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Discussion Starter · #1 ·
Our tires are 225/40R18s but one of the options on 1010tires is you can run 245/35R19 which they classify as extreme fit. Will this be a problem with rubbing if you drop the car? I tried searching for some pictures on the difference in comparison between the stock width and jumping 20cm or is it mm? It looks nice but considering it's FWD, would it be wasted money? Confirmation Bias says that they handle better sort of like people who have stickers on their cars that say it makes their cars faster, lol.


Seriously, should 245 pose a problem?
 

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When you plus one , you remove side wall and add it to the tread . The contact patch increases but the fitment does not . As long as the wheels offset is in spec you should be fine
 

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I generally go 10 mm wider than stock when I get new tires. Not sure what the clearance is on our cars but I would guess they would fit. And it is mm not cm.

And they really will handle better. 225 to 245 is almost a 10% increase in tire width. If your tires spin then they will help with acceleration too. Tires are the most underrated performance modification by a huge margin.
 

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Discussion Starter · #4 ·
When you plus one , you remove side wall and add it to the tread . The contact patch increases but the fitment does not . As long as the wheels offset is in spec you should be fine


Is that necessarily true in all cases because I've seen 225/40R19s even or am I missing your statement entirely? I'm pretty sure you can +1 or even +1 and still maintain the same tread width and sidewall. The reason I'm even mildly interested in going +1 is for looks; all the new hot hatches are coming with 19" or bigger and I really like the fill it has visually speaking. I understand the weight and unsprung mass increase will dampen the performance and MPG, among other things. I found the harsh ride of stock 18" a little unnerving when I first picked up the car since I had always driven appliances with 14" rubbers but I adapted and like it.

Am I missing anything glaring about going bigger that I'm not even aware of? These are strictly a summer setup so I don't mind going with something a little more splashy.
 

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Discussion Starter · #5 ·
I generally go 10 mm wider than stock when I get new tires. Not sure what the clearance is on our cars but I would guess they would fit. And it is mm not cm.

And they really will handle better. 225 to 245 is almost a 10% increase in tire width. If your tires spin then they will help with acceleration too. Tires are the most underrated performance modification by a huge margin.
In terms of better handling, if one so chooses to pursue that route, wouldn't another modification yield better results like suspension work? Truth be told, I could probably save a lot of money just going with AS rather Summer rated tires but I want to see what the differences are because as you said, tire performance is so underrated. I want to feel for myself how much better they are and the price difference is pretty minimal from 225 to 245. This is an instance where the old adage of going big or go home applies, lol. I'm almost certain I'll be getting a tune on this car at some point so the extra contact patch will definitely help.
 

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Is that necessarily true in all cases because I've seen 225/40R19s even or am I missing your statement entirely? I'm pretty sure you can +1 or even +1 and still maintain the same tread width and sidewall. The reason I'm even mildly interested in going +1 is for looks; all the new hot hatches are coming with 19" or bigger and I really like the fill it has visually speaking. I understand the weight and unsprung mass increase will dampen the performance and MPG, among other things. I found the harsh ride of stock 18" a little unnerving when I first picked up the car since I had always driven appliances with 14" rubbers but I adapted and like it.

Am I missing anything glaring about going bigger that I'm not even aware of? These are strictly a summer setup so I don't mind going with something a little more splashy.
True , it all depends on the tire in the end . I've found some tires to be wider than specified . VW forums have tire guides to which are what . Personally there are little Benifits perfomace wise going to a bigger wheel , unless you can do something about the weight of the new wheel . And that will cost you a lot . I feel I'd stay stock just because the stealth and if I did swap it would be for a lighter wheel same diameter and wider . Not sure how far I can take it yet with the current size until the suspension is completed
 

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It could. But not necessarily. In reality what defines your cars maximum cornering speed is the grip of your tires.
But what makes you feel more level and probably comfortable is your suspension mods.
Of course those mods should increase your maximum cornering speed by asking your most over worked tires to do less and your slacking tires to do more.

And it also depends on what the stock weak points are. There may be a few easy fixes (i.e. collars) that make a huge difference.

But if you were going to track your car and you said you needed to shave X amount of time off your lap but only had money for 1 modification my number 1 answer would almost always be upgrade your stock tires.
 

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I'll be tracking mine lol . A lot of testing though primarily with brakes and trans shift I the auto shift practice. Forte5 runs his auto in the canyons almost daily
 

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Well then you very well may push the limits of your tires. Us normal folk are lucky to get out of rush hour traffic and take a few spirited bends before pulling into the driveway.

BTW 2014Forte5, wider tires will give you worse mileage and not perform as well in the snow
 

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Discussion Starter · #11 ·
Well then you very well may push the limits of your tires. Us normal folk are lucky to get out of rush hour traffic and take a few spirited bends before pulling into the driveway.

BTW 2014Forte5, wider tires will give you worse mileage and not perform as well in the snow
Well, thank god I'm not even contemplating running summer tires in the winter ;)

As I've said, this is a cosmetic upgrade. I'm really into aesthetics rather than power but I wouldn't refuse it if it's offered.

As far as tracking the car, it's my intention to take it to the road course up in Cayuga, Ontario before long.


I know people who are serious about tracking their cars it's a cardinal sin to have anything bigger than 16" or 17" wheels. I most certainly won't be making this a track/daily car though but I do want to have fun occasionally be it on a road course or some back roads.

Wheels/Tires combo is $3000 CND. I could probably do some serious power mods with that kind of money, no? may be later down the road.
 

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Then do it. Do what makes you happy.
If I had $3000 spending money I would be buying a miata, porches 944, or some gm coupe with a big v8 but to each his own.

And yes, 3k could get you a lot of power mods. A stuffed turbo and full bolt on with a tune probably.
 

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Full bolt ons and a tune for $3000 CAN? Not going to happen even in US$$... $4000.00 ($5550.00 CAN) may get you slightly close but wouldn't include mid pipe, axle back, meth, engine internals or suspension upgrades.
 

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Well I wouldn't count internals, a tune, meth, or suspension mods as bolt ons. I guess that term has changed over time.
It used to mean modification that bolted to the engine to add power. Primarily intake and exhaust paths and pulleys.

I mainly ignored that is was CA but even at $2150 USA you could get Torks stuffed turbo, their power bundle, and a home made hot pipe. Save up another $300 and get an exhaust fabbed up.
Thats pretty close to full bolt on plus a turbo upgrade and tune.

Regardless, $3000 CA could purchase a lot more power which is what I think his question was.
 
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