[Supras] 57 trim driveability

Jim Jobe jjobe2 at supratech.org
Thu Jan 31 15:54:43 CST 2008


Are we talking about mk4's now?  >1/4mi and no mk3 owner can afford
a pit crew.

On Thu, Jan 31, 2008 at 04:42:54PM -0500, Walker, Brian (Rich. Dist) wrote:
> No, but that's what pit crews are there for :) 
> 
> -----Original Message-----
> From: cthommes at adelphia.net [mailto:cthommes at adelphia.net] 
> Sent: Thursday, January 31, 2008 1:57 PM
> To: Walker, Brian (Rich. Dist)
> Cc: Supras at supras.com; berniek at technicaldevelop.com; Jeff Mohler
> Subject: RE: [Supras] 57 trim driveability
> 
> I don't understand.  Supras are capable of driving a full quarter of a
> mile without blowing a head gasket?
> 
> -Craig
> 
> ---- "Walker wrote: 
> > Mohler said fast, not quick 1/4 mile cars ;)
> > 
> > Brian W-88T
> > 
> > -----Original Message-----
> > From: cthommes at adelphia.net [mailto:cthommes at adelphia.net]
> > Sent: Thursday, January 31, 2008 1:01 PM
> > To: Jeff Mohler
> > Cc: Supras at supras.com; berniek at technicaldevelop.com; Walker, Brian 
> > (Rich. Dist)
> > Subject: Re: [Supras] 57 trim driveability
> > 
> > I call "bullsh!t" from the central coast.
> > 
> > -Craig
> > 
> > ---- Jeff Mohler <speedtoys.racing at gmail.com> wrote: 
> > > If there was any way to be near YOU, id help..but there are no fast 
> > > supras within 100s of miles of San Francisco, CA.
> > > 
> > > 
> > > Yes, im callin you Norcal MK3 owners out..
> > > 
> > > On Wed, Jan 30, 2008 at 9:14 PM, berniek at technicaldevelop.com 
> > > <berniek at technicaldevelop.com> wrote:
> > > > Jeff:
> > > >
> > > >
> > > >     Thanks for the response.  Well, the consensus now that you 
> > > > have also  "voted" is that its up to me to put more time into 
> > > > learning how to deal  with the change in character of the car.  I 
> > > > gotta get some time at a  track, but the nearest one where there 
> > > > is any chance
> > 
> > > > of getting time is  in Englishtown, NJ, about 50 miles south.  The
> 
> > > > back roads by Picatinny  Arsenal near my home are just too 
> > > > unforgiving if I lose it:  no  shoulders, but trees and (in some
> > > > cases) guard rails instead (cops are  there, but rarely).  
> > > > Unfortunately, NJ is the state with highest  population density, 
> > > > and
> > 
> > > > I'm stuck here due to work and my electronic  design client base.
> 
> > > > You are almost correct about 1 bit throttle  resolution, at least 
> > > > to
> > 
> > > > date.  I still have only 600 miles on the  refreshed JDM engine 
> > > > due to residual salt on the roads, lack of time,  and rain.  As 
> > > > the weather gets better I'll take the car to an on-site  client 
> > > > location
> > 
> > > > a day or two per week, also on back roads and only about  10 miles
> 
> > > > away.  I guess a good way to start to learn is to first counter  
> > > > the
> > 
> > > > intuitive nature to back off completely at first when starting to 
> > > > break traction in a straight line.  Cornering can then come later.
> > Let  me know if you disagree.
> > > >
> > > >
> > > >  Take care.
> > > >
> > > >
> > > >     Bernie
> > > >
> > > >
> > > >
> > > >
> > > >  Jeff Mohler wrote:
> > > >  > Bernie:
> > > >  >
> > > >  > Once you learn that on a turbo car you can still accelerate 
> > > > while
> > 
> > > > > LIFTING the throttle to maintain control and being ahead of the
> > > > car  > instead of behind it, you'll do better.
> > > >  >
> > > >  > I think youre driving with a 1 bit resolution on the throttle, 
> > > > instead  > of a measured response to what the car -will- do.
> > > >  >
> > > >  > Trust me..the BIG super many hundreds more HP turbos than what 
> > > > you  > have are hard to drive, not a pea shooter with an upgrade.
> > > > ;)  >  > Most issues with driving a challenging car, are the 
> > > > drivers
> > 
> > > > > fault...dont waste any time or money bringing the car to your  >
> > > > level..you rise up to its level.
> > > >  >
> > > >  >
> > > >  >>     I guess what I'm trying to state is that in a sense,
> spoolup
> > within
> > > >  >>  a very small RPM range (2800~3200) coupled with throttle 
> > > > non-linearity  >>  seems almost like an artificial impediment.  
> > > > Yes,
> > 
> > > > I know it is the  >>  character of the car now ('91 with mods as 
> > > > described), and maintaining  >>  controllability on the edge of a 
> > > > dry pavement drift was much easier  >>  (albeit slower) with my
> > former '90, which was essentially stock.
> > > >  >>
> > > >  >>
> > > >  >>     Ultimately an answer will come out of this, either in
> terms
> > of
> > > >  >>  increased learning effort on my part or by some means of 
> > > > driveability  >>  assist, if you will.  As stated, Ford attacked 
> > > > this problem over 40  >>  years ago by throttle linkage based 
> > > > non-linearity introduction when the  >>  Paxton blown 312 CID 
> > > > Y-block V8 was introduced to compete with the Chevy  >>  and 
> > > > Pontiac
> > Rochester constant flow fuel injection system.
> > > >  >>
> > > >  >>
> > > >  >>     Bernie
> > > >  >>
> > > >  >>
> > > >  >>
> > > >  >>
> > > >  >>
> > > >  >>  _______________________________________________
> > > >  >>  Supras mailing list
> > > >  >>  Supras at supras.com
> > > >  >>  http://supras.com/mailman/listinfo/supras_supras.com
> > > >  >>
> > > >  >>
> > > >  >
> > > >  >
> > > >  >
> > > >
> > > 
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> 
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