Just a quick thought. The biggest header primary pipes don't always
equal more power. Varying diameters of primary pipes can change the
location (within the rev range) and size of the power/torque curve.
The biggest diameter header pipes may not always be the best for your
needs. At least, that's what I understand is the case with naturally
aspirated engines. Does this change when forced induction is added?
Tim Holbrook
1971 TR6
--- "Kai M. Radicke" <kmr@pil.net> wrote:
> > Not of interest to most 6 owners, but certainly to me was the
> second
> > gift of "How To Build & Power Tune the SU Carburettor," as written
> by
> > Des Hammill and published by VELOCE Publishing Co.
> > The SU is closely related to the ZS carb, both using the Constant
> > Depression method of controlling air and fuel. I've already
> devoured
> > it's contents, and now I have to go back and try to understand it
> > better. It goes way beyond what is found in the Haynes manuals on
> carbs,
> > which is only meant to service the stock applications of either
> carb.
> > I'm thrilled that Mrs. Claus found this book for me!
> > (and the nice 6-PACK 'shirt', too.)
>
> Ah ha! That's the book I kept forgetting about...
>
> Under my tree lay Street Supercharging (2nd Edt.) by Pat Ganahl...
> time to
> seriously get the Super6 up and running now. Seems Toyota got the
> Eaton M62
> blower (one I'm using) to produce 62% more power on their pickups...
> nice
> increase for a Roots blower. I finally got a bit more indepth look
> at camshaft
> theory (in relation to forced induction) and header information, so I
> can get my
> camshaft specs off to Steve @ Integral Cams and have him do the grind
> I want.
> I'll probably go with the Kirk Racing header for the TR6 now also as
> it is the
> header with the biggest pipes.
>
> And like Dick said, now it's time to re-read everything in more
> depth! Dick,
> does the Hammill SU book cover the 2" SUs?
>
> Kai
>
> http://www.pil.net/~felix/supercharger/
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