steve ball

Performing a millers oil change this week and have looked at my cars history and i think it can do with a new set of plugs? What would any of you recommend? Am i right in thinking pfr6b' s are the correct type i need? Any help appreciated.

steve

exvaux

iTrader: (1)

hope so thats what i just ordered for mine,

richiewong

Yep NGK PFR6B's

steve ball

nice, cheers for that!

Will order them tomorrow, Do i have to change the gap on them?? Or put em straight in???

steve

Dave Dixon

40 quid in halfords but must be cheaper elsewhere.

Manic Mav

I would certainly check them with a feeler gauge, just because they are new doesn’t mean they are set right.

MarkFitz

if you're running higher than oe boost then you might want to go one grade colder (PFR7B). Will slightly compromise engine start and idle stability but will protect from overheating at full-load.

exvaux

iTrader: (1)

16 quid if your a member of ayrshirescoobies

steve ball

yep, will be running slightly more boost as i have a vf 35 fitted to my my00 uk classic, not overly fussed about spending a bit more just want to get the right plugs, so should i head down the pfr7b route??

steve

james-wrx

Sorry to hijack but if they get too hot what happens?

dan83590

PFR7B's. 6's are standard, 7's if you plan on raising boost. Although 6's will still be okay if you raise boost and fuel and tad.

joz8968

iTrader: (13)

Apologies for hijacking too... I've just bought a replacemnt ECU with ScoobyECU in. Is it wise for me to upgrade from my current 6's to the 7's, to compensate for the boost increase from the my car's std 11.47 to 16.11psi? or are the 6's okay for this level of boost?

Thanks.

L33_WRX

hijack here too... what are the best plugs for 02 WRX? I've always used denso irdiums on my other cars - are these best for a wrx?

dan83590

I have a chipped ECU. Andy S advised me to use the 7's but the 6's will also work.

bugeyeandy

NGK PFR6B's are the ones. Thats what I run in my 01 WRX

MarkFitz

Yep, if you're gonna raise boost then go for the 7's. Being a grade colder means they dissipate heat from the electrode faster, so under sustained high-load (1bar+) conditions, you run less of a risk of generating hot-spots on the plugs.

Having said all that, I ran 6's at 1.2bar for a couple of years with no probs, including euro-touring in summer. When I swapped em for 7's they had no signs of det damage but where a bit on the greyish-tan side, ie. well hot!

NGK's are safest bet, try searching on here for horror stories associated with Denso's...

wrxcraig

having the PFR7B's Platinum plugs fitted tomorrow, cost me £45

Phildodd06

Is that supply and fit? if so, thats a good price

wrxcraig

I brought the bits from scoobyparts,i got

Millers CFS 10W 60 oil
Genuine filter and sump washer
PFR7B platinum plugs
Went for there heat wrap and ties and got a box of millers octane booster, im goa change the diff oil, gear box oil and fule filter myself but not sure what quality oil to get.
He only charging me £60 and stamping my book.

Phildodd06

Not bad i supose
I got this fluid for my Gearbox and diff's...SX75W-90
You need 6 litres in total,
4 litres for the gear box
0.8 litres for the rear diff
1.2 litres for the front diff

Gearbox fluid you drain from underneath but have to refill from the dipstick hole, with a funel and a piece of hose pipe.

Also the rear diff you will need a half inch drive extention bar to undo the plugs, mine were done up very tight, so be carefull you dont dammage the head.

I still cant find how to drain the front diff.....