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Stretched tyres
Posted: Tue Nov 03, 2009 5:45 pm
by evoman
Ahh man, I’m hating the lack of info on the FTO.
I have some Team Dynamics ProRace 18x8 +35 wheels sitting in my lounge room waiting for me to sort things out with, but I just can’t find all the info I need so I’m seriously considering giving up as I don’t have the money to trial and error.
I’d really like to lower it 49mm(front) 45mm(rear) on some Tein S-Tech’s as they seem to provide the flat look on 18’s that I am after, whilst still hopefully offering reasonable performance. However after spending all this money I don’t want to end up with a setup that scrubs like a bitch nor one that is stupidly impractical.
I THINK that this setup MIGHT work with some 215/35/18 tyres but now I am worried that this might adversely affect handling due to the stretching of the tyres.I would prefer to run 225/35 but I can't tell if this will work.
Is a 215/35 on 18x8 stretched much or is it still in a safe range? I’m hoping to get some SS595 federal tyres and they list 7-8â€
Posted: Tue Nov 03, 2009 6:25 pm
by Valandis91
did u get the same rims as me?
Posted: Tue Nov 03, 2009 6:38 pm
by evoman
Yep, your pics turned me on.
I'd still like to know what your car looks like on the king springs if you happen to have a photo on you.
Posted: Tue Nov 03, 2009 6:42 pm
by vipfto
your ok with 215 at a min but i would go the 225
I have another set of rims 18x8 which i havent fitted yet but will run 225/35 on them lowered on kings but can get away with 215 if really have too
Posted: Tue Nov 03, 2009 7:08 pm
by J
stretched tyres are all for looks. my mates all roll on stretch's... only so they can get wider rims/more dish.
pros- preventing scrubbing with spring movement. look sick yo LOL
cons - loss of traction, easy to curb your wheels. many places dont stretch tyres onto wheels as its unsafe, so finding a place will be hard (pm me if your in sydney).
Posted: Tue Nov 03, 2009 7:11 pm
by aza013
Go with the 225s
Posted: Tue Nov 03, 2009 8:56 pm
by Astron_Boy
J wrote:stretched tyres are all for looks. my mates all roll on stretch's... only so they can get wider rims/more dish.
mmmmm, not entirely, I went with stretched on my wagon, only by 10mm, simply to have less flex in the tyre wall for better cornering, loss of traction is negligable difference unless really pushing it from personal experience.
J wrote:cons -many places dont stretch tyres onto wheels as its unsafe, so finding a place will be hard (pm me if your in sydney).
ROFL
Posted: Tue Nov 03, 2009 10:56 pm
by J
^^^ its illegal for shops to stretch a tyre that isn't recomended for a specific width of rim. bob jane said no
hopefully ''the shop'' wont have trouble putting a 215 on a 9'.
what rim width and tyre size were u running out of curiosity?
Posted: Tue Nov 03, 2009 10:59 pm
by Astron_Boy
nah, I know it's illegal, was funny how you had 'pm me' at the end, meaning you knew a guy
Honestly, I cant remember my tyres.
Think they're 205x45 on 17x7.... i think.
the sedan with 17x6.5 takes 215 and fits flush on with a 45 profile.
Posted: Tue Nov 03, 2009 11:48 pm
by Valandis91
evoman wrote:Yep, your pics turned me on.
I'd still like to know what your car looks like on the king springs if you happen to have a photo on you.
oh really
thought i was going to be the only one with them!
nah i dont sorry mate as my car is still at the mechanics and hasnt moved for the past 4 months!
where did you get them from?
how much?
Re: Stretched tyres
Posted: Fri May 10, 2013 2:27 am
by bjk
To prove that us Gen-Yers can use the search function, and also field more wheel and tyre related questions without starting a new thread!
Is any amount of stretch on tyres bad? I know there are some ridiculous extremes, but would something like this be okay?
http://www.willtheyfit.com/index.php?wi ... mit=Submit
Re: Stretched tyres
Posted: Fri May 10, 2013 2:36 am
by Vectose
A little bit of stretch isn't an issue. 245/40 on a 9" wheel is fine. But you will need to roll the guards.
Re: Stretched tyres
Posted: Fri May 10, 2013 2:45 am
by bjk
Vectose wrote:A little bit of stretch isn't an issue. 245/40 on a 9" wheel is fine. But you will need to roll the guards.
I'm slightly worried about the inside of the fender closest to the door, which appears to be made of much more solid stuff than the guard liners haha. e.g. when turning a full lock left (or right), the "rear" part of the tyre hitting inside the fender.
I keep wondering whether it's worth the trouble, but I'd love a
little bit of concave. Except most wheel designs are 9-9.5 inch wide when they start to do that.
Re: Stretched tyres
Posted: Fri May 10, 2013 2:50 am
by Vectose
Yup, that part at the back is where mine scrub on full lock. They also scrub on the top part of the guard on hard cornering and have ripped through the liner.
Mine are 17x8 with a +32 offset.
Re: Stretched tyres
Posted: Fri May 10, 2013 2:56 am
by bjk
Vectose wrote:Yup, that part at the back is where mine scrub on full lock. They also scrub on the top part of the guard on hard cornering and have ripped through the liner.
Mine are 17x8 with a +32 offset.
dayum, that's not very encouraging.

What tyre size are you running? My liner on the left side is kinda toast, iirc it was on 18s before I got it from Dwayne which would explain that.
I suppose I would get similar issues on the inner side of the wheel if I raised the offset to stop the rubbing on the curb side... hmm.
Re: Stretched tyres
Posted: Fri May 10, 2013 2:57 am
by Vectose
I'm on 215/45 and am planning on going to 235/40
EDIT: Also should mention my car is lowered.
Re: Stretched tyres
Posted: Fri May 10, 2013 3:02 am
by bjk
I think I might have to ask silverGPX if he's had any trouble on the inside of the fender near the strut. If I used the 28 offset that the wheel comes with, then I'll only be poking a few mm more than Bennoz, and only inset a few more mm than silverGPX...
Re: Stretched tyres
Posted: Fri May 10, 2013 7:25 am
by fraz91
IIRC, silverGPX has needed castor bushes installed to help push the wheel forward and further away from the rear of the wheel arch.
Unfortunately wheel and tyre combos are one of those "suck it and see" problems, and can't all be fixed by asking questions. I.e. my tyres scrub on my swaybar at full lock full droop, but others with the same size tyre on wheels with -3mm more offset clear perfectly.
Re: Stretched tyres
Posted: Fri May 10, 2013 12:53 pm
by bjk
fraz91 wrote:IIRC, silverGPX has needed castor bushes installed to help push the wheel forward and further away from the rear of the wheel arch.
Unfortunately wheel and tyre combos are one of those "suck it and see" problems, and can't all be fixed by asking questions. I.e. my tyres scrub on my swaybar at full lock full droop, but others with the same size tyre on wheels with -3mm more offset clear perfectly.
It's very frustrating, haha. But I guess that's what happens when you stray from manufacturers sizes by such significant margins.
Re: Stretched tyres
Posted: Fri May 10, 2013 1:31 pm
by vipfto
ok I get rub inner gaurd on front no liners with coilovers on 225/40R18 on 18x8 +35 rims only on full lock. Torun a rim that wide offset should be ok but will need to roll gaurds and may stick out not too mention there is such a thing as over tiring a car. 245 is just way to big and rolling diamtere is way off so speedo will be off and car will be slower of mark and harder to brake. I only run 225/40 for traction as its needed and same reason run semi slicks as will be the case for bennoz. For a standard FTO does not need a 245 or 235