Wich sparkplug for SJ with ADA head, b pipe and msd ?

[Christian_83]

Hey guys
I need two new sparkplugs for my 701 62T superjet, i has 35cc ADA head, msd enhancer and b mod pipe and jetflow valve.?
It has to be with long threads to the new head, what sparkplug should i run? i would prefer NGK, but wich ?
Thanks

 

[shepster]

Hi, NGK BR8ES

 

[guiness92]

what he said

 

[2lick]

i third it

 

[Matt_E]

No need for resistor, but won't harm it either way. B8ES works fine.

 

[EvanB85]

Is an extended plug needed on most aftermarket heads? I guess I have to just do a side by side comparison?

I have an Ocean Pro head for my 650 ready to be installed - in case anyone know specifically.

 

[Matt_E]

Many aftermarket heads need a longer spark plug (ES)

 

[Powder]

I run the BPR8ES not sure if the P makes that much difference but I know it doesn't hurt anything.

 

[Don 79 TA]

P is for projected tip
kindda helps to make sure it gets burnt off
honestly i can't tell a difference between the two, but i usually use P's

i use BPR7ES
i use a hot plug since i have a long no wake zone to go through, and the plugs always look great. i also use alot of oil when i mix too

i've even toyed with indexing the plug by moving the domes around, didn't feel anything either.

 

[Superjet3]

The BPR8ES is the plug used in the polaris. It extends the electrode out further into the cyl.

 

[Christian_83]

Thanks guys, bought some B8ES
Great with you guys

 

[Mark44]

I use BR8ES-S the extra S is for the top of the electrode. It is a steel top and doesn't unscrew from the plug it won’t make the plug wire boots all black inside with dust.

Mark44

 

[GUMP]

I use BR8ES-S the extra S is for the top of the electrode. It is a steel top and doesn't unscrew from the plug it won’t make the plug wire boots all black inside with dust.

Mark44

i use that one 2

 

[Matt_E]

Good to know! Those damn things are always falling off and most inopportune moments.