[Supras] Supras Digest, Vol 52, Issue 7
donkelly
ocollaugh at comcast.net
Wed Apr 9 12:20:14 CDT 2008
Good morning Supra guys. I would like to view the video if one of you has the URL to it.
I greatly enjoy watching Porchas and Ponys being dusted.
--
don kelly
-------------- Original message ----------------------
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> Today's Topics:
>
> 1. Re: Virginia speedway videos (Walker, Brian (Rich. Dist))
> 2. Re: Stock oil pump (berniek at technicaldevelop.com)
> 3. Re: Retorque of Cometic gasket (berniek at technicaldevelop.com)
> 4. Re: Stock oil pump (Jeff Mohler)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 8 Apr 2008 15:23:10 -0400
> From: "Walker, Brian \(Rich. Dist\)" <Brian.Walker2 at VDOT.Virginia.gov>
> Subject: Re: [Supras] Virginia speedway videos
> To: <berniek at technicaldevelop.com>, <Supras at supras.com>
> Message-ID:
> <648BDB3AA3B1FE4C8C67D8F7642F6EBE02C6A69F at 501EXRI01.virginiadot.org>
> Content-Type: text/plain; charset="us-ascii"
>
> Thanks Bernie. Really, those Porsche guys weren't all that fast and
> being on/off line makes a big difference (I mentioned pointing a Miata
> by the first session, he was fast and on the line and I took the most
> important corner way, way too early)
> I've got bolt on engine stuff, full 3" exhaust, 550/Lex/AFPR (very
> untuned at 9:6:1), techtom ecu, IC & pipes, FIPK, kevlar clutch & light
> FW. Suspesion is Tokico II's/Eibachs (they've held up very well to the
> abuse), nylon bushings, Front/Rear STBs, Bigger swaybars and 235/255-17
> Bridgestones (SO-3)
>
> I'm not keeping the car in the meat of the powerband throughout the
> track, something that will come with time and I don't redline this ol'
> engine, luckily it makes decent torque. You're right there's a big
> difference in throttle modulation at 3k and 5k rpm. Coming out of the
> turn I mentioned above (Oak Tree, Turn 11a onto backstraight) I never
> tried second, instead coming out at 3k in third which on a good line
> allowed me to get on the throttle early. That's another advantage of
> being up a gear, you can apply throttle even earlier without being in
> trouble (vs. downshifting and shifting right back up again)
> Get out there, practice and have fun Bernie, you'll be amazed at what
> you learn.
>
> I'm not sure what the instructor was yelling about unless it's where the
> red Porsche crossed pit out in front of me. People have gotten seriously
> hurt due to things like that in the past, you watch and stay right until
> everyone is past, luckily I was only approaching at ~110 and saw him
> plenty early.
> Brian
>
> -----Original Message-----
> From: berniek at technicaldevelop.com [mailto:berniek at technicaldevelop.com]
>
> Sent: Thursday, April 03, 2008 7:46 PM
> To: Walker, Brian (Rich. Dist); Supras at supras.com
> Subject: Re: Virginia speedway videos
>
> Brian:
>
>
> The videos were absolutely fascinating. I know you have posted your
> mods at sometime in the past, but the way you passed all those Porsches,
> what do you have under that hood? Also, it appears as if your power
> delivery is very smooth. Jeff Mohler and I have discussed the "digital"
>
> nature of 57 trim turbo operation on the list, and quick throttle
> modulation appears to be an acquired skill. My '91 will often break
> loose in second gear faster than I can modulate the throttle. There are
> some seldom used back roads here around Picatinny Arsenal (Morris
> County, NJ) where I done some shenanigans, but obviously nothing like
> the road course. Nonetheless I would not be breaking the law too much
> there at 4000 RPM in second gear. But your videos are of more interest.
> I could not understand what the instructor was yelling at you about 2/3
> of the way through the last session. What was going on?
>
>
> I had plans to drive to Ohio or western Pennsylvania for a first
> novice day in May, but work pressures and deadlines got in the way.
> Also, I need to watch cost somewhat (tires and wheels, time lost from
> consulting work, etc.) since I'm already over the customary retirement
> age in a bad economy. I still want to get to a NASA track, even on
> street tires just for the feel of it. The woman I spoke to in the north
> Jersey chapter said they are trying to open a track locally here, but
> nothing has taken place yet.
>
>
> BernieK
>
>
> '91T 5 speed, refreshed JDM, '98 MkIV wheels, Lexus AFM, 550cc ND
> injectors, Walbro, modified stock adjustable FPR, 57 trim CT26 (no
> turbine clip, but wastegate passage bored out), deflashed valve bowls,
> '98 mounts (strong!), Treadstone IC, hard piping, Lipp, 3" Random Tech
> downpipe and single cat, 80 mm HKS LET-T16 exhaust, Dawes ball and
> spring boost controller (for now, set to 17 PSI), modified Raptor
> recirculated BOV, 2 mm Cometic HG, ARP head studs, helicoiled exhaust
> stud tappings, chrome moly lightweight flywheel, Exedy organic clutch
> (street use).
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 08 Apr 2008 20:02:23 -0400
> From: "berniek at technicaldevelop.com" <berniek at technicaldevelop.com>
> Subject: Re: [Supras] Stock oil pump
> To: fbnetrazor at hotmail.com, Rockey Fox <supr91tt at yahoo.com>,
> "Supras at supras.com" <Supras at supras.com>
> Message-ID: <47FC078F.8000102 at technicaldevelop.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> The stock pump in my JDM core was like new. I had previously bought one
> used, and found the angular slop in the gears from wear to be
> excessive. The stock pump worked fine. Judging from the cylinder wall
> condition, the JDM probably had 40K to 60K easy miles (it was from an
> automatic)
>
>
> I started with about 1/8" of shimming in both the pump relief and bypass
> relief valves, filled the crankcase with 10W oil with the engine
> assembled on the stand with the spark plugs out and just a few pan
> screws in. Turned it over at the damper bolt with a heavy 1/2" drill
> and found the oil pressure to be 80-100 PSI, so removed most of the
> shimming. In the '91T, it is fine, although the new sender reads 20 PSI
> low. I suspect that many of them do this because I had exactly the same
> situation in the '90 which I sold at 156K miles. I checked the pressure
> by punching a hole (no chips) in the bottom of a new oil filter,
> soldering in a piece of 1/4" copper tubing, and connecting to an
> accurate gauge. When hot, there is very little pressure drop across the
> element at idle, and the real gauge reads about 18-20 PSI. The dash
> gauge reads almost zero even with the new sender.
>
>
> Also, I moved the pickup back to the rear kickup in the pan, after all I
> had read about starvation on acceleration, running a quart high, etc.
> Have photos of how to do it if anyone is interested.
>
>
> BernieK
>
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 08 Apr 2008 20:04:50 -0400
> From: "berniek at technicaldevelop.com" <berniek at technicaldevelop.com>
> Subject: Re: [Supras] Retorque of Cometic gasket
> Cc: "Supras at supras.com" <Supras at supras.com>
> Message-ID: <47FC0822.2040009 at technicaldevelop.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Mine is a 2mm also, with ARP studs. I checked it at about 200 miles,
> and found the nuts to be tight on the exhaust side. After that I did
> not even bother checking the intake side.
>
>
> BernieK
>
>
> >
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 8 Apr 2008 17:07:31 -0700
> From: "Jeff Mohler" <speedtoys.racing at gmail.com>
> Subject: Re: [Supras] Stock oil pump
> To: berniek at technicaldevelop.com
> Cc: "Supras at supras.com" <Supras at supras.com>
> Message-ID:
> <a969fbd10804081707y57182b90gc2d06f54e6d12083 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> "after all I had read about starvation on acceleration"
> ---
>
> You -never- read this concerning a Supra Bernie, you just threw money
> at a boogey-man from a 40yr old Detroit dinosaur.
>
>
> NOTHING is an upgrade without an understanding of what rational
> failure it will prevent. Anything else is a sexy way to burn money
> and feel cool.
>
>
>
>
>
>
>
>
> On Tue, Apr 8, 2008 at 5:02 PM, berniek at technicaldevelop.com
> <berniek at technicaldevelop.com> wrote:
> > The stock pump in my JDM core was like new. I had previously bought one
> > used, and found the angular slop in the gears from wear to be
> > excessive. The stock pump worked fine. Judging from the cylinder wall
> > condition, the JDM probably had 40K to 60K easy miles (it was from an
> > automatic)
> >
> >
> > I started with about 1/8" of shimming in both the pump relief and bypass
> > relief valves, filled the crankcase with 10W oil with the engine
> > assembled on the stand with the spark plugs out and just a few pan
> > screws in. Turned it over at the damper bolt with a heavy 1/2" drill
> > and found the oil pressure to be 80-100 PSI, so removed most of the
> > shimming. In the '91T, it is fine, although the new sender reads 20 PSI
> > low. I suspect that many of them do this because I had exactly the same
> > situation in the '90 which I sold at 156K miles. I checked the pressure
> > by punching a hole (no chips) in the bottom of a new oil filter,
> > soldering in a piece of 1/4" copper tubing, and connecting to an
> > accurate gauge. When hot, there is very little pressure drop across the
> > element at idle, and the real gauge reads about 18-20 PSI. The dash
> > gauge reads almost zero even with the new sender.
> >
> >
> > Also, I moved the pickup back to the rear kickup in the pan, after all I
> > had read about starvation on acceleration, running a quart high, etc.
> > Have photos of how to do it if anyone is interested.
> >
> >
> > BernieK
> >
> > _______________________________________________
> > Supras mailing list
> > Supras at supras.com
> > http://supras.com/mailman/listinfo/supras_supras.com
> >
>
>
>
> ------------------------------
>
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>
> End of Supras Digest, Vol 52, Issue 7
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