The Guy that was running the Dynojet told me you should have Maximum air
pressure in your tire when pulling the dyno. Low tire pressure will produce
drag and lower output numbers. I had just let my air down to 25 psi and he
said my numbers would have been higher had I not done that.
I'm gonna pull again soon, with full air pressure and see if he was right.
When I was pulling my tires were wrinkling bad because of the low pressure.
I guess Sam is talking about increased traction do to lowering the PSI in
the tire??
__________________________________
Matt -- Mechanicsville, VA Y2K-HEMI
`00 Sport Plus 4.7L 5spd. 9 1/4 3.92 LSD
RC 2x4 Homemade air intake W/ K&N open element,
Traction Bars, Spring clamps, Mobil 1
BEST 1/4 14.57 @ 91.09 MPH (Hoosier Slicks)
BEST 1/8 9.19 @ 72.58 MPH (Hoosier Slicks)
BEST 60' 1.90
208 RWHP
285 RWTQ
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
-----Original Message-----
From: Stlaurent Mr Steven [mailto:STLAURENTS@mctssa.usmc.mil]
Sent: Wednesday, May 24, 2000 4:52 PM
To: 'dakota-truck@buffnet.net'
Subject: RE: DML: All my 1/4 mile times
Sam, would this work for the Dyno run or at 25lb that Matt did his Dyno run
with?
-------------------------------------------
Steven St.Laurent
Test Engineer
Test Branch, GSD, MCTSSA
MARCORSYSCOM, USMC
760-725-2506 (DSN 365-2506)
Work:mailto:stlaurents@mctssa.usmc.mil
Home:mailto:saint1958@home.com
-----Original Message-----
From: Sam Parthemer [mailto:rtdkota@yahoo.com]
Sent: Wednesday, May 24, 2000 9:29 AM
To: dakota-truck@buffnet.net
Subject: RE: DML: All my 1/4 mile times
Was 32 originally (right off the street). Dropped it to
18... That seems to be the magic number for everyone.
Sam
--- Stlaurent Mr Steven <STLAURENTS@mctssa.usmc.mil> wrote:
> What was your tire pressure setting? Was it 25lbs or
> 15lbs?
>
> -------------------------------------------
> Steven St.Laurent
> Test Engineer
> Test Branch, GSD, MCTSSA
> MARCORSYSCOM, USMC
> 760-725-2506 (DSN 365-2506)
> Work:mailto:stlaurents@mctssa.usmc.mil
> Home:mailto:saint1958@home.com
>
>
> -----Original Message-----
> From: Sam Parthemer [mailto:rtdkota@yahoo.com]
> Sent: Wednesday, May 24, 2000 8:56 AM
> To: dakota-truck@buffnet.net
> Subject: Re: DML: All my 1/4 mile times
>
> Terry, to get a better idea of how WELL you are doing,
> check out your 60' times.. I bet you are having a
> traction
> problem moreso now. My first run with the rockers was a
> 15.3 (usually ran 15.001 15.050, etc never in the 14s)..
> I
> thought WTF??? Then noticed my MPH was 2 mph higher in
> the
> 1/8 th and 1/4 ... Lowered tire pressure, BAM! 14.672...
> 14.7...14.71...
>
> Try doing a chart on that and posting it.
>
> Sam '00 RT
>
> --- Terry Herrin <therrin@isaac.net> wrote:
> > I've created a graph of my quarter mile runs to date to
> > help see how
> > I've improved over time. I left off one run where I
> was
> > in second
> > gear by mistake, as that was messing up the graph from
> a
> > performance
> > standpoint. <laughing> The graph is off my web page,
> > but here's a
> > direct link to it as well:
> > http://users.isaac.net/therrin/qtrtimes.jpg
> > At first I was disappointed that my last time out with
> > the 1.7 rockers
> > I didn't beat my best time. But the graph shows the
> > rockers make it
> > easier for me to run 14.8 now. The 15.1 run after the
> > 14.8's is
> > because I did the run without letting the engine cool
> > down some.
> >
> > Terry Herrin
> > 99 FR CC R/T
> > 14.769 @ 91.43
> > Wilmington, NC
> > http://users.isaac.net/therrin/dakota.html
>
>
> =====
> Sam '00 RT
> (14.667@93 mph)
>
> Get Paid to surf the Net!
> http://www.alladvantage.com/ref_center.asp?refid=GTS444
> Pay Anyone with a Credit Card. Checkout Paypals!
> https://secure.paypal.com/refer/pal=srp%40home.com
>
> __________________________________________________
> Do You Yahoo!?
> Send instant messages & get email alerts with Yahoo!
> Messenger.
> http://im.yahoo.com/
=====
Sam '00 RT
(14.667@93 mph)
Get Paid to surf the Net!
http://www.alladvantage.com/ref_center.asp?refid=GTS444
Pay Anyone with a Credit Card. Checkout Paypals!
https://secure.paypal.com/refer/pal=srp%40home.com
__________________________________________________
Do You Yahoo!?
Send instant messages & get email alerts with Yahoo! Messenger.
http://im.yahoo.com/
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:51:24 EDT
