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      08-12-2016, 03:29 PM   #1
ctgeorge
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Swapped my 513m for 666m wheels, Weight Comparison

I'll admit I wasn't impressed with the 666m wheels when BMW released pictures of the ZCP package early this spring. I was a firm believer that the 513m was the best looking wheel. As time went on saw the 666m at the NYC autoshow and found they look much better in person. Saw them again at various car shows and decided I wanted a pair.

Living in the Northeast where I'm required to run a dedicated winter set for at least 4 months, I really didn't want to mount a cheap set of cast wheels from the Tire Rack. So decided I'll use the 513m as my winter set and swap the PSS on for occasional track days. I still love these wheels.

As nice as these 666m are, they are boat anchors, weighing roughly 30lbs more than the 513m. But then again I guess that's to be expected as you have more rubber and alloy. I see now why the ZCP has 19 more hp, to make up for this extra unsprung weight.

Car has Eibach springs and Rogue Engineering 12mm spacers all around.

Before



After



Here it is on a level surface, as my driveway isn't



I believe there is a sticky thread on the 513m weight, but here they are compared to the 666m

Front



Rear



Front



Rear

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      08-12-2016, 06:32 PM   #2
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that is heavy. how about the 19s? does anyone know how much they are with tires on?
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      08-12-2016, 06:34 PM   #3
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Good info, thanks for sharing...IMHO your car looks much better with the zcp wheels!!
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      08-12-2016, 07:08 PM   #4
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Quote:
Originally Posted by ctgeorge View Post
I'll admit I wasn't impressed with the 666m wheels when BMW released pictures of the ZCP package early this spring. I was a firm believer that the 513m was the best looking wheel. As time went on saw the 666m at the NYC autoshow and found they look much better in person. Saw them again at various car shows and decided I wanted a pair.

Living in the Northeast where I'm required to run a dedicated winter set for at least 4 months, I really didn't want to mount a cheap set of cast wheels from the Tire Rack. So decided I'll use the 513m as my winter set and swap the PSS on for occasional track days. I still love these wheels.

As nice as these 666m are, they are boat anchors, weighing roughly 30lbs more than the 513m. But then again I guess that's to be expected as you have more rubber and alloy. I see now why the ZCP has 19 more hp, to make up for this extra unsprung weight.

Car has Eibach springs and Rogue Engineering 12mm spacers all around.

Before



After



Here it is on a level surface, as my driveway isn't



I believe there is a sticky thread on the 513m weight, but here they are compared to the 666m

Front



Rear



Front



Rear


Realistically, can you notice a difference in the increased unstrung weight? Turn In, braking, acceleration perceptibly affected?
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      08-12-2016, 07:43 PM   #5
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I still can't get over the truck tire aspect ratio the 18's have. Yikes. Personally I think the 419's are the best looking of the bunch.
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      08-12-2016, 08:13 PM   #6
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Quote:
Originally Posted by F80Dreamer View Post
Good info, thanks for sharing...IMHO your car looks much better with the zcp wheels!!
Thanks my man.

Quote:
Originally Posted by jaybird124 View Post
Realistically, can you notice a difference in the increased unstrung weight? Turn In, braking, acceleration perceptibly affected?
I just installed these today and only drove a few miles so the jury is still out how the additional unsprung weight effects the ride. My guess not much.

Quote:
Originally Posted by Ian1973 View Post
I still can't get over the truck tire aspect ratio the 18's have. Yikes. Personally I think the 437s are the best looking of the bunch.
I think I'm the minority who finds the 437m the worst looking out of the three. Especially the black. But hey it's just my opinion.

Last edited by ctgeorge; 08-13-2016 at 02:16 PM..
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      08-12-2016, 11:11 PM   #7
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Quote:
Originally Posted by ctgeorge View Post
Thanks my man.



I just installed these today and only drove a few miles so the jury is still out how the additional unsprung weight effects the ride. My guess not much.
Keep us posted.
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      08-12-2016, 11:42 PM   #8
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Thanks for posting the complete weights...pretty sure these are the first actual numbers we've seen for the 666Ms.
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      08-13-2016, 09:12 AM   #9
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Thanks for sharing. Good info.

Ouch, that's quite a bit of unsprung weight added to each corner .

Car looks great though
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      08-13-2016, 09:16 AM   #10
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Quote:
Originally Posted by Ian1973 View Post
I still can't get over the truck tire aspect ratio the 18's have. Yikes. Personally I think the 419's are the best looking of the bunch.
Quote:
Originally Posted by ctgeorge View Post
I think I'm the minority who finds the 419m the worst looking out of the three. Especially the black. But hey it's just my opinion.
What are 419M ?

I guess you mean 437M
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      08-13-2016, 09:34 AM   #11
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Quote:
Originally Posted by CanAutM3 View Post
What are 419M ?

I guess you mean 437M
LOL my bad, 437M
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      08-13-2016, 10:43 AM   #12
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Yes of course, duuuhhhhhh. 437s.
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      08-14-2016, 01:51 AM   #13
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Unreal! I almost bought a used set of the 666's..I was convinced they had to be decently light since they were with the Comp package. Thankfully i didn't..However the 666's do look cool but no thank you please
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      08-15-2016, 10:28 PM   #14
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Any additional observations on differences in handling, braking and acceleration?

I have Eibachs and 513Ms with 12mm spacers. It looks better than stock, but the thick sidewalls aren't my thing. I was looking into 666Ms as well.
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      08-15-2016, 10:58 PM   #15
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I'm going from 666 comp wheels to 513. Go figure Questions how does the diameter works out are they almost the same size. Do you have any issues with traction control. Thanks.
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      08-15-2016, 11:16 PM   #16
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Quote:
Originally Posted by 8_is_enough View Post
Any additional observations on differences in handling, braking and acceleration?

I have Eibachs and 513Ms with 12mm spacers. It looks better than stock, but the thick sidewalls aren't my thing. I was looking into 666Ms as well.
The ride is obviously firmer due to less sidewall, but not overwhelming. Car feels slightly more planted during hard cornering, the wider rubber contributes to this.

I feel no difference in braking or acceleration. Pretty happy in general with my purchase.


Quote:
Originally Posted by Sergm3 View Post
I'm going from 666 comp wheels to 513. Go figure Questions how does the diameter works out are they almost the same size. Do you have any issues with traction control. Thanks.
Diameter on both sets are roughly the same at 26"
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      08-16-2016, 12:39 AM   #17
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Quote:
Originally Posted by ctgeorge View Post
The ride is obviously firmer due to less sidewall, but not overwhelming. Car feels slightly more planted during hard cornering, the wider rubber contributes to this.

I feel no difference in braking or acceleration. Pretty happy in general with my purchase.
Good to know, thanks!
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      08-25-2016, 10:01 AM   #18
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Looks clean on your car with the 666Ms! Did you buy them off an competition owner?
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      08-25-2016, 10:24 AM   #19
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Looks clean on your car with the 666Ms! Did you buy them off an competition owner?
Thanks my man. Bought the set brand new off a guy on Ebay
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      08-25-2016, 11:03 AM   #20
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Wheel has to sustain an exponential increase in force applied to it from the axle and impacts applied to it from a much reduced sidewall. Hard to do that without gaining weight.
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      08-25-2016, 04:56 PM   #21
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Nice! Any pics of the flushness?
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      05-28-2017, 07:11 AM   #22
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Op is your car lowered? Do you use spacers? Do you find the ZCP wheels to be sticking out more vs stock wheels you had? I mean 666 are wider so wondering if the added width goes inside or outside the wheel well.
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