Upsizing wheels?

[philmydang]

Hi guys i've bought myself a 99 integra gsi, and atm is sitting on measly 14inch alloys. they look like lego wheels.

Anyway, my question/s are, if i was to upsize, to say 16's or 17's;

- would it be legal?
- How does the increase in wheelsize effect my speedo/odo?
- Does this affect my insurance?
- Is there anything else i need to know?

from what i've gathered on the site, i need a 4x100 pattern, with +42 offset?, width? could someone please enlighten me

[nvdvtc]

hey, if u would want 2 upsize the wheel....
- i say to get 16inch best in drag races and track.
- no it doesnt effect ur insurance .
- it does effect ur speedo but just go do wheel aligment.
- and it is legal because its only 2 size up u cant go any higher than 2size.

[trism]

it will only affect the speedo if the overall diameter is different.

so you might have 14" wheels, and a total diameter or wheel and tyre of 18"

if you get 17s, as long as you get a suitable tyre to keep it at around 18-19" total diam, youll be sweet

as long as you tell the insurance company, then its ok

edit:

you can go 2" larger than the biggest sized option for that car.

so if a model of 99 teg came from teh factory with 17s, or had the option of 17s, then you would be able to fit up to 19s

[DC5.Raven]

Hi guys i've bought myself a 99 integra gsi, and atm is sitting on measly 14inch alloys. they look like lego wheels.

Anyway, my question/s are, if i was to upsize, to say 16's or 17's;

- would it be legal?
- How does the increase in wheelsize effect my speedo/odo?
- Does this affect my insurance?
- Is there anything else i need to know?

from what i've gathered on the site, i need a 4x100 pattern, with +42 offset?, width? could someone please enlighten me

First of all, yes it will affect insurance, depending on the policy you have etc etc. Most companies will count that as a modification especially if width of rims are larger (say from 17 x7 to 17 x 8), and most companies dont allow too many mods and might not insure you if ur under 25 (unless its with just car).

I think they are legal if the overall diameter (ie diameter of rim and tyre) of new rims setup isnt 10% larger or smaller than "stock". Im not too sure on this 10% figure tho.

A different wheel diameter to stock will screwup ur speedo readings depending if your new setup is smaller or larger than stock. If ur overall diameter is larger than stock that ur speedo will show a speed thats actually slower than what you are doing (ie ur going faster). And the opposite for overall diameter thats smaller than stock, speedo will show u going faster than u actually are - ur going slower than wat speedo says (i think thats right).

The last thing u need to know is that increasing rim size pretty much means rougher ride. So you dont really want to go any larger than 16" for practical reasons.

[Jump]

http://www.miata.net/garage/tirecalc.html

use it as a guide to calculate what size wheels+tyres you need as changing the overall rolling diameter will affect your speedo

[philmydang]

thanks for all the replies guys. Another question; is it possible to get my speedo recalibrated for the new sized wheels? it'd be a bummer to get a $300 speeding ticket after forking out a small fortune for some nice wheels.

[Bludger]

hey, if u would want 2 upsize the wheel....
- i say to get 16inch best in drag races and track. BULLSHIT
- no it doesnt effect ur insurance . BULLSHIT
- it does effect ur speedo but just go do wheel aligment. WTF???
- and it is legal because its only 2 size up u cant go any higher than 2size.-16" is not the best for drag & track
-Have you read through his policy details? how do you know it doesn't effect his insurance?
-you're right about the speedo, but what does an alignment have to do with changing wheels? you need an alignment after sussy mods, not after a wheel change



- would it be legal?
- How does the increase in wheelsize effect my speedo/odo?
- Does this affect my insurance?
- Is there anything else i need to know?

[DC5.Raven]

thanks for all the replies guys. Another question; is it possible to get my speedo recalibrated for the new sized wheels? it'd be a bummer to get a $300 speeding ticket after forking out a small fortune for some nice wheels.

just get new set with same overall diameter as stock.... :thumbsup:

[Jump]

thanks for all the replies guys. Another question; is it possible to get my speedo recalibrated for the new sized wheels? it'd be a bummer to get a $300 speeding ticket after forking out a small fortune for some nice wheels.

there was a how-to-guide in one of the issues of asm last year and they used a kit that can be bought from jaycar. Basically you put the kit together and use it as a speedo corrector, cost them $45. hope this helps ya

[krogoth]

hey, if u would want 2 upsize the wheel....
- i say to get 16inch best in drag races and track.
- no it doesnt effect ur insurance .
- it does effect ur speedo but just go do wheel aligment.
- and it is legal because its only 2 size up u cant go any higher than 2size.

epic lulz

above response is allll rongggg


-16" is not the best for drag & track
-Have you read through his policy details? how do you know it doesn't effect his insurance?
-you're right about the speedo, but what does an alignment have to do with changing wheels? you need an alignment after sussy mods, not after a wheel change

bludger, mr sexc, is talkin much sense

i just have a few things to add

its not always the case that ur speedo will be innacurate after an increase in wheel size because if ur smart u increase ur wheel diameter but decrease ur tyre aspect ratio in order to keep the rolling diameter the same, this way u will keep ur speedo accurate

only time ur speedo will be affected is if ur overall rolling diameter is larger than stock, then u need a speedo recalibration, not an alignment

alignment is for sussy mods, most commonly done after lowering

and as i said b4, u can go to 18inch wheels on a car that has 14inch stock, as long as u get a tyre with a tiny aspect ratio, meaning it will be more expensive

and even with the smallest aspect ratio, its still legal if u increase ur rolling diameter by anything under 10% if i recall corectly

and to say 16" is best for track and drag is a HUGE statement, u cannot generalise like that, every situation is different

and it may or may not affect insurance, as bludger said

[Jump]

everything that krogoth sounds right except that the speedo will still be affected if the overall rolling diameter is smaller.

e.g. if the overall roling diameter is smaller than the stock rolling diamater, then when your speedo reads 60km/h you will be doing less than that i.e 58km/h

and its the opposite if your overall rolling diameter is larger than you would be actually driving about 62km/h rather than 60

[krogoth]

yeh, thats wat i said, lol

[Bludger]

epic lulz

above response is allll rongggg



bludger, mr sexc, is talkin much sense

i just have a few things to add

its not always the case that ur speedo will be innacurate after an increase in wheel size because if ur smart u increase ur wheel diameter but decrease ur tyre aspect ratio in order to keep the rolling diameter the same, this way u will keep ur speedo accurate

only time ur speedo will be affected is if ur overall rolling diameter is larger than stock, then u need a speedo recalibration, not an alignment

alignment is for sussy mods, most commonly done after lowering

and as i said b4, u can go to 18inch wheels on a car that has 14inch stock, as long as u get a tyre with a tiny aspect ratio, meaning it will be more expensive

and even with the smallest aspect ratio, its still legal if u increase ur rolling diameter by anything under 10% if i recall corectly

and to say 16" is best for track and drag is a HUGE statement, u cannot generalise like that, every situation is different

and it may or may not affect insurance, as bludger saidI gave him a negative rep for his/her misinformation and she decides to retaliate by giving me a bad trader rating

ROFLMAO

Thanks Benn for fixing things up

LOL

whatta loser

[philmydang]

so it seems the general consensus is to keep the overall diameter the same as what i've got. which means going for a smaller tyre profile?

i actually thought i'd improve the appearance by filling up all that space in the wheel arches with a bigger wheel + tyre. But since the speedo goes whack, does that mean i should drop the suspension instead? (my car already has trouble getting in and out of the driveway!)

[krogoth]

absolutley

do not change rolling diameter

dont sacrifice physics and common sense in the name of looks

besides bigger wheels need a low profile or they look silly

just lower the car, u gain handling, massive benefit ther

and it looks much better

sure its expensive, but u shoodnt do any half assed mods, u do much more harm than good