[Supras] 57 trim driveability

Walker, Brian (Rich. Dist) Brian.Walker2 at VDOT.Virginia.gov
Thu Jan 31 12:41:40 CST 2008


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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