gsxr denso coil on plug fitment on spark plug HELP !!!

[frotou]

Hi all,
I'm looking for this information without succes ... I have suzuki gsxr denso coil and I want to use them on my toyota 4age engine with 500r cdi . It has been done before but I don't know if the coil have to ''clip'' over the spark plug or only had to ''sit'' on top of them. The coil I have do not clip on the spark plug ; the end of the plug is too big.

Any modification needed ?
Or the coil just have to be on top of the plug ?
Or I have to change the spark plug model ?

Seem very strange to me because all the gsxr coil are the same and has I know the spark plug end for toyota 4age also ... :confused:

denso coil part number ; 129700-4400 J0440 (suzuki gsxr 1000)

Any experience will be very helpful !:o

Claude

[frotou]

ok, what I found on the net is I need plugs with removable screw top.

Anyone can confirm ?


Also did I need resistor or non-resistor spark plug with this set up ? (cdi 500r + coil on plug)


Thanks for any help !

Claude

[MRMRacing]

Most uses non resistor plugs with CDI. You can search the forum on plugs and you will see many threads on the subject.

[frotou]

No ones talk of the fitment over the spark plug or the type of spark plug used . I continue my quest for the question ! :)

Claude

[Wroom]

No ones talk of the fitment over the spark plug or the type of spark plug used . I continue my quest for the question ! :)
Yes, the coils must clip on to the plugs. So you must use plugs with the connection bushings taken off.

And you answered it yourself in a previous post. ;)

[frotou]

Well,
Spark plug with removeable tip and no resistor are not very common (read inexistant in 7/8/9 heat range)

I see on the net other cars with the same coil on plug and with solid tip spark plug number ; what is the trick ?




Claude

[frotou]

Got the answer ! The trick is to modify the spark plug tip on a lathe to the correct size !

Never heard of it before.....

A VERY special thank to Enzo @ Enzo racing .


Claude

[krbtrading]

If you have a turbo engine silver plugs like f3cs from bosch has removebal tip and no resistor,threads are 14x1.5 no problem using these fr at least 225 hp pr cylinder