I guess one of the questions I'm trying to answer is whether a race 948 with
big valve, high CR, and a well flowed head is gonna benefit from the larger
header or not. At some point, bigger is not better.
Also, Redrum has a custom bent tailpipe to a megaphone. It has a fair amount
of bends in it... whereas Red Rat had a straight pipe/megaphone with just a
little kick up near the end.
----- Original Message -----
From: <MGTD2@aol.com>
To: <wsthompson@thicko.com|>; ""Wm. Severin Thompson""
<wsthompson@thicko.com>; <shelden3@pldi.net>
Cc: <spridgets@autox.team.net>; <team-thicko@autox.team.net>
Sent: Wednesday, August 21, 2002 11:33 AM
Subject: Re: header theories
> What you find out on the dyno should be really interesting. After reading
all the "bibles" out there about building up an A-series motor last winter,
I decided to go with the smaller diameter (A.K.A. "street") Maniflow LCB
header rather than the larger diameter "race" header. My thinking was I had
stock valves, a high rear end, and wanted to keep gas velocity up for
accelleration out of turns. I thought the bigger header would not give me
the grunt I was looking for down around 4,000 RPM, but I bet I pay a price
at the top of the rev range.
> Would love to see torque curves with one and the other.
> --JohnD
>
> In a message dated Wed, 21 Aug 2002 9:02:51 AM Eastern Standard Time,
wsthompson@thicko.com writes:
>
> > If I stumble across a bag of money, I'm gonna do some chassis dyno time
> > off-season and try out a number of things...
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