im trying to decide how to tune for HP and torque.
borden's car hooked up great with 475 ft lbs and 500 HP, which feels really
fast in a 2000lb car. the steering was very twitchy, but if you could hold
the wheel steady under the 0.9 g's of acceleration it went straight. this
is about the limit of a stock 302 block and tranny if you want longevity.
the stronger 351 block stroked to 392 will support 800+ hp reliably, but
thats probably overkill for autox. (not to mention my drum brakes =))
ive seen two Z8's on the road in the last month. how many of these have
they made??
-james c
----- Original Message -----
From: Patrick Jones <axng4me@yahoo.com>
To: <ba-autox@autox.team.net>
Sent: Tuesday, January 02, 2001 6:54 PM
Subject: RE: hp, torque, and autox
> Viper motors - ahh yes. Mine pulls from about 800 rpm to 6000 and the
> dyno shows 428 lb-ft at the rear wheels. Ahh - now, keeping that
> pointed the right direction is a challenge. I think that's where the
> driver thingy comes in :-) (witness ASPL this year!)
>
> patrick
> '00 Lotus 'with alot less torque' Elise
>
> --- Kevin Stevens <Kevin_Stevens@Bigfoot.com> wrote:
> > a) Propulsion isn't everything in autox.
> >
> > b) If your gear ratios are tight enough to keep in the powerband, it
> > doesn't
> > really matter
> > whether it is down low or up high.
> >
> > c) What ultimately matters, torque-wise, is not whether it's high or
> > low but
> > how wide it
> > is. As you keenly observe, at least in Stock we have to live
> > with the
> > factory gears.
> > How much of 20-70mph is within the engine's powerband is the
> > key. Points
> > deducted
> > for having to shift to keep it there.
> >
> > That's why I love the LS1 and Viper motors - the torque curve is so
> > flat that
> > they're at 80% of peak torque throughout almost that whole speed
> > range. Doesn't
> > get much better than that without going electric.
> >
> > KeS
> >
> > > -----Original Message-----
> > > From: owner-ba-autox@autox.team.net
> > > [mailto:owner-ba-autox@autox.team.net]On Behalf Of James Creasy
> > > Sent: Tuesday, January 02, 2001 15:20
> > > To: ba-autox@autox.team.net
> > > Subject: hp, torque, and autox
> > >
> > >
> > > http://www.vettenet.org/torquehp.html
> > >
> > > i found this to be an excellent description of torque and
> > horsepower in
> > > cars.
> > >
> > > what i took away from the article is that torque is what works if
> > you cant
> > > be in the right gear for high revs. since we dont shift much in
> > autocross
> > > and rarely hit the power peak, mid range torque should rule the
> > roost.
> > >
> > > so how did a torqueless S2000 win A-stock at nationals this year?
> > i imagine
> > > because the redline is so high that it doesnt have to shift and
> > lower the
> > > effective torque. it doesnt pull harder, but it pulls LONGER. so
> > it ran
> > > the course in 1st, vs. andy's MR-2 in 2nd and so had more effective
> > torque?
> > >
> > > -james c
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