Okay here's my take on the situation.... this doesn't have a thing to do
with anything but my personal reality....
If your headers are too small thou they might increase the exhaust port
velocity thereby increasing bottom end torque.... they will absolutely
restrict the flow at higher rpm.... and since we aren't playing with a
350-400 cubic inch engine we can't affort to allow the high rpm band to
suffer an exhaust restriction. Oh and if you do chose to run a C motor
later your 1 5/8ths are going to have to be replaced unless your keeping
your motors down in the 3-400hp range...
I was having a chat with Ted Wenz who is building my Rodeck and we were
talking about this exact subject last week... his answer was there wasn't
more then about 20hp difference from the best header for a motor and the
worst ( common sense applies ) so bigger might not be perfect but it sure
does allow more options.
Keith ( and Joe... your exactly right... the problem with the aluminum
coating is that it's always on the inside of the Tube where it can't afford
us any corrosion protection )
----- Original Message -----
From: <LGMCAFEE@aol.com>
To: <land-speed@autox.team.net>
Sent: Tuesday, February 05, 2002 9:50 PM
Subject: headers
> Keith this is what Headers by Ed says.
> Bigger is better. This is absolutely the most committed mistake we see in
> headers - people buying headers TOO big - bigger than what is necessary
for
> the engine to produce maximum performance and, because of that, reducing
> bottom end and mid-range power in the process. Depending how much
oversize
> the header is, top end (peak) power can even be reduced!
> Larry Mac
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