What type of suspension for autocross

Boosted_N54 · 03-31-2014, 06:08 PM

What would be a good autocross track suspension set up for my 135i

cpt97m3 · 04-01-2014, 11:50 PM

What class SCCA street, STU, ASP, SM?

bonestockevo8 · 04-19-2014, 11:15 AM

and what tires (will depend on classing)? you'll likely want higher spring rates with grippier tires (meaning hoosiers or the like).

128Convertibleguy · 04-19-2014, 02:49 PM

Quote:

Originally Posted by cpt97m3

What class SCCA street, STU, ASP, SM?

Word.

Setting up for autocross is fundamentally different, if you want to be competitive. You get the rules for every class you conceivably want to run. Then you look through them carefully, understanding that your real competitors will be doing everything they're permitted to. If there's a mod allowed by the rules that you don't want to do, you move a class toward stock. Maybe the first rules you check are the allowed wheels/tires. If soft autocross tires are allowed, and you don't want to buy them, probably with a dedicated set of wheels, go to a class where they're banned, or be uncompetitive out of the gate.

03-31-2014, 06:08 PM	#1
Boosted_N54 Major 180 Rep 1,310 Posts Drives: 135i N54 Join Date: Apr 2008 Location: New York iTrader: (0)	What type of suspension for autocross What would be a good autocross track suspension set up for my 135i __________________ MHD Custom Flash (E85) [Jake@MOTIV] / Vargas Stage 2 Turbos / Fuel it LPFP Stage 3+/ Moitiv Port Injection/ MMP Turbo Inlets/ 3.5 Tmap Sensor / ER FMIC /ER Chargepipe HKS-BOV / AA Downpipes / Agency Power Race mid pipes / Berk Technology race exhaust / BMW SSK / BC Forged Whees Toyo R888 tires / KW Club sport coilovers+KW Camber Plates / Spec stg2+Spec SMSFW/ APR Wing GTC200
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04-01-2014, 11:50 PM	#2
cpt97m3 AutoXer 34 Rep 683 Posts Drives: 2009 135i Join Date: Apr 2008 Location: So Cal iTrader: (2)	What class SCCA street, STU, ASP, SM? __________________ 2009 135i, Alpine White, 6MT, M-Sport, iDrive, iPod/USB, Heated Seats, Premium Sound, BMW Assist
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04-19-2014, 11:15 AM	#3
bonestockevo8 Registered 0 Rep 1 Posts Drives: 1999 M Coupe Join Date: Apr 2014 Location: United States iTrader: (0)	and what tires (will depend on classing)? you'll likely want higher spring rates with grippier tires (meaning hoosiers or the like).
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