Excellent for a heavy weight vehicle. Now for that 14 plus time...hmm.
Where's that supercharger at?
-------------------------------------------
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: Charles Wyman [mailto:cewyma@Roushind.com]
Sent: Thursday, July 20, 2000 10:10 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: Milan trip...HELP!
>If you like, could you send all the info. on your time slips for the 16.08
>run and the 16.12 run (and the others from last night would be helpful as
well
>... reaction times aren't needed).
Well I'm at work right now and don't have my time slips to give you...maybe
by tomorrow. My 16.08 times are posted on my website.
www.geocities.com/papa_c_d/
>Just from the information from your post, there should have been some
>gains from the addition of the PCM (0.20 at least). I would not think that
>the Dynomax would add very much (100ths) as the stock exhaust is a fairly
>good one.
>I would experiment with the gapping of the Autolites starting at 0.035
>but again gains will be, if any, very small (100ths).
The Quick-D is supposed to give me ~30HP also. I'm going to re-gap the
plugs very soon to 0.035. Any suggestions on how to do this without tapping
the end on something hard to make the gap smaller?
>Were your burnouts and launches (torque converter load-up and rpm)
consistent
>with the one on your 16.08 run.
When I ran a 16.08 it was the first time I ever ran at a drag way. I had a
very poor reaction, the O/D was on, and I didn't get my RPM's up at all
during launch...I just let off the brake and stomped the gas. In all of my
16.1X runs I got the RPM's up only to about 800-1000 RPM...any more and I
start spinning the rear wheels. It doesn't bog down at all during
launching.
>Did you reset the MP computer before you started racing.
I reset the MP PCM when I installed it about 2-3 weeks ago, but did not
reset it right before racing.
>How close was the track surface conditions to when you ran the 16.08.
Track conditions were very similar both times. Weather was 70-75 F and
during the 16.08 it was sunny the other it was overcast.
>Were tire pressures the same.
Tire pressure during the 16.08 was around 30. The other were around 18-20.
>Were you going through the traps at/near the same rpm
Trap RPM's I'm not sure about. I never really kept track.
>Your Durango is extremely heavy (4800+ lb. ?) and your tires are nearly
30" in diameter. If you replaced the stock tires, what are the diameters
of the stock tires?
I think my Durango actually weighs a little more. I believe when they give
weights on vehicles they have to give an average. Since I have added the
3rd row seats, leather, running boards, 4 wheel ABS, 5.9L, etc...I think the
weight is around the 5,000lb mark. And, with my weight (190 lbs.) and the
half to 3/8ths of a tank of gas it's probably closer to 5300 lbs. The
Goodyears (275/60/R17)I have on there now are about 30" (29.9" to be exact).
My stock tires were 31"x10.5"
>Off hand, without having dyno figures to analyze and having info. on any of
>the above, my guess is that tranny slippage is playing a large part.
Do you think a shift kit is needed?
>Bob. Ont, Canada.
>'97 Dakota CC, 5.2L, 4x2, 3.92 SG, auto., 4265 lb.
>PB: 14.737 @ 91.75 9.364 @ 72.95
______________________________________________________________
Chuck
'00 Flame Red Durango SLT+
5.9L, 4x4, 3.92 LSD, R/T wheels (Goodyear Eagle GT II 275/60/R17)
2.5" Dynomax Magnum Race Series cat back exhaust, Mobil 1 oil & filter
Quick-D T-body & intake, Mopar Performance PCM, Autolite 3923 plugs
best 1/4 mile (stock): 16.08 @ 84 mph
www.geocities.com/papa_c_d/
cewyma@roushind.com
______________________________________________________________
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:52:47 EDT