Re: dyno results and car update

[MO <micher@xxxxxxxxxxxxxxx>]

 I guess if it was important to you, you could engine dyno and tune
for best HP andTQ then after putting it into the car , dyno  at the
rear tires and tune again for your particular parasitic
loss. ...................MO

On Oct 4, 9:03 pm, Doug J <63sprtf...@xxxxxxxxx> wrote:
> Seems to me, that the best use of a dyno is for tuning.  The hp, tq numbers
> are fairly arbitrary  to me.  Gives you a good ball park number though.
> I've done a fair amount of testing with the Harley, mostly for tuning
> purposes.  I've got a big inch engine, big cams, ect, and thats a great way
> to tune, as you can make changes in the same basic atmospheric conditions.
> I wish it was as easy to put the '63 on a wheel dyno and get that thing
> tuned to it's best.  Ofcourse, the Harley is tuned with my laptop,,, as
> opposed to a screw driver and wrench for the Plymouth.  Sadly, I'm better
> with the laptop.
>
> Doug,
> '63 Sport Fury 'vert
>
>
>
>
>
> On Thu, Oct 4, 2012 at 10:25 AM, Gary Pavlovich <glpavlov...@xxxxxxx> wrote:
> >   277 rear wheel torque
> > 268 rear wheel HP
>
> > Corrected numbers for pre-coffee brain fog...see, what I mean about
> > distortion?
> > Gary Pavlovich :0I
>
> >  *From:* Gary Pavlovich <glpavlov...@xxxxxxx>
> > *Sent:* Thursday, October 04, 2012 8:21 AM
> > *To:* 1962to1965mopars@xxxxxxxxxxxxxxxx
> > *Subject:* Re: dyno results and car update
>
> >   I do not know the % of loss but bottom line is not to get disappointed
> > if the number is not as high as the next guy as there is no possible
> > standard of measurement between dynos/atmospheric temps/engine performance
> > on a given day etc...the real question is does the on street or on track
> > performance satisfy you?  At the track, if you win your race(s) the “dyno
> > numbers” are pretty much irrelevant.
> > Many "numbers” are erroneous, misleading, and at best are a guideline –
> > key word is guideline; another tool in your war chest of Mopar knowledge
> > and experience.  Rear end ratios and high stall convertors will also skew
> > the numbers and prevent accurate readings or comparisons.
>
> > For example, my rear wheel dyno numbers on my 67 Dart w/mild transplanted
> > 340 build (284 Cam, LD340 intake, 850cfm Thermoquad, stock pistons &
> > valves, 1 5/8” Headers, 2.5” exh. pipe, head work...)
> > 277 rear wheel HP
> > 268   “       “       “
> > from all the “other guy’s” numbers I should be ashamed to drive down the
> > street, much less hit the track.  However, I turned 12.8 @106mph in the
> > quarter mile (even let off the throttle prematurely on that run) and beat
> > every car I raced that night (obviously all the paired cars were under
> > 12.8...)
>
> > Gary Pavlovich
>
> >  *From:* Dodger7...@xxxxxxx
> > *Sent:* Thursday, October 04, 2012 6:32 AM
> > *To:* 1962to1965mopars@xxxxxxxxxxxxxxxx
> > *Subject:* Re: dyno results and car update
>
> >  Once apon a time I was told that the biggest loss was the rear
> > differential, and that the 90 degree turn of the power was the culprit more
> > so than the transmission
>
> >  In a message dated 10/4/2012 12:21:35 A.M. Central Daylight Time,
> > mic...@xxxxxxxxxxxxxxx writes:
>
> > WoW! that nuch parasitic loss??  I wonder if some kind of friction
> > reduceing  manual tranny (4 speed)  lube and rear end lube would make
> > a noticable difference? .........................MO
>
> > On Oct 3, 10:50 pm, Richard Kinsley <leroar.kinsley...@xxxxxxxxx>
> > wrote:
> > > As an example of dyno numbers, back in '63 I had my '59 Ply Sport Fury
> > 318
> > > power pack dyno tuned in Garden Grove, CA.  The horsepower was about
> > 112hp
> > > at 60mph in high gear with 2:94 rear and 14" tires.  They didn't run it
> > up
> > > like they do now and find the max.  There is a percentage of power loss
> > but
> > > it varies with the application. Some drive lines are more efficient than
> > > others. I think a 15% loss is fairly good.
>
> > > Rich Kinsley '64 Dodge Polara LeRoar 4dr 324 poly w/goodies
>
> > > On Wed, Oct 3, 2012 at 12:25 AM, MO <mic...@xxxxxxxxxxxxxxx> wrote:
> > > >  I like your Plymy and what you are doing with it.
>
> > > > I am afraid to admit how old school I am, but how does dyno at the
> > > > rear wheels translate into numbers on an engine dtno?  I know the rear
> > > > wheel dyno reads less but I am not familiar with  the numbers you give
> > > > to know just what kind of power your engine has. ..................MO
>
> > > > On Oct 2, 2:26 pm, SL <slid...@xxxxxxxxx> wrote:
> > > > > I've finally had some time to work on the car in the last few weeks
> > and
> > > > > drive it a bit before the snow falls here.  Installing an MSD fixed
> > the
> > > > > starting issues...bad coil or orange box was the culprit everything
> > else
> > > > > checked out.  The 440 six pack got some tuning on the dyno and she's
> > > > > running really good now.  355hp and 383tq with 38 degress of timing.
> > > > >  Elevation here is ~3500'
>
> > > > > In addition to the planned alterktion install I'm starting to put
> > > > together
> > > > > my plans for the Megasquirt EFI.  I may keep it a six pack by going
> > with
> > > > > the following intake from F&B Throttle Bodies.
> > > >http://www.fbthrottlebodies.com/images/photos/440%206bblsys.gif
>
> > > > > Cheers,
> > > > > Stacy
>
> > > > >  IMG_20120924_112031 (Large).jpg
> > > > > 103KViewDownload
>
> > > > >  IMG_20120921_090422 (Large).jpg
> > > > > 141KViewDownload
>
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> > Please address private email -- email of interest to only one person --
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> > 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
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> >http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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> --
> Doug,
> '63 Sport Fury 'vert- Hide quoted text -
>
> - Show quoted text -

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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!

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