Jump to content

KarTek

Members
 View Profile  See their activity

  • Posts

    140

  • Joined

  • Last visited

 Content Type 

Posts posted by KarTek

  2. VForce 2's a good upgrade from stock?

    in Banshee Repairs and Mods

    Posted

    Hey,

     

    I'm doing some work on the engine and I thought about upgrading the stock, potentially leaky reeds to something a little better.  I see people selling VForce 2's used at a good price and I was wondering if it's a decent upgrade or should I just go for V4's.

     

    These will eventually go on a Serval 4 mil so I have to keep that in mind as well.

     

    Thanks!

  8. Multiple issues, compression, miss fire, etc...

    in Banshee Repairs and Mods

    Posted

    So I've been chasing this for a while.  Backfires out the left side, won't rev past 5500 RPM.

     

    What I've determined it's NOT:

     

    Stator (traded with another one)

    Carb adjustment (swapped carbs)

    TORS (removed)

    Parking brake sensor (removed)

    Ignition is OK (traded CDI boxes

     

    Weird stuff it's doing:

     

    Bubbles in the coolant

    Pops out the left carb and exhaust

    135 PSI on the left, 175 PSI compression on the right.

    Flywheel almost looks like it's vibrating fore/aft when the engine is revved up but this may be an optical illusion because of the engine vibration due to poor running.

    The left exhaust pipe ACTUALLY TWISTS when the engine is revved, despite the fact that the pipe is secured and all the mounts are good.  The right side is solid.

     

    So, I need a plan of action.  Where else to check?  The condition developed over time.

     

    Thanks for the assistance!

  12. A little bit of a different spark coil question. But a simple one.

    in Banshee Repairs and Mods

    Posted

    Ok, your issue is you put a dc cdi on an ac set up. You need to get correct coils and also a dc/ac inverter to bump up voltage to a lot more than 12vdc. As 12volts isnt enough power to cross the gap. It takes 400volt to cross .001", 1000v to cross .006" and 3000v to cross .119" of air.

     

     

    Also, why did you do this?

     

    I figured it was something like that.  I'm measuring the 12v on the input side of the coil, not the output side.

     

    I'm just doing this as an experiment in digital control ofver spark and such...

     

    Thanks.

  15. EFI

    in Jetting & Exhaust Forum

    Posted

    I've converted over to a full DC based CDI and added a regulator and battery so now, I suspect that the stock coil is fine but it's designed to work with a higher AC voltage and it's not working great with 12 VDC.  The spark is almost invisible and the engine won't rev above around 2000 RPM.  I can get DC coils for $10 so I might just try that.

     

    I'm trying not to mess up this thread with a lot of talk about ignition and coils so I posted a specific question in the other forum.

     

    Thanks for the input.

  20. EFI

    in Jetting & Exhaust Forum

    Posted

    Hey, I know it's been a while but I read back through the thread again and I have a question on the coils.  Any particular reason you chose the Corvette coils?  Is the stock coil not compatible with the 12v ECU?  Thanks!

  23. A little bit of a different spark coil question. But a simple one.

    in Banshee Repairs and Mods

    Posted

    Hey, for reasons that will become clear at a later time, I have replaced the entire guts of the ignition system except the pickup coil and the spark coil.  The new CDI is providing a perfect sawtooth wave 12 volt signal to the coil but the spark is weak to non-existant.

     

    Before I start checking everything I need to know if the coil is designed for 12 volts or something higher.  If that's the case, it's working as designed and I just need a 12 volt coil.

     

    Thanks a lot!

BHQ Quick Links

×
×
  • Create New...