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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