Maximum TIRE(Rubber) fitment thread

[SicBastard]

Sick! What's the car being built for? Are those R6, A6, or something else?

[racepar1]

Originally Posted by SicBastard

Sick! What's the car being built for? Are those R6, A6, or something else?

Those are hoosier race slicks for vintage race cars, or maybe some circletrack stuff...

[godzillarb]

Originally Posted by SicBastard

Sick! What's the car being built for? Are those R6, A6, or something else?

Originally Posted by racepar1

Those are hoosier race slicks for vintage race cars, or maybe some circletrack stuff...

They may be used for vintage stuff, but they're Hoosier Quick Time Pros. Their only purpose is drag racing haha.

The main reason I got those tires is that there are a few dumbasses at the local track that need to be put in their place. I'm more interested in standing 1/2 mile events and such which will use a different setup.

[amarx2002]

Rota P45R, 18x9.5 +12
8mm spacers up front

Front - Dunlop Direzza ZRI 255/35/18
Rear - Nitto NT555 275/30/18

[drewssc400]

Wanting to put some Work XD9 18x10 +18 on all 4 corners. 1997 240 with stance coilsand allcamberarmsinstalled. I dontmind rolling/pulling the fenders some. Can I get away with say a 265/35/18 all around? I don't mind a few degrees of camber but would like to get the biggest footprint on the ground without the stretched look. ill be ordering the wheels and tires tonight. thanks

[Karlitos]

Originally Posted by drewssc400

Wanting to put some Work XD9 18x10 +18 on all 4 corners. 1997 240 with stance coilsand allcamberarmsinstalled. I dontmind rolling/pulling the fenders some. Can I get away with say a 265/35/18 all around? I don't mind a few degrees of camber but would like to get the biggest footprint on the ground without the stretched look. ill be ordering the wheels and tires tonight. thanks

Thats going to be tough. Maybe not in the rear, but the front will require quite a bit of camber and lots of pull i imagine.

[spray2020]

looking for some help with a tire setup:

I am currently restoring a set of super advan SA3 wheels 16x7 and 16x8 +32 all around.

I am looking to run a maximum tire size on these wheels (yes, I know they aren't an aggressive size).

Over here in Australia, they don't carry Dunlop Direzza Star Specs, which was my first choice- but I plan to get another high performance tire.

is 225/55/16 all around pushing it? or could I go bigger?

application: 90' s13 silvia, and I don't want to do any pulling/rolling of the fenders.

[SicBastard]

Originally Posted by spray2020

looking for some help with a tire setup:

I am currently restoring a set of super advan SA3 wheels 16x7 and 16x8 +32 all around.

I am looking to run a maximum tire size on these wheels (yes, I know they aren't an aggressive size).

Over here in Australia, they don't carry Dunlop Direzza Star Specs, which was my first choice- but I plan to get another high performance tire.

is 225/55/16 all around pushing it? or could I go bigger?

application: 90' s13 silvia, and I don't want to do any pulling/rolling of the fenders.

Straight up.... 16s are dead. That being said:

You can run toyo RA1s in a 255/50 that is approved from 7-9"

PROXES RA1 | Toyo Tires

And I think kumho is making a 265. But they will cost you a pretty penny. If you puss out and run a 245 please don't bother posting back up in the Max tire thread.

[spray2020]

Originally Posted by SicBastard

Straight up.... 16s are dead. That being said:

You can run toyo RA1s in a 255/50 that is approved from 7-9"

PROXES RA1 | Toyo Tires

And I think kumho is making a 265. But they will cost you a pretty penny. If you puss out and run a 245 please don't bother posting back up in the Max tire thread.

Really 255's on a 7" wide wheel? Do you have an example of this?

Im open to anything possible, as long as it is functional and safe.

[SicBastard]

Originally Posted by spray2020

Really 255's on a 7" wide wheel? Do you have an example of this?

Im open to anything possible, as long as it is functional and safe.

Yeah I have an example, it's called the engineering specs and reccomended wheel widths reported by toyo in the link I already provided.

[shiftdrift]

you could go bigger. an 8 rear could easily hold a 235 or 245. i wouldn't run such large sidewalls. the 225 is fitting for the 7.

[h2v7]

that advan looks nice

[spray2020]

Originally Posted by shiftdrift

you could go bigger. an 8 rear could easily hold a 235 or 245. i wouldn't run such large sidewalls. the 225 is fitting for the 7.

so like 225/50? for the 7" and what for the 8" 245? What type of tire would you suggest? I want something affordable that I can get in Australia for maximum performance that is street legal. Would there be too much flex in a 55 sidewall or is that just your preference? I like tall sidewalls.

Originally Posted by h2v7

that advan looks nice

thanks!

[shiftdrift]

If you like tall side walls stick with a 50.

[Flicktitty]

For conversation sake.

Epsilon mesh wheel. 15x7 0 offset.

225/50/15 BFG G-Force T/a Drag Radial.

[ka-titties]

Originally Posted by Flicktitty

For conversation sake.

Epsilon mesh wheel. 15x7 0 offset.

225/50/15 BFG G-Force T/a Drag Radial.

what kind of power do you make? do you hook on the street in first?

[Flicktitty]

Originally Posted by ka-titties

what kind of power do you make? do you hook on the street in first?

410whp 385Tq
2JZGTE 6265
15psi pump gas
automatic
untuned. no traction issues unless the weather is sub 35-40 degrees. haven't launched the car, we will see how the newer 3500 stall and AEM EMS and what not does to the car next season.

[spray2020]

is it considered a "no no" to run very wide tires if your vehicle doesn't have enough power to turn them over?

What are the negative effects of running to big/wide of a tire if the power isn't there?

Damage to the gearbox?

[SicBastard]

Originally Posted by spray2020

is it considered a "no no" to run very wide tires if your vehicle doesn't have enough power to turn them over?

What are the negative effects of running to big/wide of a tire if the power isn't there?

Damage to the gearbox?

Big wheels can get heavy! The relativly light 17x10.5 Halibrands I have weigh ~22 lbs. And the 275/17 falken tire I have on 'em weigh 28 pounds. That's 50 f*@%'n pounds per corner!

Compare that to the 225/15s I ran on the street in my miata. Not only are they almost 3" shorter (free lower CG without messing up your roll center) the 15x9 wheels weighed 12.8 lbs, and the tires only 22 for a total per corner of <35 lbs. Considering you have to run four of them you save 60 pounds [4x(50-35)=60] with the smaller wheel/tires per car. Oh and the 225 rubber cost almost half of what the 275s do!

Even if you just took a 60 pound brick out the back yo trunk, your 1/4 mile time should drop 0.06 seconds. But taking that same weight off of something that's recipricating (flywhee/crank/driveshaft/wheel/tire/etc.) and supposedly you can get 10 times the benefit! That's 0.6 seconds in the quarter mile. Huge! Even if you'r not a drag racer, everyone is into improved acceleration.

Lighter wheel/tires also can be accelerated up/down faster, letting dampers work more efficiently, thereby improving handling and traction.

So now that I'm done bashing big/heavy wheel/tires...
Talk to almost any experienced autocrosser or road race guy and a wider tire at one end of the car equals more grip at that end of the car, and that means lower lap times. Even the NA powered CSP autocross miatas are running 275s or wider now.

A good friend of mine had a Kouki with a bolt-on KA and two sets of wheels. A set of stock Mazda FD 16x8s (which are freakishly light) with sticky tires, and a baller set of hardparkin 18x10s. The car feels so much more sluggish with the good lookin wheels it's not even funny. Not only are the 16s lighter than the 18s, they are also shorter, which means you're getting a (free) gearing advantage. Putting on the 16s is like swapping in 4.33s for free!

So you have to balance the power you're making, the handling benefit you're actually going to utilize (even a set of sticky 225s will raise the handling limit of most cars beyond what can/should be exploited on the street), and the trade off in straight line acceleration for handling and braking with wider tires.

Unless it's a dedicated off-road race car, wider isn't always better. And if the car is underpowered that becomes even more true.

[Black R]

Originally Posted by Flicktitty

410whp 385Tq
2JZGTE 6265
15psi pump gas
automatic
untuned. no traction issues unless the weather is sub 35-40 degrees. haven't launched the car, we will see how the newer 3500 stall and AEM EMS and what not does to the car next season.

Untuned?!

Bcc or vpc?

Pm me bc myjzswap is down.

[SicBastard]

Here's the 225 Hoosiers RS305s that I used to run on my 14x7 team dynamics. If you actually measure the width of the slicks they were much closer to a street tire that's 235 or even 245. Going to a taller wheel will make this even easier. Just follow the tire manufacturers reccomended wheel widths and you can't go wrong. The 255 RA1s are also 50 series, so that extra sidewall allows you to go a little more extreme with narrow wheel pairings.

[shiftdrift]

I have a 275 on a stock auto ka. It doesn't Matter if you drive normal. Granted I have a mid frame 1jz vvti going in w/ r154.

[spray2020]

^
yeah I noticed on the data sheet for the toyo RA1's how the 225/50/r16's weigh 23 lbs, and the 255/50/r16's weigh 27 lbs.

I'm already thinking of using a heavy wheel (those 2 piece super advans I posted im guessing aren't very light) and I am wondering going from a 23lb tire to a 27 lb tire will be much of a difference? That is if I go with a toyo ra1. My silvia has the stock 1.8L ca18det in it, and is only being used as a street car at the moment.

Flicktitty's s13 that he posted, gives me some good thought as to ride height and tire size- but I am curious if that car has any issues with rubbing on the inner wheel wells? Which makes me wonder if running a similar size (225/50) or larger on a 16" will have rubbing issues. Then again comparing a stock ca18det to his motor/power setup is a big difference lol.

[Flicktitty]

Originally Posted by spray2020

Flicktitty's s13 that he posted, gives me some good thought as to ride height and tire size- but I am curious if that car has any issues with rubbing on the inner wheel wells? Which makes me wonder if running a similar size (225/50) or larger on a 16" will have rubbing issues. Then again comparing a stock ca18det to his motor/power setup is a big difference lol.

no inner tire rubbing on Megan coilovers. The car has 100% stock rear fenders, NO ROLL NO PULL on them. i'll take a few pics tomorrow of the coil/wheel spacing. and some more of the fitment.

[Flicktitty]

Originally Posted by Flicktitty

no inner tire rubbing on Megan coilovers. The car has 100% stock rear fenders, NO ROLL NO PULL on them. i'll take a few pics tomorrow of the coil/wheel spacing. and some more of the fitment.

here are the pics i promised.... the lighting wasn't on my side.

[95KA-Turbo]

Looks like you have a very slight rubbing issue with the outer part of the tire. Its crazy the rear end doesn't squat more.

[Flicktitty]

Originally Posted by 95KA-Turbo

Looks like you have a very slight rubbing issue with the outer part of the tire. Its crazy the rear end doesn't squat more.

it does rub VERY slightly, and i honestly think it rubs going through the corners and no so much on the straight pulls. Also i usually have a bunch of tools and extra stuff in the trunk so there is more weight over the rear. Car is aligned to stock specs. and the coils are set to full soft.

[|BOOST|]

nevermind...

[Flicktitty]

Looking and changing wheels, found some 17x10 + 22. Without a pull there is no real way to run a 275/40/17 is there? (with close to stock camber)

[Broadfield]

Originally Posted by Flicktitty

Looking and changing wheels, found some 17x10 + 22. Without a pull there is no real way to run a 275/40/17 is there? (with close to stock camber)

Not even close... unless you are in 4x4 mode. I ran the same exact specs as you desire... no pull, stock camber, 275/35-18... but on a 18x10 +44. And it still rubbed if I lowered it too much. You would be poking out almost an inch more over what I had. This is as low as I could go with the above setup: