<VV> nitrous and Corvairs (heat problem?)

[Joel McGregor]

I'm no nitrous expert but you are correct about it only cooling the intake charge.  If it cooled the combustion process it would make less power not more.  Heat is where the power comes from.  The main reason it shouldn't be a problem is the limited amount of time you run it.  As far as I know a turbo Corvair without nitrous will have a meltdown if you run it at full boost for an extended period of time.  Using nitrous to overcome turbo lag used to be a common practice and may still be.  The short shot you would be running shouldn't add significantly to your heat load.  If you are using it to make up for turbo lag you wouldn't be using huge quantities otherwise your power would fall off when the boost came up.  (more nitrous power than turbo power)
Joel McGregor
________________________________________
From: virtualvairs-bounces at corvair.org [virtualvairs-bounces at corvair.org] On Behalf Of Ramon Rodriguez III [corvairgrymm at gmail.com]
Sent: Wednesday, February 22, 2012 6:43 PM
To: virtualvairs at corvair.org
Subject: <VV> nitrous and Corvairs (heat problem?)


Now... I thought the "cooling effect" from nitrous applied only to the
intake air charge, and that the resulting improved combustion would
generate more combustion chamber heat which would lead very quickly to
overheated heads.

If I'm wrong here I'll be very happy to hear it, as someone over there
stated NOS would be a fantastic way to make up for turbo lag on a turbo
Corvair,  it'd be great to have a nitrous system that works up until the
boost comes in, then stops once the boost hits a certain point.  I'd LOVE
to do something like this on my turbo Corsa project car if it is viable.  A
turbo engine (lower compression) would be an ideal NOS candidate if I'm not
mistaken, as long as you don't have the NOS and turbo boost working at the
same time.

I guess my question then is two-fold...  On an "ordinary" Corvair engine
would NOS overheat the engine?  On a turbo Corvair engine could you use NOS
only when there is little or no boost from the turbo without ill effect?