[Spridgets] SU Dashpot Oil wt

[David Ambrose]

I took an experimental approach to this. I filled the dashpots with 15 
wt motorcycle fork oil, and half filled an oil can with the 15 wt. 
Acceleration was sluggish, so I added some 20 wt to the can, refilled 
the dashpots, and went for another test drive. If the engine seemed to 
be running rich on acceleration, I added 15 weight. if it seemed lean, I 
added 20 wt., changed out the oil, and went for another test drive. Not 
sure what the actual viscosity is, but it works well. Will have to 
recalibrate the oil after I change out the carb bushings and shafts.

On 6/15/2021 3:04 PM, David Lieb via Spridgets wrote:
> The real answer is that the heavier the oil you put into the dashpot, 
> the longer it takes to respond to changes in the throttle position. 
> While it is opening, the mixture is richer due to the higher engine 
> vacuum. This is what compensates for the lack of a Holley-type 
> accelerator pump. The heavier your car and the less torque your engine 
> has, the heavier the oil you should run to cover flat spots in 
> acceleration.
>
> On Tue, Jun 15, 2021, 16:19 Bill L. via Spridgets 
> <spridgets at autox.team.net <mailto:spridgets at autox.team.net>> wrote:
>
>     Hello Michael,
>
>
>     I had always heard that you put the exact same oil in the damper
>     as you put into the crankcase. That's WHY it takes a little less
>     than 4 qts...   So you'll some left to top up the carbs!
>
>
>
>     -- 
>     Best regards,
>      Bill                            mailto:Zormecteon at comcast.net
>     <mailto:Zormecteon at comcast.net>
>
>
>     Do I smoke after sex? I never looked.
>
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