Samj

I'm fitting a VF48 Turbo and other bits to my WRX soon, any advice on the best spark plugs and clutch to fit for comfortably running 350+ hp?

the shreksta

iTrader: (20)

2.0 wrx or 2.5 wrx?

Samj

Sorry should have stated, 2.5 WRX Wagon (Hawkeye)

the shreksta

iTrader: (20)

so i believe the ones you want are a slightly colder plug which would be the ngk ILFR7B ones, give alyn @ as performance a call im sure he will give the best advice/price

0191 410 3770

Hawkeye D

I have an ACT clutch in my STi Hawk. Fully forged and running 342bhp and 410ft lb. Never had an issue, although I think some performance clutches are a little easier on the right leg now!

It's pretty heavy, but has a good robust feel at the same time. I'm not a launcher, so it should last me a while.....longer than my block did anyway!

Samj

Would the STI clutch not be a suitable upgrade for a WRX looking to run no more than 360hp? Or is it just wiser going with a performance option regardless?

MarkRF

6 speed clutch won’t fit the 5 speed box unless you fit 6 speed flywheel and starter?

Im not sure there’s much difference in clamping force between the two oem items anyway.

stockcar

huge difference between the torque ability on a factory 5spd and the 6spd clutch set-up BUT the 6spd assembly will not fit in a 5spd bell housing without a massive amount of webbing removed.........

it its a 2.5 WRX then he also has the later PUSH type set-up rather than Subaru's more traditional PULL clutch design fitted to 5spd 2.0 Turbo's and the 6spd STi variants

Samj

Is the Blobeye WRX a 2.5 like the Hawkeye, or does this use a different clutch still to my model?

stockcar

new-age 2.0 WRX cars ran from 2001 MY to 2005MY, never had the 2.5 fitted and use the original style clutch...........

Hawk 2.5 WRX started at MY06 and switched to a totally different clutch arrangement

MB84

Latest from NGK are the Premium RX Spark Plugs (Ruthenium) but you'll have to order from Japan as you can't find them in europe yet, I've ordered some from RHDJapan (I haven't received them yet).

The full link is here just use Google Chrome and translate to english and you can get the info for all the manufacturers not just Subaru for what spark plugs you need and the latest upgrade available..... For my car EJ205 engine I had to order the LFR6ARX-P this is the upgrade from the ILFR6B if it helps.

http://www.ngk-sparkplugs.jp/search/index.html