06-05-2017, 09:53 PM | #1 |
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Tire and fender gap (and axle length)
Hi guys.
Chiming in for assistance from experts here. I drive F10 M5 LCI and everything is factory setting. The fender gap (space between tire and fender) is much greater in front than back. Almost 2x bigger in front. I understand BMW engineers did this on purpose, but to what purpose? I'm curious as to why it's set up that way. Is it to correct understeer? Also, the axle length (space between left and right tires) are also bigger in front than back. To what purpose? If I were to put a 10mm spacer in the back, how would this affect driving dynamics? Thanks guys. |
06-06-2017, 02:22 AM | #2 |
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The actual rake of the chassis is independent to the wheel arch clearance so they probably chose to avoid clearance problems for people mourning kerbs at speed at an angle - probably
Having said that perhaps the stock 5 base moving to the M5 had some restrictions. Most lower the front more than the rear this increases the rake and does affect the chassis balance. I prefer to lower front and rear similary, a personal thing Regarding track tyre sizes roll bars etc they all affect the balance a wider rear track will, all things being equal increase rear grip in cornering. There are other balance points regarding stability and more complex considerations All suspension set ups are a compromise. If you don't stray too far from stock you can usually get a more personal set up. There is nothing magical about the M5 settings just a good balance and compromise |
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06-06-2017, 07:37 AM | #4 |
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Thanks for your feedback.
So you'd go with both front and back spacers. With stock front fender gap being too big, spacers on front would actually makes it look worse then stock. If I were to do KW HAS SLEEVE kit to drop the fronts, then it would make sense. Some people say KW HAS on M5 are softer than stock, so I'm still deciding what to do... Thanks again. |
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06-06-2017, 08:05 AM | #5 | |
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CURRENT: 22' INDIVIDUAL M5| CHALK | TARTUFO | CCB | MPE | H&R | IND
GONE: 19' M5C| SINGAPORE GREY| ARAGON|VELOS VLS-06|H&R|iPE|IND|XPEL|CF|RADENSO GONE: 15' F10 M5|BSM|BLACK|VELOS VSS-S2|KW|AKRA|IND|CF |ESCORT 360|VELOS PIGGY GONE: 13' F10 M5|SG|BLACK|AKRA|KW|IND LONG GONE: 09' E60 M5|02' E39 M5 |
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06-07-2017, 09:58 AM | #6 |
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06-07-2017, 11:22 AM | #7 |
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06-07-2017, 05:29 PM | #8 |
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Here's my 14 comp pack with KW HAS and 10mm H&R spacers all around. I like the way it rides compared to stock CP springs. I couldn't stand the way the front was higher than the rear. I could have went with 12mm spacers but didn't want to worry about rubbing at all and I like the way this looks.
[IMG]Hers[/IMG]
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06-07-2017, 08:00 PM | #9 |
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Can't wait to put mine on... I hope our EDC does not prematurely die due to KW's different spring rates... |
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06-07-2017, 09:24 PM | #10 |
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CURRENT: 22' INDIVIDUAL M5| CHALK | TARTUFO | CCB | MPE | H&R | IND
GONE: 19' M5C| SINGAPORE GREY| ARAGON|VELOS VLS-06|H&R|iPE|IND|XPEL|CF|RADENSO GONE: 15' F10 M5|BSM|BLACK|VELOS VSS-S2|KW|AKRA|IND|CF |ESCORT 360|VELOS PIGGY GONE: 13' F10 M5|SG|BLACK|AKRA|KW|IND LONG GONE: 09' E60 M5|02' E39 M5 |
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06-07-2017, 09:25 PM | #11 |
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I'm on my 2nd. F10 M5 both with modified suspensions and zero issues with EDC. FWIW.
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CURRENT: 22' INDIVIDUAL M5| CHALK | TARTUFO | CCB | MPE | H&R | IND
GONE: 19' M5C| SINGAPORE GREY| ARAGON|VELOS VLS-06|H&R|iPE|IND|XPEL|CF|RADENSO GONE: 15' F10 M5|BSM|BLACK|VELOS VSS-S2|KW|AKRA|IND|CF |ESCORT 360|VELOS PIGGY GONE: 13' F10 M5|SG|BLACK|AKRA|KW|IND LONG GONE: 09' E60 M5|02' E39 M5 |
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06-07-2017, 10:53 PM | #12 |
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06-07-2017, 11:10 PM | #13 | |
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Thank you. I don't think I'll have any problems. My SA is aware of my suspension and didn't say anything against it.
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06-08-2017, 08:23 AM | #15 | |
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My 1st F10 M5 was a 13' MY and had some problems common with the Pre-LCI M5's. When the lease was up moved to an LCI M5. I now have a 15' LCI and zero issues.
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CURRENT: 22' INDIVIDUAL M5| CHALK | TARTUFO | CCB | MPE | H&R | IND
GONE: 19' M5C| SINGAPORE GREY| ARAGON|VELOS VLS-06|H&R|iPE|IND|XPEL|CF|RADENSO GONE: 15' F10 M5|BSM|BLACK|VELOS VSS-S2|KW|AKRA|IND|CF |ESCORT 360|VELOS PIGGY GONE: 13' F10 M5|SG|BLACK|AKRA|KW|IND LONG GONE: 09' E60 M5|02' E39 M5 |
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