[Supras] 57 trim driveability
Walker, Brian (Rich. Dist)
Brian.Walker2 at VDOT.Virginia.gov
Thu Jan 31 07:57:34 CST 2008
+1 to that Geoff. If anyone thinks it's really safe to do in an area
like that you are either very uninformed or not really driving the car.
Even on a dedicated environment like a track it can be dangerous as
there are other cars, wildlife, off road ostacles and good ol' random
occurences. Sounds a lot like roadways huh? Oh, there's no medical
staff, professional flaggers and gravel traps to help out in case of an
occurance there ;)
One of these days we're gonna have to have a central mk3 track meet like
the mk4 guys do at Road Atlanta. Either one is too far for my current
tow setup with my 192k mile 98' Tacoma :)
Bernie, how far are you from Watkins Glen? I believe NASA-NE runs there
as well as Beaverun in PA.
Brian
-----Original Message-----
From: Jeff Mohler [mailto:speedtoys.racing at gmail.com]
Sent: Thursday, January 31, 2008 12:46 AM
To: berniek at technicaldevelop.com
Cc: Walker, Brian (Rich. Dist); Supras at supras.com
Subject: Re: [Supras] 57 trim driveability
The only thing I disagree on, is trying to learn anything on a public
road.
Here..
http://www.nasanortheast.org
Specifically..the main site about NASA here, and special attention to
THIS: http://www.nasaproracing.com/hpde/index.html
Then let me know when youre able to fly out to CA, and try out one of
our events sometime..dont need your car, I'll take "care" of you in that
regard.
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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