BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) - View Single Post - Does added negative toe (in) increase traction at rear?

kb135 · 02-15-2013, 09:19 PM

Did some weighing:

Turns out
Stock 261M in 18x8.5 with 255/35/18 MPSS = 23.2kg
VMR V710 19x9.5 with 255/30/19 MPSS = 23.2kg
Not an error with scale. I triple-checked these. Just co-incidence.

So i guess tightening up my rear end with subframe bushings and altering camber to -2.0* has given me much more traction on rear? Because its quite hard to break traction in 2nd gear in a straight line, and slight to moderately difficult in 1st, from a roll that is. Used to spin like mad in 1st and break traction at 40km/h in 2nd prior to rear end mods. Logs show it's boosting fine...

. Will still check for boost leaks anyway, and maybe attend a dyno day and compare. Butt dyno says all is well though

Thats what matters most right?

02-15-2013, 09:19 PM	#7
kb135 Private First Class 21 Rep 140 Posts Drives: 135i Space Grey Join Date: Dec 2011 Location: Perth, Western Australia iTrader: (0)	Did some weighing: Turns out Stock 261M in 18x8.5 with 255/35/18 MPSS = 23.2kg VMR V710 19x9.5 with 255/30/19 MPSS = 23.2kg Not an error with scale. I triple-checked these. Just co-incidence. So i guess tightening up my rear end with subframe bushings and altering camber to -2.0* has given me much more traction on rear? Because its quite hard to break traction in 2nd gear in a straight line, and slight to moderately difficult in 1st, from a roll that is. Used to spin like mad in 1st and break traction at 40km/h in 2nd prior to rear end mods. Logs show it's boosting fine... . Will still check for boost leaks anyway, and maybe attend a dyno day and compare. Butt dyno says all is well though Thats what matters most right? Attached Images
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