out where
a fully race prepped VR4 would fit in SCCA regs.

This turns out to be a potential problem for us.  I am working through my
copy of the SCCA's General Competition Rules and it seems that VR4/TT's fall
foul of several of the SCCA's standing rules.  As I understand the GCR's for
2001, AWD and 4WS are banned from regional and national competition.

So the real question seems to be, under what sanctioning body can we race?

Alternatively, we could get a bunch of like minded VR4/TT and other AWD fans
together and start lobbying the SCCA for a suitable class.

Thoughts, anybody.

Steve Clarke
Yellow 94 VR4
Orinda, CA


***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 09 Feb 2001 14:19:15 -0600
From: Merritt <merritt@cedar-rapids.net>
Subject: Re: Team3S: Going Both Ways

>
>I have finally bit the bullet and am going for a full SCCA competition
>license.  I am starting with a leased race car as I try to figure out where
>a fully race prepped VR4 would fit in SCCA regs.

It doesn't.

>This turns out to be a potential problem for us.  I am working through my
>copy of the SCCA's General Competition Rules and it seems that VR4/TT's fall
>foul of several of the SCCA's standing rules.  As I understand the GCR's for
>2001, AWD and 4WS are banned from regional and national competition.

Yep.
>
>So the real question seems to be, under what sanctioning body can we race?

You might try the Motorola Challenge Series.
As I recall, they put us in the same class as Vipers, though.

You can also try NASA, out of Phoenix:.
National Auto Sport Association       http://www.nasaproracing.com

>
>
>Alternatively, we could get a bunch of like minded VR4/TT and other AWD fans
>together and start lobbying the SCCA for a suitable class.

Lotsa luck.
>
Rich/old poop

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 09 Feb 2001 12:24:10 -0800
From: Daniel Jett <djett@corp.ultratech.com>
Subject: Re: RE: Team3S: clutch trouble

Interesting, and I know this has been hashed out before, but I have had four Centerforces, and have had decent life out of all of them. I wonder if there is a quality control issue with Midway/Centerforce?

Dan J

>>> "Jannusch, Matt" <mjannusch@marketwatch.com> - 2/9/01 11:50 AM >>>
> The shop told me my clutch is slipping...funny, I
> have a Centerforce DF clutch that I had installed
> not 9 months ago, and I have never launched the
> car hard at all!

>The Centerforce DF I put in my Eclipse GSX went south in only 10,000 miles
>of regular commuter driving and a couple autocrosses, even though I never
>dropped the clutch or did dragrace starts with it.  The first time I did do
>a dragrace with it at the Diamond Star Shootout in 1998 the clutch was toast
>right on the line and slipped badly.  There was no longevity there for me on
>that clutch, so I switched to ACT which I've been happy with since.

- -Matt
'95 3000GT Spyder VR4

***  Info:  http://www.Team3S.com/Rules.htm  ***
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 9 Feb 2001 14:39:11 -0600
From: "Willis, Charles E." <cewillis@TexasChildrensHospital.org>
Subject: RE: Team3S: Going Both Ways

NASA is running driving schools and races at Texas World Speedway for the
first time this year.  Maybe I can find something out this weekend.  Running
against Vipers seems fair, so long as we are only running on wet tracks!

Chuck

> -----Original Message-----
> From: Merritt [SMTP:merritt@cedar-rapids.net]
> Sent: Friday, February 09, 2001 2:19 PM
> To: Steve Clarke; Team3S@stealth-3000gt.st
> Subject: Re: Team3S: Going Both Ways
>
> >
> >I have finally bit the bullet and am going for a full SCCA competition
> >license.  I am starting with a leased race car as I try to figure out
> where
> >a fully race prepped VR4 would fit in SCCA regs.
>
> It doesn't.
>
> >This turns out to be a potential problem for us.  I am working through my
> >copy of the SCCA's General Competition Rules and it seems that VR4/TT's
> fall
> >foul of several of the SCCA's standing rules.  As I understand the GCR's
> for
> >2001, AWD and 4WS are banned from regional and national competition.
>
> Yep.
> >
> >So the real question seems to be, under what sanctioning body can we
> race?
>
> You might try the Motorola Challenge Series.
> As I recall, they put us in the same class as Vipers, though.
>
> You can also try NASA, out of Phoenix:.
> National Auto Sport Association       http://www.nasaproracing.com
>
> >
> >
> >Alternatively, we could get a bunch of like minded VR4/TT and other AWD
> fans
> >together and start lobbying the SCCA for a suitable class.
>
> Lotsa luck.
> >
> Rich/old poop
>
> ***  Info:  http://www.Team3S.com/Rules.htm  ***

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 09 Feb 2001 15:37:36 -0800
From: Jay Stump <jstump@erols.com>
Subject: Team3S: Suspension

I have a 91 RT TT Bearing and the bearing race went out. I am replacing
the bearings trailing arm, and I figured while I had it apart I might as
well rebuild the CV joints. Also while it is apart, I thought I would
upgrade the Springs and Struts. the car is a street car with frequent
trips to road racing course. From the archives I was thinking that the
GC springs and the Gab struts would be my choice. Does anyone have any
suggestions on struts and shocks, as well as camber adjustment plates.
Thanks for your help!!!!!!!!!!!


***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 9 Feb 2001 14:46:36 -0600
From: "Willis, Charles E." <cewillis@TexasChildrensHospital.org>
Subject: RE: Team3S: Suspension

I like the GC setups.  I haven't needed camber adjustment plates, but would
install them if I had them.  I prefer tehe stock Mitsu shocks so I can keep
the ECS option.  This is important for comfort on the street and for being
able to soften the suspension on a wet track - trust me, it makes a big
difference.  Are the Gab struts manually adjustable for stiffness (like dial
in)?

> -----Original Message-----
> From: Jay Stump [SMTP:jstump@erols.com]
> Sent: Friday, February 09, 2001 5:38 PM
> To: Team3S@stealth-3000gt.st
> Subject: Team3S: Suspension
>
> I have a 91 RT TT Bearing and the bearing race went out. I am replacing
> the bearings trailing arm, and I figured while I had it apart I might as
> well rebuild the CV joints. Also while it is apart, I thought I would
> upgrade the Springs and Struts. the car is a street car with frequent
> trips to road racing course. From the archives I was thinking that the
> GC springs and the Gab struts would be my choice. Does anyone have any
> suggestions on struts and shocks, as well as camber adjustment plates.
> Thanks for your help!!!!!!!!!!!
>
>
> ***  Info:  http://www.Team3S.com/Rules.htm  ***

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 9 Feb 2001 16:08:01 -0500
From: "Schilberg, Darren" <DSchilberg@freemarkets.com>
Subject: RE: Team3S: Going Both Ways

I thought I read somewhere that because of our superior advantage we were
banned from some form of organized SCCA racing.  Any truth to that myth?

- --Flash!

Hoping I have an "outlawed" race car

- -----Original Message-----
From: Merritt [mailto:merritt@cedar-rapids.net]
Sent: Friday, February 09, 2001 15:19
To: Steve Clarke; Team3S@stealth-3000gt.st
Subject: Re: Team3S: Going Both Ways

>
>I have finally bit the bullet and am going for a full SCCA competition
>license.  I am starting with a leased race car as I try to figure out where
>a fully race prepped VR4 would fit in SCCA regs.

It doesn't.

>So the real question seems to be, under what sanctioning body can we race?

You might try the Motorola Challenge Series.
As I recall, they put us in the same class as Vipers, though.

You can also try NASA, out of Phoenix:.
National Auto Sport Association       http://www.nasaproracing.com



***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 9 Feb 2001 15:17:42 -0600
From: "Willis, Charles E." <cewillis@TexasChildrensHospital.org>
Subject: RE: Team3S: Going Both Ways

not advertising for them, but since the topic came up ...

Check out their website: 
http://www.NASATX.com

> -----Original Message-----
> From: Schilberg, Darren [SMTP:DSchilberg@freemarkets.com]
> Sent: Friday, February 09, 2001 3:08 PM
> To: 'Merritt'; Steve Clarke; Team3S@stealth-3000gt.st
> Subject: RE: Team3S: Going Both Ways
>
>
>
>
> ***  Info:  http://www.Team3S.com/Rules.htm  ***

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Fri, 9 Feb 2001 23:11:08 -0000
From: "Sam Shelat" <sshelat@erols.com>
Subject: Re: Team3S: PocketLOGGER (revised !)

What about hybrid cars like the 94 and 95?  Any chance they might try to
make one for all years.

Sam

>
>
>>6) not fully compatible with 3000GT / Stealths !!!!! (just the same like
>>the TMO Datalogger)
>
>Not yet solved because Mike was not aware of this.
>
>
>
>***  Info:  http://www.Team3S.com/Rules.htm  ***


***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Thu, 10 Feb 2000 10:11:18 -0800
From: Mihai Raicu <aa2345@wayne.edu>
Subject: Team3S: Knock sensor question?

Hey Guys,

I know this probably sounds too easy, but hear me out and tell me your
opinions.  Has anybody tried the following scenario:

Plug in the TMO Datalogger and at the same time a voltmeter on the knock
jack sensor in the middle of the cylinders on the right side of the
engine.  The point of this would be to see what happens to the knock
sensor VOLT values when your car is experiencing knock.

My brother and I tried this on his 94 TT.  Of course we can’t hook up a
datalogger, but we just hooked up a voltmeter.  At idle we were getting
15 mV, at city cruising speeds (turbos not spooled up) we were getting
28 mV, and when the turbos were fully spooled up (~1 bar) we were
getting 75 mV.  Now, we did not do these tests very extensively.

For more extensive tests, what do you guys think of th following idea:
Once, when I have little gas in the tank, I can put 2 gal of bad gas (86
octane) and drive the car hard once in 2nd and 3rd gear.  If I record
all this, maybe I can playback and see if any spikes or drops in voltage
occur.  I think knock should happen if I run the car @ 1 bar with 86
octane gas.

Is this too crazy of an idea (I know it is bad for the car)?  Has
anybody done this or the 1st idea (1st gen, TMO, Voltmeter)?

Thanks everyone,

- -MIKE-
95 Red VR4

John
94 Pearl Yellow TT


***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Sat, 10 Feb 2001 10:28:42 EST
From: StealthCT@aol.com
Subject: Team3S: Air Flow

What is the air flow (CFM) for the 13G, 15G, and 18G turbo's respectively. 
Regards  Charles

***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Sat, 10 Feb 2001 10:48:30 -0500
From: "Dan Mecier" <dmecier@ka.net>
Subject: RE: Team3S: Knock sensor question?

Mike

I have one thing to say: DON'T DO IT!!!!!!!!!!!!!!!!!!!!!!!!!!!! Do not
underestimate the damage that significant detonation can do to your engine,
even in a short period of time. It's not worth it. You may end up with a
method of monitoring the knock sensor but it might cost you an engine in the
process. I have an engine in my basement with a broken piston that is a
direct result of detonation. I don't think you want that do you? Find
someone with the TMO to test out your idea. It's the only conclusive way to
do it anyway.

My .02

Dan Mecier
1994 3000GT VR-4
<<For more extensive tests, what do you guys think of th following idea:
Once, when I have little gas in the tank, I can put 2 gal of bad gas (86
octane) and drive the car hard once in 2nd and 3rd gear.  If I record
all this, maybe I can playback and see if any spikes or drops in voltage
occur.  I think knock should happen if I run the car @ 1 bar with 86
octane gas.

Is this too crazy of an idea (I know it is bad for the car)?  Has
anybody done this or the 1st idea (1st gen, TMO, Voltmeter)?




***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Sat, 10 Feb 2001 07:59:10 -0800 (PST)
From: Jeff Lucius <stealthman92@yahoo.com>
Subject: Re: Team3S: Air Flow

Approximately 360, 424, 520.

I have a fairly comprehensive turbo upgrade guide at the url below.

http://www.3si.org/member-home/jlucius2/j2-2-turboguide.htm

Jeff Lucius, www.stealth316.com

- ----- Original Message -----
From: <StealthCT@aol.com>
To: <Team3S@stealth-3000gt.st>
Sent: Saturday, February 10, 2001 8:28 AM
Subject: Team3S: Air Flow

What is the air flow (CFM) for the 13G, 15G, and 18G turbo's
respectively. 
Regards  Charles


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

Date: Sat, 10 Feb 2001 17:19:06 +0100
From: "Roger Gerl \(RTEC\)" <roger.gerl@bluewin.ch>
Subject: Re: Team3S: Knock sensor question?

> Plug in the TMO Datalogger and at the same time a voltmeter on the knock
> jack sensor in the middle of the cylinders on the right side of the
> engine.  The point of this would be to see what happens to the knock
> sensor VOLT values when your car is experiencing knock.

Yes, unfortunately this sounds too easy. Here is why it doesn't work :

The knock sensor acts like a microphone. Although the manual is telling us
that the voltage produced by the knock sensor is linear to the vibrations of
the block the sensor itselfs also sends a frequency. This frequency together
with the amplitude of the signal must be analyzed to make sure real knock is
isolated by false knock ! This needs more than only a voltmeter that reads
millivolts (the amplitude range of the sensor) but a circuit that isolates
the correct danger frequencies (fourier analysis). This is what the ECU does
with a hardware circuit together with its internal program. ALso the engine
produces more vibrations when cold and therefore the different sensor inputs
to the ECU are used to change the sensitivity with software wise.

The MSD knock sensor works the very same way and it uses an analog circuit
to finally present the amount of knock on a 10 LED bar graph.

When using a voltmeter or build one of your own, it is risky as the
impedance of the measurment circuit has an influence to the knock circuit in
the ECU. People who already tried to do this fried the ECU part or the knock
sensor itselfs.

The idea of hooking up the voltmeter is not new but at the end is not that
simple. But it would be interesting to see if we can find a significant
change in the voltage when real knock appears. For this, a logging device
that records the voltage, rpm and time is necessary when doing the
comparison to the datalogger. This is not easy to do but also not
impossible. My sensor logger is able to do this but the voltage sensing
device doesn't read in this small millivolt region. Then the two data must
be synchronised to get the technically correct comparison.

Roger
93'3000GT TT
www.rtec.ch



***  Info:  http://www.Team3S.com/Rules.htm  ***

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Date: Sat, 10 Feb 2001 12:08:37 EST
From: StealthCT@aol.com
Subject: Team3S: Air Flow

Thanks for the info.  I assume that the larger turbo's are able to produce
more  boost and maintain higher boost levels than the smaller turbo's.  At 1
bar (14PSI) I assume all turbo's are producing the same boost level so
therefore the only advantage of a larger turbo at 1 bar would be it's ability
to produce 14 PSI more efficiently therby reducing heat and increasing usable
HP to  the wheels.  Is this assumption correct?  Regards  Charles 

***  Info:  http://www.Team3S.com/Rules.htm  ***

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

Date: Sat, 10 Feb 2001 10:06:59 -0800 (PST)
From: Jeff Lucius <stealthman92@yahoo.com>
Subject: Re: Team3S: Air Flow

Not necessarily. Larger turbos tend to have their best efficiency at
higher flow levels, so 14 psi boost air from a larger turbo may be
just as "hot" as from a smaller one. It is best to consult compressor
efficiiency maps with the engine air flow demand lines superimposed.
Maps for the 15G and 18T (thanks to Mikael Kenson) are available at
my web site (look in the Quick Jump list) and at Mikael's web site.

The IC efficiency is far more important than the compressor
efficiency because a superb IC will lower any compressed air temp to
near ambient.

I have a turbo outlet air temp calculator on my web page below if you
are curious as to just how hot that air gets. :)

http://www.3si.org/member-home/jlucius/2-turbotemp.htm

The biggest advantage of "larger" turbos is their ability to flow
enough air at high engine RPM to develop high boost levels. The
little stock 9B just can't flow enough air to develop 20 psi boost at
6000 RPM in our engines. The 15G is the entry level turbo for 20 psi
at 6000 RPM.

http://www.3si.org/member-home/jlucius2/j2-2-turboguide.htm

Jeff Lucius, www.stealth316.com

- ----- Original Message -----
From: <StealthCT@aol.com>
To: <Team3S@stealth-3000gt.st>
Sent: Saturday, February 10, 2001 10:08 AM
Subject: Team3S: Air Flow

Thanks for the info.  I assume that the larger turbo's are able to
produce more  boost and maintain higher boost levels than the smaller
turbo's.  At 1 bar (14PSI) I assume all turbo's are producing the
same boost level so therefore the only advantage of a larger turbo at
1 bar would be it's ability to produce 14 PSI more efficiently therby
reducing heat and increasing usable HP to  the wheels.  Is this
assumption correct?  Regards  Charles 


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

Date: Sat, 10 Feb 2001 14:01:22 EST
From: StealthCT@aol.com
Subject: Team3S: Air Flow

Thanks for the info.  I am going to the AAM 18G turbo's with a front mounted
intercooler, Paxon external fuel pump, 720 injectors, and forged pistons and
rods.  I am assuming based on the charts you referred me to that this set up
should support 24PSI.  Regards  Charles

***  Info:  http://www.Team3S.com/Rules.htm  ***

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End of team3s V1 #403
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