If you want to see something neat, look at a turbo when it is
running at full rpms. Glows a beautiful color. When I worked
in the engine dynos at Ford, we used to run tractor and heavy
truck engines at full load, wide open throttle to check them
out. The turbos were glowing cherry red. Understood why it was
necessary to keep the engine running for a few minutes after
a hard run with the boost on.
Doug
-----Original Message-----
From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net]On
Behalf Of portermd@zianet.com
Sent: Friday, July 02, 2004 1:19 AM
To: MJSUKEY@cs.com
Cc: fot@autox.team.net
Subject: Re: Hot manifold question
MJSUKEY@cs.com writes:
> OK folks, another dumb question for you. Jason and I finally got the
fresh
> motor installed and fired up tonight in the TR6. 10:30 at night we had
the car
> out side with the hood off and fired her up. We noticed a very slight
orange
> glow to the exhaust manifold. I tweaked the HD8's somewhat and it did not
> appear to be lean but we did not have much time left to do much
experimenting.
Don't think this is a problem. When I was racing roundy-rounders, there were
all sorts of interesting header colors one could see at night through the
wheel wells. One could always tell the people who were cheating with a bit
too much nitromethane--their headers were white-hot and very nearly
translucent. Of course, their engines also blew up on the 75-lap races,
too... that was another way to tell.... *smile*
Cheers.
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