Rear wheels

[random hero]

Will a 10.5" wide /18" rim with a 54 offset fit on the back of an 88 944 turbo ???

 

[Diver944]

The standard rears on an '88 should be 16x8 with an offset of 52mm

You can use this calculator to determine the difference:

http://www.1010tires.com/WheelOffsetCalculator.asp

I think clearance will be a bit tight.

 

[random hero]

According the guide they will need to be extended by 30mm to fit,i tried some 9.5" on a bit back and they sat out slightly to far as they were a 47mm offset so i thought these might just fit on !!

 

[Fen]

If you know where 9.5" ET47 sits then 10.5" ET54 will be 1/2" further outboard on width and 7mm further back in due to offset, in other words overall 5mm or so further out than the 9.5" wheels were.

edited to correct 1.2" to 1/2" as I meant to type

 

[random hero]

Thanks fen,thats made it much clearer for me to work out.

 

[Guest]

10.5!!! Them's big wheels Sir. Hope you get them on, would love to see a pic of the result if you do.

 

[Big Dave]

It might look nice ,, BUT i bet itl ride like a bag of nails....
I had some 10" wide 18",s on my cabrio + it was awful.....[8|][8|][8|]

 

[random hero]

Just found out the rears are 10" wide,so will they be a better fit ??

 

[Fen]

In that case they will be half of half an inch less outboard than I said above - so 6mm or so. In other words pretty much exactly where your 9.5" ET47 ones were.

 

[Hilux]

The standard rears on an '88 should be 16x8 with an offset of 52mm

951's post 88.5 are rears 9" (at least mine are)

Will a 10.5" wide /18" rim with a 54 offset fit on the back of an 88 944 turbo ???

Err forgive me but why overtyre a car (and reduce the aspect ratio) without resolving the suspension travel and damping rates on a car that has a neutral 50:50 handling that is legendary??

Can only lead to harsh suspension and increased grip on the rear that will not give any warning when it lets go at albeit higher corner speeds. (waits to be shot down in flames [])

Note the tyre/wheel sizes etc on standard Boxters for example, if Porsche wanted to improve handling then they would 'overtyre' the car accordingly. 911's have massive wheels on the rear for obvious reasons but they still recommend you dont track them without 3/4 fuel for the added weight

 

[random hero]

Niot sure what mine had on as standard ,it had 18" on when i bought it. Im wanting some new 18"s (3.6 turbo style) just for road use but for the track i will probably just get a cheap set of cup 1's. My turbo is an august 88 model so is right on the change over ,maybe one of the last 220's made ??

 

[Peter Empson]

I seem to remember there is a slight difference between the clearance on most 944's rear arches, it's a design feature [] and if only a few millimetres then probably nothing to worry about.

The only other reasons I can think of are a spacer as you mentioned (should be easy to spot through most wheel spokes) or something being out of whack with the suspension/body.

 

[Riverside]

It's normal. If you go to a show or other gathering of 944s you'll see they're all like that to some degree. I remember worrying about it (silently) until the first time I went to a show in my old car & parked up with a load of other 944s []

 

[Guest]

Thanks guys thats put my mind to rest. on another note i have some rust on the bottom of the front wings any idea as to cost to get ride of its the only fault i can find. ive changed the front to all clear lenses , ive put on smoked black indicators , ive added an S2 badge to the back and i'm thinking of black nuts ( the wife told me once youve had black there aint no going back ha ha ) for the 17inch cups , im after some mats as the ones i have are out of a 911 and dont fit well anyone recomend a supplier , oh and i need a towing eye cover and then an engine bay clean ......... oh ive also seen the dash trim kit on garage9s web site anyone had it done? yep feel more sickies coming on ha ha and not forgeting the novo virus that'll give the few days i need to clay bar .

 

[Diver944]

I took this picture a few years ago to try and illustrate that it's normal for the nearside rear wheel to be closer to the arch than the offside. The marks on the wood are 1cm apart and the nearside wheel was 3cm inside the arch. The offside was 4cm.

This was with standard S2 rear tyres of 225 width on an 8" rim - it will be much closer with wider tyres and wheels.