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      05-05-2008, 02:50 PM   #1
G35Coupe
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What widths for 20" HREs?

What would be the ideal widths for a set of 20" HREs? Based on conversations with HRE, I can go up to 20x9 in the front and 20x11 in the back for an E92 M3 coupe, but I think this might be too aggressive. Should I do 20x8.5 F and 20x10.5 R? Would the larger widths severely add to understeer?

I am planning on running Michelin PS2s in 245/30/20 F and 295/25/30 R. Would it looked stretched with a 20x9 F and 20x11 R?

Thanks in advance for your help.
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      05-05-2008, 05:45 PM   #2
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Quote:
Originally Posted by G35Coupe View Post
What would be the ideal widths for a set of 20" HREs? Based on conversations with HRE, I can go up to 20x9 in the front and 20x11 in the back for an E92 M3 coupe, but I think this might be too aggressive. Should I do 20x8.5 F and 20x10.5 R? Would the larger widths severely add to understeer?

I am planning on running Michelin PS2s in 245/30/20 F and 295/25/30 R. Would it looked stretched with a 20x9 F and 20x11 R?

Thanks in advance for your help.
The proper size is 20x9 F 20x10.5 R - that is the spec we are going with for a customers M3 and recommended by HRE as well. 11s will not fit.

20x8.5 F 20x10.5 R is a big width difference and may cause unwanted understeering which might compromise the handling performance.
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      05-05-2008, 08:13 PM   #3
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HRE has confirmed that 20x11 will fit in the rear. How much understeer will be caused by using a 20x9 F 20x11 R setup versus a 20x9 F and 20x10.5 R setup? I thought I even saw someone on the forum running 20x8.5 F and 20x11 R.
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      05-05-2008, 09:20 PM   #4
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Quote:
Originally Posted by Lewis@MWDesign View Post
The proper size is 20x9 F 20x10.5 R - that is the spec we are going with for a customers M3 and recommended by HRE as well. 11s will not fit.

20x8.5 F 20x10.5 R is a big width difference and may cause unwanted understeering which might compromise the handling performance.
Is that the setup I'm going with as well?
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      05-06-2008, 12:30 AM   #5
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Originally Posted by rich662 View Post
Is that the setup I'm going with as well?
Richard,

The DPE LS series is a 2pc construction and its only available in 20x8.5 F 20x10 R as a standard size.

The 20x9 width is only if people have the option to opt for the 10.5 in the rear.
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      05-06-2008, 02:24 AM   #6
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icic. out of curiousity's sake, how would the 8.5/10 handle compared to the 9/10.5
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      05-06-2008, 05:45 AM   #7
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Quote:
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icic. out of curiousity's sake, how would the 8.5/10 handle compared to the 9/10.5

plus one...
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