Tillotson carb specs

[Tom Day]

Since VKA has made a Tilly carb venturi max size of .810 for the West Bend sidewinder class for 2020 does anyone know a good site that lists specs for all carbs that might work for this?

Thanks
Tom

[Paul F]

It's in metric but this should work. http://www.vdm46.com/tillotsonmikuniwalbro-carbs.html

[Tom Day]

It's in metric but this should work.  http://www.vdm46.com/tillotsonmikuniwalbro-carbs.html

Thanks Paul,
  Nothing there that converts to the .810 max that we can run. Closest is 20mm or.787.

[Terry Bentley]

Is that just an 0.810 no-go as a max dimension? The venturi in a standard new style Tillotson can be taken out that much without any major modifications. Didnt the 820 have a .750 venturi originally? Or am I missing something here?

[RANDY DUNCALF]

https://tillotson.ie/shop/hl232f-carbure...nformation
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stock carb

[Tom Day]

Is that just an 0.810 no-go as a max dimension? The venturi in a standard new style Tillotson can be taken out that much without any major modifications. Didnt the 820 have a .750 venturi originally? Or am I missing something here?

Terry,
  The .810 is given as the max you can run. The stock carb that US motor supplies with the 820 nowdays is the HL232 with a spec of 20.66 which converted is .813.

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https://tillotson.ie/shop/hl232f-carbure...nformation
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stock carb

Randy,
  yep, that's the stock carb for the 820 from US Motor. I was just looking to see what else might be able to be used. Got to be thousands of Tillys out there from all theres years.

[RANDY DUNCALF]

Is that just an 0.810 no-go as a max dimension? The venturi in a standard new style Tillotson can be taken out that much without any major modifications. Didnt the 820 have a .750 venturi originally? Or am I missing something here?

Terry,
  The .810 is given as the max you can run. The stock carb that US motor supplies with the 820 nowdays is the HL232 with a spec of 20.66 which converted is .813.

---

https://tillotson.ie/shop/hl232f-carbure...nformation
.
.
.
stock carb

Randy,
  yep, that's the stock carb for the 820 from US Motor. I was just looking to see what else might be able to be used. Got to be thousands of Tillys out there from all theres years.

I would think there would be others but I have not found any
the HL232 is easy  to get

[stan wauthier]

I'm no mathmetician, but .813 is larger than .810. If I understand correctly that would make the HL232 ineligible, no?

[Terry Bentley]

I was thinking about the stock carbs on early 820's. The HL 134A with a .750" venturi. That would be easy to take out to the .810" dimension. I guess that size keeps everyone from swapping out to any standard Tillotson for stock rotary valve engines with .875" venturi.

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I'm no mathmetician, but .813 is larger than .810.  If I understand correctly that would make the HL232 ineligible, no?

Put carb in the freezer before getting tech'ed. It will be fine.

[stan wauthier]

Is that why I should have a freezer in my trailer?