I've never been real successful at bad mouthing folks so Last year I simply
didn't say anything about the folks that dyno'ed the motor... but to say we
left a lot on the table would be a radical understatement...
I'm going up to watch the Rodeck be dyno'ed on the 6-7 of March... This of
course is with Dave's help and his engine builder Teddy Wenz. Just
getting on Dave's schedule is a bit of a task...
Dave really doesn't want to brag on this stuff but the boy has like 15
engines to dyno in a very short amount of time.... Very few of which are
low dollar motors... and a couple of which are unbelievable... till you
understand that it's normal stuff to him and the boys at Teddy's
place......to get this level of experience for an amateur racer is
tough.... but they both have taken an interest in trying to make this
happen and it's been an absolute gas to deal with them..... Hell I think I
have sent my car to New York one box at a time.... LOL.... we have all the
fuel and nitrous systems up there and the Ignition system.... Dave is
insistent on running it on the dyno exactly like it's going to run in the
car.... EXACTLY.... VERY COOL.
I'm trying to be very quiet about all of this... but to say I'm grateful
for his assistance would be another radical understatement.
Keith... ( Hey Dan... wake up... the shirts are coming in )
----------
> From: Dave Dahlgren <ddahlgren@snet.net>
> To: jkamo <jkamo@home.com>
> Cc: DrMayf <drmayf@teknett.com>; Bill Smith <WmTSmith@landracing.com>;
jonw@up.net; land-speed@autox.team.net
> Subject: Re: Dyno Capability
> Date: Friday, February 22, 2002 4:47 AM
>
> Joe take it easy will you...
> To me it looks like you dynoed the first engine to get the tune up
unfortunately the 5
> mile pull on the dyno was too long because you could not see that the
motor was having a
> problem.. Must of had one if it broke. So you used the data to tune the
second
> engine..same as anyone else would do on the dyno.
>
> When engines break on a dyno or because of being on one it is generally
the dyno operator
> not being on their toes. Mr. Turk is a great example of that. I saw the
dyno sheets from
> his engine. The 'operator' was running the engine so lean as to be
riduclous and making
> nearly full pulls to 9000 with the engine that lean to prove to Keith
that his carb was no
> good and he ought to by one from their shop.. Some how Keiths carb
managed to get re
> jetted 10 numbers lean on the primarys just before this so called test...
So go figure
> what do you think hurt the engine? The dyno or the operator? Then there
was the issue of
> the same person running the engine with wildly different coolant temps on
the front and
> rear of the engine...They never ran the nitrous on the dyno either for
that matter with a
> new setup. Five miles is too long a distance to 'test' an engine when I
can get the same
> info in 5 or 6 seconds and not hurt the engine. I am willing to bet if
you have made a
> couple of quick pulls of 5 or 6 seconds on the #1 bike engine you ran it
would still be in
> one piece right now as you would have seen what needed to change to keep
it from blowing
> up.
>
> The other issue with Mr. Turks engine and it's failure is running part
throttle at over
> 200 due to handling. The carb was just too lean and too big for that
nonsense, but only
> too lean at part throttle. We will be making some part throttle runs on
the dyno to make
> sure that goes away. So Joe it is not the dyno it is the operator that
kills engines. Mike
> Allen seemed to have no problem with his engine did he when he ran the
lakester. We made
> about 30 pulls on that one to 11500 rpm to get it where we wanted it. It
went 219 right
> out of the box on 1500 cc's ..Set the H/GL record on the first 2 passes
on the car.. We
> did have to go home after the third pass though broke the driveline,
engine ran just fine
> though. John Goodman broke 1 engine that was on a dyno but also ran the
same engine for
> years with no problems also after running it on the dyno..We have set 2
records in 4
> passes with that car in the past and the year it broke was the only time
the car ever made
> a pass that was not a license pass that it was not qualifing for a record
or making the
> return run for the record.
>
> I would personally like to be sure that the fuel pumps and everything
else is working
> right before I make a run and not have to discover it at the 3 mile mark
when the engine
> breaks but hey maybe that makes me either cautious or results oriented.
Personally I use
> Bonneville for the endurance testing and the dyno for the tune up..
>
> Dyno Dave Dahlgren
>
> jkamo wrote:
>
> > and another thing :):):)
> > why dont you ask how many people have
> > logged dyno time before Bonneville, and how
> > many of them had some kind of motor failure
> > running on the salt, its a big list, with big names
> > independent efforts and Corporate efforts
> >
> > by the way, the newly assembled motor qualified
> > over the record, and ran over the record on the
> > return run, in the wrong mile though, ran out of nitrous,
> > the tuned motor lost a rod, the parking lot junk motor
> > ran stronger, because I knew what basic tuneup it needed
> >
> > I am bull headed
> >
> > what in the heck does the tuneup sitting still
> > in the pits tell you about what the motor is
> > doing at speed, do you suppose that the
> > rear wheel hp is different?
> >
> > I have watched countless efforts with big dollar
> > backing, and all the dyno time in the world, come
> > to Bonneville and promptly scatter the motor
> >
> > flame me, but not like Keiths dyno tuned pistons
> > please
> >
> > love ya Keith, I have been holier than though at
> > Bonn. too, and have the pistons to prove it
> >
> > Joe :)
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