Richard, they made around 250 old Z19 Zinks. They could run to a 700#
minimum with 150# drivers+ballast and I used to make min weight with
no ballast at 180#.
Chuck
______________________________________________________________
From: "Richard Schmidt" <[EMAIL PROTECTED]>
Reply-To: [email protected]
To: <[email protected]>
Subject: Re: [F500] RE: Min weight blues
Date: Sun, 23 Apr 2006 20:38:23 -0500
>Chuck,
>
>I didn't say you couldn't build a Kawasaki powered car for a 180
lb driver
>that would come in around the 700lb mark. I said that it will be
hard to get
>the old existing cars down to that weight. The whole idea was to
bring out
>the old Kawasaki powered cars and make them competitive in road
racing
>again. Not going to happen !
>
>As Jay said, with 130lb driver, you might get down to the 700lb
mark, but
>unless your are going to hire a highschool teenager to drive your
car, it
>will be very difficult indeed.
>
>I have not doubt that a chassis can be made that will do the job
at the
>weight required for the Kawasaki, but as Jay said, it may still
not be
>competitive because of the lower torque.
>
>I also looked at the possibility of overboring to get to 500CC,
but it just
>doesn't look practical. Kawasaki built and raced snowmobile
engines with
>four port cylinders and twin plug heads and were quite
successful. It is
>possible to get power out the engine, just not is stock form.
>
>I don't have any issues with the CRB lowering the minimum weight.
It's a
>nice jester.
>
>Richard
>
>
>----- Original Message -----
>From: "Chuck Voboril" <[EMAIL PROTECTED]>
>To: <[email protected]>
>Sent: Friday, April 21, 2006 12:06 AM
>Subject: [F500] RE: Min weight blues
>
>
> >
> > There are British
hillclimb and sprint(hillclimb on a level
> > track) cars being built with 97" long WB and 255 HP MC
motors that
> > only weigh about 550# w/out driver. A kaw motor is about
100 pounds
> > lighter than the bike motors going in those cars. Add 18
pounds for a
> > primary and secondary clutch and that's still 80 pounds
lighter.
> >
> > No coil springs and heavy 'ol shock absorbers either :->
> >
> > I would be extremely embarassed if I could not modifiy
or build a
> > new Kaw powered car to 700# complete with fire system and
5 gal fuel
> > cell.
> >
> > There
were 250 Zinks built and most had to run considerable
> > ballast(30+ lbs.) to road race with lightweight drivers
in the 150
> > pound category to meet 700#.
> >
> > Those old cars did not have the advantage of present day
lightweight
> > CNC'd billlet uprights ,hubs, or hollow steel rear axles,
either.
> >
> > Bulding a lightweight car is about the
most technically
> > non-challenging thing one could ever do.
> >
> > If you haven't got the skill or you weigh 300 pounds, then
stick with
> > a 494 or 493.
> >
> > As to high compression Kaws, I know the guys that built and
road raced
> > motors like that.
> >
>
> The AMW's still kicked their rumps like they were tie
d to a
> > tree when they came on the scene.
> >
> > As to Solo, in my personal opinion, the
current min Kaw weight
> > probably will not change.
> >
> > Chuck Voboril
>
> __________________________________________________________
____
> >
> > From: "Jay Novak" <[EMAIL PROTECTED]>
> > Reply-To: [email protected]
> > To: <[email protected]>
> > Subject: RE: [F500] 440 vs 494
> > Date: Thu, 20 Apr 2006 23:58:26 -0400
> > >I agree that it will be very difficult to do a 700 Lb
Kawasaki
> > powered car.
> > >It could be done with a 150 to 170 lb driver but
still not
> > easy. I think
> > >the 494 or the 493 will be very tough to beat because
they have a
> > very wide
> > >powerband & a ton more torque than the Kawasaki.
> > >
> > >My 1st 80" wheelbase car weighed 715 with me in it &
I weighed
> > about 165 at
> > >the time with no real effort at trying to make the car
light, just
> > a super
> > >simple car.
> > >
> > >If I do design a new car & I am thinking about it,
the target
> > weight will be
> > >550 lbs without driver & fuel. I know this is very
do-able with a
> > lot of
> > >design integration. A couple of my older cars were right
there so
> > I know it
> > >can be done.
> > >
> > >Way to much on my plate right now but maybe next year.
> > >
> > >
> > >Thanks ... Jay Novak
> > >
> > >
> > >-----Original Message-----
> > >From: [EMAIL PROTECTED]
>
> >[mailto:[EMAIL PROTECTED] On
Behalf
> > Of Richard
> > >Schmidt
> > >Sent: Thursday, April 20, 2006 9:24 PM
> > >To: [email protected]
> > >Subject: Re: [F500] 440 vs 494
> > >
> > >This is great news, but (you just knew there would be
a but), I
> > still don't
> > >think it will even the playing field in road racing.
> > >
> > >First of all, it is not that easy to lose 50 lbs. Just
ask anyone
> > on a diet
> > >! All of the cars out there are designed to weigh
750 with a
> > reasonable
> > >weight driver. I don't see how you can get a car down
to the 700
> > lb mark
> > >and not reduce the structural integrity. When I first
raced my
> > F500 with the
> > >Kawasaki, I had to add ballast. That all changed with
the change
> > over to
> > >four link suspension and the added bodywork to get
the aero
> > working.
> > >
> > >I am not the familiar with the new chassis, but I suspect
they are
> > all being
> > >designed for the 493 engine and thus would not be able to
get down
> > to the
> > >700 lb min.
> > >
> > >Just one more small change, allow increasing the
compression ratio
> > to about
> > >9:1 on the Kawasaki. This would be so easy, just mill
some metal
> > off the
> > >head, reshape the dome, and presto, a 90 HP Kawasaki !
> > >
>
> >Ofcourse some clever chassis designer, Jay are you
listing
> > ?, could build a
> > >new chassis just for the Kawasaki using all the
improvements
> > learned over
> > >the years, but apply it to a car designed for a
engine from
> > yesteryear.
> > >
> > >Richard
> > >
> > >
> > >----- Original Message -----
> > >From: "Stan" <[EMAIL PROTECTED]>
> > >To: <[email protected]>
> > >Sent: Thursday, April 20, 2006 3:13 PM
> > >Subject: Re: [F500] 440 vs 494
> > >
> > >
> > > > Effective May 1st, Kawi's can run at 700 lbs for even
more fun!
> > > >
> > > >
> > > > Stan
> > > >
> > > >
> > >_______________________________________________
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