re: headers
Since the Healey exhaust is a (semi) rigid setup--not like Merkin pipes, which
are loosely hung ;)--the stock downpipes have the 10" piece of flexpipe to
handle
the engine movement w/o stressing and cracking the pipes.
How do you header drivers link the headers to the exhaust while allowing
for the movement of the engine?
bs
********************************************
Bob Spidell San Jose, CA bspidell@pacbell.net
'67 Austin-Healey 3000 '56 Austin-Healey 100M
********************************************
> projects for this winter (can't wait) ..
>
> on tap ..
>
>
>
> 2. Am considering adding DW headers and 2 inch pipes .. keeping my SUs ..
>
> I would love feedback from anyone who has done this .. also feedback on
>
> keeping my SUs with the headers ... I have the DW headers. I found it
> necessary to relieve (notch) the square tubing near the shroud support post
> in order to provide adequate clearance for the header pipes. I relieved the
> area about .50", fabricated a curved insert, heliarc welded it in place and
> dressed down the welds. I pulled the engine to do the work. I also had to
> relieve the front outrigger by about .75". Plan on some cut and paste to
> make the headers fit.
>
>
>
> 5. am contriving a brace system of my own to stiffen up the scuttle .....The
> scuttle shake problem stems from the lack of stiffness of the main frame
> rails in from the X-beams forward. Design your repairs/improvements
> starting with front end stability including trueing the wire wheels and
> precise balancing.
>
>
>
> 7. Cold air box. I have a cold air box that I fabricated. The box should be
> equivalent in size to the displacement of the engine. In order to fabricate
> a box large enough to not restrict air flow, I had to rework the pedal
> support box braces. I had to move them outboard about 1". This is a major
> rework that requires first building a jig to ensure that the inner body
> remains square while you are making the changes. This alteration is not for
> the faint of heart.
>
>
>
> Thoughts on any of these would be welcome ...
>
>
>
> Best regards,
>
> Jim Hockert
>
> BJ8 Rallye
>
> Dallas, TX
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