Thanks for that tip. I used RC and RB needles in my TR3 race car. I'm
curious to see how all these needles compare. I need to get a wideband
O2 gauge. This will not happen overnight, so I can probably wait for
the new book.
On 9/1/2012 1:10 PM, Kas Kastner wrote:
> You might try an RH S.U. needle or and RG Which is slightly richer.
> These are a lot leaner than the ones used for racing which are RB RC
> nd RA. In my famous ntoebook I have a lot of the S.U. needle info. I
> can scan a page and send it if it will help. I'll be adding this to my
> new revised upgraded *Handbook* that I plan to have available a
> download within a couple months..
>
> Never be beaten by equipment
>
> ------------------------------------------------------------------------
> Date: Sat, 1 Sep 2012 12:15:28 -0500
> From: cartravel@pobox.com
> To: kaskas@cox.net
> CC: lang@isis.mit.edu; fot@autox.team.net
> Subject: Re: [Fot] Zenith-Stromberg needle specs
>
> Thanks for locating the spreadsheet, I will get a copy so I can
> compare it to the SU charts that I have. The ones in Kas' book should
> give a starting point. This is for a TR250 street car, which I want
> to warm up but maintain an overall stock appearance. I want it to be
> like it would have been if not for the emission requirements. More or
> less like the 128 mph demonstration car Kas did back in the day. I've
> taken the compression ratio to 9.5 and put in a longer duration cam
> (BP270). I have yet to do anything to the carbs, so I'm still running
> the fixed needle Z-S. I want to stick with Z-S to maintain the stock
> appearance, but will need to switch to some adjustable ones or make
> these adjustable (see Buckeye Triumphs).
>
>
> On 8/29/2012 6:38 PM, Kas Kastner wrote:
>
> just a reminder that on page 110 of my book the "Handbook" there
> is a chart of the needles we used with great success in the 1.5"
> carbs.. These are STROMBERG needles. Lots of number to compare.
> By the way that is .006" shim stock you need to use an S.U. needle.
>
> Never be beaten by equipment
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