personally, i can hardly tell the difference between how fast cars are.
there are three classes of speed that i can recognize:
1. really slow cars that can barely make it to highway speed. e.g. my
neighbors 1979 diesel mercedes- i swear it is 30 or more seconds to 60 mph.
above 25 mph the acceleration is imperceptible.
2. 'fast' cars, from a miata to my probe GT to my cobra, these all feel fast
to me.
3. david bordens cobra. blew my freeking mind. makes a Z06 look like a
chevette.
-james c
----- Original Message -----
From: Michael R. Clements <mrclem@telocity.com>
Subject: RE: octane boost
> Grin well taken. The difference is slight enough, I'm not sure it would
show
> up in a 0-60 run or a 1/4 mile time, let alone on an autocross where one
is
> traction limited most of the time. The official word from Joey McBride at
> Panoz was that 91 octane will not make a significant difference in
> performance. His only concern was the fact that fuel oxygenates have a
> corrosive effect on aluminum (engine and fuel tank are both aluminum in
that
> car). I did feel _some_ improvement, but knowing placebo effects (and the
> fact that last evening near sundown was pretty cool = dense air charge) I
> can't bet my life on it. Experimenting was fun and educational but I'll
> stick to 91 octane for now.
>
> -- MRC
>
> -----Original Message-----
> From: owner-ba-autox@autox.team.net
> [mailto:owner-ba-autox@autox.team.net]On Behalf Of James Creasy
> Sent: Friday, August 24, 2001 11:57
> To: mrclem@telocity.com; Steve Kupper; Autocross; John J. Stimson-III;
> Jerry Mouton
> Subject: Re: octane boost
>
>
> > from 92 to 91 octane causes a slight decrease in power that becomes
> noticeable
> > under extreme acceleration.
>
> i will plan to drop the right foot a little sooner then this sunday. =)
>
> -james c
> OSP #74
>
>
> ----- Original Message -----
> From: Michael R. Clements <mrclem@telocity.com>
> To: Michael R. Clements <mrclem@telocity.com>; Steve Kupper
> <skupper@2xtreme.net>; Autocross <ba-autox@autox.team.net>; John J.
> Stimson-III <john@idsfa.net>; Jerry Mouton <jerry@moutons.org>
> Sent: Friday, August 24, 2001 7:17 AM
> Subject: RE: octane boost
>
>
> > I filled up with 100 octane race gas at the Union 76 yesterday. The
car's
> 11
> > gallon tank took 7.5 gallons. The gas didn't seem to make any
difference,
> > until I opened up the throttle and let the engine rev as I entered Hwy
> 280. At
> > wide open throttle the engine pulls a bit harder from 3k to 6k RPM. Not
a
> huge
> > difference, but enough to feel.
> >
> > This 100 octane stuff is probably overkill, but it does indicate that
the
> drop
> > from 92 to 91 octane causes a slight decrease in power that becomes
> noticeable
> > under extreme acceleration.
> >
> > Thanks for all the info,
> >
> > P.S. I found the following link with detailed info on RON, MON and other
> > things Octane:
> > http://www.seansa4page.com/resource/octane.html
> >
> > -----Original Message-----
> > From: owner-ba-autox@autox.team.net
> > [mailto:owner-ba-autox@autox.team.net]On Behalf Of Michael R. Clements
> > Sent: Wednesday, August 22, 2001 15:28
> > To: Steve Kupper; Autocross
> > Subject: RE: octane boost
> >
> >
> > True, but our cars are no longer getting 92 octane. So upping it back to
> 92
> > could have some benefits. That's what I intend to find out.
> >
> > -----Original Message-----
> > From: owner-ba-autox@autox.team.net
> > [mailto:owner-ba-autox@autox.team.net]On Behalf Of Steve Kupper
> > Sent: Wednesday, August 22, 2001 14:54
> > To: Autocross
> > Subject: RE: octane boost
> >
> >
> > I don't know about the computer on other cars, but on BMWs OBD II does
not
> > recognize octane level higher then 92, thus you will see no performance
> > increase unless you change the software.
> >
> > steve
> > -----Original Message-----
> > From: owner-ba-autox@autox.team.net
> > [mailto:owner-ba-autox@autox.team.net]On Behalf Of Michael R. Clements
> > Sent: Wednesday, August 22, 2001 2:03 PM
> > To: Jerry Mouton; Autocross
> > Subject: RE: octane boost
> >
> >
> > Jerry,
> >
> > Thanks for the info, sounds like race fuel at the pump is the more
> effective
> > solution.
> >
> > The engine is not knocking, yet I fear that since it's designed for 92
> > octane,
> > the engine's OBD II system is retarding the timing to avoid knocking, so
> I'm
> > losing power. The engine computer is supposedly designed to constantly
> > advance
> > the timing just shy of knocking, so theoretically it should respond to
> > higher
> > octane fuel. I want to try the higher octane stuff so see if I can feel
> the
> > difference in the seat of my pants. I figure it's worth at least one
tank
> of
> > the stuff, even if doesn't make any difference, just to satisfy my
> > curiousity.
> >
> > -----Original Message-----
> > From: Jerry Mouton [mailto:jerry@moutons.org]
> > Sent: Wednesday, August 22, 2001 13:45
> > To: mrclem@telocity.com; Autocross
> > Subject: Re: octane boost
> >
> >
> > Michael,
> >
> > If your engine is not knocking, getting higher octane gas won't
> > help you a bit. There is no additional energy or performance in
> > higher octane fuel. It just has a slower burning characteristic
> > that avoids preignition -- knock. My '64 Jaguar knocks a lot
> > with pump gas, so I have a neverending quest for octane.
> >
> > If you are getting preignition,
> >
> > 1. It's at Almaden and Foxworthy, near I87. The pump octane
> > is 100, which means it has a research octane rating of 106,
> > higher than the 100 research octane that used to be premium.
> > The Jag does not knock a bit with this fuel.
> >
> > 2. 104+ is the most effective additive, the others don't have much
> > effect. 104+ doesn't have very much effect, either. It kept
> > knock down to a minimum with the old 92 pump octane fuel, I have
> > not tried it yet with the 91 octane available now.
> >
> > Jerry
> >
> > Jerry Mouton mailto:jerry@moutons.org Laissez les bons temps
> > rouler!
> >
> > ----- Original Message -----
> > From: "Michael R. Clements" <mrclem@telocity.com>
> > To: "Autocross" <ba-autox@autox.team.net>
> > Sent: Wednesday, August 22, 2001 12:56 PM
> > Subject: octane boost
> >
> >
> > > Hi everyone,
> > >
> > > Based on the thread a little while back regarding 91 octane gas, I'm
> > wanting to ensure that I'm getting every last erg of output from my
> > not-so-large high revving V8 engine. So I'm wondering what are the
options
> > for getting real American true blue 92 octane or higher gasoline.
> > >
> > > Option 1: go to that gas station somewhere in the south bay (forgot
> where
> > it is) that supposedly sells 100 octane gas.
> > >
> > > Option 2: use a fuel additive to increase the octane of the gas in the
> > tank.
> > >
> > > Regarding option 1, just where is that gas station and what is the
> octane
> > of the gas it's selling?
> > >
> > > Regarding option 2, are there any products out there that actually do
> > raise the octane of the gas without causing side effects or damaging the
> > engine?
> > >
> > > Are there other options?
> > >
> > > I tried searching the web and found a few links like this:
> > http://www.goldeagle.com/cartips/octimpr1.htm but can't really tell if
> these
> > are "real".
> > >
> > > Thanks,
> > >
> > > Michael R. Clements
> > > mrclem@telocity.com
> > > Some find truth in beauty, others find beauty in truth.
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