Message for HOOJ (or anyone else with really rolled fenders)

[KarlSpackler]

I wrote you this PM and your damn box is full.....

Hey man,

I consider myself a fairly wheel savy person, but i wanted another opinion first and since you have a bunch of flair and roll on your car as well; you should be a good fit for my question.

I bought a set of BBS Design 5000's off of ebay for 150$( lips all bent) 5x120 et40.

I am having a set of kodiak lips made for the wheels and was wondering how wide i could go? The stock size is 17x8.

My question is if i could fit 17x10 in the rear with that offset. You could judge by your car b/c we have almost the same amount of flair and roll ( you have more i know) but you get the idea.

I will try and run 17x9 or 17x9.5 up front if not 17x10.

Looking to run 245/40/17 up front and 255/40/17 (or bigger) in the back.

What do you think. I have the lips off and i am just waiting for some final imput b4 i order the lips.

[ChaseBimmer]

Why go with a 10" wide wheel in the rear and only wrap it in 255? If your going to get that wide of a wheel, add some more rubber! I have 18x9 w/ 255and I'd love to get some more tire on the ground, but my fenders are rolled enough and they still rub!

[KarlSpackler]

For that reason exactly... I cannot run anything bigger than a 255 or it will rub like mad

[ChaseBimmer]

Then why go with that wide of a wheel? Why not just go with 17x9?

[EEEEeeee36]

Then why go with that wide of a wheel? Why not just go with 17x9?
For the MAD BIG lip I assume. I think it would look HAWT - Euro style with the stretched tire ;)

PICS WHEN DONE PLEASE!! :D

[KarlSpackler]

For the MAD BIG lip I assume. I think it would look HAWT - Euro style with the stretched tire ;)

PICS WHEN DONE PLEASE!! :D

Thank you;) And a 255 on a 10" wide tire is not stretched...

That is why i am looking for opinions. If i can go 265 i will

[cmongoose]

Thank you;) And a 255 on a 10" wide tire is not stretched...

That is why i am looking for opinions. If i can go 265 i will

hey whats up mang, I just bought a set of 17X9.5 bbs rs wheels and I am having some 2.5 inch kodiak lips made for the rears, so they will be 17X11. They have a high offset of 55et, I have already test fit them and they fit fine. I will be putting 235's on the rears so they will have a nice stretch. The VW guys do it alot and I have gotten most of my info from vwvortex.com, here is a link to pretty much everything you will need to know...http://forums.vwvortex.com/zerothread?id=2234638

[KarlSpackler]

hey whats up mang, I just bought a set of 17X9.5 bbs rs wheels and I am having some 2.5 inch kodiak lips made for the rears, so they will be 17X11. They have a high offset of 55et, I have already test fit them and they fit fine. I will be putting 235's on the rears so they will have a nice stretch. The VW guys do it alot and I have gotten most of my info from vwvortex.com, here is a link to pretty much everything you will need to know...http://forums.vwvortex.com/zerothread?id=2234638

Thanks man... i have been a member on VWvortex or ohhh about 5 years now. I am fully aware of streching tires. I am not looking to stretch a 195 across my 10" wheel as i have lotsa power and need more tire on the road. I am going to be doing it and if doesnt work... well i will roll and flair until it does!

[KraZy007]

You're going to have to run a very high offset to fit 17x10 in the back. From my calculations, 17x10 with a 55mm offset will work if you roll and pull your rear fenders. I had 18x9 with a 42mm offset on my M3 which needed rolling and pulling of my rear fenders to fit. 10 in wide rim would mean a 12.5mm increase in width in both inner and outter directions, which means you'll need 54.5mm offset to clear the fender. However, you now have to worry about the inner area, namely the exhaust. I don't know how much clearance you'll have before the inner part of the rim hits the exhaust canister. You could go with an exhaust with a small canister, like the HKS exhaust or the supersprint...that would probably give you more room to play with.

btw, why do you need so much rubber? Just cuz? I'm just curious.

[KarlSpackler]

Well i plan on building the wheels. And using trial and error. I have a set of 255/40/17's sitting in my garage to work with to test out. My fenders have been rolled almost flat as well as some minor cutting of the lining inside. They have also been pulled quite a bit. I did not do the fender mods myself, but i was able to compare them to a stock 95 m3 and there is a HUGE difference (atleast 1 1/4") plus the inner lining is thinned out plus the cutting.

If that does not work, i will run a 245, i know i can do that.

And who doesnt want more rubber on the ground? The car will be autox and tracked so the more traction the better. Plus running low boost (8psi)my car made 310 rwhp. It is a stage 2 kit meant for 11.5 psi which would boost hp around the 380 + range

[97alpineM3]

Just so you know... I have 265's in the rear on mine... Rolled and hammered fenders.

Les

[KarlSpackler]

Just so you know... I have 265's in the rear on mine... Rolled and hammered fenders.

Les

Nice.... oh yea, i forgot to mention... I have a friend who owns a fender roller so if need be, we can roll some more.

[KraZy007]

Well i plan on building the wheels. And using trial and error. I have a set of 255/40/17's sitting in my garage to work with to test out. My fenders have been rolled almost flat as well as some minor cutting of the lining inside. They have also been pulled quite a bit. I did not do the fender mods myself, but i was able to compare them to a stock 95 m3 and there is a HUGE difference (atleast 1 1/4") plus the inner lining is thinned out plus the cutting.

If that does not work, i will run a 245, i know i can do that.

And who doesnt want more rubber on the ground? The car will be autox and tracked so the more traction the better. Plus running low boost (8psi)my car made 310 rwhp. It is a stage 2 kit meant for 11.5 psi which would boost hp around the 380 + range

Gotta. Well, if there's 1 1/4" more to work with, then that equates to about 32mm of extra room, in which case a 17x10 with an offset of as low as 23 would work. Dang. I think you're good to go...no need to worry about hitting the exhaust.

[KarlSpackler]

Gotta. Well, if there's 1 1/4" more to work with, then that equates to about 32mm of extra room, in which case a 17x10 with an offset of as low as 23 would work. Dang. I think you're good to go...no need to worry about hitting the exhaust.

:buttrock

[HOOJ]

Hey man, just read your post. Do you still need my help?

With 9.5" of rim width at et40 your outer edge of the wheel will be at the same point as a Style 5 wheel at 8" et20, which basically means if you run a 245/35-18, you'll have no issues in the rear unless you have serious tucking, in which case I'd recommend some 15mm spring pads.

The 10" width will give you the german look in the rear and force you to go to 255-30-18 for the rear.

[HOOJ]

Just noticed you are running 17s. With 17s, the widest you will be able to go on any wheel is 255-40-17 because they don't sell anything wider in a street tire in the USA, at least, not without stepping up the sidewall height, which you do NOT want.

So, basically 17x9.5" et40 w/ 245-40-17 stretched would be the only way to go. 255-40-17 might give you issues at that offset.

[96cosmosM3]

You're going to have to run a very high offset to fit 17x10 in the back. From my calculations, 17x10 with a 55mm offset will work if you roll and pull your rear fenders. .

No way that will fit. +55 10" wide wheel would rub the inner fender, heck, I dont even think you could bolt on the wheel without the rim making contact with the inner fender.

BBS CH 18x10 in e36 fitment is +40.

[96cosmosM3]

And who doesnt want more rubber on the ground?

Techno550

[Mr. Maboomba]

I had some 235's stretched onto 9" wide wheels at one point because I was reusing tires from previous, narrower wheels. I hated the look. The stretched tire look is pretty shitty.

[techno550]

And who doesnt want more rubber on the ground? The car will be autox and tracked so the more traction the better. Plus running low boost (8psi)my car made 310 rwhp. It is a stage 2 kit meant for 11.5 psi which would boost hp around the 380 + range
Everyone wants more rubber on the ground, right? Wider tires won't accomplish that though. Same rubber on the ground as the slightly more narrow counterpart, but with a wider... and shorter... contact patch.

[B.Watts]

If you want more rubber on the ground, you have two options:

1) Lower your tire pressure

2) Add weight to the car

As Techno said, putting bigger tires on the car will just change the shape of your contact patch, not the size.

[KarlSpackler]

Thanks guys. They are being ordered and will be put on with pics in a month or so ;)

[HOOJ]

As Techno said, putting bigger tires on the car will just change the shape of your contact patch, not the size.

This is somewhat correct when comparing SUV tires and performance tires.

http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=10

But when comparing high performance tires with same inflation pressure, sidewall height, but different widths, it falls a bit short.

Wider tires provide a wider contact patch, needed for proper friction coefficient increase and thus better transversal acceleration grip.

[bennyfizzle]

way to bring the thread down with technical jargon :rolleyes

jk :)

[techno550]

This is somewhat correct when comparing SUV tires and performance tires.

http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=10

But when comparing high performance tires with same inflation pressure, sidewall height, but different widths, it falls a bit short.

Wider tires provide a wider contact patch, needed for proper friction coefficient increase and thus better transversal acceleration grip.
LOL, don't start with me. Just search for the info you'd like on tires and my username. For the sake of saving time here, reread the link you posted. It says that the wider low profile tire has a shorter and wider contact patch, and that the high profile tire has a longer narrower contact patch. It NEVER says that the contact patch is larger/smaller.

[HOOJ]

It says that the wider low profile tire has a shorter and wider contact patch, and that the high profile tire has a longer narrower contact patch. It NEVER says that the contact patch is larger/smaller.

Exactly. You almost got it, but not quite. Let me nudge you along.

When both tires are of equal sidewall height equal inflation pressure and are low profile, and the only difference is the section width (such as 225/40-18 compared to 255/35-18), the only change to the contact patch is it's width. It's length stays the same.

The original poster didn't ask how a change from 225/50-16 would impact the contact patch when going to a 285/30-18. He simply wanted offset information, so I'm not really sure why you shot off on a tangent there, but there's your explanation anyhow.

[techno550]

Exactly. You almost got it, but not quite. Let me nudge you along.

When both tires are of equal sidewall height equal inflation pressure and are low profile, and the only difference is the section width (such as 225/40-18 compared to 255/35-18), the only change to the contact patch is it's width. It's length stays the same.

The original poster didn't ask how a change from 225/50-16 would impact the contact patch when going to a 285/30-18. He simply wanted offset information, so I'm not really sure why you shot off on a tangent there, but there's your explanation anyhow.
LOL, talk about "missing it".
when going from a 225/40-18 to a 255/35-18 the contact patch gets wider AND SHORTER. contact patch area stays the same.
yes, i said it stays the same.
I'll say it again. when going to a wider tire, the contact patch gets wider and shoter... and its area stays the same.

that clear enough?

[Young Version]

LOL, talk about "missing it".
when going from a 225/40-18 to a 255/35-18 the contact patch gets wider AND SHORTER. contact patch area stays the same.
yes, i said it stays the same.
I'll say it again. when going to a wider tire, the contact patch gets wider and shoter... and its area stays the same.

that clear enough?

Could you please elaborate on this? I'm not flaming, I'm genuinely curious. Say I want to go from 225/45/17s in the front and 245/40/17s in the rear to 235/40/17s all around. Would I not notice a difference in handling?

The tires will be mounted on staggered LTWs.

[black_box]

I think what that means is you'd have a relatively wider contact patch up front (also shorter) and a relatively thinner (and taller) contact patch in the rear. Width of the contact patch corresponds to the max cornering force, the height (depth?) of the patch corresponds to the max acceleration and braking force. So the car would tend to oversteer more (or understeer less).

has anyone done a comparison between braking and cornering with different size tires? i'll have to dig thru techno's posts.