Alloy wheel size for WRX STI 2009
 

Looking for help on the wheel specs on the 2009 STI

are they 5 x 100 ? whats the ET and PCD ? anything else i need to know?


Im looking at buying some Pro race 1.2 in 18s but dont know what other dimentions i need to be looking at.

thanks

5x114.3

ET35 >>>>ET 53

18x8.5 or 18x9

Thanks ! What does the et do? Why such a variance ?

anything less than a ET 45 and you will be getting into arch rolling,

I have Rota Force 18x8.5 ET45 and they are just fine, (even with Tein lowering springs)

245/40 x 18 tyres

Make sure the Pro race clear the calipers as well

So I need et 45-53?

yes - 45 or upwards,
lower can be used but the rears will rub, so will need rolling, which is easy enough (if done by a good outfit), then you can go down to about 35,

just don't fit spacers - I understand they ruin the handling

Okay , can you explain what et is ? Is that how far the wheel sticks out in essence ?

Yes in essence - but it takes other things into account as well, like the dish of the wheel,
http://www.1010tires.com/Tools/Wheel-Offset-Calculator
use this to see how existing and new would be different - then go stick your head in the rear wheel arch and see the clearance you have between existing tyre and arch - will show you how much room you have to play with.

Also speak to Mags at Ruislip Wheel and Tyre - he knows everything about wheels and Scooby fitments and will tell you what you can get away with and what will need work.

Ian..

et is basically offset - or how far your wheels stick out of the arches - anything less than ET45 and your wheels will start to rub on the arch lip as they stick out to far

so really i need 45-53.

but as close to 45 as poss for them to fill the arches best

ps thank guys

correct yes - but again be careful on alloy wheel width

yeah, wicked i think ive got it now . fingers crossed!

know of any alloys to look at? motorsport style.

been looking at , Rota, Pro race 1.2 , and Work wheels.

18x9 ET35 on a hatch sits nicely, PM maggy on here he will tell you :)

Will fitting 19" alloys effect the performance/drive on a sti hatch? Looking at a set of the 19" multi spoke off the wrx sti sedan, currently on 17" standard alloys

Cheers

Anyone?

Yes 19's will ruin handling, Subaru put time and money into developing what works best.

18's with decent tyres and suspension set up = sorted

Even fitting the genuine sti 19" alloys onto a hatchback? As there sold for this car as a optional extra

Adam

New wheels
 

https://cimg4.ibsrv.net/gimg/www.sco...716ab9b946.jpg


https://cimg6.ibsrv.net/gimg/www.sco...3f89ce277a.jpg

Does anyone know the standard sizing to the 330s 18 alloys ?

I think they're 5x114 and 8j?
What's the et?

They are 8.5 x 18 and the offset is 55

Perfect ! , now the scoob is a little lower I think if I run anything bigger than 8j the tyres will hit the rear arch

So if I ensure I get 8.5j and 55 offset or 9j and 50 offset but keep the same tyre the slight stretch should just miss my arch :) happy days ??

Also what's the hb?
I know you can get spigot rings to adapt this but what is the standard size?