temp flap, sheer glee

[Phil@sievers.com (Phil Payne)]

In message <38367390.1299@mailgw.sanders.lockheed.com> KSMITH1@mailgw.sanders.lockheed.com writes:

> 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?

Hmm.  I think you might well have a point.

I was idly chatting with Martin at BR Motorsport the other week, and he
casually mentioned that oversizing the MB's intercooler results in heat
stress and occasional melt-through of the pistons.

I wonder how finely this point is balanced.

We also discussed tricks like mounting headlamp washers in front of the
intercooler to increase the cooling effect.  It's quite amazing how much
water such techniques need.  They've actually tried it on a Sport,
though the Sport's intercooler is so damn huge that I'm not surprised.

--
 Phil Payne
 Phone: +44 385302803  Fax: +44 1536723021  CIS: 100012,1660

P.S. I had a lousy day today, so I took the ur-quattro out for half an
hour.  The ur-q owners among you will know what I mean.