Neanderthal

iTrader: (6)

I've negotiated a good deal on some 1 week old MY01 alloys that I want to fit on my MY97.
These are the ones I'm (hopefully) getting.



I've got 2 niggles though;
1: will they fit on my car?
2: He states the tyres as RE011 215/45x17.

Now having read the posts here I think the trye size should be 205/45 or 215/40?
The tyres I had on the car when I got it were wrong (since changed to the correct size) and I don't want to get caught out again.

Matt

[This message has been edited by Neanderthal (edited 01 October 2001).]

polarbearit

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:<HR>Originally posted by Neanderthal:
<B>
I've got 2 niggles though;
1: will they fit on my car?
2: He states the tyres as RE011 215/45x17.
[/quote]

1 Yes they will fit
2 This is the standard tyre size for MY01 and newer, it is too big for MY00 and older and will rub the arches/make the speedo inaccurate I understand. As you say the correct size is 205/45/17 or 215/40/17 for your MY97.

Jon

Neanderthal

iTrader: (6)

Damn, I thought it a bit strange. I was used to seeing RE010 stated with MY01 wheels.

Glad I checked now. Saved me from wasting too much of the sellers time.

Matt

Neanderthal

iTrader: (6)

Blimey O Crikey!

Came back from site this morning to find all these posts.

To say I'm a little is a understatement.

I've done search on Scoobynet to try and find a past discussion on this (vaguely remember one months ago). I found one that gave the mathematics to work out the rolling circumference of the tyre.
Fortunately there was also a pointer to TOYO's web site that does it all for you. Here are the results;

MY97 standard 15" wheel + 205/55r15 = 607mm
MY01 standard 17" wheel + 215/45r17 = 626mm
MY01 standard 17" wheel + 215/40r17 = 606mm

If I were to put the 17" + 215/45's on mine I'd increase the rolling circumference by 19mm. This would doubtibly make the speedo read a little slow (probably make it correct ) The tyres the car had on when I brought it were 195/45r15 and that equals only 557mm, 50mm diference (I only checked tread depth not the tyre size ) no wonder I thought the car was going quick!.

I don't want to make another mistake. This is why I'm being so cautious about these wheels/tyres.
The question is, will increasing the overall diameter by 19mm (or should that be 38mm??) will make it rub/foul the suspension (standard MY97) ???

Matt

Adam M

I actually think daves post clears up most issues here.

The circumference is what is increased by 19mm, not the radius or diameter. The radius of the wheel will have increased by around 19mm/6.2 which is roughly 3mm.

So these tyres about about 3mm bigger than 215/40 17s, when both are brand new.

I think you will find that there is significant enough variation in tread depth and expansion of tyres due to pressure and temperature, that these 3mm will make bugger all difference.

I reckon you should go for it. If the tyres are slightly warn, it is fair to say they will probably have the right radius anyway, and there width is the same anyway.

Dave t-s is not the type of person to lead people astray and on top of this, you really cant argue with the maths,

I say sod it. If you like the whees, what is stopping you?

Dave T-S

Matt

I don't mind if you don't buy them, but you are being given inaccurate information.

Posting this here instead of emailing you to save any further misleading info given on this thread (and not having a pop at you polarbearit, just want to ensure the facts are recorded).

The standard 205/50x16 tyre fitted to MY00 and backwards is 612mm rolling diameter.

The 215/45x17 fitted to MY01 is 626mm rolling diameter - a difference of 14mm or 2.24%. New/worn tyres of the same size on the same car can give the same difference. It is negligible.

The difference between a new tyre and a worn one (depending on make and how much tread depth it started with, they all differ) can be up to 14mm. A worn 215/45x17 is almost exactly the same diameter as a new 205/50x16.

To be totally accurate, neither the 205/45x17 (616mm dia) or 215/40x17 (604mm dia) as a popular replacement for the 205/50x16 are the exact same diameter as the OEM tyre either - one being undersized and the other being oversized.....but there are enough cars running round on them!

As I said, not trying to force you to buy them, just nipping inaccurate information in the bud.



[This message has been edited by Dave T-S (edited 02 October 2001).]

Dave T-S

Oh, and they shouldn't rub the arches either as the wheel offset is within the correct tolerances....

Dave T-S

And one further thought, Subaru and Prodrive saw fit to put 225/40x18 Pzero rossos on the UK300 which at 637mm rolling diameter are 11mm more than the MY01 OEM 215/45x17, so clearly they do not think 11mm difference is a problem....

polarbearit

Mr T-S

Thanks for the correction, but the reason I had posted it was that I was told by a MY99 owner that when fitting 215/45/17's on 17's they did rub! I understand that the rolling radius IS only very slightly different but perhaps the combination of this and the extra width of tyres (compared to OE 205's, remember, that you have to be carefull to get the correct offset with 215/40's or they can rub) that caused something to rub on his arches. The MY01 is a different situation as there is plenty more space!

I'd like to hear from anyone with 215/45/17's on a pre 2001 car that don't rub.

Jon

Edited to add the car was standard shocks with eibach springs, and that MY99 suspension is different to MY97. I understand and that the rubbing only happened when 4 up in the car. Not trying to stop a sale, and I believe that RE011's are good tyres too.

[This message has been edited by polarbearit (edited 02 October 2001).]

Dave T-S

Jon
Glad you realise I am not looking for a fight

It would be nice to have a definitive answer on this, certainly the rubbing issue.

I can only speak as I have found.

I ran my MY00 on 215/40x17's for 9 months, it never rubbed once (standard suspension), including returning from a Switzerland ski trip with two pairs of skis, two giant holdalls, three pairs of skiboots, two rucksacks, my toolkit plus from Tesco Calais to back home I also managed to squeeze 144 bottles of wine in the car - not a squeak from the tyres.....

Dave T-S

Hmmmmm.....

(Edited after some further thought).

Adam/Matt
It's a 19mm increase in diameter, not circumference...so will be (x 3.1714) a 60.25mm difference in circumference, surely?

Matt
The penny had dropped - you have 15" wheels on - for some strange reason I thought the MY97 was on 16's which is why this is the only reference I have made......a quick to the SIDC FAQ shows I am wrong

The additional fact now is that Subaru went up 5mm increase in diameter in tyres from 97 to 98.

As Adam kindly says, I am scrupulous about not leading anyone astray deliberately on here.

According to the SIDC FAQ the final drive ratio did not change from 93-99.

We are then talking about a 19mm increase in diameter as you say. This is 3.13% and would probably not, again, make any real noticeable difference - but is probably getting close to the limit.

We really need someone that has actually done it - I could do with speaking to me old mate Mr Croney but he ain't around

Matt, NOT trying to force you in any way however...ultimately it has to be your decision.



[This message has been edited by Dave T-S (edited 02 October 2001).]

ScoobyJawa

Dyney (Iain) put them on his MY97 but had to change the MY01 oem tyres, as he's done it, why not give him a shout and ask for his advice/experience.

mailto:IAIND@dyney.fsnet.co.uk

Neanderthal

iTrader: (6)

Dave,

I think sadly that you are right

I'm not sure what suspension differences there are between the MY97 and MY98 as it was the 97 model that had the facelift but it was in 98 that they added the new dash and 16" wheels.

Thanks for your patience on this. Sorry it hasn't resulted in a sale though

Jawa, I would imagine Iain changed the tyres to get back to the correct circumference. Sadly I don't have the money to get the wheels and change the tyres. I'm just going to have to wait till I'm richer or another bargin that will fit my car comes up.

Matt

Adam M

my mistake,

diameter indeed.

doesnt change much though except now we are talking 9mm or so extra intrusion into the arches.

Deopending on ho much tread is left, I am not sure how close it can be on the nromal arched cars.

To my knowledge, they were no chassis changes between 97 and 98. It was purely cosmetic and some tiny engine changes.

The bigger wheels were simply what they suggest. Bigger wheels. there relative circumferences would have been in tolerance. It would have been done for the purposes of looks alone!

Dave T-S

Jon
Bearing in mind my last post, you may of course also have a point regarding the *possible* rubbing with a 215/45x17 as there is 19mm increase in diameter not 14mm.

But, who knows, what we need is facts!

YOUNG GED

Hi Guys

Just to help.Sorry I've been so slow to reply to this but i missed it.

I have these wheels and tyres on my MY95 car on std suspension.

Just to clear things up.

1 They will throw your speedo out but like daves states it's hardly worth worrying about.
2 They have not rubbed at all on my arch's and thats with the car 3 up and a set of 16" wheels and tyres in the boot.

Hope this helps.

Chris

P.S. Feel free to mail me if you want ant more info.

Dave T-S

AHA.....some facts - exactly what we need - cheers Ged

johnwiz

iTrader: (26)

Chaps,
just to throw my tuppence-worth in,
I had 17inch OZ Super T's with 215/45/17 Marshall tyres on my UK 97.
Everything was fine until I got some mates in the back --severe rubbing.
I know it's a different wheel/tyre combination but...
I was warned by a Swedish member(Secret Agent Man??) that even with 215/40/17 tyres
I may have to remove the rear wheel arch protectors to avoid rubbing when 4 up.
Cheers,John

polarbearit

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:<HR>Originally posted by johnwiz:
<B>Chaps,
just to throw my tuppence-worth in,
I had 17inch OZ Super T's with 215/45/17 Marshall tyres on my UK 97.
Everything was fine until I got some mates in the back --severe rubbing.
I know it's a different wheel/tyre combination but...
I was warned by a Swedish member(Secret Agent Man??) that even with 215/40/17 tyres
I may have to remove the rear wheel arch protectors to avoid rubbing when 4 up.
Cheers,John

[/quote]

Ah ha, I was not wrong, beginning to think I wrong tyre size confusion of something!

The 215/40/17's have been fine on my car (I believe with the wrong offset they would rub) but as said earlier I knew of a friend, who did suffer rubbing with 215/45's, that is fact.

Anyway Mr TS good luck selling the tyres/car (BTW looks very nice).

Maybe the offset of the MY01 wheels is different to OZ (etc) wheels, and so maybe it doesn't rub...

Jon