hi i have bought some porsche wheels am looking for spacer size and tyre size help please there 17 inch twists fronts are 7j et 55 and rears 8.5j et 50 the car is currently on koni fsds and eibachs but think it will need to to go lower so coilovers are on the cards.but dont want a ridiculous stretch as its a daily driver ant help greatly appreiciated

you are going to need hub adapters before anything else.............

yeh i know i need adaptors there are part of the spacers just the tyre sizes im stuck on esp the rear

hi i have bought some porsche wheels am looking for spacer size and tyre size help please there 17 inch twists fronts are 7j et 55 and rears 8.5j et 50 the car is currently on koni fsds and eibachs but think it will need to to go lower so coilovers are on the cards.but dont want a ridiculous stretch as its a daily driver ant help greatly appreiciated

25mm front spacers 215-40-17

20mm rear spacers 215-40-17

Edited 15 July, 201015 yr by warwick hunt

What kind of stance will that give

215 on the fron it massive there only 7j. Depending on what your after, 195 for looks or 205 for normal. It'll need slightly wider like 215 for rear. Having a bit of stretch on the back and no the front also looks gash imho. Adapter sizes as above.

What kind of stance will that give

should look ok, depends how low it sits.

Thanx for the advice

215 on the fron it massive there only 7j. Depending on what your after, 195 for looks or 205 for normal. It'll need slightly wider like 215 for rear. Having a bit of stretch on the back and no the front also looks gash imho. Adapter sizes as above.

215 fit perfect on 7" wheels...obviously backs will be stretched but if you have diff tyre sizes rolling radius will be different front/back unless different profiles are fitted..

So 205 40 17 front and 215 40 17 rear will be fine and a good compromise with out effecting rolling radius

Edited 17 July, 201015 yr by lee_vrs

having 215 on the front and 215 on the rear would give a different rolling radius. the fronts will look much bulkier and horrible. I know what your saying but it's all about looks. he hasn't bought these alloys for performance etc..

So 205 40 17 front and 215 40 17 rear will be fine and a good compromise with out effecting rolling radius

having 215 on the front and 215 on the rear would give a different rolling radius. the fronts will look much bulkier and horrible. I know what your saying but it's all about looks. he hasn't bought these alloys for performance etc..

how exactly?

So 205 40 17 front and 215 40 17 rear will be fine and a good compromise with out effecting rolling radius

aye..more or less ...backs will be 4mm bigger overall...:yes:

how exactly?

Because of the stretch on the back the sidewall will be facing in rather than straight up like the fronts. This will then mean that the sidewall is actually a bit smaller than the front as it is going inwards as well as away from the wheels. So wont be much but there will be slightly different, if you measure from the floor to the top on front and back the backs will be slightly smaller than the fronts.

Edit to re-word it, quite had to put into words

Edited 19 July, 201015 yr by pip_vrs

Does the rear wheel RR matter?

not relly as long as it's simular to the fronts. It will look stupid if it's completly different too