claybrit84rx7

i am gonna get a set of 16 inch momo racer rims and i was wondering if they would fit with low profile tires..cuzz i have heard that only 15 will fit soo i am asking the experts

chedda_j

well im not sure why not, but if you have a low enough profile i bet you could fit 17" under our cars. Stock 21" tall tires, that means you have 5 inches of tread on a 16" rim. Something around 205/60R16 Or something that effect should work. what i posted is slightly too big 6% larger, but thats not that bad.

claybrit84rx7

ok and another question should i jst get wheel adapter for the bolt pattern cuzz the rims are 4x100mm and the rx7 bolt pattern is 4x110mm??

twinkletoes

iTrader: (17)

You could if you really wanted the wheels, but you can find some 4x110 size bolt pattern wheels. It's your choice though. Good luck.

chedda_j

yes adapters are expensive for the most part. what you can do is just find a set of 16" mustang rims (82-91) 4x108. there are quite alot of rims for that mustang so you can just get a set of those and put them on your car. That or your looking at another 100 bucks a wheel for the adapter, plus then your going to have to worry about your offset because the wheel adapters will stick out that much further

PaulFitzwarryne

Never belive 'experts'. Even 17" will fit but with extreme width, like 235, you need to roll the lip and possibly add flares.

16" is a good compromise for daily use, but 205-16 is not a possible combination. You need a lower profile 45 or 50 series depending on if the car has been lowered. Tire specs give the rolling measurements. Find outwhat it is for your present tire, then select the same measurement for the wheel size you are thinking of getting. the results will be a series 205-14 -60. 205-55-15, 205-50-16 so you can choose the right size. another advantage of keeping to the same rolling diamension is you do not have to adjust your speedo.

The Gen 1 came out in two stud patterns, the early models being 4x110, you have to select the right stud pattern and offset when selecting a wheel.

Bitpharked

Just put 17' x 7' with 40mm Low profiles on my 83 RX7 Series 2 (has same over height as my 13' rim and standard tyres so it wouldnt put out speedo) with standard suspension not a problem. If I lowered the car an inch (which I will do soon) I will need to look at flaring guards. (more at front than back) but haven't scrubbed tyres out yet on current setup. Not much in the way of standard mags for Rx7 s2 models so I had to get mine custom made.

H22a/13bt

I have an '85 GS with a full GSL-SE suspension conversion. Having the bolt pattern of 4x113.4 my wheel selection is a bit better than stock (4x110) but I did have to experiment with offest and wheel spacers to get things to clear propperly with 16's.

I originally bought some ADR's, that were 16x7 with an offset of +40. I ended up using 5mm spacers in the back, and 8mm in the front. I think that I could haver gone without using spacers in the rear, but 8mm was the least I could run up front without rubbing the tires on my Ground-Control coil overs.

The tires size that I found was closest to stock were in 215/45/16.

I've since sold those wheels because I am trying to get away without using spacers, and I'm also trying to run 8" tires in the back.

I just bought some Enkei Racing RS wheels in 16x7 with an offset of +32 for the front, and 16x8 with +37 offset in back. For the front I'm getting the same 215/45/16 and either 225/45/16 or 235/50/16 (I would go 235/45/16 if I could find them.

I should be getting the tires in the next week or so and I'll post pics once they're mounted.


On another note, wheel adapters should workout well but you have to be sure to buy wheels with a large offset (something intended for a front wheel drive car should work well).

Good luck

boiler81

Have you got pics of your wheels yet! We your Enkei's a 4x114.5 ?

aussiesmg

iTrader: (1)

I have coil overs under front and car is low, running 16" with 205/40/16 Nittos, never bottom the tires on the fenders but did have to use 1/4" spacers on front to clear the steering linkages.

85rotarypower

A 205/45R16 is pretty much the same size as the stock tire. Stock tire is about 23" tall I believe.

aussiesmg

iTrader: (1)

I worked mine out to be off by less than 2%.

64mgb

iTrader: (1)

I just did this. 205-50/16 tires on 16" Konig Trouble wheels with 40mm offset. First I had to get 1/2" spacers so the tires would clear the springs on the front. Then the tires rubbed on the fenders, so I had to get ride height adjusting plates to raise the front end. Now I get just a very slight rub, and only when I hit a large bump. The rear fits fine with no modifications.

Rich

MeFBpwn3sJoo

ive got 20/40 r17s on my car now. im lookin to get rid of they have new tires on em.

85rotarypower

185/70R13 (stock size) is 23.2" tall. 205/45R16 is 23.3" tall. 205/50R16 is 24.1" tall and 3.8% off from stock. 205/40R16 is 22.5" tall and 3.2% off from stock. I don't know how you figured less than 2% aussiesmg, but it certainly isn't right.

For all wondering, I use this site to get my tire sizes and speedo changes. http://www.miata.net/garage/tirecalc.html

Kind of an unrelated question, but why does everyone think that a bigger wheel won't fit? You can fit up to an 18" on the 7 with a 215/35R18 tire. As long as the overall diameter of the tire is within about 4% of stock, you should be perfectly fine.

bad 83

iTrader: (3)

17"s are about the limit without rolling the fender lip. My current setup is 17" Koning's with 205/40r17s up font, and 215/40r17s out back. I am using wheel adapters to get off the 110 bolt pattern, and the -15 offset. The adapters I am using came from Excaliber wheel accessery's. http://www.excaliburwheel.com./ With these, I am using a +40 offset that about all your front wheel drive Hondas and such use. This really opens up your optoins to wheel choices.



With the 14" WEDS looks ok,



But with the 17's, mutch better!!!

boiler81

Bad83 - Nice 17"'s!
What 's the size (thickness) of the adapter you used? I didn't see 4x110 to 4x4.5" listed, did you special order?
How's the ride with the 17's. Was the added weight(?) noticable on acceleration?

P.S. I'd heard that the stock offset for the 13" wheels was about +18, is this incorrect?

85rotarypower

Stock offset for the 13's is +25mm. Says so right on the back.

85rotarypower

Alright, after spending about a half hour doing figures and measurments, I've found a 7" wide +38mm offset wheel with a 1" adapter (effective offset of 13mm) will sit 1/2" further out in relation to the 205/60R13 on my stock 25mm offset wheels. As it turns out, since both that tire and the 7" wide wheel are the same relative width (7" wide wheel is actually 8" from lip to lip, and 205 tire is about 8" wide) the relative position is directly related to the stock wheel's offset, and at 12mm difference (about .5"), this puts the new wheel about a half inch further away from the strut.

I don't know if that makes sense, but there you go. I'll know tomorrow for sure if that difference will fit under the stock fenders.

bad 83

iTrader: (3)

The 17's are considerably lighter than the stock 13's. I have never run 13's on my car so I don't know the backspacing. You will sacrifice a little ride comfort going to 17's, but you will more than double the handling taking the twisties! I can say from personal experience that I can take a corner a heck of alot faster with the 17's. It's a trade off. If you want comfort, don't go over a 14", but if you want handling, don't go over a 17". I know some guys who are running 18's, but they ride like crap, and don't handle any better than mine.

openshot

i think the biggest is 18 inch i got it off a web site

boiler81

Bad83,
What size spacer (thickness) did you use for your 17 x 7, +40mm offset rims?
I figure if the stock wheel (13 x 5.5) offset is +25, and your new rims are +40 offset, you would need a 34mm thick adapter to keep the inside clearance "stock" and the new rim would extend out 38mm further than stock. Does this sound right?

85rotarypower

You are correct on that, but you don't need to keep the inside clearance stock. You can move the inside of the wheel in about an inch without issue. Like I said in my post, any wheel around +38 to +42 mm offset with a 205 wide tire will require a 1" spacer to clear the strut on the inside, but it will still fit under the fender.

Basically, adding a 1 inch spacer to a +38mm offset wheel is like adding a 1/2" spacer to the stock wheel. I forgot to update that it will fit under the stock fender. A 3/4" spacer would probably be ideal, but you can't get spacers that thin. A +45mm offset would be best with a 1 inch spacer probably.

13BT_RX3

If you are putting 15x7 on an GSL-SE it takes a +25, but it take +18 for non SE.

64mgb

iTrader: (1)

I put a 0.5" spacer on mine. It has Konig Trouble wheels, 16x7, 40mm offset, with 205/50-16 tires. The inside just clears the spring, and the outside rubs. I'll try rolling the fenders, but I think I might have to get a set of ground control coil overs to do two things: 1) raise the front end a little, and 2) allow the use of a thinner spacer which would bring the outside edge in.

Rich