Stick coil conversion

[Billythekidd]

I'm having a new race loom built for my slabside 11, I'm running dyna coils but was wondering if stick coils are a better bet if there is known reliable coil that fits. 

[Gixer1460]

IMO unless you are running an EFI system with sequential capability using stick coils are no better than Dyna coils - using Iridium needle tipped type plugs would be a better option for reliable fat sparks to light richer mixtures.

[rdubandit]

I've done the stick coil conversion to clean up "clutter" under the tank.  Zero performance difference according to my "seat of the pants" dyno.  

[rdubandit]

[Blubber]

If you do that...  please change your handler from BillytheKidd to BillytheStick 

[Billythekidd]

10 hours ago, rdubandit said:

OK, yeah the dynas do take up a bit of space but with having a new loom built it should tidy some of that up anyway. Ill be keeping that diagram as I might put stick coils on my slingshot, which coils did you use? 

[370steve]

1 hour ago, Billythekidd said:

OK, yeah the dynas do take up a bit of space but with having a new loom built it should tidy some of that up anyway. Ill be keeping that diagram as I might put stick coils on my slingshot, which coils did you use? 

Ignitech do stick coils and they come with the connectors for your loom

[george 1100]

I've got stick coils on 3 of my bikes and no issues here. I used the gsxr1000 129700-4400 coils but there are many others that will work

[Danm54]

Fitted sticks on my bikes too, not for performance but reliability in the wet.

The DR350 used to stutter and miss all the time in the wet, even with a new coil and ht lead. Now it doesn't miss a beat even riding through near airbox deep rivers.

[Oilyspanner]

Main benefit is as already said - makes space under the tank, weigh less and it's easy to 'clear the decks' when you do valve clearances. Did mine quite a few years ago, zero problems.

[rdubandit]

16 hours ago, Billythekidd said:

OK, yeah the dynas do take up a bit of space but with having a new loom built it should tidy some of that up anyway. Ill be keeping that diagram as I might put stick coils on my slingshot, which coils did you use? 

Same as above: Denso coils from an '05 GSX-R600 (US), #129700-4420 J0440 (measuring 1.5±0.1 ohm) sources from Eblag.

[Dezza]

8 hours ago, rdubandit said:

Same as above: Denso coils from an '05 GSX-R600 (US), #129700-4420 J0440 (measuring 1.5±0.1 ohm) sources from Eblag.

I used some from a GSXR750K1 and they go on OK. The connectors though are fairly expensive and fiddly, and are available in the UK from Kojak's Cat in Scotchland

[rdubandit]

7 hours ago, Dezza said:

I used some from a GSXR750K1 and they go on OK. The connectors though are fairly expensive and fiddly, and are available in the UK from Kojak's Cat in Scotchland

On this side of the pond, I use cycleterminal.com for connectors and terminals.

[mikeyd]

I use 2001 gsxr 600 coils ( 1.2 ohm's) Works great to clean up under fuel  tank.  1.2 x2 coils like the diagram, works great with Dyna ignition or aftermarket ECU. Aftermarket ecu needs ign. booster. They do stick up out of the hole a bit though.

[Scoobie666]

I’m just fitting dyna 2000 ignition to my 1100m. Anyone one know which coils I could use with it and source in uk? I think  dyna say 2.2 or 3 ohm coils 

[Danm54]

I used Yamaha coils, slightly shorter than the gsxr ones.

[Gixer1460]

9 hours ago, Scoobie666 said:

I’m just fitting dyna 2000 ignition to my 1100m. Anyone one know which coils I could use with it and source in uk? I think  dyna say 2.2 or 3 ohm coils 

If you want COP's - you won't find any in that rating. You must use any of the ones easily sourced and wire them in series so the resistances add up to an acceptable level. There are mucho plenty threads on OSS about COP types used - use Search!

[rdubandit]

On 8/17/2020 at 3:33 AM, Gixer1460 said:

If you want COP's - you won't find any in that rating. You must use any of the ones easily sourced and wire them in series so the resistances add up to an acceptable level. There are mucho plenty threads on OSS about COP types used - use Search!

I did a few searches after reading this thread.  I went through ~20 pages of nothing related and found only this thread.  I searched "coil on plug," "COP," and "stick coil."

[Gixer1460]

26 minutes ago, rdubandit said:

I did a few searches after reading this thread.  I went through ~20 pages of nothing related and found only this thread.  I searched "coil on plug," "COP," and "stick coil."

Here . . . . . Searched COPs!

 

 

 

[mikeyd]

If you are using Dyna 2000, it runs in wasted spark so using 2 gsxr 600/750 coils per leg = 2.4 ohms - perfect with the dyna.

[rdubandit]

thanks @Gixer1460 

Edited August 28, 2020 by rdubandit

[rdubandit]

On 8/16/2020 at 5:56 PM, Danm54 said:

I used Yamaha coils, slightly shorter than the gsxr ones.

@Danm54I've searched for years for shorter stick coils.  Which Yamaha coils are you using?

[GeorgeEI7KO]

will the likes GSXR 600 Sticks work on a stock ignition system? Or does it have to be aftermarket? 

Edited August 28, 2020 by GeorgeEI7KO

[Gixer1460]

6 minutes ago, GeorgeEI7KO said:

will the likes GSXR 600 Sticks work on a stock ignition system? Or does it have to be aftermarket? 

Stock coils are 3 ohm and the stock ignition isn't recommended to be used with Dyna 2.2 ohm Grey coils due to the increased amps they will pull through the ign. amp output transistors. Stick coils resistances vary between 1.0 and 1.5 ohms so when paired, some will be ok, some will not - aftermarket ign. outputs are usually a bit more resilient.

[GeorgeEI7KO]

14 minutes ago, Gixer1460 said:

Stock coils are 3 ohm and the stock ignition isn't recommended to be used with Dyna 2.2 ohm Grey coils due to the increased amps they will pull through the ign. amp output transistors. Stick coils resistances vary between 1.0 and 1.5 ohms so when paired, some will be ok, some will not - aftermarket ign. outputs are usually a bit more resilient.

Ah, ok that makes sense then. Cheers.