Tyre width affect FC

[Tweakmax2]

Will it be alot from 17/205/45 and 17/215/45

[Ladykillerz]

  On 8/14/2010 at 5:10 PM, Tweakmax2 said:

Will it be alot from 17/205/45 and 17/215/45

 

based on my experience, it will not be affected.

unless you up 17 to higher, 205 to 235, roughly like that.

 

from 205 to 215, your tyre lifespan will be longer, the grip will be slightly better and power wise i think will not be affecting much.

[Watwheels]

Just 10mm difference in width. You think the change in FC will be significant?

[SimonTan]

The rotation weight is more important affecting FC.

Anyway no need to worry much about FC. So what if you the FC does drop 0.5km/l after changing the bigger tyre?

Say before is 10.5km per l, after is 10km per l.

So every 300km you lose 15km. This 15km will cost you about $3 in extra petrol bill.

So u see, FC is over hype until many overly worries to change to better tyres!

 

Unless u say paying $3 extra every week in petrol is very siong.

 

[Kangadrool]

$3 buys one plate of duck rice in hawker centre. Anyway, wider tyres have greater tendency to aquaplane in the wet. Be very careful. Stick to stock size.

[Yattokame]

and hitting your fender during cornering/full rear load; especially if your car is lowered.

[Tweakmax2]

but wider tyre more stable rite

[SimonTan]

If you see the Continental tyres....the grooves are very very deep and wide, you can even put your little fingers into the slot! This wide channel will prevent aquaplane.

 

If you worry about aquaplane....just chose tyres with very wide longkangs.

 

[Good-Carbuyer]

  On 8/15/2010 at 3:10 AM, SimonTan said:

If you see the Continental tyres....the grooves are very very deep and wide, you can even put your little fingers into the slot! This wide channel will prevent aquaplane.

 

If you worry about aquaplane....just chose tyres with very wide longkangs.

 

Most of the time the roads are dry, so not that much usage for wet tire. When road wet drive slower speed will do

[Zyrofillica]

http://autospeed.com/cms/title_Tyres-Grip-...15/article.html clear up any misconceptions.

[Limiter]

What is your definition of stability? A lot of factors to look into terms of handling. Bigger tyre width alone does not help much if you are a hardcore driver.

[SimonTan]

interesting article.

 

 

[Boyboy]

  On 8/14/2010 at 5:10 PM, Tweakmax2 said:

Will it be alot from 17/205/45 and 17/215/45

 

why bother? I'm not familiar with sizes and prices for 17" tires, but just get whichever is cheaper. the overall diameter is pretty similar so not much difference.

 

the wider tire will have more tendency to hit your fender during hard cornering, if your clearance is too little. otherwise should be fine.

 

there will be difference in FC if u are changing to same model of tire. but it's maybe 2 or 3%, u won't notice it lah

[Roberttan]

  On 8/15/2010 at 12:06 AM, Kangadrool said:

$3 buys one plate of duck rice in hawker centre. Anyway, wider tyres have greater tendency to aquaplane in the wet. Be very careful. Stick to stock size.

your aquaplane thoery is right base on both narrow and wider tyre are exactly the same groove designed.

A good tyre has the good thread design that channel water rapidly or efficiently which overcome Aquaplane.

Tyre wide is not the only factor affecting the FC. others tyre ralated like

total wheel weight/tyre compound/rim and tyre setup/ most key factor is your FOOT.and tyre pressure.

s

 

[Boyboy]

  On 8/15/2010 at 4:56 AM, Limiter said:

What is your definition of stability? A lot of factors to look into terms of handling. Bigger tyre width alone does not help much if you are a hardcore driver.

 

coilovers go go go

 

model of tire also makes huge difference. a smaller sports tire may give better grip than wider comfort tire.. the compound makes a huge difference

[Vhtfhwlego]

wider tires, better handling = more speed into corners = lesser fuel to use to pick up to curising speed = less fuel used = more FC .

[Nothingtodo]

  On 8/14/2010 at 5:10 PM, Tweakmax2 said:

Will it be alot from 17/205/45 and 17/215/45

 

Yes, but not much... to the extend that you had a hole in your wallet. Go for it.

[Thedream]

  On 8/17/2010 at 8:34 AM, Vhtfhwlego said:

wider tires, better handling = more speed into corners = lesser fuel to use to pick up to curising speed = less fuel used = more FC .

 

I think it's a misconception that the wider the tyres, the lesser fuel to use to pick up.

 

This is covered in the link bro Zyrofillica posted above. So long as they are pumped to the optimal tyre pressure, the area of contact (contact patch) is the same.

 

The contact patch for a wider tyre is more left-to-right than front-to-back. So while it is better for cornering (sideways grip), it is actually worse in straight-line acceleration (less front-to-back grip).