Maximum TIRE(Rubber) fitment thread

[hellion240sx]

okay so plugged in the same numbers and this is what i got from willitfit:
old/new
Diameter 615mm 606mm
Circumference 1932.1mm 1903.8mm
Poke 42.6mm 101.6mm
Inset 122.6mm 101.6mm
Speedo error 0% 1.49%
Reading at 30mph 30mph 30.45mph
Reading at 60mph 60mph 60.89mph
Ride height gain 0mm -4.5mm
Arch gap loss 0mm -4.5mm

So how would I go about seeing if I will hit lock to lock and not rub?

acutually it gives to reading from the speedo. well from the two diff sites....

[Dub's]

18x10 +25R 295/35/18. stock rolled fenders. I have a question. I want to go 18x11 so I can go 315 and im having trouble finding any wheels that are 17x11 or 18x11 with a +35 offset? When i installed the 18x10 +25 it seems like I had almost more than a inch before i hit the coil overs. Anyone knows what offset I can go before i max out on the coilovers? I really want to go 12 in wide if i could also. I done some research but can't really find any s14 doing some 18x11 +35 or +40 offset with a 315 tire which fits perfectly on a stock rolled fender.

[ka-titties]

i just got those same wheels. but the 10" all around. havent mounted tires yet.

[Broadfield]

Originally Posted by Dub's

18x10 +25R 295/35/18. stock rolled fenders. I have a question. I want to go 18x11 so I can go 315 and im having trouble finding any wheels that are 17x11 or 18x11 with a +35 offset? When i installed the 18x10 +25 it seems like I had almost more than a inch before i hit the coil overs. Anyone knows what offset I can go before i max out on the coilovers? I really want to go 12 in wide if i could also. I done some research but can't really find any s14 doing some 18x11 +35 or +40 offset with a 315 tire which fits perfectly on a stock rolled fender.

Simply measure off your current wheel setup... doesn't get any easier than that. If your saying that you have almost an inch, then you have almost 25mm more of clearance to play with. If you go with an 18x11 +35 then you will lose 23mm of clearance on the inside... measure and see if you have another 23mm on the inside. Keep in mind it may also hit the inner fender well. I had to hammer the shit out of mine to fit my wheels... the inner lip of the wheel would hit my inner fender well before it would hit my coilover. You are not near as low as me though, so it may not be an issue. Also, mine is an S13, so you can't go off mine as far as fitment for yours. You will also stick out 3mm more, so as long as you are fine with that. Which I assume that will be fine since you are not trying to tuck tire.

[Skilz10179]

Originally Posted by Dub's

18x10 +25R 295/35/18. stock rolled fenders. I have a question. I want to go 18x11 so I can go 315 and im having trouble finding any wheels that are 17x11 or 18x11 with a +35 offset? When i installed the 18x10 +25 it seems like I had almost more than a inch before i hit the coil overs. Anyone knows what offset I can go before i max out on the coilovers? I really want to go 12 in wide if i could also. I done some research but can't really find any s14 doing some 18x11 +35 or +40 offset with a 315 tire which fits perfectly on a stock rolled fender.

My rears are 18x11 +25 and i had a little bit of rim to coilover rubbing going on under hard cornering which forced me to use some 3mm spacers.

[hellion240sx]

okay so plugged in the same numbers and this is what i got from willitfit.com:

old/new

Diameter 615mm 606mm
Circumference 1932.1mm 1903.8mm
Poke 42.6mm 101.6mm
Inset 122.6mm 101.6mm
Speedo error 0% 1.49%
Reading at 30mph 30mph 30.45mph
Reading at 60mph 60mph 60.89mph
Ride height gain 0mm -4.5mm
Arch gap loss 0mm -4.5mm


rimnsntires.com

old/new

Wheel size 15x6.5 ET 40 / 15x8 ET 0
BackSpace 135 mm (5.3'') / 114 mm (4.5'') 21 mm (0.8'') shorter.
Rim Lip / 59 mm (2.3'') wider
Typical Weight ~ 15 lbs / 7 kg ~ 18 lbs / 8 kg
Tires: Tire 1 / Tire 2
Tire size 195/60-15 / 225/50-15
Section width 195 mm (7.7'') / 225 mm (8.9'')
Sidewall 117 mm (4.6'') / 113 mm (4.4'')
Tire diameter 615 mm (24.2'') / 607 mm (23.9'')
8 mm (1.3%) shorter.
Rim sizes 15x5 to 15x7 / 15x6.5 to 15x8.5
Circumference 1931 mm (76'') / 1906 mm (75'')
Revs per mile 833.4 / 844.4
Speedometer Assuming that this is OEM tire and speedometer readings are correct >>> When speedometer reads 60mph (96.6km/h) actual speed will be 59.2mph (95.3km/h): 1.3% slower.

So how would I go about seeing if I will hit lock to lock and not rub? height wise it looks like a go from both sites just not sure about hitting c/o's inner fender etc. can someone help me out please. thanks!

acutually it gives to reading from the speedo. well from the two diff sites....

[Dub's]

Yeah Boardfield its going to be a close one. Maybe +30 18x11. Inch is 25mm so 23mm is freaking close. =/

skilz my tire is already some what rubbing since its 295/35/18. Damn so +35 won't work huh? I got cusco coilover is your some what fatter? I guess i can't really do 18x11 with a 315 unless I really pull that fender.

Could i get some pictures?

[mikerbike]

Originally Posted by hellion240sx

So how would I go about seeing if I will hit lock to lock and not rub?

Well the inside of the tire/wheel (INSET) is about 15mm further outward, and the tire height is obviously about 4.5mm shorter from the center. So inner rubbing should be better than the stock wheel/tire. But the outside edge of the tire is your new concern.

The 225/50 on an 8" +0 is 70mm further out (POKE). So look at your car and figure out if you can add 70mm more tire toward the outside. Simple.

And stock S13 wheels are 15x6, not 6.5. I'm not sure if that's what you meant or if you have some aftermarket 6.5" wheels.

[shiftdrift]

Nismo Lmgt4
18x8.5 +25 245/40/18
18x9.5 +30 275/40/18
Stock suspension atm getting Koni/??? Spring setup.

[shiftdrift]

Here are pics

[hellion240sx]

Originally Posted by mikerbike

Well the inside of the tire/wheel (INSET) is about 15mm further outward, and the tire height is obviously about 4.5mm shorter from the center. So inner rubbing should be better than the stock wheel/tire. But the outside edge of the tire is your new concern.

The 225/50 on an 8" +0 is 70mm further out (POKE). So look at your car and figure out if you can add 70mm more tire toward the outside. Simple.

And stock S13 wheels are 15x6, not 6.5. I'm not sure if that's what you meant or if you have some aftermarket 6.5" wheels.

I have a stock s14 with these:

specs 15x6.5 +40 stock tires are 195/60/15 4 LUG.
like so with usdm front:

Well I measured just now and it looks like it will fit... Thats what she said... but I measured on the front most area of the tire and the back most area of the tire as well. I'll measure again with the wheels turn to full lock. about to go to bed. I measured with the current wheels, but that would change by a few mm of clearance, like credit card thin, correct? Sorry guys I'm trying to understand this! 6th time editing...

[Skilz10179]

Originally Posted by Dub's

skilz my tire is already some what rubbing since its 295/35/18. Damn so +35 won't work huh? I got cusco coilover is your some what fatter? I guess i can't really do 18x11 with a 315 unless I really pull that fender.

Could i get some pictures?

A 11" wide +35 just MIGHT work with zero camber but i personally don't have much faith in it. I have Stance Gr+Pro coilovers, im not sure how fat they are in comparison to your Cuscos. IMO a decent pull is a must to fit a 315 under the fender. I'll post a pic of my set up a little later but I'm only running 275's out back.

[Skilz10179]

Front 18x9.5 (+7 with 3mm spacers) in 245/35/18 tires
Rear 18x11 (+22 with 3mm spacers) in 275/35/18 tires

[Beatupsx]

Originally Posted by Skilz10179

Front 18x9.5 (+7 with 3mm spacers) in 245/35/18 tires
Rear 18x11 (+22 with 3mm spacers) in 275/35/18 tires

I'm planning on getting the same wheels(been saying that for 2 years) but in 18x10+15 in the front and 18x11+30 in the rear. Like you I'm running the stance gr+ pros, and I am curious as to how much clearance you have between the wheels and the coilovers, along with the rest of the suspension.(before and after the spacers)

[Skilz10179]

Originally Posted by Beatupsx

I'm planning on getting the same wheels(been saying that for 2 years) but in 18x10+15 in the front and 18x11+30 in the rear. Like you I'm running the stance gr+ pros, and I am curious as to how much clearance you have between the wheels and the coilovers, along with the rest of the suspension.(before and after the spacers)

Try reading this page.....

[Beatupsx]

I did, and the only thing you said is that you had a little bit of rubbing in the rear between coilover and wheel, which explains the spacer, but you didn't say anything about camber settings. You also didn't say anything about the clearance in the front, or why you are running a 3mm spacer.

[ka-titties]

Originally Posted by Skilz10179

Front 18x9.5 (+7 with 3mm spacers) in 245/35/18 tires
Rear 18x11 (+22 with 3mm spacers) in 275/35/18 tires

this is faptastic

[hellion240sx]

anyone? Btw update. So i measures 3 inches but not sure if I measured from the right spot. It doesn't hit anything when I measured. around the tire.

[jason_rsx]

meannnn looking stances

[Dub's]

Yeah man, i plan to do highway rolls. I'm making 800rwhp+ and can't get any traction. I need to get some 315's bad. I really don't wanna get some wheels that 18x11 +30 and not fit a bit. lol

Shiftdriftz and skilz. How much space ya have between your wheel and coilovers. This will help me get an idea.

[Flicktitty]

Originally Posted by Dub's

Yeah man, i plan to do highway rolls. I'm making 800rwhp+ and can't get any traction. I need to get some 315's bad. I really don't wanna get some wheels that 18x11 +30 and not fit a bit. lol

Shiftdriftz and skilz. How much space ya have between your wheel and coilovers. This will help me get an idea.

if your making that much power why not do a 15x10 with a 315/60/15 Mickey Thompson E/T street? or even just a 275 E/T street will do the trick.

[Dub's]

Yeah got prostars 26x11.5x15 for track only. People don't like to race if you got slicks on the back. =/ I want some clean 18x11's.

[Skilz10179]

Originally Posted by Beatupsx

I did, and the only thing you said is that you had a little bit of rubbing in the rear between coilover and wheel, which explains the spacer, but you didn't say anything about camber settings. You also didn't say anything about the clearance in the front, or why you are running a 3mm spacer.

If my rear wheels rub the coilover i don't suggest you try to use a wheel that sits 5mm even closer to the coilover. I don't know my exact camber specs but if i had to guess i'd say -4 up front and -3 in the butt. Not sure my exact clearance up front from the coilover, i had to run a 3mm spacer to clear my brakes....

[Flicktitty]

Originally Posted by Dub's

Yeah got prostars 26x11.5x15 for track only. People don't like to race if you got slicks on the back. =/ I want some clean 18x11's.

yeah that makes sense. it's funny what a cage, and 225 drag radials will stop people from doing...

[Dub's]

Oh wow so 18x11 will sit in more than a 18x10 even with a +22 offset. So it rubs the coilovers huh. fuckkk.. guess im gonna have to get my fenders professionally pulled.

[Broadfield]

Originally Posted by Dub's

Oh wow so 18x11 will sit in more than a 18x10 even with a +22 offset. So it rubs the coilovers huh. fuckkk.. guess im gonna have to get my fenders professionally pulled.

Offsets are taken from the center of the wheel... zero offset is the center of the wheel. So if you go with a +22 instead of a +30 and add an 1" of wheel width, then essentially you are adding a 1/2" of wheel width on the inside and outside. Factoring in the new offset(+22) you are adding +5mm more of wheel on the inside and add around 21mm on the outside.

I recommend this very easy calculator if you cannot do it in your head or visualize it:

Wheel Offset Calculator

[Turbo24sxt]

Originally Posted by Dub's

Yeah man, i plan to do highway rolls. I'm making 800rwhp+ and can't get any traction. I need to get some 315's bad. I really don't wanna get some wheels that 18x11 +30 and not fit a bit. lol

Shiftdriftz and skilz. How much space ya have between your wheel and coilovers. This will help me get an idea.

care to share dyno ?

[hellion240sx]

Originally Posted by Broadfield

I recommend this very easy calculator if you cannot do it in your head or visualize it:

Wheel Offset Calculator

Hey Toby I tried to use the 1010 tire site and It didn't help with my question

anyone else wants to take a shot?

when I measured with the 3" I added it to the side wall height. Is that right?

[Beatupsx]

Originally Posted by Skilz10179

If my rear wheels rub the coilover i don't suggest you try to use a wheel that sits 5mm even closer to the coilover. I don't know my exact camber specs but if i had to guess i'd say -4 up front and -3 in the butt. Not sure my exact clearance up front from the coilover, i had to run a 3mm spacer to clear my brakes....

Hmmmm........3 degrees of camber is a good bit, I'm curious as to if it is possible get away with an offset closer to a +30 with camber in the 1-1.5 range.

I'm almost positive that with less camber and a +25 will have no issues with the suspension , and it shouldn't take to much to clear the fender, I'm almost tempted to give +25 a shot.

[Dub's]

Thanks board field ill try to comprehend what you said and get a pair of rears soon.

Here's the dyno but there was ignition issue. Not sure if the LS1 coils are just bad or needs upgrade. We might be upgrading LS2 or cbr coils soon. We already stepping up to a 6765. Im not there yet unfortunately. Sorry i made it sound like I already got 800 but wanted some answers. lol