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08-16-2013, 09:50 AM | #23 | |||
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Build thread: http://www.1addicts.com/forums/showthread.php?t=748935
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08-18-2013, 09:38 AM | #24 |
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You can't apply the square is better equally to all cars. The 1 like all BMWs has a close to 50/50 weight distribution. For this case a square setup should give the most balanced scenario with zero under steer or oversteer. Suspension certainly factors into this but in general the square setup will give less under steer than the staggered setup.
For a Porsche 911 class car a square setup is not ideal simply because of the weight distribution of the car. It is not 50/50. I think it's about 60% in back but don't quote me. Interesting article on weight distribution here: http://www.caranddriver.com/features...11-gt3-feature
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'07 Z4MR '22 GT4 '18 GT3 '16 GT4, '16 M2, '14 X1, '13 135is, '06 330i, '03 323 Ci, '01 330i, '99 M3 (RIP), '96 318is, some non-BMWs
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08-30-2013, 02:23 AM | #25 |
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you're saying that a wider rear tire in a staggered setup will allow you to get on the power earlier on corner exit. but when you pick up the throttle earlier from the apex you accelerate hard the weight transfers off the front tires and you start pushing wide to such an extreme you have to lift off or risk going off track. ask me how i know and I'm running a square 225 setup on either ZII's or R1's even slow speed corners rear end grip is never the issue as the front end loses grip first under almost all circumstances. Running a square setup helps rotate the car on throttle instead of relying on the front tires to steer the car from apex out.
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08-30-2013, 02:52 AM | #26 | |
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08-30-2013, 10:32 PM | #27 |
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I'm quite jealous I''ll admit that my car is completely stock other than the tires and a Cobb AP running stage 1 aggressive. I'm happily surprised that the cars attitude can be so significantly altered with a few simple mods. right now my car loves to understeer the only way i can get the back end to lose grip and rotate is if i treat the throttle pedal as an off and on switch. when you say bushings are you talking about the rear subframe bushings?
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