OK mayf
Where do we get this software and is it designed for drag racing...or will
it work with anything?
John Beckett
At 06:08 PM 4/21/99, Lawrence E. Mayfield wrote:
>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)
>
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