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[turbobike] Fw: BOUNCE turbobike@natvideo.com: Non-member submission from [David Morrill <dmorrill@wallace.fairchildsemi.com>]

Rick (gsxr1100@ptw.com)
Fri, 16 Apr 1999 07:04:27 -0700

Hey dave you have to post with the e-mail address you are subscribed with
or to make it easyer post from the same machine you are subscribed with
Rick



----- Original Message ----- > Diego,
>     Ballpark estimates:  The guys on this list can probably tell you how
out to
> lunch the numbers are, here goes:
>
>     The GPz turbo is good for 200cfm at 12000 rpm 10 lbs of boost on your
old
> bike.  Do you know what it made for HP?  I can use this to help get the
numbers
> more accurate by back calculated the volumetric efficiency..  I calced
145-155
> HP for an engine this size (assuming modern combustion chamber
design/volumetric
> efficiency) on a 70 deg day.
>     Your ZX-11 needs over 320 cfm for 10lbs of boost at 13000, looks like
over
> 230 HP.  It needs 200cfm stock (without a turbo).  The GPz turbo is a
stretch,
> I'm betting it's too small.
>     Try and scavenge a  turbo from a 2200cc car that redlined around 6500
rpm,
> this would be an exact match for your motor, cfm wise (317cfm at 10lbs).
A lot
> of the car turbos have built in wastegates, saves you $ there also.  Don't
be
> afraid to unclip the housings and turn them so they line up better for
your
> install, even re-mount the wastegate actuator if you need to.
>     Remember, these calculations are from a spreadsheet I made (I don't
actually
> know what I'm doing)  using PV=nRT, so they could be waaay out to lunch.
The
> numbers seem  to be pretty close.
>
> Good luck,
>     Dave.
>
> Dave Morrill wrote:
>
>
  ------------------------------------------------------------------------
> >
> > Subject: RE: [turbobike] ZX-11 turbocharged! - bigger turbo?
> > Date: Fri, 16 Apr 1999 05:51:51 -0400
> > From: "Astorga, Diego Marcelo" <diega@eastman.com>
> > To: "'Dave Morrill'" <david.p.morrill@fairchildsemi.com>,
> >      "'bike'" <turbobike@natvideo.com>
> >
> > Hi Dave!!!!!!!!!!!!!:
> >
> > These are the specs that you will need:
> >
> > ZX-11:
> >
> > Bore x Stroke: 2,99 x 2,58 (inches)
> > Max RPM:13000
> > Boost PSI: 10 (Don't laugh!)
> >
> > GPz 750:
> >
> > Bore x stroke (inches): 2,598 x 2,126
> > Max RPM: 12000
> > Boost PSI: 10
> >
> > If you need something else, just tell me...
> > As you see, I'm not lookin' for too much power...but, anyways, maybe the
> > next weekend I will try to find out a junkyard turbo...
> > Well, thanx for your attention...
> >
> > Read ya later guys!!....
> >
> > Diego!.
> >
> > Non-yet Turbocharged ZX-11! (Ha!)
> > > -----Original Message-----
> > > From: Dave Morrill [SMTP:david.p.morrill@fairchildsemi.com]
> > > Sent: Wednesday, April 14, 1999 2:46 PM
> > > To:   bike
> > > Subject:      [turbobike] ZX-11 turbocharged! - bigger turbo?
> > >
> > > Hello Diego,
> > >     Sounds like a good project.   I'm not sure, but I think that your
GPz
> > > 750
> > > turbo may be a little small.  If it is, you will probably be
disappointed.
> > > When swapping out a turbo from salvage and I can't get the compressor
map,
> > > I
> > > usually do a rough cfm calc based on boost, disp, and redline from
both
> > > engines
> > > and see if they are close.  If the turbo is too small you'll be way
off on
> > > the
> > > efficiency and have problems with surging, and probably detonation
from
> > > the
> > > extra air heating, and just plain poor performance.
> > >
> > > I don't know the specs on your bike, if you send them to me I'll
calculate
> > > the
> > > numbers for you.  Need displacement, boost that your GPz ran, and
redline
> > > on
> > > both bikes.
> > >
> > > You may be better off finding a junkyard turbo from a 1.5-2.0 liter
car,
> > > clean
> > > it up and try that.  I've gotten them in good shape for under $100.
> > >
> > > Good luck!
> > >
> > > Dave.
> > >
> > > Astorga, Diego Marcelo wrote:
> > >
> > > > Hi again!!!!:
> > > >
> > > > Hi Bill, as you say, I'm not lookin' for an astronomical boost and
an
> > > > astronomical waste of money for my pockets, understand?, currently I
> > > have
> > > > not got this number ($3000-$4000)... I'm lookin' for experience in
this
> > > kind
> > > > of works, Do ya know what I mean?...
> > > > It's not a matter if I can not gain 200-250...500 HP in the rear
> > > wheel...To
> > > > begin, 150 HP or lil' less, it's Ok for me, The biggest satisfaction
for
> > > me
> > > > will be plain, do, and ride my project. With the shortest investment
of
> > > > money... recyclin' what I've got..., Understand?
> > > > Well, I hope you can understand my english...and understand what I
wanna
> > > > do... and to finish my 1st. big project in this kind of work, I will
> > > need
> > > > all the help that everyone of you can give me.
> > > > I think that's all....
> > > >
> > > > Read ya later, Dudes...
> > > >
> > > > Diego!
> > > > > -----Original Message-----
> > > > > From: Bill Charette [SMTP:five0@skypoint.com]
> > > > > Sent: Tuesday, April 13, 1999 1:36 AM
> > > > > To:   Astorga, Diego Marcelo
> > > > > Cc:   'turbobike@natvideo.com'
> > > > > Subject:      Re: [turbobike] ZX-11 turbocharged!
> > > > >
> > > > > Diego.
> > > > >
> > > > > I think everyone on the list will tell you to save yourself the
hassle
> > > and
> > > > > just get a Mr Turbo kit.  They come engineered with everything you
> > > need to
> > > > > get it running right, as long as you're not looking for
astronomical
> > > > > levels of boost.  Figure $3000-4000 american.
> > > > >
> > > > >
> >
> -------------------------------------------------------------------------
> > > > >
> > > > > Bill Charette
> > > > > Five0@skypoint.com | http://www.skypoint.com/~five0
> > > DoD:#1915
> > > > > 1985 Yamaha FJ1100
> > > NRA:Life
> > > > > Newton's 17th law of Life in America:  For every action there is
an
> > > > > unequal and moronic overreaction. --R&T, 4/98
> > > > >
> >
> -------------------------------------------------------------------------
> > > > >
>