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-   -   Ignore my 4-1 wheel post... (https://www.miataturbo.net/megasquirt-18/ignore-my-4-1-wheel-post-22152/)

mikeflys1 06-09-2008 03:56 PM

Ignore my 4-1 wheel post...
 
God knows why it worked so well the first time but i havent been able to repeat it since. I tried megatunix's tooth monitor function and it shows the ms is interpreting the space between 2-3 and 3-1 as missing teeth. So there goes that idea for us ms-1 guys...glad i could sacrifice my car, sanity and crank wheel to find it out ;)

Here's my shitty diagram of the wheel again to show what im talking about....

http://i6.photobucket.com/albums/y24...1/Untitled.jpg


Now i've ground off both TDC teeth and im using the stock nb cam sensor as the 2nd trigger and it runs great. Ohh and for the diagram the teeth are 75* BTDC not 60.

therieldeal 06-11-2008 11:56 AM

mike i think i need to talk to you about building a COP setup, you seem to know wtf you are talking about :)

cjernigan 06-11-2008 07:31 PM

That sucks man, I was pretty stoked that it might work.

mikeflys1 06-11-2008 07:47 PM

yea me too...oh well i still got what i wanted (an actual crank trigger)....i just didnt want to have to use two sensors where one could do the job.

cjernigan 06-11-2008 09:57 PM

Do you have the EDIS working?

mikeflys1 06-11-2008 10:57 PM

No, im using the stock sensors

cjernigan 06-11-2008 11:08 PM

Guess I don't understand. If the 4-1 stock wheel didn't work how are you using the stock sensors with MS. You said it worked once, now it doesn't yet you say you're running the stock crank trigger now.

mikeflys1 06-11-2008 11:37 PM

I ground off another tooth on the crank wheel so there's two now....and im using the cam sensor for the sync. Settings on megatune are exactly the same as for an na cas.

cjernigan 06-12-2008 07:16 AM

I see good deal. Maybe I missed your post about that in another thread.

mikeflys1 06-12-2008 12:27 PM

First post of this thread...right under the pic ;)

cjernigan 06-12-2008 08:21 PM

Thats what i get for getting excited and missing that sentence.

ampz 07-17-2008 09:23 PM

I'm just curious to know if the NB crank wheel plate fits a 1.6 short nose crank pulley. IF the 4 holes are spaced equally I may just jump on this.

Joe Perez 07-17-2008 10:31 PM

The structure behind the pulley is pretty different. On a longnose 1.6, you have the Big Bolt holding the timing belt pulley onto the crank, then four small bolts hold the main pulley onto the timing pulley, much like on the 1.8. On the shortnose, the Big Bolt holds the main pulley onto the crank, with the timing belt pulley just sandwiched in there.

Still, there's only one way to know for sure. I'm sure FM salvage might be able to provide you with a wheel for testing purposes. Fabricating a mount for the sensor is up to you.

ampz 07-18-2008 12:08 AM

I'll try the local salvage yards here first. We'll see what that nets me.
Mr Perez... You keep putting way too many ideas into my head :)


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