davychronic's build

Discussion in 'Mazdaspeed 6 Build Diaries' started by davychronic, Aug 28, 2016.

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  1. davychronic

    davychronic Greenie Member

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    I never had the ls2 coils installed without the ss controller installed, might try that. It gets its tach signal from the cam sensor middle wire if i remember right. Pcm ground i also get from the cam sensor. And power and chasis ground, thats it. Everything is soldered. The cam sensor, if i remember right, is only really used for fueling tho and its definately an ignition related issue i feel.
     
    davychronic, via a mobile device, Apr 22, 2018
  2. Ssinstaller

    Ssinstaller Greenie Member

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    I know the old split second controller had to have a pulldown resistor resistor installed along with the trigger circuit to function properly. I'd bet the new on has a similar issue as well.

    The cam sensor is used for sequential fuel injection, but it's also used to time the coil firing event in COP ignition systems... I would find tach for the split second controller somewhere else...
     
    Ssinstaller, via a mobile device, Apr 22, 2018
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  3. davychronic

    davychronic Greenie Member

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    The guy from split second specifically told that wont work that the new box is completely different frome the old one. He told me nothing is the same between the two and that the new box loves cam sensor signals and they havent had any problems using the cam sensor. Ive used injector pulse for the tach signal and had the same issue, also used obd2 for tach signal and same issue. I picked up some itv22 plugs last night that i may throw in and see whats what and turn wgdc to 0 and see if it happens at all or happens later with the lower load.
     
    davychronic, via a mobile device, Apr 23, 2018
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  4. Ssinstaller

    Ssinstaller Greenie Member

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    Before you make any other changes I would just unplug the split second box and make a few pulls.
     
    Ssinstaller, via a mobile device, Apr 23, 2018
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  5. JohnnyTightlips

    JohnnyTightlips Gold Member

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    Did you get this figure out?
     
  6. davychronic

    davychronic Greenie Member

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    Not yet, havent even had time to look at the forum. Been a crazy year farming so far. Hopefully in 3 weeks ill have time to work on the 6 again.
     
    davychronic, via a mobile device, Jun 15, 2018
  7. davychronic

    davychronic Greenie Member

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    Ok been busier than shit this year, weather has been absolutely nuts. I picked up an ingition harness and coils off of a 79k mile car and am going to swap them out to work towards fixing this spark blowout issue. Before i added the sscontroller pi and tb,i never once experienced this issue and made more power than i am currently. Even before with my cs turbo running 30psi, no issue. Isuspect the am ignition coil i replaced my blown one with cant handle the load. On the fuel side im going to put the stock pump and hanger in the driver side only drilling for the pump outlet to go to my -6 fitting and return going to the stock feed. Im going to put one of my dw pumps in the passenger side hat and still have it come on at 3psi boost. Im not sure yet what im going to do about the stock fpr, i dunno how it will jive with the other fpr. Im no fluid dynamics expert. Anyway hopefully this all fixes my issues and i can finally tune this beast. Still it will be a little while before i can put in the time on it but its getting closer. Im hoping to make it to the epic midwest meet for the first time this year but it should be going by then.

    This post looks boring without any pictures so heres some pics of a truck i bought this month.
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    Its a 1974 Chevy C65 (same truck as a duece and a half if you ever served youll know) with a 427 engine and 4+2 shift trans/rear end. Has 49k verified original miles with a yearly inspection by a local truck ahop done every year back to 1976. I picked it up for only $7k and its been pretty fun to drive around getting used to the 2 speed rear end and split shifting. Already have a full holley sniper efi system on the way to replace the junk stock holley carb. Should be fun to put a couple hundred miles a year on come harvest time.

    So yea theres my most recent update, hope this weekend i can get some time put in on the 6 and get this shit figured out.
     
    davychronic, via a mobile device, Jun 22, 2018 at 9:48 AM
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