MS2 R57 do i need it???? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-06-2011, 08:08 PM   #1
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Default MS2 R57 do i need it????

So i got my kit the other night and i have the whole thing done but i just have one problem. My kit never came with a resistor for the R57 spot on the board. If i do need it can some on tell me what it is so i can run to radio shack and grab one.

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mike
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Old 05-06-2011, 08:41 PM   #2
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R57 is a spot for a pullup resistor. Using it depends on what type of input circuit you plan to build and is optional. For MS3 on a standard miata, I set up CKP input through the VR circuit and populate R57 with a .5-1k ohm resistor (the exact value isn't terribly important within reason).

Additional info is found in the manual:
http://www.msextra.com/doc/ms3/ignition.html#tachint
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Old 05-06-2011, 10:03 PM   #3
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thanks ben i am going to be using the ford EDIS on my SR20det build so im guessing i dont need it.
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