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Old 02-11-2009, 04:46 PM
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Pablo Pablo is offline
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Join Date: Dec 2007
Location: Duvall, WA PNW
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Default Re: #68 Delortto Jet swap

Originally Posted by ibcnya View Post
So youre running a 80mm? Im confused....the chart says the #68 is .78mm, is this wrong?

Indeed that is not correct. Your thinking is not right. "Designation" does NOT mean Del Orto part #'s. It means industrial number drill sizes. The table is for general usage and really just tells you drill bit equivalents, NOT Del Orto jet #'s.

Mine is a Del Orto #65 which is .65mm. Your is a #68 which is .68mm. Stock is .70mm which is the same as Del Orto #70

This is NOT a bad thing. The thought is the these engines will run better (as you are seeing and feeling) by being slightly lean of stock. Good blind experiment!!

Last edited by Pablo; 02-11-2009 at 04:54 PM.
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