[freesole]

Offset is key in this discussion. Great setup and look though, OP.

[2sporty]

I am kind of bewildered that nobody has mentioned what will happen to the handling at the limits. It's comical actually. It makes sense because everyone here drives an SUV and probably doesn't understand why tires come in the sizes that BMW chose. This particular car with that tire configuration will plow into a wall and it just won't turn at the limit

[Vettethret]

Originally Posted by 2sporty

I am kind of bewildered that nobody has mentioned what will happen to the handling at the limits. It's comical actually. It makes sense because everyone here drives an SUV and probably doesn't understand why tires come in the sizes that BMW chose. This particular car with that tire configuration will plow into a wall and it just won't turn at the limit

What's comical to me is you think I am looking for maximum Lateral G's in an SUV? I'll send your report back to Ben and H&R Corporate. I will relay your detailed Hypothesis and engineering prowess, with your completed report that their spacers are unsafe and "plowable into walls" at speed. The competitive SUV racing world has been put on notice!!!

[Arteezy]

Wow looks great

[spta97]

I like big butts and I cannot lie....

Very aggressive stance - looks great!

How are you finding the Super Sports? My gf has them on her Supra and they seem like a good tire, perhaps more track oriented though I have yet to get the PS4S.

[2sporty]

Originally Posted by Vettethret

What's comical to me is you think I am looking for maximum Lateral G's in an SUV? I'll send your report back to Ben and H&R Corporate. I will relay your detailed Hypothesis and engineering prowess, with your completed report that their spacers are unsafe and "plowable into walls" at speed. The competitive SUV racing world has been put on notice!!!

Obviously nobody is going to race X3Ms, as implied by my original post, but in an emergency maneuver you may see what happens! It's just Darwin's law at work here

[2sporty]

It's hilarious that you call a simple tire size change's affect on handling an "engineering hypothesis" as well. It's basic knowledge to even Honda ricers. Sorry that you've screwed up the handling of your car...

[Vettethret]

Originally Posted by 2sporty

It's hilarious that you call a simple tire size change's affect on handling an "engineering hypothesis" as well. It's basic knowledge to even Honda ricers. Sorry that you've screwed up the handling of your car...

You're not real bright, are you? I've had numerous 1K builds, and have changed out wheels/tires on 30+ vehicles over the years. But your internet expertise is appreciated!

[Vettethret]

Originally Posted by spta97

I like big butts and I cannot lie....

Very aggressive stance - looks great!

How are you finding the Super Sports? My gf has them on her Supra and they seem like a good tire, perhaps more track oriented though I have yet to get the PS4S.

I was amazed at the difference in ride quality going from the stock setup with the Contis, to these. These tires soak up imperfections MUCH better, and there is a noticeable improvement in grip as well. I'm not sure if that's due to the increase in contact patch, or compound, but I am definitely happy with these all the way around. I would buy them again.

[Vettethret]

Originally Posted by 95wildtt

What offsets are you using on the wheels?

Thanks,
John

I don't see of the offsets on my receipt, but will call and get those. I want to know as well. (They told me 5 months ago but I forgot)

[2sporty]

Originally Posted by Vettethret

You're not real bright, are you? I've had numerous 1K builds, and have changed out wheels/tires on 30+ vehicles over the years. But your internet expertise is appreciated!

LOL you obviously don't have any driving skills and have never driven at the limit.

Florida man puts huge ghetto rear tires with mismatched front tire on his BMW.

[2sporty]

Guys, I'm not saying Florida man can't do this to his own vehicle. Florida man can do whatever he wants. In fact, I'm happy for Florida man. Glad he did it.

You can too if you want to ruin the handling of your BMW and have it plow into a wall due to excessive understeer at the limit.

[allinon72]

Originally Posted by 2sporty

Obviously nobody is going to race X3Ms, as implied by my original post, but in an emergency maneuver you may see what happens! It's just Darwin's law at work here

Originally Posted by 2sporty

LOL you obviously don't have any driving skills and have never driven at the limit.

Florida man puts huge ghetto rear tires with mismatched front tire on his BMW.

By your posts you seem to imply that you're driving your car "at the limit" on public roads, which seems to be a way bigger safety issue than your fantasy understeer scenario.

[spta97]

Originally Posted by Vettethret

I was amazed at the difference in ride quality going from the stock setup with the Contis, to these. These tires soak up imperfections MUCH better, and there is a noticeable improvement in grip as well. I'm not sure if that's due to the increase in contact patch, or compound, but I am definitely happy with these all the way around. I would buy them again.

Great to hear!

I’m curious of the between the SS and the PS4S and why BMW did not chose to use the SS as “Toyota” did on the Supra.

If it were a build option, I likely would have gone with the PS4S as I was hoping to avoid change outs and I wouldn’t have missed any handling.

I get this is an M car but even the Corvette has the option for all seasons (though at the cost of not getting a performance package).

It seems we were stuck with thinner single season tires. Either go all out or compromise!

[kyleb350]

Looks great! You've answered the question I'm sure many are asking about what widths are possible.

[robopp]

Originally Posted by 2sporty

LOL you obviously don't have any driving skills and have never driven at the limit.

Florida man puts huge ghetto rear tires with mismatched front tire on his BMW.

It's an SUV dude! Driving it at the limit?! Get a race car for that, not an SUV. Darwin's law? Do you even know what that means because I don't think you do.

[thestimp]

Originally Posted by 2sporty

Guys, I'm not saying Florida man can't do this to his own vehicle. Florida man can do whatever he wants. In fact, I'm happy for Florida man. Glad he did it.

You can too if you want to ruin the handling of your BMW and have it plow into a wall due to excessive understeer at the limit.

Can confirm does not understeer and plow into anything, handles just fine at speeds because the weight is evenly distributed, rims don't weigh 500lbs and the suspension can carry the roll. I hope you're okay, it sounds like you're in your own world. Reach out if you need help.

[2sporty]

Originally Posted by thestimp

Can confirm does not understeer and plow into anything, handles just fine at speeds because the weight is evenly distributed, rims don't weigh 500lbs and the suspension can carry the roll. I hope you're okay, it sounds like you're in your own world. Reach out if you need help.

HAH yeah, it's physically impossible for it to not understeer with 325 rears and 285 fronts. Why do you think the car came stock with almost identical front and rear widths? Do you think BMW said "let's put some skinny rubber bands on so it doesn't have as much grip as it should"? Or "let's put skinny tires on for a few more mpg because this car already gets such bad mpg"?

Anyway, I should have expected this type of response. You guys are not drivers, 'nuff said.

[allinon72]

Originally Posted by 2sporty

HAH yeah, it's physically impossible for it to not understeer with 325 rears and 285 fronts. Why do you think the car came stock with almost identical front and rear widths? Do you think BMW said "let's put some skinny rubber bands on so it doesn't have as much grip as it should"? Or "let's put skinny tires on for a few more mpg because this car already gets such bad mpg"?

Anyway, I should have expected this type of response. You guys are not drivers, 'nuff said.

[HoJoRo]

With all due respect 2Sporty for my esteemed friends over in the USA , please provide your unequivocal knowledge of chassis dynamics with respect to say the Porsche 911 GT3 RS,
Granted a lighter car for sure , and a track focused weapon, with a rear engine format , a significant proportion of weight over the rear axle, yet in standard oem format it comes equipped with:

265/35 ZR 20 (F); 325/30 ZR 21 (R)

Which by your understanding and proposition, eclipses "Vetts" setup with respect to wide rears and significantly narrower fronts

Just to note (1995 - 2010) I have tracked most of the best UK Circuits , just my local circuit to complete the UK tour , this time in my X3MC LCi

[Gsavarese]

Cmon we can all agree it looks pretty nice

[thestimp]

Originally Posted by 2sporty

HAH yeah, it's physically impossible for it to not understeer with 325 rears and 285 fronts. Why do you think the car came stock with almost identical front and rear widths? Do you think BMW said "let's put some skinny rubber bands on so it doesn't have as much grip as it should"? Or "let's put skinny tires on for a few more mpg because this car already gets such bad mpg"?

Anyway, I should have expected this type of response. You guys are not drivers, 'nuff said.

You're right, all this engineering education and experience, certified racing driver, certified aerospace engineer, built several cars with similar specs and tracked my own X3M with similar spec, but some dude on the internet says its negated because I'm not a "real driver". you got us.