What Max Size Rim & Tyre to Fit 92' Civic SI

[kenbo]

Hi everyone,

Can you please advise me what is the max. rim and trye size that can fit into a 92' Civic Si Sedan?

I've been looking to replace them with alloys (coz the wheel cover has peeled and looks shocking) and saw the below link in Ebay.

[/HTML] http://cgi.ebay.com.au/HONDA-RIMS_W0QQitemZ4592062385QQcategoryZ102337QQrdZ1QQc mdZViewItem

From the description, its a prelude rim (looks alloy?) and the tyre size is
205/55/R15 87V

Any thoughts and advise is greatly appreciated. :)

Kenbo

[BLKEM1]

Try get nice 16'in or 15'in if u want JDM look...........

Or just get some 20'in chromes....... :D

[Captiva_Blue]

The 92 Si came stock with a 185/50/R14 yeah? In that case you'll be able to go as wide as a 211mm tyre, not that they make one in that size.. (26mm larger than stock is the limit in Sydney so I assume its the same south of the border). As for diameter, you are allowed to have a roling diameter 15 mm greater than stock. Realistically, the biggest you can go is a 17 inch rim but you'll need to get 30 aspect tyres which are hideously expensive. A 16 is probably your best bet for looks, a 15 for function.

[kenbo]

Thanks for the replies so far.

Hi Captiva_Blue, I'm pretty certain that that the stock rims are 185/50/R14.

I'm just looking at a cheap alternative to change the stock steel rims to any honda alloys that may fit it. (its a second car i am now forced to drive as the missus drives the Accrod Euro) :(

The prelude rim (15") listed in Ebay looks like a good buy to replace the whole set of 4's. I'm not sure if the thread size is right for the Civic.

I've been trying to get specs in the web but couldnt find anything so far.


Regards

Ken

[egSi]

14" del sol wheels r a good choice as well.

[civiceg9]

I probably perfer 16inch for looks and 15inch for function.
Here have a go at this to see what you like
http://www.bobjane.com.au/Wheels/VirtualWheels.asp

[taiman]

if the tub size is the same as the si hatches...

then i know that u do not go the 205/50/16

they rub even on stock sus ove bumps...

205/45/16 is aight

[kenbo]

if the tub size is the same as the si hatches...

then i know that u do not go the 205/50/16

they rub even on stock sus ove bumps...

205/45/16 is aight

what if they were 205/50/15 like in the Prelude ?

what is the tub size ? Sorry my tech knowledge on rims is limited

[Captiva_Blue]

Tub size is the basically how much space is under the guards (ie: the big bulges that protrude into the engine bay and the hatch space and contain the suspension, brakes and wheels).

You would be able to get away with a 205/45 aspect tyre on 16 inch wheels and a 205/50 aspect tyre for 15 inch wheels without any rubbing with stock ride height and geometry on your Si.

[destrukshn]

that link from ebay.
thier from a prelude.. which i'm qutie sure is 4x 114.3.
civics are 4x100

[iamhappy46]

The 92 Si came stock with a 185/50/R14 yeah? In that case you'll be able to go as wide as a 211mm tyre, not that they make one in that size.. (26mm larger than stock is the limit in Sydney so I assume its the same south of the border). As for diameter, you are allowed to have a roling diameter 15 mm greater than stock. Realistically, the biggest you can go is a 17 inch rim but you'll need to get 30 aspect tyres which are hideously expensive. A 16 is probably your best bet for looks, a 15 for function.

Just to clarify this:
26mm rule applies to RIM not tyre width. So if your rims is 14" diameter but 6.5" wide(it will have it printed on the rim somewhere) then you can legally fit a 7.5" wide rim if it fits inside your guards.
17" rims will fit with 205/40R17's, 18" rims will fit with 215/35R18 and 19's will even fit with 215/35R19 but you need to determine if they are legal.

According to this tyre calculator program
http://miata.net/garage/tirecalcold.html
your stock rolling diameter(they are 185/60R14 by the way) is: 577.6mm and 205/40R17's are: 595.8mm
Lucky the largest factory option is a 195/60R14 being a 589.6mm so atleast 17's are legit.

[Captiva_Blue]

The 26mm rule doesn't apply to RIM width. It applies to WHEEL width. The RTA regulation sheet talks about Tyres, Rims and Wheels. Wheels = rim and tyre and is based on the width of the tyre (ie: 205, 185, 195, etc.)

Where are you getting the info that the largest factory option is 195/60/R14? Just interested.

[iamhappy46]

WHEEL WIDTH, not TYRE WIDTH... I have 255/35/ZR20's on my X-Trail and it came factory with 205/70R15's. This car has been over the pits(blue slipped), RTA inspected and had Mr Plod ATTEMPT to defect me numerous times. Luckily, I am in the industry and kept a copy of my RTA notice in the car... It looks exactly like this one, except hard copy
http://www.rta.nsw.gov.au/registration/downloads/vsi/vsi09_rev4.pdf

Read it for yourself

[Captiva_Blue]

Thats where I read what I said and I've called up the RTA to find out what exactly that means.

They said that the 26mm increase is basically based on the amount of rubber in contact with the road. If you had 185 tyres to start with, thats 185mm of rubber in contact with the road, therefore you can have up to 211mm of rubber in contact with the road.

[iamhappy46]

If you read the bottom of page 2, it states WHEELS can be 26mm larger but continue reading thru the article and it will get to TYRES.

Take for example Commodores, they can legally fit a 265/35R18 when they factory came with 205/65R15's

Re-read the bottom of page 3 where it talks about WHEELS not TYRES(on page 4)

Notice on page 3, the table is talking about rim widths, not tyre widths.

From my experience, you need to get someone at the RTA who knows what they are talking about. Normally takes about 200 attempts ;)

[Nodachi]

btw when u change bigger rims.. do you have to adjust your speedo?

[Captiva_Blue]

provided you don't go above the 15mm rolling diameter increase, you won't have to. All ADR complied cars have a 10% leeway in speedo calibration, so that won't be exceeded if you stick to the guidelines.

[Nodachi]

lets just say i have 175/45/14(?) stock EK GLi tires size and i've changed to 205/50/16... will i need to calibrate?

[Captiva_Blue]

Most definitely, but I don't think thats the OEM tyre specs of an EK GLi. 45 aspect tyres would be ok assuming you have 185/50/14 on your car originally.

[Nodachi]

i c... sorri i guess it's 50...
so where do i go to calibrate my speedo?
and the most important quest of all...How much they charge?

[Project_D]

hey guys, i've got 17inch , 205 width on my EG VTi. i can't tell whether my wheels are scraping or not, but is this legal? cause it looks a bit big & i don't have much room from the tyre to my guard.... thanks

[Captiva_Blue]

hey guys, i've got 17inch , 205 width on my EG VTi. i can't tell whether my wheels are scraping or not, but is this legal? cause it looks a bit big & i don't have much room from the tyre to my guard.... thanks

What's the aspect ratio of your tyres? If they're bigger than 35 for your particular setup, its illegal.

[Ollie]

I'm guessing all this info is relevant to EG3 hatches as well?

[Lukezen27]

I'm guessing all this info is relevant to EG3 hatches as well?

Sure is :)

[Project_D]

ummm i don't really know what aspect ratio means... where can i check it? but i know they are pretty low profile

[Captiva_Blue]

Aspect ratio is also known as the profile of the tyre. So if you have 185/50/R14, then your aspect ratio is 50. It's actually an expression of the width of the sidewall as a percentage of the width of the tyre, ie: with a 185/50 tyre, the sidewall of the tyre will be 92.5mm wide (50% of 185mm).

And for Ollie, the measurements I gave don't necessarily apply to an EG3. The calculations are based on the largest optional wheel/tyre available for your particular car's axel/suspension setup. As far as I know, because the engine/gearbox is different to an EG5 Si, the axel setup is probably different so you'd have to find out what the largest optional wheel/tyre was for an EG3, then plug it into this:

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

To work out what's legal (remeber.. 15mm overall diameter increase and 26mm width increase are legal in NSW).

[iamhappy46]

To clarify previous discussion:
26mm increase in wheel width not tyre width. Spoke with, the RTA Technical Advice Line, 3 RTA approved engineers and 4 tyre shops today to confirm that tyre widths are fine. However, say you have a 7" wide rim(regardless of diameter) it would be dangerous(although not illegal) to fit any tyre wider 235mm. Basically any tyre 60mm wider than the rim is a bad choice.

[iamhappy46]

hey guys, i've got 17inch , 205 width on my EG VTi. i can't tell whether my wheels are scraping or not, but is this legal? cause it looks a bit big & i don't have much room from the tyre to my guard.... thanks

My advice on this issue, is to check your tyre placard, usually located around your driver door area, in your glove box or check your owners manual. It will inform you of what tyres can be fitted and what the factory options are. If in doubt, ask a tyre retailer what the largest option is. I believe 185/60R14 is an option on EG & EK's. Use the tyre calculator to work out whether your rim & tyre combination is OK.

If for some reason it is not, get an engineer to check it out, if you have 10mm clearance from suspension/chassis components, then it can be certified as LEGAL for a fee.

I have seen 19's engineered on an EG, so 17's should have little problem if you keep your tyre sizes right.