See below update - Can anyone help me in relation to preferred dashpot oil for HIF6 on drawthrough sc12 setup. The Moss supercharger kit actually has air jets that are placed in the su piston air bypass holes to prevent this lean condition that I am having. What is everyone elso doing?


Update on my sc12 setup. My needle is actually a BCJ and it was running too rich at idle due to a burr in the mixture screw thread that i have now removed. I can now adjust the mixture to a point where the idle is good at 15:1.
This adjustment has made my idle nice and smooth but has accentuated my lean condition on sudden throttle. My issue is now damper oil (I Think). I was running 10w fork oil so I changed to 20w50. This hasn't helped. I will try 90w synthetic gear oil tonight to see if it stops this lean condition? The old school moss supercharger kit specifies sae90 in the Su as required to stop this condition. Will give it a go.
I am now thinking that this needle being fairly lean at top end compared to others is also not helping.

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1310 SC 1969 Morris Deluxe - 15psi boost
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