1993 E36 325i electrical questions, speedo, rev counter - Page 2

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Thread: 1993 E36 325i electrical questions, speedo, rev counter

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    #11
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    Fair play Tony. These will look awsome if you can get them working ok. I used to love these dials in the Astras. My mates dad used to have a Monza as well with the digi dash....
     
     

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    mess (12-10-2010)

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    #12
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    I've alwayd thought they looked the dogs danglies, a bit of old school cool

    Got a few people on the electronics case, should have a solution for it in the next day or 2

    May have to change tyre size to get nearer the standard Astra GTE rolling radius


    Women are like fairground rides..... fu*king mental!
     
     

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    #13
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    This is the kinda thing you need: http://www.rmcybernetics.com/shop/cyber-circuits.htm
    The Power Pulse Modulator, but it says that it's been discontinued. You might need to email the seller and see if they still have them in stock.

    £30, same price I paid !

    And you say you've got electronic people on the case - Get them to confirm that is what you need if they know what they're on about. It's been awhile since i've delved into this kinda thing.
     
     

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    Cheers Chris, much appreciated

    Been talking to my electronics bloke, he reckons he can knock me a little controller up for the job.

    Just need to find out haw many 'pulses per mile' for both the E36 and the vauxhall transducer and he can program a chip to do the job. He reckons the rev counter is easier with it just being a 33% reduction that is required

    Anybody know how many pulses per mile the E36 speed sensor puts out?


    Women are like fairground rides..... fu*king mental!
     
     

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    I think it may be one of the numbers that comes up on the dash test.
    I did a bit when i was datalogging speed, and i think it turns out there is 10 pulses from the diff from each revolution, although the speed did seem to drift a little, which should be impossible...

    http://www.endtuning.com/gearratios.html

    There's a few tools there, that should be able to help you in the right direction, from the circumferance of your tyres, you'll find out how many wheel turns you get, and also the gear speed calculator to check the amount of wheel turns per engine rev.

    The dash clocks are inaccurate on purpose to overestimate your speed.
     
     

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    #16
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    I think i may have found the right bit of kit:

    http://www.picbits.co.uk/catalog/pro...roducts_id/168

    Just emailed the bloke for his opinions

    Only problem is, i would need 2 i think, one for the speedo and one for the revs


    Women are like fairground rides..... fu*king mental!
     
     

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    That's perfect, as they are adjustable.

    You'll be able to keep adjusting the speedo until it gets accurate, and combine it with GPS to check.
     
     

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    Yep, he's just got back to me, i would need 2 and they would sort out my problems

    I'll just end up buying one to start with to get the speedo accurate, then get the other one next month when i get paid... i can live with the rev counter being out for the time being


    Women are like fairground rides..... fu*king mental!
     
     

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    Quote Originally Posted by mess View Post
    I think i may have found the right bit of kit:

    http://www.picbits.co.uk/catalog/pro...roducts_id/168

    Just emailed the bloke for his opinions

    Only problem is, i would need 2 i think, one for the speedo and one for the revs
    There we go - You've found the one I used !!!
    How did you find that ?
     
     

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    #20
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    Just went onto Migweb to ask if anyone had any idea of the correct ppm value for the transducer, saw a thread about installing them in a corsa b, the bloke who makes them had replied to someone and mentioned that he made a frequency pulse converter

    Just about to buy the first one now, going to test the rest of the wiring, then going to hack the dials up to fit in the E36 dash


    Women are like fairground rides..... fu*king mental!
     
     

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