[Fot] Zenith-Stromberg needle specs

Larry Young cartravel at pobox.com
Sat Sep 1 13:18:25 MDT 2012


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 at pobox.com
> To: kaskas at cox.net
> CC: lang at isis.mit.edu; fot at 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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