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Thread: nc30 de-restriction

  1. #16
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    7th February 2003 - 12:00
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    with the NC35 at least you cetainly need the resistor... and its the orange/black wire behind the speedo... the ECU is measured to cut out if the circuit is broken... or revv to only 5,500rpm then stops firing if it gets a voltage reading of 12V... i tested this over and over.. just to make sure :P and its falled apart and ive tried straight short circuiting on side of track and it still dont work.. it needs X voltage to run proper, and thats the resistor thats inside the speedo unit... and NC30 is the same im sure, although i havnt done the trying over and over... As for blackbox's... yep i have an M MAX box right here... all they are is a big, easy, plug in resistor... measured resistance is about 2k2... anywhere between 1k5 and 2k5 i think did actually work... never undersood why M MAX box was 2k2 when resistance across speedo was 1k5... anyway.. too techie.

  2. #17
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    12th January 2004 - 12:00
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    Na,on bart's 30 we snipped the wires back by the ignitor and ran one from one to the other.....there's a third wire in there too,but it's only an earth...I found this by running the thing with the optical switch out of the speedo and placing something in there to see what happened.....12v with nothing in and 0ish with the beam blocked....I'll see if the 750 loom has the colours(same as the 30)
    Drew for Prime Minister!

    www.oldskoolperformance.com

    www.prospeedmc.com for parts ex U.S.A ( He's a Kiwi! )

  3. #18
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    7th February 2003 - 12:00
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    k :S crap mybad.

    dont know anything on the 750's but do they use the same loom as the 30 u sayin?

    i know that if u just join the wires together @ teh speedo unit, it dont work for sure. must have resistor.... so i dont fully get it? as surely they would be derived from back @ ignitor?

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