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Originally Posted by bwhinnen
I've used the 'lovely' PHPBB search facility and have found a few entries of the jet sizes people are using...
But is there a specific formula to use, I understand that 10 - 15% of the fuel used is the guideline, but given that the fuel used across the entire rev range will be different is it a compromise?
I run 4 x 700cc injectors at about 68% IDC (@ 7000rpm), currently around the 199kW @ the wheels mark.
Currently I'm using the 0.5mm jet in a 1S system but would like to know if running a 0.7mm jet as a few others are using would be a better solution.
Jet location is in my FMIC piping, about 700mm before the TB.
Cheers and thanks
Brett
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In order to keeping the ratio relatively constant, you need to consider upgerading the 1s to a 2d system. The 2d tracks the fuel delivery and you can keep your w/f ratio much consistantly. If you need other ratios, just change the jet size.
Richard