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Wide band O2 is awesome [message #181415] Thu, 23 August 2012 10:21 Go to previous message
Keith V is currently offline  Keith V   United States
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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Running 68 jets with the lightest spring puts me in the 14.5:1 range, it movs around a lot, but cruise is pretty close to that.

I put in 66 jets and cruise went to 17:1 way too lean.
It was ay 18+:1 at idle and would bog terribly, I didn't adjust the idle mixture, but the cruise was still too lean.

So it looks like I need 67 jets.

Now I've always been told you cant tell the difference between jets less than 2 sizes apart, but that was pre wideband days.

So I think I'll buy a couple of sets of 66, 67 and 68 jets in cace the flow variations are different enough within a jet size

The other idea is to drill the 68's a little.

Anyone have experience drilling jets?


Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
 
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