problems?

stiddy · 30-01-2006, 06:13 PM

heya all..

Was talking to a mate with an AU sedan who wants to put 20inch rims on it..
I did do a search and didnt find anything..

So yeah issues with 20's x 8.5 on an AU?

|2aebird · 30-01-2006, 07:29 PM

I am also planning on putting 20's on my AU and have been told of no problems with fitment... The only problem being the over all diameter of the tyre, apparently you are allowed to go upto 15mm bigger than your original overall diameter but 20's with the right size tyres on them are 16mm larger than the original overall diameter. So for the sake of 1mm im still putting 20's on my car cause they just look soo damn hot, hahaha.

|2aebird.

stiddy · 30-01-2006, 08:40 PM

is this really the case?
what about the load on the power steering pump will it cope?
and will it be able to turn full lock and now scrub and stuff?

anyone with 20's on an AU?

rob_liss_lms10 · 30-01-2006, 09:05 PM

the larger the rim-the smaller the tyre isnt it..so in reality a 20in rim with 20-25 series combo would be same size as 16 in rim and 65-70 series tyre.If that wasnt the case the speedo would be out.Please throw rotten vegies at me for my stupidness if the coments I have made are outlandishly ignorant.

snypereb · 30-01-2006, 11:45 PM

20' stiddy that is huge mate didnt you just get a heap of work done to the car they must be paying you to much!!

|2aebird · 31-01-2006, 08:00 PM

Quote:

Originally Posted by stiddy

is this really the case?
what about the load on the power steering pump will it cope?
and will it be able to turn full lock and now scrub and stuff?

anyone with 20's on an AU?

The only reason that load would increase on the power steer pump would be if you went to a much wider tyre and shouldn't scrub as long as you get the rolling diameter of the tyres right.

Quote:

Originally Posted by rob_liss_lms10

the larger the rim-the smaller the tyre isnt it..so in reality a 20in rim with 20-25 series combo would be same size as 16 in rim and 65-70 series tyre.If that wasnt the case the speedo would be out.Please throw rotten vegies at me for my stupidness if the coments I have made are outlandishly ignorant.

You are right rob, but it would be more like a 50-45 series tyre on a 16'... Another thing to remember is that the ride will be considerably more rough because of the lack of sidewall on the low profile tyres and that combined with stiff suspension would make it twice as bad.

buickman · 31-01-2006, 08:05 PM

They should look great.But insurance might be a hurdle. I think most allow 19" for AU's without penalties.

blackers10 · 31-01-2006, 08:10 PM

i have seen a AU fairlane with 20" vault crystals on it and it looked like it fitted fine

and a BA isnt that much different? and theres lots of those with 20s..so i dont see a problem??

as long as offset and everything is correct..u shouldnt have a problem..

Casper · 31-01-2006, 08:58 PM

Most insurance now allow +2 on the largest diameter fitted to the range. Fortunatly for us, the T3 is an AU and had 18" factory rims... so 20" is allowed in most cases.

HLC · 31-01-2006, 10:31 PM

Quote:

Originally Posted by Casper

Most insurance now allow +2 on the largest diameter fitted to the range. Fortunatly for us, the T3 is an AU and had 18" factory rims... so 20" is allowed in most cases.

news to me. and i like it. :hihi:

Casper · 31-01-2006, 10:34 PM

Quote:

Originally Posted by HLC

news to me. and i like it. :hihi:

Check with your insurance though... thats just a rough guide.

stiddy · 31-01-2006, 10:45 PM

yeah but will they have issues fitting in under the front without hitting any suspension components or anything like that?
i know they will fit under the rear.. just the front im worried about..