Nitropropane is not banned from use at SCTA/BNI events. The list of fuels in
the rulebook is there to illustrate SOME types of fuels which can be used in
place of legal gasoline.
Dan (more nitro is better, to a certain point) Warner
----- Original Message -----
From: Hyatt Engineering Ltd. <Hyatt-Engineering-Ltd@fuse.net>
To: John Beckett <landspeedracer@email.msn.com>; <ARDUNDOUG@aol.com>;
<land-speed@autox.team.net>
Sent: Sunday, June 04, 2000 6:40 AM
Subject: Re: MSD Detonation Detector and Cockpit Display Meter
> John,
> Back in the 50s some of the producers of nitro proposed using it in fuel
for
> on-highway vehicles, and did a lot of research into controlling knock to
> make it streatable. They used lab type "detonation detectors", high
> frequency accelerometers with data acquisition systems, to observe the
> knock. The conclusions were that nitromethane should always be used in
> blends with nitropropane (usually around 50/50). The nitropropane helped
> enormously in controlling the knock, for reasons that were not quite
> understood.
> While I bring this up primarily to point out that properly calibrated
> detonation detectors can certainly be useful with nitrous, (I suspect the
> commercially available units are just calibrated for more conventional
> applications, or are sized incorrectly and are "clipping" on the high
> amplitude content of the spectrum), it prompts a few questions and
> observations of my own:
> Why is nitropropane not included in the list of legal fuels ? By all
> accounts I can find it is much more stable. While it has a lower oxygen
> content than nitromethane and makes less power when run undiluted, anyone
> running a mix could just use more of it.
> Does anyone run undiluted or lightly diluted nitro on the salt ? Most of
> the folks I have spoken to run weak mixes, under 25% nitro, but I do not
> know how typical this is.
> Greg
>
> ----- Original Message -----
> From: "John Beckett" <landspeedracer@email.msn.com>
> To: <ARDUNDOUG@aol.com>; <land-speed@autox.team.net>
> Sent: Thursday, June 01, 2000 8:21 PM
> Subject: Re: MSD Detonation Detector and Cockpit Display Meter
>
>
> > Doug
> >
> > >From what little I know about these things they work great on street
> > cars...are marginal on race cars...and I would guess about useless with
> > nitro.
> >
> > John Beckett, LSR #79
> >
> > ----- Original Message -----
> > From: <ARDUNDOUG@aol.com>
> > To: <land-speed@autox.team.net>
> > Sent: Thursday, June 01, 2000 3:55 PM
> > Subject: MSD Detonation Detector and Cockpit Display Meter
> >
> >
> > > Group,
> > > Has any body out there used the MSD detonation sensor on nitro
that
> > has a
> > > readout in the cockpit for the driver to see. Chuck Salmen has one on
> his
> > > $um-Fun gas roadster and he likes it. What I don't know is how they
> would
> > > react to nitro which is on the verge of detonating at all times.
> > > Anybody had any experience?...............................Doug
King
> >
> >
> >
>
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