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pitucas
07-11-07, 00:09
The spark plugs i have fitted on my 155 Q4 were Bosch WR6DTC (3 lateral electrodes), the recommended ones!

But i wan't to change them. I've discovered that they are discontinued. They were changed by Bosch to WR6DC+ (just one central top electrode).

Anyone of you is using this last ones?

Or are you using another ones? Wich ones?

My Q4 is using a KN filter (box replacement) and a Squadra chip besides a direct 3' exaust ...

What spark plugs do you recomend???

wrinx
07-11-07, 00:17
Sub mentioned some numbers for plugs, think they were Golden Lodge!

wrinx

Juan AR155Q4
07-11-07, 02:52
I?m using Bosch Super 4 FR56 (4 electrodes) and no problem.

arjunior45
07-11-07, 08:22
I use the NGK reccomanded from Evocars {sorry I do not remember the code type} and a friend of mine with Squadra's chip mounted use them too with no problems. When he had mounted on the Q4 he noticed a + 200 rpm in idle and corrected it, that's the only problem he had. My idle with OEM eprom was at 1150 rpm.

Nick

pitucas
07-11-07, 11:11
They're the NGK BP6ET?

Juan AR155Q4
08-11-07, 02:25
B8EGV are the recomended for the Evocars chip.

arjunior45
09-11-07, 14:24
B8EGV are the recomended for the Evocars chip.


That's the one. Used mostly by Kawasaki, Suzuki and other moto.