Re: temp flap, sheer glee

[KSMITH1@mailgw.sanders.lockheed.com]

In message <9705211333.AA16731@nj2.n-jcenter.com> Mike Arman writes:

> Purpose of intercooler (turbo cars) is to reduce temp of pressurised 
> air coming from pressure/inlet side of turbo - same reason. 
> When the turbo presurises the air on its way to the cylinders,
> the air heats up. Sometimes quite a bit. Need to get the temp back
> down to reasonable levels, hence heat exchanger.
> 
Phil Payne replies:
>Not really.  The purpose of the intercooler is to increase the 
>density of the air.  The fact that the turbo's compression has 
>increased the temperature over ambient is exploited by the 
>intercooler, which contributes as much (or more, in the case of the 
>Sport) to increasing the air mass per unit volume entering the 
>engine as the turbo does.

To which I ask:

Does not the air temperature influence the point of incipient 
detonation (ping), and thereby the maximum boost that can be run for a 
given compression ratio?

***                 ...Kirby    (Kirby A. Smith)                 ***
***                      2 X 1988 90q                            ***
***              ksmith1@mailgw.sanders.lockheed.com             ***
***              [=]   kirby.a.smith@lmco.com                    ***
***  Opinions expressed herein are entirely those of the author. ***