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| 04-29-2015, 12:40 AM | #1 |
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Captain
 
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Drives: 2011 135i M Sport
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255/40 17 Side wall Flex question
Hey guys, I am asking for people's experience here. Having the hardest time deciding on a perfect track wheel, no autox. At the moment I wanted to run 255 35 18 RS3 on my car but I also want to run a 255 40 17 RS3 because the opportunity to have 17" wheels has come up. Anyone experience bad sidewall flex and loss in turn in performance with a taller sidewall? Any feedback is appreciated.
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BMW Performance Kidney Grille, CF Lip Spoiler, CF Diffusser, Blackline LCI Tailights, Magnaflow Full Exhaust, BMS Intake, Jb4 w/ E85, Meth Injection, BMS DP, VRSF 5" Intercooler, CP-E Charge Pipe, KW CS Coilover, M3 Subframe Bushings, VMR VB3 Wheels, Stage 2 Fuel Pump, M3 Control Arms, Dinan Camber Plates, Pure Stage 2.
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| 04-29-2015, 09:25 AM | #3 | |
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Captain
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Drives: 2011 135i M Sport
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Quote:
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BMW Performance Kidney Grille, CF Lip Spoiler, CF Diffusser, Blackline LCI Tailights, Magnaflow Full Exhaust, BMS Intake, Jb4 w/ E85, Meth Injection, BMS DP, VRSF 5" Intercooler, CP-E Charge Pipe, KW CS Coilover, M3 Subframe Bushings, VMR VB3 Wheels, Stage 2 Fuel Pump, M3 Control Arms, Dinan Camber Plates, Pure Stage 2.
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| 04-29-2015, 11:15 AM | #4 | ||
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Brigadier General
 
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Quote:
Honestly, if you want responsive turn in, don't get RS3s. The RS3s feel like mush whatever size you go with. But they are quick. A stiffer sidewall, like Z2* or RE71R, I'd look into those in a 255 size. It'll be much more responsive Just my experiences |
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| 04-29-2015, 12:29 PM | #5 |
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California-bound
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I run a 17x8.5 255 RS3 setup, track and autoX, it's fine, provided you have sufficient roll stiffness and camber in the front end. RS3 ride their shoulders to death otherwise.
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| 04-29-2015, 01:26 PM | #6 | |||
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Captain
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Drives: 2011 135i M Sport
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Quote:
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BMW Performance Kidney Grille, CF Lip Spoiler, CF Diffusser, Blackline LCI Tailights, Magnaflow Full Exhaust, BMS Intake, Jb4 w/ E85, Meth Injection, BMS DP, VRSF 5" Intercooler, CP-E Charge Pipe, KW CS Coilover, M3 Subframe Bushings, VMR VB3 Wheels, Stage 2 Fuel Pump, M3 Control Arms, Dinan Camber Plates, Pure Stage 2.
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