The Wheel Suggestion Thread

Adamal · Post by **Adamal** » Wed Dec 23, 2009 2:08 pm

Shush. They were cheap

And I'll be painting it black, maybe with a dark blue pearl through it. The wheels will probably be a very glossy black. Haven't decided yet.

Al · Post by Al » Wed Dec 23, 2009 5:00 pm

I had RPF1's they were pimp.

I was too much of a blouse to get decent widths at the time though.

kim0663 · Post by **kim0663** » Sat Jan 09, 2010 5:19 am

If you're wanting the fat rim look, i'd get some spacers on your blitz rears, then put 215s or 225s on em to stretch them to clear the guards and dial in some camber. would look PHAT Az!

I assure you that any crap wheels you buy will be a hell of a lot crappier than the current ones you have. you get what you pay for.
$3000 rrp rims vs $1000 rrp rims? What the hell are you trying to achieve by downgrading? Paint them black. Powder coat then black. What's holding you back?...

i had 215 gsd3s all around a few years ago. Doesn't handle that bad as they make you believe...

fatter tyres doesn't mean you have more traction. Period.

Adamal · Post by **Adamal** » Sat Jan 09, 2010 8:52 am

kim0663 wrote:fatter tyres doesn't mean you have more traction. Period.

You're saying that because a car doesn't have the extra weight required to make use of the extra available width from fatter tyres that it won't be able to make use of it?

Nonsense!

MR2BOY23 · Post by **MR2BOY23** » Sat Jan 09, 2010 5:23 pm

I don't have blitz wheels.. they're enkei rs

FLAWLES · Post by **FLAWLES** » Sat Jan 09, 2010 8:54 pm

kim0663 wrote:
fatter tyres doesn't mean you have more traction. Period.

im sorry what?
that basicly goes against every handling book i have ever read

may as well thro this rather expenive handling book away anyone want it? :roll:

would love to here your reasoning behind this

Adamal · Post by **Adamal** » Sat Jan 09, 2010 9:53 pm

I believe it comes down to pressure, contact patch and weight.

If you go wider, but the same pressure, and the same weight, then the side to side width of the tyre contact patch increases, but the front to back part of the contact patch decreases.
Lowering the pressure could help, but obviously theres going to be a limit to how wide you can go and how low your pressures can be before the low pressure has a negative impact on the handling.

Thats why proper race cars have spoilers (proper ones) to create downforce. More 'weight' due to the downforce gives and increased contact patch to give more traction.

EDIT: Flawless, I'll have the book if you don't want it?

Sounds like a good read!

Bling · Post by **Bling** » Sat Jan 09, 2010 10:07 pm

Just picture a wet day driving down the road in your KP starlet with 225 tyres all around. Can you imagine how much aqua planing you'd end up doing :lol:

Though that only applies to the wet, I think Adamal has explained the main reason / dry situation.

/who knows

d1 mule · Post by **d1 mule** » Sat Jan 09, 2010 10:34 pm

what about WRC carsusing like 185s in the snow............

comes down to the stiletto principal, same weight on a smaller surface area = more pressure on the actual part of the tire that contacts the road, thus more grip, well in snow a least.

kim0663 · Post by **kim0663** » Sat Jan 09, 2010 11:24 pm

Enkei RS then.

It's physics...

The car's static weight isn't going to change. I emphasise, 'static'.

Dynamic will be different with weight transitions etc.

Adamal has explained it spot on.

The only benefit fatter tyres have is, less tyre fade. Thinner (front to back) contact patch = less time the rubber touches the road = more time cooling down.

Being a dynamic situation, having fatter tyres may give 'some' advantages but does not correlate to the width of the tyre in the first place.

Pick your tyre sizes according to the rim width you have available. Reduce sidewall 'deformosity' :lol:

to gain handling performance or should i say, 'feel', 'responsiveness'.

Increasing stand still traction by fat tyres and under inflation is the same principle. If you don't underinflate them, they will not give any frictional benefits (given the frictional coefficients are the same)

nobody · Post by **nobody** » Sat Jan 09, 2010 11:46 pm

FLAWLES wrote:
kim0663 wrote:
fatter tyres doesn't mean you have more traction. Period.

im sorry what?
that basicly goes against every handling book i have ever read

may as well thro this rather expenive handling book away anyone want it?

would love to here your reasoning behind this

This was covered a couple of years back - it's in the technical frequently asked questions section: http://forums.toyspeed.org.nz/viewtopic.php?t=39835