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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 #287
Reply-To: stealth-3000gt
Sender: owner-stealth-3000gt-digest@list.sirius.com
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Precedence: bulk


Team3S Digest        Sunday, September 19 1999        Volume 01 : Number 287




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Date: Sat, 18 Sep 1999 09:57:56 +0200
From: "R.G." <robby@swissonline.ch>
Subject: Re: Team3S: More water injection fun

> My stock BOV leaks really bad.  With the old BOV and the Blitz set at
> 100/100 with water injection, the most the turbos would peak to is 1.29
> kg/cm2. (in third gear)  Now with the 1G DSM BOV, the Stealth peaks at 1.50

Ouch ! The rings are not made for more than 1.30. They will go south faster than
you think and I highyl recommend JE pistons and Total Seals for such a high
boost. Almost zero detonation is cool but hey the stuff must withstand the high
pressure somehow.

> My stock BOV is junk, I can blow through it pretty easily and when I shake it
> , it rattles like a baby rattle.

Then it is gone for sure. Mine is quiet, no rattling and so. But I will replace
it with the Greddy Type R soon. Not a BOV but a BPV for high pressure
application.
 
> Now I need to get my butt to the drag strip.  That will be tomorrow at Rock
> Falls.  ;)

Good luck water-buddy :) I'll be on dyno next Wednesday with the WI on.

Roger
93'3000GT TT
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Date: Sat, 18 Sep 1999 17:19:14 +0200
From: "R.G." <robby@swissonline.ch>
Subject: Team3S: Water Injection datalogs

Today, I made many runs with the WI injection and different water pressures and
jet sizes.

The datalogs show now that knock is eliminated at 15 psi so I increased boost to
1.15kg/cm2 = 16.3 psi. Knock reappeared again and just started at 4500 now. But
the knock amount is very small and with the current settings no timing retard
occurs.

The temperature in the y-pipe did not go above 103°F and the aluminum y-pipe can
be touched now without danger to be burnt :) With WI switched off and running
1.05kg/cm2 the temp at the throttle rose above 144°F. Knock was even higher than
at 1.15 with WI.

I'm currently do not running any alcohol in the water so I expected the O2
sensor readings will become lower. But there was no sign of this and the
readings stayed above rich 0.90V !! The IDC was the same and the inj. were still
totally maxed out above 5000. Since the last runs a month ago I installed a
larger fuel pump (Denso brown cap) but this made no difference so far.

I just increased one bigger jet and hope to see 1.2kg/cm2 or more without retard
soon :) Slow but safe steps !

BTW: Why am I the only one that runs the datalogger on a 1st gen and comments
the readings. We have many WI users already and at least one has the datalogger
but I never get any log that could be compared. Just running 1.5 kg/cm2 without
real figures of injector time, O2 sensors, timing and real knock would be too
dangerous for me ! And no, I currently don't have the money for another rebuild
;-)

More to come,
Roger
93'3000GT TT

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Date: Sat, 18 Sep 1999 14:12:48 EDT
From: TrboDrvr@aol.com
Subject: Re: Team3S: Antifreeze = Coolant? --- timing belt

Driving the water pump off the timing belt decreases HP loss (at least
theoretically) because of the location of the water pump and its design,
engine balance, pump size and efficiency, pulley size and efficiency, and
probably a few other reasons.  Also, the momentum behind the rotating cams
AND the crankshaft TOGETHER with the placement of the water pump in between
means that there is very little resistance and work needed to spin the
waterpump.  In essence, once everything gets moving, momentum keeps it
moving.  If the water pump is driven off the alternator belt, only the crank
(the lower end) is doing the work and there's nothing at the top end to
maintain the momentum.  The crank has to constantly work to keep things
spinning.  Therefore, you have the crank doing all the work instead of doing
1/2 the work when the pump is driven off the timing belt.

Joe 91TT
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Date: Sun, 19 Sep 1999 01:17:47 -0500
From: "Noah Erickson" <noaherickson@sprintmail.com>
Subject: Re: Team3S: Octane in Texas: 93 = 91?

> Noah Erickson wrote "Texas 93 octane is really 91 octane."
>
> Please elaborate!  What do you mean by this?  Octane ratings are not the
same
> all over?

I hate to look stupid on the list, but I'll explain.  It seems I
misunderstood a good friend of mine who _actually_ knows what's going.  I
thought our gas is a few points below what its rated at, but apparently all
gas is.  Texas (and anywhere else) 93 is more like 92.1 octane, or somewhere
in there.  All gas is really a little lower than its rated, mostly because
of all the stuff put in to save the environment.  More is, of course, always
better, and as long as you're getting your gas from a good source, you
should be reasonably assured that the number is close enough, certainly for
comparitive purposes.  No Diamond Shamrock - "malt liquor for your car" as
TwinTurboSpyder put it.

Noah

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Date: Sun, 19 Sep 1999 21:26:30 EDT
From: "Rice-Burner Crusher" <stealth_es@hotmail.com>
Subject: Team3S: Engine replacement

I have a 93 Stealth ES.  Wanting more power(don't you love speed) I had
thought about a putting in aftermarket turbos, but everyone says, just go
buy a VR4 (or TT).  Well, has anyone ever thought about putting in a V10
Viper engine in our cars?  How complicated would that be?  I saw a Jeep
Wrangler had one in it in a past 4x4 magazine issue.
Is it possible, provided you can find one?


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End of Team3S Digest V1 #287
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