MATT93

So I bought myself some Rota Grid Drifts 18 x 9.5 .
I know the arches need rolled for the rear.

Though, will the front need rolled too? I think spacers are required to clear the front brembos, would I be right? 10mm spacers all round do?

Tyre size ill be fitting will be 245/40/18

Thanks!

kevfawcett

iTrader: (7)

You'll struggle to get that size tyre on (I'm presuming you have a bugeye?) without serious arch work front and rear, especially if you're using 10mm spacers. You'll also need camber bolts.
I believe a 3mm spacer is enough but most people use 5mm and 225/40/18

lofty35

I had all my arches rolled on my bug when i i had grids.
As u have brembos & putting front spacers on then id have the front rollled to mate.

south_scoob

They will go stright on IF you get low enough offset. (Et35 etc) impreza arches are plenty big to accomadate 18s

The Trooper 1815

iTrader: (31)

Not worried about driving characteristics then

kevfawcett

iTrader: (7)

That is very wrong, one of the reasons they struggle to go on is the relatively low offset. It's not the diameter that is the issue, it's the width (and offset)

south_scoob

But the lower the offset the more they clear the struts!? I dont see why you would need any work to get the right 9.5j wheels on a scooby (new age) but i could be wrong. Classics would definatly need archwork and spacers imo as they are tiny

kevfawcett

iTrader: (7)

Yeah, the more they clear the struts but the closer they are to the arch. A 9.5" wheel with an offset of 35 and 10mm spacers will definitely sit outside of the arch line. Combine that with a 245/40/18 tyre and you will definitely need some arch rolling, and probably flaring as well

That combination would never fit a classic without arch flares/extensions

scoobyboy1

iTrader: (16)

Biggest tyres Id go for with no arch flares would be 235/40/18 tyres

MATT93

From what I've heard I think I'll put 225/40/18's on - I already have the tyres on my other alloys so I can just swap them over.
Have rang a place to do the arch rolling and they're going to supply 5mm spacers. Will probably go 5mm all round if I can without any big problems.

I just don't want a mega stretched look, think the 225's will be close to spot on.

Matthew.

MATT93

I was just using the 10mm spacers as an example. I'm going to go with 5mm instead and 225/40/18 and still roll the arches

MATT93

What's the big difference, just because they're wider?

BrownPantsRacing

iTrader: (6)

I have 18x8.95" ET35 on my newage without spacers, with camber bolts all round and I still needed the rear arches rolled.

You WILL need them rolled to fit 9.5" wheels and 245 tyres will need a full arch stretch too.

with grids it's all about the shape of the spoke hitting the caliper not the offset issue, hence spacers required.

south_scoob

closer to the arch meens the diamater is the problem...

south_scoob

Trust me u can fit 9.5 rims on a newage as long as u get a low profile tyre

south_scoob

It will improve stability but decrease responsiveness

kevfawcett

iTrader: (7)

No, because he could have an 18x8" wheel with an offset of 35 (which is closer to the arch than standard) and not have any issues at all

Nobody has said you can't fit them, just that with the width, offset, spacers and tyres suggested in the original post, the arches would need a lot of work.

Do you not think it's strange that there are 3-4 people advising him of one thing, and just you saying the opposite?

MATT93

ill check the offset shortly..

Offset is 36

BadBadLeeroyBrown

I have 18x9.5 grid drifts on my bugeye, 225/40/18s went on without arch work, but they are stretched and look silly imo. now gone for 245/35/18 (all without spacers, don't see that they are needed at all) but have had the arches pulled and rolled so fits no problem at all. Ideally I'd like to go for 265s to have no stretch at all.

Trinity

iTrader: (28)

How to ruin your Impreza in one hit. 9.5" Grids.

May as well just buy a Golf.

MATT93

Looks pretty good imo.

MATT93

Is it an STI? Apparently they need 5mm on the front to clear the Brembos.
I have 225/40/18 on my current alloys so will swap them over and see how they look

kevfawcett

iTrader: (7)

You must not be lowered very much, if at all for them to have fit without any arch work initially. The bold bit is exactly what I said would be required, and that's with a slightly smaller tyre than initially suggested by the OP

jura11

iTrader: (7)

Hi there

Yes you will need arches have rolled and coilovers too,without the coilovers this will and can looks odd

Front arches you will need rolled,but I would say this depends there,you will see how you get on,but rear you will need for sure

Spacers you will need only 5mm at front if you are running Brembo,if you are running AP or K-Sport or D2 you don't need any spacers

We are run 245/40 on our wagon without the issue although depends on the camber and toe setup,you can have rubbing issue and this can be sorted only via raising ride height at back

And agree you will need camber bolts,without them I wouldn't fit 245/40 tyres

Hope this help

Thanks,Jura

Hi there

He will be OK to running 245/40,we are run on the wagon 245/40 and wagon have much narrower rear end than any WRX or STI

Serious arch work,if you mean only rolling arches then I wouldn't say this is major arch work

Yes camber bolts will only helps

Here are pictures of our wagon on 245/40 ZR18 and Rota Grid Drift 9.5JX18" ET38



And on this picture we are run 225/40 ZR18 tyres with same wheels(Rota Grid Drift 9.5JX18" ET38)



Thanks,Jura

MATT93

Thanks for the information Jura. I'll send you a PM here.
Matt.

kevfawcett

iTrader: (7)

Thats all good information Jura, but that's not exactly low and I'm guessing you have a lot more camber than standard?

Trinity

iTrader: (28)

You bought an Impreza for looks? Weird.

jura11

iTrader: (7)

We are run camber -2.00 at front and -1.5 at rear

Not sure,but we are been against the slamming the wagon,lowered has been just right

Hope this help

Thanks,Jura

MATT93

**** away off. I bought it because I wanted it. I'll make it look how ever I want!

Trinity

iTrader: (28)

and ruin the reason why the Impreza is a great car (and probably the majority of the reason you wanted it), i.e the handling.