Grand Am Series
Join Date: Aug 2010
Location: District of Columbia
Really nice update.
I used the big front bar approach for a while (Hotchkis 32mm hollow 560#/", stock is 21mm solid 415#/"). Seemed to work pretty well on the soft stock springs and even on my 400# springs with no camber help. However after swapping in the stock bar, camber plates, and stiffer 550# springs; it became abundantly clear I was doing something wrong when I got smoked (by more than a second) at an event by a heavier 3 with less power on the identical suspension (same brand OTS coilovers, camber plates, giant RSB, similar 140TW tires) except he was on 400# front springs. After a few discussions and calculators, the conclusion was my front needed to be softer. Went back to 400#...better. Then to 350#...even better. I immediately went from pax-ing 15th to fighting for top pax at every event. To me it doesn't feel comfy or fast most of the time, but the clock and results ain't lyin'!
I think the car can benefit with a bigger FSB when on soft springs (something less than 300ish pounds) even with the camber, but these cars seem to thrive on an autocross course with soft front ends.
2006 Titanium Gray Mazda3
#23 STF WDCR SCCA
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