[s-cars] Primary size for a tube header?

[Mihnea Cotet]

Trevor, I'll measure my SQ EM runner length and i.d and will email you
right afterwards.

Cheers,

Mihnea

At 13:50 19/09/2003 -0700, Trevor Frank wrote:
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>So I am getting fairly serious about building my equal length tube
>header.
>
>
>
>First question:
>
>Does anyone have any data, i.e. lengths and tubing i.d. for a lehman,
>mtm or audi motorsports tube header or even the SQ em?
>
>
>
>Second Q:
>
>What size for the primary tubes.  Anyone using stepped tube sizes.  I
>can get 321 s.s.180 bend's in 1.75" x .049 wall for pretty cheap like 30
>ea.  Approx 5 or so needed.  The stock exhaust ports would match up with
>1.625 x .049 wall perfectly.  They are more like $58 ea for the bends.
>I am wondering if loosing the velocity will be an issue.
>
>
>
>More Q's:
>
>Anyone have recommendation on exhaust velocity, I have talked to some
>people, turbonetics and Innovative but have not gotten any answer with
>much confidence.  I am wondering if anyone has bothered to fill out
>burns stainless's engine exhaust analysis sheet.  To have a header tube
>size and configuration for out motors anylised.
>
>
>
>
>
>
>
>
>
>I have the material for the flanges, and have done the cad and cam for
>it.  316 stainless steel approx .48 in thick.  If anyone wants one let
>me know.  I will be running them sometime next month.  I will also be
>running inlet flange to the turbo and outlet flange from the turbo,
>k-24/k-26.  I have enough material to run approx 5 sets of exhaust
>flanges and a few sets of turbo flanges.
>
>
>
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