Wobbly at about 150mph

cleex024 · 05-06-2013, 05:00 PM

hey guys just wondering if any of you get a little wobble at about 150mph? Ive been doin some runs to about 150 and it gets a little wobbly...when i got an alignment went with front : -2.2 camber and 0 toe... rear : -1.8 and .05 total toe in.

wanted to go very neutral but i think this might be whats causing the straight line issue.

mike-y · 05-07-2013, 03:03 PM

typically, zero toe will give up some high speed stability for better turn in abilities. but at those speeds, aero (or lack of) can make a big difference also.

cleex024 · 05-07-2013, 03:10 PM

Quote:

Originally Posted by mike-y

typically, zero toe will give up some high speed stability for better turn in abilities. but at those speeds, aero (or lack of) can make a big difference also.

thanks for responding but i did get an alignment after putting in my rear upper camber arms and got an alignment with a little toe in about .05-.1 front and rear and there is a lot more stability so i guess that is the answer.

BUT after the couple runs to 140 i came to a stop light and accelerated hard and bam my camber arm stripped off and almost crashed...thankfully this didnt happen during my high speed run or i might be dead.

drove home extremely slowly and found out that i only had 1 thread into the tubes lol and it stripped out. gonna wait for longer tubes to retry this lol.

surlynkid · 05-16-2013, 06:16 PM

at those speeds anything can make it just a hair squirrelly. I was just at 140 a week and a half ago, and as I turned in I was only about getting the car settled in and straight. 150 is moving.

infidel335 · 05-16-2013, 06:18 PM

Quote:

Originally Posted by mike-y

typically, zero toe will give up some high speed stability for better turn in abilities. but at those speeds, aero (or lack of) can make a big difference also.

Aero is huge at those speeds! What have you done to the car in that regard?

cleex024 · 05-16-2013, 08:05 PM

Quote:

Originally Posted by infidel335

Aero is huge at those speeds! What have you done to the car in that regard?

in the aero department. ..guess I gotta look into it... but then again is not likei feel like the car is going to spin on me

05-06-2013, 05:00 PM	#1
cleex024 Lieutenant Colonel 107 Rep 1,529 Posts Drives: 2008 BMW 335i Coupe Join Date: Mar 2011 Location: Woodbridge iTrader: (2)	Wobbly at about 150mph hey guys just wondering if any of you get a little wobble at about 150mph? Ive been doin some runs to about 150 and it gets a little wobbly...when i got an alignment went with front : -2.2 camber and 0 toe... rear : -1.8 and .05 total toe in. wanted to go very neutral but i think this might be whats causing the straight line issue. __________________ Space Gray l 6MT l OSG LSD w/ VAC Race Diff Cover l Cobb e30 l Morr vs8.2 l UUC SSK w/ DSSR l VSRF Catless Dps l RPI Intercooler l CDV Removed l HID AE 8000k l ETS Catback l AST 5200 w/ Vorshlag Camber Plates l ER Dual Oil Coolers l Rear Camber and Toe Arms l K&N Drop In l Solid Tranny/Diff/Subframe Bushings l Bridgestone RE-11
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05-07-2013, 03:03 PM	#2
mike-y just another bmw douche bag 196 Rep 3,640 Posts Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (4)	typically, zero toe will give up some high speed stability for better turn in abilities. but at those speeds, aero (or lack of) can make a big difference also.
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05-16-2013, 06:16 PM	#4
surlynkid Major 119 Rep 1,470 Posts Drives: 2013 E92 M3 Join Date: Apr 2012 Location: League City, TX iTrader: (1) Garage List 2010 Porsche GT3 [0.00] 1988 Toyota 4Runner [0.00] 1995 Toyota T-100 4x4 [0.00] 2013 BMW M3 [0.00]	at those speeds anything can make it just a hair squirrelly. I was just at 140 a week and a half ago, and as I turned in I was only about getting the car settled in and straight. 150 is moving. __________________ Stoptech 380mm/355mm \| PFC08 / Pagid RS-29 \| Akrapovic EVO - CF tips \| Benvo Tune \| MS UDP \| AA air filter \| MCS 2-way with 700/1000lb springs \| Solid bushings and adjustable links \| RD front swaybar \| Apex EC-7 18x10 square 275/35-18 NT01 \| Turner Race Studs \| GT4 Brake Cooling \| GT4 Power Steering Cooling \| Alekshop Oil Cooler \| Performance Steering Wheel \| \| CF Spoiler \| Varis System 1 Full CF Diffuser \| Extended Paddle Shifters \| Schroth Quick Fit Pro \| Turner Steering Rack Stops \| Vorshlag Camber Plates
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