Wayne,
There is a lot of info online. Try this, for example:
http://www.winsu.co.uk/
You need windows, and I'm on a Mac, but by its blurb, it could help you.
Also: http://www.teglerizer.com/suneedledb/index.html
I don't know if this helps, but its a well illustrated piece on switching
from Z to SU on a Spit.
http://www.teglerizer.com/triumphstuff/75w_carbswap.htm
Brian
On Dec 30, 2009 5:23pm, Wayne Lee <wayne@motorcarriage.com> wrote:
> Hi Brian,
> Yes, the Spitfire Float Bowls are essential in getting it right. I did
> the HS6 Conversion on my TR6, and it made a world of difference in
> performance and simplicity,
> Fuel Mileage. Once You get your linkage situation sorted You'll be happy
> You made the change.
> My HS6's started life on a Volvo P1800. So after the Float Bowls which
> needed to be turned vertical,
> and the Linkage problems were sorted,the jetting was all that remained.
> As long as
> your Jet is of the larger variety for the HS6's,all that's left is your
> Needles. Moss includes the (BAG)
> Needle profile with their Conversions. I run (BAE) if I remember
> correctly.
> I run them with the low compression late Head, Non EGR Manifold and K&N
> A/Filters, with Pertronix and Lucas Sports Coil.
> I might play with the BAE Needles in the future, I'll have to look at the
> comparitive Needle Profiles. You could always call Joe Curto
> and get a couple sets of Needles to try out. Other than having a pair of
> Synchrometers and checking your Plug readings You'll be happy
> if they're good Carbs.
> Regards,
> Wayne Lee
> 75 TR6 (Daily Driver till next week)
> 64 TR4 (Future Project)
> --------------------------------------------------
> From: "Brian Jones" tr4zest@gmail.com>
> Sent: Monday, November 30, 2009 2:26 PM
> To: "Mike H" tr_man@hotmail.com>; "email list" triumphs@autox.team.net>
> Subject: Re: [TR] zenith or su's ?
> Are you using stock needles? You can only set richness at idle,
> effectively.
> Needle taper determines the off-idle richness. IIRC, my SU's (H6) have RH
> as
> the stock needle.
> You should expect all the power you had from the Strombergs, and more if
> one
> was either rich or lean before.
> Brian
> On Mon, Nov 30, 2009 at 1:44 PM, Mike H tr_man@hotmail.com> wrote:
> I have a slightly modified TR-250 that has run great with the Zenith
> Stromberg carbs. Only problem is I have always had problems getting them
> to
> the proper mixture settings. Its like one carb will be running lean and
> the
> other rich. I've checked the intake and carbs mountings. So I decided to
> put
> on HS6 SU's. Found out this is far from simple. I've modified the linkage
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