[s-cars] 1/4 mile results

[Andrew Lee Jackson]

Calvin,

My situation is complicated by the fact that my car is a Cq with an AAN
motor and an OE S2 intrument cluster.
The gears are shorter, but I'm still reading too high by about 1-1.5k in
the upper range.

I didn't hear back from anyone when I originally announced to the list
that my Cq was suffering from the same "tach-itis" that has infected a
few other s-cars.
Do these tach irregularities *ever* get resolved?

It's funny....
Even though I *know* that the rpm's are reading high, I can't deprogram
myself to shift after redline.
So (sub)consciously I switch up just as the needle smacks the false
redline, which keeps me comfy in the powerband through the gears.

Case in point:
This morning I walked on an '02 E55 from 0 to about 135km/h...
I was crawling on him until I switched to 3rd at "redline", then it was
bye-bye.


He must have known what a regular Cq was capable of because the look on
his face was priceless.  :-)



ALJ



-----Original Message-----
From: Calvin & Diana Craig [mailto:calvinlc at earthlink.net]
Sent: December 4, 2002 10:42 PM
To: maxin-and-relaxin at rogers.com; 'Chad Hall'; s-car-list at audifans.com
Subject: RE: [s-cars] 1/4 mile results


Andrew,

This doesn't surprise me....a lot of the tachs I have seen in S-Cars are
off.  Some are low, some are high.  Mine is a "little" high by about 3%.
This can be checked in two ways.  One is just simply by doing a
calculation which depends on your tire circumference, the other is to
get an inductive timing light with a digital tach.  Of course the
numbers I was quoting were for a 5 speed....with a 6 speed I "think" the
3rd gear is a bit different but I am not sure.

--Calvin


-----Original Message-----
From: s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com]On Behalf Of Andrew Lee Jackson
Sent: Wednesday, December 04, 2002 8:38 PM
To: 'Calvin & Diana Craig'; 'Chad Hall'; s-car-list at audifans.com
Subject: RE: [s-cars] 1/4 mile results


Hrm... Sounds like my car.  :-(


ALJ

-----Original Message-----
From: s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com] On Behalf Of Calvin & Diana Craig
Sent: December 4, 2002 9:56 PM
To: Chad Hall; s-car-list at audifans.com
Subject: RE: [s-cars] 1/4 mile results


Chad,

Actually your tach may be off if you think you are at 7200 rpm at 96
mph. You should be taching about 6600 rpm at 96.

--Calvin


-----Original Message-----
From: s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com]On Behalf Of Chad Hall
Sent: Wednesday, December 04, 2002 8:58 AM
To: s-car-list at audifans.com
Subject: [s-cars] 1/4 mile results


This is a multi-part message in MIME format.
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Thanks to all who checked out the results.  Calvin, I agree with you
about lost time shifting, but for a halfway decent track there was no
marker for the end of the 1/4 mile--it was impossible to judge how long
to stay in 3rd gear.  My best estimate put me crossing the mark at about
7200 rpm where my car makes NO power; shifting at 6700 would have put me
in 4th in the high 4k rpm's where it makes really good power.  What's
weird is 1st pulls strong, 2nd is a little less, 3rd starts to feel
kinda weak, then 4th pulls strong again almost like a 50 shot of NOS.
The loud factor from Bubba in the next lane was definitely an issue.  I
actually missed 2 calls to stage because nobody could hear the
announcers.  The tires I was running were Yok AVS 245/45ZR16 and gave me
too much grip.  Anyone with the MTM setup notice a 3rd gear weak/4th
gear strong issue?  Nothing way out of line, I just didn't expect much
pull in 4th @ 100 compared to what 3rd gave me.

Thanks,
Chad Hall
--

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