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Thavash
Guest
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 Posted:
Thu Nov 25, 2004 1:33 pm Post subject:
Alloy wheels on Corolla |
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Hi
I have a question regarding tire / wheel sizes. I have to replace the tires
on my 2003 Corolla , and I was wondering if I shouldn't take the opportunity
to move up to 17 inch tires / wheels. The car currently has 195/60 15 inch
tires - If I put on a set of 205/40 17 inch wheels , how badly would the
ride deteriorate ? I would expect the handling to improve but I don't want a
ride that's too firm.
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HachiRoku
Guest
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| Posted:
Thu Nov 25, 2004 5:45 pm Post subject:
Re: Alloy wheels on Corolla |
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On Thu, 25 Nov 2004 10:33:04 +0200, Thavash wrote:
| Quote: | Hi
I have a question regarding tire / wheel sizes. I have to replace the tires
on my 2003 Corolla , and I was wondering if I shouldn't take the opportunity
to move up to 17 inch tires / wheels. The car currently has 195/60 15 inch
tires - If I put on a set of 205/40 17 inch wheels , how badly would the
ride deteriorate ? I would expect the handling to improve but I don't want a
ride that's too firm.
|
See my response to John (GTS tire rattling/banging) for a discussion about
tire sizes.
In short, you CAN do it, but you will mees up the geometry. To do it
RIGHT, you will need to change some suspension components, at the very
least the shocks and springs. You're trying to go just a little TOO far.
Also, see the tire calculator I posted, or try the one at 1010tires.com.
If you go over too much, a warning box will pop up.
Best thing to do is to go up to a 16" but keep the same overall diameter
by selecting a lower profile tire.
Doing this, the ride will get harsher; the shorter (and, hence, stiffer
the sidewall) the more 'road feel' and harshness you will feel. Think
carefully before you do this, you're looking at spending some $$$$$ |
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Daniel M. Dreifus
Guest
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| Posted:
Thu Nov 25, 2004 5:45 pm Post subject:
Re: Alloy wheels on Corolla |
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"Thavash" <thavash_g@hotmail.com> wrote in message news:<co45fs$fcv$1@news.mch.sbs.de>...
| Quote: | Hi
I have a question regarding tire / wheel sizes. I have to replace the tires
on my 2003 Corolla , and I was wondering if I shouldn't take the opportunity
to move up to 17 inch tires / wheels. The car currently has 195/60 15 inch
tires - If I put on a set of 205/40 17 inch wheels , how badly would the
ride deteriorate ? I would expect the handling to improve but I don't want a
ride that's too firm.
|
Just looking at the numbers, going from 60 to 40 represents a 33%
change - one third. Would guess that would make the ride 1/3 harder.
Probably will reduce tracking stability also. Bear in mind, the strut
damping rate is designed for stock wheel size also.
Personally, I'd stay with stock sizes for the Toyota - allow the
extensive engineering work behind the suspension to function as
designed, and seek to improve ride or handling characteristics by
altering tire selection within the stock tire and wheel sizes. By
selecting different designs of tires, you can make a large difference
right there, depending on which factors they're manufactured to
emphasize. With the cost of 17" wheels, you'd have the budget to get
the best tires available.
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Ray O
Guest
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| Posted:
Fri Nov 26, 2004 5:45 am Post subject:
Re: Alloy wheels on Corolla |
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"Daniel M. Dreifus" <nospampls2002@yahoo.com> wrote in message
news:c5ef7dc0.0411250813.795320fd@posting.google.com...
| Quote: | "Thavash" <thavash_g@hotmail.com> wrote in message
news:<co45fs$fcv$1@news.mch.sbs.de>...
Hi
I have a question regarding tire / wheel sizes. I have to replace the
tires
on my 2003 Corolla , and I was wondering if I shouldn't take the
opportunity
to move up to 17 inch tires / wheels. The car currently has 195/60 15
inch
tires - If I put on a set of 205/40 17 inch wheels , how badly would the
ride deteriorate ? I would expect the handling to improve but I don't
want a
ride that's too firm.
Just looking at the numbers, going from 60 to 40 represents a 33%
change - one third. Would guess that would make the ride 1/3 harder.
Probably will reduce tracking stability also.
|
Tracking stability is determined by caster, not wheel and tire diameter.
Bear in mind, the strut
| Quote: | damping rate is designed for stock wheel size also.
|
Struts control the rate at which the springs rebound after the springs
absorb a bump. The term "shock absorber" when applied to shocks and struts
is a misnomer. Shocks are actually absorbed by the springs.
| Quote: | Personally, I'd stay with stock sizes for the Toyota - allow the
extensive engineering work behind the suspension to function as
designed, and seek to improve ride or handling characteristics by
altering tire selection within the stock tire and wheel sizes. By
selecting different designs of tires, you can make a large difference
right there, depending on which factors they're manufactured to
emphasize.
|
Good point!
With the cost of 17" wheels, you'd have the budget to get
| Quote: | the best tires available.
|
A shortcoming of performance tires that people often overlook is that they
often have relatively short tread life as the tradeoff for more traction.
Some performance tires have a tread life of around 20,000 miles, or about
half of an average tire. Keeping the car in performance sneakers can get
expensive. While a stock Corolla has adequate performance and handling for
most people, that performance and handling are probably not enough to take
advantage of the additional traction offered by performance tires.
--
Ray O
correct the return address punctuation to reply |
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Philip
Guest
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| Posted:
Fri Nov 26, 2004 5:46 am Post subject:
Re: Alloy wheels on Corolla |
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Ray O wrote:
| Quote: | "Daniel M. Dreifus" <nospampls2002@yahoo.com> wrote in message
news:c5ef7dc0.0411250813.795320fd@posting.google.com...
"Thavash" <thavash_g@hotmail.com> wrote in message
news:<co45fs$fcv$1@news.mch.sbs.de>...
Hi
I have a question regarding tire / wheel sizes. I have to replace
the tires
on my 2003 Corolla , and I was wondering if I shouldn't take the
opportunity
to move up to 17 inch tires / wheels. The car currently has
195/60 15 inch
tires - If I put on a set of 205/40 17 inch wheels , how badly
would the ride deteriorate ? I would expect the handling to
improve but I don't want a
ride that's too firm.
Just looking at the numbers, going from 60 to 40 represents a 33%
change - one third. Would guess that would make the ride 1/3
harder. Probably will reduce tracking stability also.
Tracking stability is determined by caster, not wheel and tire
diameter.
|
I would add "toe" (thrust angle) also affects "stability."
| Quote: |
Bear in mind, the strut
damping rate is designed for stock wheel size also.
Struts control the rate at which the springs rebound after the
springs absorb a bump. The term "shock absorber" when applied to
shocks and struts is a misnomer. Shocks are actually absorbed by
the springs.
|
A "shock absorber" controls spring rate. Rebound dampening controls spring
extention while compression dampening controls spring compression. |
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Thavash
Guest
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| Posted:
Fri Nov 26, 2004 3:20 pm Post subject:
Re: Alloy wheels on Corolla |
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Thanks guy s- I think I'll just replace the tires with new ones of the same
size - should be cheaper too. |
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