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 >
> >
>
>
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