Andrew,
The regards would potentially be very warm if using either system in a
closed under bonnet environment! To get the record straight, I think either
practice would be unacceptably hazardous and not only for the user!
Where have the people doing the nitro-methane thing been injecting the
nitro-methane into the engine and in what concentration. If into the
compressor inlet of the turbo, the potential for an under bonnet explosion
and fire are very high. Just the thing for those dull cold winter evenings
watching your pride and joy go up in flames!
The Nitrogen molecule in both Nitrous oxide and in Nitro-methane provides a
convenient base to hang off lots of easy detachable oxygen molecules. This
provides extra oxygen for combustion of greater quantities of your normal
fuel. As you correctly stated it is similar in function to nitrous oxide
use.
Normally the nitro-methane requires a lot of spark advance to compensate
for its "slower burn" characteristics. When used in conjunction with normal
pump fuel, I do not know for sure how much advance would be required, but
would expect it to be in the order of 5 - 10 degrees advance depending on
compression ratio and amount of boost used.
Unfortunately nitro-methane on its own is very unstable due to the easily
detachable oxygens and has a tendency to explode in some circumstances.
Things that can trigger an explosion are alkaline substances coming in
contact, shock, pressure or excess heat. To minimise its tendency to
explode, nitro-methane is always mixed with methanol in various percentages
by weight to minimise the explosion hazard. Percentages above 20%
nitro-methane by weight are progressively more unstable and require careful
monitoring of fuel temperature to minimise the potential for explosion. A
common by-product of nitro-methane use is an explosion in the blower, as
seen by some of the more speccy drag blow ups (a not uncommon event)! Also
a by product of nitro-methane combustion is nitric acid fumes (very
tasty!).
Either the nitro-methane or the straight oxygen use gives you the potential
for an explosion. The use of the oxygen could literally take out a lot of
people. (20 litres of fuel and damaged oxygen system in an accident? = Very
Big Bang!
But as they say the party goes on.
Cheers
Feral Errol
----------
From: Andrew Kubenk <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: nitros vs nitro methane
Date: Friday, June 09, 2000 1:03
ok heres one for all you techheads out there
i am thinking about setting up a extra fuel injector by using a washer
bottle
(i know it sounds dodgy but weve all seen it done, and work) to inject
nitro
methane into the motor before the turbo (no boost)to try to get the revs up
and on boost quicker. what do you listers know about this fuel and what
timing
changes, etc, etc are nessecary for it to work. the way i figure it the
setup
should work similar to nitrous but be a helluva lot cheaper, also, your
average
cop is not going to pick up on it especially when most SA cops are still
trying
to work out what a turbo is.
Also as a more general knowledge question, the reason that nitrous has such
an effect on power is due to the oxygen content, so why cant straight
oxygen
be use, i mean you can buy straight O2 from a gas supplier and i wanted to
know
if any of youse know what is so damned important about the nitrogen atom
being
part of this equation. i have asked heaps of people and the most common
responses
i get is a dunno or a shrug of the shoulders. hope the listers know more.
Thanking in advance
Warmest Regards
Andrew Kubenk
[EMAIL PROTECTED]
[EMAIL PROTECTED]
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