You know I saw George Potter do the same thing .... the old powerglide deal
with the In and Out Box... and Like you Tom he set records of his own....
Now Tom you still hold those records... (Pssss I have Johns Home address if
you wanna sneak in and find all his speed secrets) .... Mayf is the one we
want sneak into.... he has all this special software that he is going to
unleash on us..
Ps.. have you gone to his little web site yet.... neat deal...
There is a part of me that really does agree with you Tom... At some point
you get it in the top gear and it pulls or it doesn't... if it can pull the
gear then it is going to go fast.... if it can't... well then it isn't...
Keith VIRUS FREE.... I hope... damn
----------
> From: Lawrence E. Mayfield <mayfield@traveller.com>
> To: Thomas E. Bryant <saltracer@awwwsome.com>; Keith Turk <kturk@ala.net>
> Cc: John Beckett <johnbeck@blueridge.cc.nc.us>; land-speed@autox.team.net
> Subject: Re: Transmissions
> Date: Wednesday, April 21, 1999 11:08 AM
>
> A new thought on gearin' an shiftin'. Do any of you use Shift Master
> Software to determine the best shift points? No? Shame on you.
>
> mayf
>
> At 01:51 PM 4/21/99 -0700, Thomas E. Bryant wrote:
> >Keith,
> >
> >You think that you are hurting, I run a direct-drive, (no converter)
> >two-speed Powerglide that drops from 8000 RPM to about 5500 RPM when it
> >shifts. There are different schools of thought on the subject, but quite
> >frankly, I'm not sure that it hurts us that much, we still are capable
> >of a 205 MPH 1/4, with little left at the 5 mile.
> >
> >If you had fifteen miles under power the speed attained is the result of
> >Horse Power versus the Resistance to forward motion. The greater frontal
> >area cars reach the wall in a shorter distance. It is my opinion that
> >the gearing you speak of is a bigger factor for the streamliners.
> >
> >Tom
> >
> >Keith Turk wrote:
> >>
> >> you folks realize your destroying my Transmission plans.... shot a
hole in
> >> my Grand Scheme you did... it was my thought that I could accelerate
from
> >> Zero faster if I had a wide ratio.... trans....
> >>
> >> At Maxton on the mile this may even be true... But I understand the
logic
> >> of staying in a proper torque band and the decrease in RPM drop
between the
> >> gears.... AHHH now to look at transmissions again... and this was a
Doug
> >> Nash / now Richmond Gears T-10 that I bought special for the wide
ratio...
> >> and it worked like stink in a Autobahn cruiser.... and didn't even
need a
> >> push truck at every stop light
> >>
> >> I know of a 5 speed Doug Nash with extra gear sets here in town... I
may
> >> look into that.... it has a 1:1 output... I don't know if it has
straight
> >> cut gears or not.... is that an issue?
> >>
> >> Keith...
> >>
> >> ----------
> >> > From: John Beckett <johnbeck@blueridge.cc.nc.us>
> >> > To: land-speed@autox.team.net
> >> > Subject: Re: Transmissions
> >> > Date: Tuesday, April 20, 1999 8:30 AM
> >> >
> >> > Dave makes a very interesting point about transmissions. A
very
> >> important
> >> > and often over looked part of the total combination. My current car
has a
> >> > close ratio, 2.32 first gear, even that is to much. May next car
will
> >> have
> >> > a very close ratio 4-speed, in the 2.0 to 1.9 range.
> >> > Discovered last year that exceleration through the first two
> miles could
> >> > have as much as a 5 MPH difference in the five mile speed.
> >> >
> >> > John Beckett
> >> >
> >> >
> >> > At 10:26 AM 4/17/99 -0400, Dave Dahlgren wrote:
> >> > >I am a newcomer to land speed racing,since '93 but have raced cars
> >> > >professionally since I was 22, am 47 now.. So when I am out there I
am
> >> > >at work. Land speed racing is no different than any other that I
have
> >> > >been to. There are a ton of tough decisions to make and I am not
afraid
> >> > >to make them. The most important ones revolve around will I make it
to
> >> > >the other end ? My philosophy may not work for most as I plan on
setting
> >> > >a record when we go and at the end of the meet there does not have
to be
> >> > >much left. This does not work for most people as the cost is $$$$$
. But
> >> > >every pass other than license passes on the car has been a record
pass
> >> > >or the qualifying one before it. have probably jinxed this year by
> >> > >saying that but do not believe that much in luck, just hard work
and
> >> > >good engineering. If I were in your shoes I would make all the
trades
> >> > >necessary in order to get down the track and pump up the power as
money
> >> > >allows. The only exception to this would be a transmission that
allows
> >> > >you to change gear ratios at will.
> >> >
> >> > "Everyone that I have ever helped out there almost always had
an
> >> > impossible combination of gear ratios. either overpower the track
early
> >> on
> >> > or gear splits that can not be done and stay in the power band on
the big
> >> > end.. There is as much thought required in the transmission than
almost
> >> any
> >> > other part of the combination. read you NEED a CLOSE RATIO
TRANSMISSION
> >> !!"
> >> >
> >> > >
> >> > >So buy the dry sump,best fire suit and system,best
> >> > >suspension,transmission. Blow off the 10,000 dollar cylinder heads
for
> >> > >now and the paint well why bother if you do not have the other
stuff. It
> >> > >is not much fun changing bearings in a pretty car, or worse yet
dragging
> >> > >the remains on the trailer after you roll it up in a ball because
you
> >> > >bought the paint instead of the Koni shocks..!
> >> > >
> >> > >Regards,
> >> > >Dave Dahlgren
> >> > >
> >> > >Keith Turk wrote:
> >> > >>
> >> > >> and your opinion is worth more then the cup of coffee...
thanks.....K
> >> > >>
> >> > >> now how to do all that on a budget.... Guess I have to settle for
the
> >> fun
> >> > >> eh...
> >> > >>
> >> > >> Bud I am dead serious about this one thing in my life... someday
I am
> >> going
> >> > >> to be in the two club... if it takes multiple valves and 10
speeds
> >> then
> >> > >> that is what I will acquire... Been down a ton of roads over the
> >> years...
> >> > >> and I have always accomplished the goals I set for myself... this
is
> >> one
> >> > >> that has been lurking in the back of my mind since I was twenty
years
> >> > >> old... (41 now)
> >> > >>
> >> > >> My Partner has to bring Reality with him and keep me grounded...
we
> >> are
> >> > >> here to have fun.... and the record someday will happen... I
seriously
> >> > >> don't expect it this year.... I expect to drive the long course
and
> >> have a
> >> > >> ball... hey and meet my newly made friends from here... But most
of
> >> all I
> >> > >> expect to take home a ton of lessons on what to and what not to
do at
> >> > >> Bonneville....
> >> > >>
> >> > >> Learning Curve here is pretty steep... It was kinda like that
with the
> >> > >> AH-64 Apache when we first started flying it... none of us had a
clue
> >> and
> >> > >> the engineers weren't much help in communicating on the
> >> Pilot/instructor
> >> > >> pilot level... we had to assimilate a ton of new information and
then
> >> > >> decide what was important and what wasn't... Based on all the
kids we
> >> > >> trained and the outcome of their work... I would say we did a
pretty
> >> fair
> >> > >> job....
> >> > >>
> >> > >> This is a ton like that.. for me at least...
> >> > >>
> >> > >> I honestly appreciate your being here and lending your knowledge
to
> >> those
> >> > >> of us that aren't as well versed..
> >> > >>
> >> > >> Keith
> >> > >>
> >> > >> ----------
> >> > >> > From: Dave Dahlgren <dahlgren@uconect.net>
> >> > >> > To: Chris R Harris <yesford@clear.net.nz>
> >> > >> > Cc: Land-speed@autox.team.net
> >> > >> > Subject: Re: Belt camshaft drives
> >> > >> > Date: Saturday, April 17, 1999 5:05 AM
> >> > >> >
> >> > >> > Best pushrod engines belong to NHRA Pro Stock 1250 hp 500
> >> inches..2.5 HP
> >> > >> > per Cu In that would be 887 hp 355. Winston Cup is around 720
> >> HP.2.03
> >> > >> > HP per Cu In.. The prostock guys run them... Belt drive is like
a
> >> dry
> >> > >> > sump, big money up front hardly any later.. There are many
parts
> >> like
> >> > >> > that .. The best is usually cheaper in the long run.. Let's
face it
> >> we
> >> > >> > are out there to do 2 things, Have FUN and Break records!!! It
is
> >> pretty
> >> > >> > hard to break records if you are not running the best money can
buy,
> >> and
> >> > >> > I have the most fun breaking records.. Nothing like coffee in
the
> >> > >> > morning at impound :>) Parts i will not race without, dry
sump,
> >> EFI, 4
> >> > >> > valves per cylinder ( or more), slide throttles, and a trans
that
> >> has
> >> > >> > many gears.. the rest is usually not a record breaking
combination..
> >> > >> >
> >> > >> > Just my opinion at least.
> >> > >> >
> >> > >> > Regards,
> >> > >> >
> >> > >> > Dave Dahlgren
> >> > >> > Engine Management Systems
> >> > >> >
> >> > >> > < Commercial >
> >> > >> > For those of you that want slide throttles contact me off list
we
> >> make
> >> > >> > them here. Do EFI also Won 24 hr Daytona twice set pole etc.
and a
> >> > >> > zillion races in Pro Sports Car. Also G\GL and G\FL at
Bonneville
> >> went
> >> > >> > (215 in Australia) for many years.. Have setups for Ford yates
> >> > >> > head,Chevy 18 deg,Cosworth BD and YB, Porsche 911, ferrari 348,
> >> mazda
> >> > >> > 13b, and any custom thing you can think of.. but it is
expensive...
> >> > >> > <End Commercial >
> >> > >
> >> >
> >> >
> >
>
>
>
> L.E. Mayfield
> 124 Maximillion Drive
> Madison, Al. 35758-8171
> 1-256-837-1051
>
> http://www.hsv.tis.net/~mayfield
>
> DrMayf@AOL.com
> mayfield@traveller.com <<<<preferred
>
>
> Bonneville Land Speed Racer, '66 Hydroplane Drag Boat (390 FE)
|