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PFC :injector pulse timing correction

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Old 08-05-07 | 07:20 AM
  #1  
jbust's Avatar
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PFC :injector pulse timing correction

Hi guys, i have a question about injector lag time correction, Im currently running a 850cc primary and 1600cc Secondaries injectors. On the PFC manual, they have a formula to use to correct the 1 minute injector volume by this: Q-Sc > Q-Pr
i figured out the primaries ( 850cc = 0.77 - 550cc = 0.73 = 0.04 ms) Since i dont have datalogit, i could only go up to 1500cc on the secondary, im trying to figure out what the formula stands for.. so i can get the correct number for the 1500cc. can anyone help? thanks.

john
Old 08-05-07 | 03:15 PM
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From: In A Disfunctional World
Only for the primaries do you have a size ratio to enter.
550/new size = %. 550/850 = 64.7

Both have a change in lag value:
New Injector Lag - Stock injector Lag = lag change.

The PC manual explains this very very well.

Since you do not have a DL, trying to setup 1600 as 1500 will cause the engine to run way too rich. Buy/borrow a DL to setup 1600 correctly.

THIS SHOULD BE ON THE PFC FORUM, WHY DID YOU NOT DO THAT?
Old 08-05-07 | 11:33 PM
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jbust's Avatar
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oh, i thought i posted in pfc forum ;/ this will be probably moved, but anyway, thanks for another valuable info again you been a very good help member on this forum. like everybody else that started with rotaries, im new to it and learning all i need to. again thanks.
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