RE: Jetting Changes in Cooler Weather?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: Jetting Changes in Cooler Weather?



This may sound a bit goofy but it seemed to work. I was adding the total 
orifice area of all the jets and using this as a means to 
increase/decrease the jetting. The night we did so well I have the temp 
as 43deg and I know the air was very damp. This is good for electrical 
connections! I started the night at .488" total at WOT and ended at 
.496" total at WOT. If you have an Eddy chart it's right in between the 
18/23 and 22 positions for the 1404 carb. The rods went from 6552 to 
6347 on .089 primary jets with plain springs. The sec jets went from 
.095" to .098". I used .33 pump nozzles and set the accel pump at maxon 
the lower settings and changed to mid for the final settings. I picked 
up .14sec that night in the 1/8th. My 60' dropped .088sec. I know the 
hardcore racers may think this primitive but we have fun:-) Right Ollie? 
I only got to race twice this year but I hope to be able to pick it up 
again next season. Until then 'ol LeRoar will be at the Strategic Air 
and Space Museum for 6 months , with Paul's '63 Plymouth. Ain't it nice 
to know we are represented  for a change!!!

Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
=====================================================================
Steve Mick wrote:
> 
> Mike , we are at about a 2000 ft altitude.  I am certainly no expert, 
> but 
> lower ET at night when cooler and more air moisture than during that 
> same 
> day. Bracket racers have to lower their dial in.  Maybe it has to do 
> with 
> more air density than water burning?  I don't 
> know.....................................MO
> {Steve Mick}
> http://stevemick.shutterfly.com/pictures#Part%202
> ----- Original Message ----- 
> From: "mike creglow" <mcreglow@xxxxxxxxx>
> To: <1962to1965mopars@xxxxxxxxxx>
> Sent: Monday, October 18, 2010 9:44 AM
> Subject: Re: Jetting Changes in Cooler Weather?
> 
> 
> ${top_text_ad}
> low temp and low altitude means dry air.  less water in the air the
> better.  last time i checked, you cannot burn water.
> 
> 
> 
> On Mon, Oct 18, 2010 at 5:13 AM, Donald Gallimore <dongallimore@xxxxxxx> 
> 
> wrote:
> > I had low temp, low effective altitude but not sure about the "grains of 
> > 
> > water"
> > in the air. Anyway, it looks like when the air gets denser and cooler, 
> > richen
> > up the carb seems to be the way to go. I accept that it's a trial an 
> > error
> > process.
> >
> > Akron Don Gallimore
> >
> >
> >
> > ----- Original Message ----
> >> From: MO ( Steve Mick) <micher@xxxxxxxxxxxxxxx>
> >> To: 1962to1965mopars@xxxxxxxxxx
> >> Sent: Sun, October 17, 2010 11:02:37 PM
> >> Subject: Re: Jetting Changes in Cooler Weather?
> >>
> >>
> >> A difference in elevation will make a difference - maybe more so than 
> >> air 
> >> temp
> >>if humidity being the same. Rich's jetting made quite a difference, but 
> >>air
> >>moistness was much higher that night---cool and damp makes things GO!
> >>.......................MO
> >> {Steve Mick}
> >> http://stevemick.shutterfly.com/pictures#Part%202
> >> ----- Original Message ----- From: "Rich Kinsley" <rlkinsley@xxxxxxxxx>
> >> To: <1962to1965mopars@xxxxxxxxxx>
> >> Sent: Sunday, October 17, 2010 9:50 PM
> >> Subject: RE: Jetting Changes in Cooler Weather?
> >>
> >>
> >> >
> >> > I was running test and tune in 47deg weather and had been in probably
> >> > 80deg before. Steve Mick was helping me and we kept increasing jet 
> >> > sizes
> >> > till we started going backwards in ET. I know we jumped up maybe 3
> >> > sizes. I can look it up and post it when I find it later. This was on 
> >> > my
> >> > 318poly w/ dual quad 500 Eddy's.
> >> >
> >> > Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
> >> > ===================================================================
> >> > Donald Gallimore wrote:
> >> >>
> >> >> I=A0dynoed and adjusted my jets during 90 degree weather.=A0=A0Friday 
> >> >> I
> >> >> rac=
> >> >> ed my =0ABelvedere in 50 degree weather with a reported effective
> >> >> altitude =
> >> >> of 650 feet =0Aversus 2000-3000' in the summer heat.=0A=0ASeemed to be
> >> >> down=
> >> >> on power.=A0 Should I consider=A0going up a jet size(s)=A0in this
> >> >> =0Acoole=
> >> >> r weather situation?=0A=0A=0AAkron Don Gallimore
> >> >
> >> >
> >> >
> >> > Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
> >> > http://1962to1965mopar.ornocar.org/ml-kinsley64polara.html
> >> >
> >> >
> >> > ----
> >> > Please address private mail -- mail of interest to only one person --
> >>directly to that person. I.e., send parts/car transactions and 
> >>negotiations as
> >>well as other personal messages only to the intended recipient, not to 
> >>the
> >>Clubhouse public address. This practice will protect your privacy, 
> >>reduce 
> >>the
> >>total volume of mail and fine tune the content signal to Mopar topic. 
> >>Thanks!
> >> >
> >> > 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
> >> > http://www.1962to1965mopar.ornocar.org/mletiq.html and
> >>http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
> >> >
> >> >
> >>
> >>
> >> ----
> >> Please address private mail -- mail of interest to only one person --  
> >> directly
> >>to that person. I.e., send parts/car transactions and negotiations as 
> >>well 
> >>as
> >>other personal messages only to the intended recipient, not to the 
> >>Clubhouse
> >>public address. This practice will protect your privacy, reduce the 
> >>total 
> >>volume
> >>of mail and fine tune the content signal to Mopar topic. Thanks!
> >>
> >> 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
> >> http://www.1962to1965mopar.ornocar.org/mletiq.html and
> >>http://www.1962to1965mopar.ornocar.com/general_disclaimer.ht---------
> >>
> >>
> >>
> >
> 
> ${bottom_text_ad}
> ----
> Please address private mail -- mail of interest to only one person --  
> directly to that person.  I.e., send parts/car transactions and 
> negotiations 
> as well as other personal messages only to the intended recipient, not 
> to 
> the Clubhouse public address. This practice will protect your privacy, 
> reduce the total volume of mail and fine tune the content signal to 
> Mopar 
> topic.  Thanks!
> 
> 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
> http://www.1962to1965mopar.ornocar.org/mletiq.html and 
> http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
> 
> 



Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
http://1962to1965mopar.ornocar.org/ml-kinsley64polara.html


----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. 












Home Back to the Home of the Forward Look Network


Copyright © The Forward Look Network. All rights reserved.

Opinions expressed in posts reflect the views of their respective authors.
This site contains affiliate links for which we may be compensated.