 Venturi Identification |
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| Osnabruck914 |
 Dec 27 2025, 01:10 PM
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Member  Group: Members Posts: 191 Joined: 19-December 22 From: United States Member No.: 27,038 Region Association: South East States  |
Going through my parts stash today I found a set of 28mm Main Venturis, but cannot remember if they are for Weber or Dellorto carbs. They are 40mm at the base, 28mm at the choke point, and 37mm tall. Does anyone out there know if these measurements are for Webers or Dellortos? All my other Dellorto venturis are 34mm tall...confused.
Osnabruck914 |
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| porschetub |
Dec 27 2025, 03:32 PM
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Advanced Member Group: Members Posts: 4,983 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(Osnabruck914 @ Dec 28 2025, 07:10 AM)  Going through my parts stash today I found a set of 28mm Main Venturis, but cannot remember if they are for Weber or Dellorto carbs. They are 40mm at the base, 28mm at the choke point, and 37mm tall. Does anyone out there know if these measurements are for Webers or Dellortos? All my other Dellorto venturis are 34mm tall...confused. Osnabruck914 have a new set of 28mm vents and set of used 32mm both DRLA , 35mm height ,42mm od , think you might have weber ones due to the differant measurements ,others may chime in on those ones you have ,cheers. |
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| Osnabruck914 |
Dec 27 2025, 05:25 PM
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Member Group: Members Posts: 191 Joined: 19-December 22 From: United States Member No.: 27,038 Region Association: South East States |
Thanks Tub for taking the time to measure yours. I think you are right about them being for Webers, as I also notice now they have dimples on the outside surface for a set screw to hold them in place. My Dellortos don’t have that.
Osnabruck914 |
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