Hi guys.

I recently procured a JDM 98 spec ITR.

According to the previous owner, and I have confirmed this, the original seats & wheels were removed before the car reached South African shores.

He kept it this way for 2.5 years.

I'm returning it back to spec, & have pretty much managed to locate a set of front seats.

Wheels are a problem. Aftermarket 16" isn't popular in SA, & I don't want to go down to 15". So the next obvious choice is 17".

The problem is that the car is extremely rare in SA, & as a result, I cannot find the original wheel specs. This is obviously what I need to be able to determine the correct offset for the 17" I want to fit.

I have found varying info off the net. Would this be correct?
5 x 114.3, 6J, 64.1 bore, 55 offset

What would be the correct size 17" wheel & tyre to use? I'd prefer at least 7.5J with 225 tyres.

Bear in mind that I have Tein coilovers & plan on going reasonably low, but nothing outrageous. The car will be performance orientated & I will eventually go turbo.

Please help......

 

HAHA i woke up with the same question... 17x7.5 +45 OS...

 

Honestly, I'd go with 15" wheels over 17" on a Type R. If performance is your main concern, larger diameter wheels would definitely hurt you and in my opinion anything over a 16" wheel on an Integra looks silly. ITR's actually came with 15" wheels in the US, by the way.

 

So the stock specs are 5 X 114, 6j, 64.1bore, 45 offset?

Are you saying 15" even for a 500whp turbo?
Wonder how a 15" up front with semis, and 17" rear will look.

 

look at this thread
there you can find some pics and info...

https://honda-tech.com/forums/acura-integra-type-r-8/17x7-5-45-os-anyone-3174008/


IMHO the best size für a 17x7,5 wheel is a 215/40 tire.

The rolling circumference of a 215/40 and the original 195/55/15 is nearly the same.
There are some good UHP tires available and also good semi-racing tires like the Kumho V70.
The Toyo R888 semi comes in 205/40 but the effective width is 213mm.
Here is for example my 17x7,5 wheel with a R888 in 205/40 i drove some time ago.





If the rolling circumference is regardless for you you can get some 215/45 tires.
There are infinite numbers of good tires in this dimension.

This applies also to the 225/45.
BUT: it could be a problem with the original arches. don´t know exactly if a 225/45 tire would rub with a offset of +45 ???

hope this helps

 

I don´t know what of the different types of OEM wheels do you mean,

but this OEM wheel here ->



is a 15x6 with offset +50 (EUDM spec)

the JDM spec OEM wheel (same style) is a 16x7 with offset +50

 

There is a difference of about a 1/2 inch diameter, or 10cm between the two. Not significant, but different nonetheless.

And the tire selection in a 215/40/17 is not all that good in the USA. 215/45/17 is way better, but that tire is too tall.

 

yes there is a small difference, but the too dimensions are so close together that i would say it is practically the same.

My calculator says that a 215/40/17 has a diameter of 60,4cm (23,78 inches) and the 195/55/15 of 59,6cm (23,46 inches)
The difference between these two sizes should be 0,8cm ( 0,32 inches) in Diameter and 2,6cm ( 1,02 inches) in rolling circumference... that is more or less the same

Yeah, the 215/45/17 Dimension is very popular, you can get nearly any tire in that size
But as you said -> it is too tall...


PS: 205/40/17 is REALLY the same as 195/55/15

 

My ITR is a JDM spec, so I'm referring to the oem 16's they came with.

 

So using a 7.5j 17" rim, with a 215/40/17 tyres will be the same as running a 15"? No loss in performance?

Most importantly, what offset rim should I use?

If I used a 7j wheel, can I still use 215/40/17?

 

No, not really... every time you use a bigger wheel you will loose some performance (compared to a smaller wheel).
Although the wheel diameter ist nearly the same. You have more rotation mass with a bigger wheel.

The use of bigger rims have finally two reasons.
1.) You have a big brake kit and there is noch chance to fit a small rim.
2.) you dont like the look of small rims


Well, offset +45 works well on the ITR but in the end it is a matter of taste.

Yes you can use a 7j wheel with a 215 tire.
Most of the tire manufacturers recommends a wheel width of 7f up to 8j for a 215 tire.
Personally i would not go smaller than 7j.

 

Thanks for the info. I guess if I don't want to lose performance, I either go 15 up front and 17 rear, or a compromise of 16 all round.

 

Why 15 up front and 17 in the rear? At that point you might as well do 17s all around, it'd look silly with 15 in front and 17s in the rear. I have 16's all around on my Integra and it's about as big as I'm willing to go, I personally wanted to go down to a 15 to run a meatier tire. But it's all preference. Just my $.02

 

Lol, just a thought.

I meant 15's up front with semis, with the same style wheel on the rear, just larger, and with street tyres

 

It's not RWD. Different sized wheels look silly on a FWD car unless you have a drag car or something.

Just do a 225 front/205 rear size stagger if you're worried about the rear having too much grip.

 

Guess I'm just too accustomed to Rwd modding. I also have a 2jzgte single turbo Mk2 Supra.

I think it's going to be 16's then. What the car came with, at the very least.

 

Will these fit?

http://www.gumtree.co.za/cp-tyres-ri...sale-535377111

Or these, although they don't look especially great.

http://www.gumtree.co.za/cp-tyres-ri...5-16-517726592

 

Any ideas about the S2000 wheels?

I've seen threads about the AP1 16" wheel, but nothing about the AP2 17" wheel.

I kinda know it's too wide, so perhaps it's wishful thinking, but has it been attempted?

 

you can get it to fit. i've seen 17x9's fit with some stretched tires and camber, but performance wise, not a good idea.

i'd go with 15's or 16's on your car, especially if you're turbo.
all things pretty much equal, my friend and i both had GSRs at one point, and the only real difference was he had 17's and i had 15's with 205/50/15 Azenis on. i took first gear by a little, but by 2nd gear it was no contest. i am also fatter than him LOL.

but anyways, 15's or 16's on your car pls. also, if you go with the same size all around, you can rotate tires front to back and extend tire life. good luck

 

17x8's and run 235 or 245's. Extremely common size and very cheap for even race tires because of it. It will be donk riding since most are 24-25" tall but you'll have plenty of tread, and room for huge brakes. 245/35/17 are just under 24" tall if you can find them.

 

When you say by 2nd gear no contest, I assume you mean you easily pulled ahead?

Well, look at these:

http://i702.photobucket.com/albums/ww30 ... RA0122.jpg
http://i702.photobucket.com/albums/ww30 ... PRA014.jpg
http://www.google.co.za/imgres?sa=X&...9,r:4,s:0,i:90


Genuine Enkei Aegis 17" 5x 114.

Narrow and Wide and staggered. 8J, 9J and 3 piece.

Offset is 45-40?

Has JAPAN stamp on the back.

The front tyres are Yoko A-Drives and rear has Kumho. 60-70% all around.

Will they fit?

If they do, I'd assume the performance aspect will be seriously adversely affected.

 

Tires that fit the JDM 16" are becoming rare these days. It seems like Bridgestone is the only company that makes 215/45/16 sized tires these days. The race series I participated in until last year required that I use Dunlop Direzza tires for the whole season in order to qualify the season championship prize, but Dunlop only makes 205/45/16, 205/50/16. 205/55/16, 225/45/16 or 215/40/17. I like the 215 profile but that would mean buying a whole set of wheels and suspension which would get expensive. But I think if I am going to continue in this series I have go 17" or go thinner tires with a thicker profile.

 

Well, the 17's are fitted. 7j, with 215/40/17 tyres.

I did some weighing. The 15" that was on my car, fully inflated, with almost full tread, weighs 17kgs, and is 610mm high. It's an incorrect profile 195/60/15.

The 17" wheel is 8.5kgs, and tyre that's barely legal, is 7.5kgs. Combined 16kgs, uninflated, at 590mm high.

So they're roughly the same. That taken into consideration, will rotational mass be a cause for concern, from a performance perspective?

 

I've always said the larger diameter wheel you pic spend the $$ and go as light as possible. Heavy 17's will cut down some on acceleration even using a very low profile tire. Think twice before mountng 17's on the caR. Just my $.02.

 

I've driven the car a few times since the wheels have been fitted, & I have rubbing issues front & rear.

These wheels are +35 offset, & as per a site I went to that calculates offsets, 35 to 45 should technically work, yet it technically does not.

I need some advice. If I can get say 4mm off the back of each wheel, roll the rear fenders & go maximum allowed negative camber, will they work, bearing in mind I will go most likely 20mm, but possibly a maximum of 30mm lower, using my Tein coilies.