Geoff:
Not being an expert Drag Racer but a "Wanna Be"(wish that I didn't like it
so well).... I have the same setup on my 74 Six with the BPNW S2 like cam
with stock Exhaust system front to back and it feels like the best shift
point is a touch over 4000, after that I feel I am wasting time. Every Cam
has it's best shift point and I would like to be for certain of mine, I just
havn't found a Scientific place to safely find out. I guess you've tested
your shift points enough to pick 5200? Any of you Racers care to enlighten
me/us on finding the best shift point?
TIA
Brooks
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
Behalf Of BigOldWumper@aol.com
Sent: Monday, September 08, 2003 11:56 PM
To: Gameparker@cs.com; 6pack@autox.team.net
Front wheel drive cars, like the Honda, don't have enough traction until
higher speeds, which is why the Civic caught up in third gear, where it was
probably going between 55 and 85 mph in that gear, and having a horsepower
advantage--unless your motor is really suped up. A rolling start like you
described
will even off the differences between a front and rear wheel drive car. The
differences in aeordynamic drag would be minimal, if any differences at all
exist.
Both cars would need around 50 horsepower to overcome drag (including
rolling
resistance) at 85 mph. The SI probably has a drag coefficient of around .3,
the TR6 around .44 from what I understand, but the Honda has more frontal
area
(wider and taller) as well as more weight.
Be careful not to get any tickets...
-Sean
In a message dated 9/8/2003 11:34:02 AM Pacific Daylight Time,
Gameparker@cs.com writes:
> List,
> I was on an abandoned road project today investigating my 0-60 times when
a
> Civic SI with probably the same idea in mind pulled up and gave me the
nod.
>
> With no lights or anything we both got off to a slow start, neither one
> wanting
> to be clearly the first away. I was clearly and cleanly pulling away from
> the
> SI today in first and second gears - shifting when he shifted which for me
> was about 5200rpm @ 55mph. We both shifted into third and he starts
pulling
>
> past me. By the time we shifted into 4th, he was 2 lengths ahead of me
and
> slowing down (challenge over). I felt proud but puzzled how my ratios
could
> have
> caused something like that. Ideas how to gain that back? Gears, rear
end,
> fuel, exhaust? I am already running: twin SU's with O2 matched needles
and
>
> K&N's, fast road cam, headers but with stock exhaust, electric fan and
head
> milled
> to about 10:1. Would a 3rd SU and/or a larger exhaust really make a
> difference?
> Thanks,
> Geoff Parker
> 74 TR6 (supposed to be running the engine in, but you know how that
goes...)
> P.S.: I really do not, in any way condone, street racing. It is reckless
> and irresponsible. I was in a controlled environment with no outside
> influences.
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