For a modded MY00 I have the option of the above. Anyone know the difference with the A vs B and whether the Bosch plugs are good?

 

Hi John.
I have always had Jap cars and i have testet alot of plugs and i can tell you that Bosch plugs dont work for long in a jap engine.
go for NGK!.
I have just replaced my HKS plugs with NGKPFR7.
And the misfire i had for a long time has disapeart!.

Skassa

 

Thanks, what is the difference between PFR7B and PFR7A?

 

Is it to do with temperature range?
(He says trying to sound knowledgable but wont last)

Pete Stone

 

I think the 7 is the temperature compared with 6 as standard on a UK. What is A and B?

 

7 is the temperature.
Don't know what A and B are.

I'd go for NGK also. They're OEM and as a plus, they're more reliable.

 

I'd refit standard plugs unless you're seeing a problem...how do the OE ones look?

Richard

 

The diff. between A and B is That the iridium tip is longer on the A type!
Just look in a ngk katalog and you can see it.
The B plug is the one to use in your engine.

Skassa

 

The OEM ones are fine except the tip of number 3 is not as good as it could be - a bit blunted. With this in mind and modifications I need number 7 plugs, so NGK PFR 7B it is then. And some nice Motul oil.

 

I knew i shouldn't of sounded knowledgable!
I just thought i'd remembered reading it here somewhere.

Pete S

 

Thread hijack... What would everyone recommend for a modified 94 uk turbo??

David

 

ttt