land-speed
[Top] [All Lists]

Re: Dyno Capability

To: ddahlgren@snet.net
Subject: Re: Dyno Capability
From: jkamo <jkamo@home.com>
Date: Fri, 22 Feb 2002 06:07:44 -0700
Yes, dynos are great, my fodder was not
mean to diminish the vital need for dyno
testing,  my point was that its not all about the
dyno time, its also about the ability to garner
experience ON the salt

Dyno's are great, originally talking about the
practicality of spending time on them on the salt

Its not all about the dyno time, is what I am trying
to say


Grib everyone knows dynos are vital, but having them at the venue
after you show up to race is abit different,

what the heck, we could start something,  maybe Nascar,
Indycar, NHRA, and the rest will follow  our lead


Joe
Dave Dahlgren wrote:

>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 :)

///  unsubscribe/change address requests to majordomo@autox.team.net  or try
///  http://www.team.net/mailman/listinfo
///  Archives at http://www.team.net/archive/land-speed


<Prev in Thread] Current Thread [Next in Thread>