Nitrous

[David Cooley]

The way I look at it (my opinion... remember that everyone has one...   ;-)  )
Is turbocharging os more effective and is a better option.  A properly 
sized/designed turbo system WILL give you 400 lb/ft at 2000-2500 RPM  It is 
repeatable, is not subject to dirt getting into a solenoid valve and 
sticking it open, causing the motor to grenade from an unchecked supply of 
N2O with insufficient fuel.  The turbo is always there regardless of how 
many runs you have made.
As far as longevity, turbocharging will be easier on the motor, as it's not 
a sudden "jump" in cylinder pressures/temperatures.  It's much easier to 
tune for than N2O, as a 20 degree variance in ambient temp won't make a 
20+% variance in bottle temperature etc.  With an electronic boost 
controller (easily built for $30.00 plus a GN boost solenoid) the boost 
becomes variable from the cockpit on the fly...  (And fuel metering, if the 
ECM/PCM is programmed properly and has a 3 bar MAP sensor, will follow 
boost properly!).



At 05:00 AM 12/18/1999 -0500, you wrote:


>A couple of general rules I have learned over the years about turbocharging
>and nitrous .
>1) Make sure the fuel pump and injectors are big enough, fuel pump is often
>overlooked use a fuel pressure guage to confirm
>2) O-ringing block and buying a stronger head gasket are usually strengthing
>the weak links . The way I look at it they are like fuses, cheaper to blow
>them than a set of pistons, rods or junk your entire motor . The oringing
>trick allows a little more OOPS detonation while tuning, but when it blows
>it blows big time (Others may disagree), I say avoid detonation all together
>. For really high HP engines o ringing must be done
>3) NOS has many advantages over turbo including instant response, major
>cooling effect and combustion chamber stabilization . Get the NOS recipe
>wrong and that instant response now turns your motor to instant junk . I
>personally would not try to computer control NOS due to the fact that
>mistakes will more than likely cost you an engine .
>Use a small shot first and tune engine, get your feet wet .
>4) Proper timing controll is often overlooked, it is a major key factor to
>keep you engine from detonating  . TIMING IS CRITICAL
>
>I hope I didn't turn you off NOS, it is very effective and cheap . Buy an
>NOS book on the shelf and research it .
>
>400lbft of torque at 2000 rpms is not going to happen, NOS is not to be used
>at low rpms .

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David Cooley N5XMT Internet: N5XMT at bellsouth.net
Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
We are Borg... Prepare to be assimilated!
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