Dana Pants
Well-Known Member
- Joined
- Oct 11, 2018
- Threads
- 11
- Messages
- 973
- Reaction score
- 973
- Location
- Burlington MA
- First Name
- Dana
- Vehicle(s)
- 2018 GT PP1
Greetings,
I've spent probably more time than anyone trying to make a S550 handle well within the ruleset allowed by the SCCA F Street autocross class. You can find my various misadventures in the giant SCCA F-Street thread (and plenty of dissenting opinions).
If you are trying to dial out understeer and are cheap, here are some thoughts:
-There is a Ford service procedure to add camber to the front tires --> do this!
-While getting an alignment, make sure rear camber is about -1.7 deg, minimal rear toe-in, and give the front tires max negative camber and minimal toe-out
-Try a few more psi in the front tires
-I am running a stiffer rear sway bar with the stock front swaybar. If you look at the progression of swaybars in the ford Mustang lineup, usually higher performing models get bigger and bigger rear swaybars, so you are on the right track.
-As you get closer and closer to a neutral setup, everything starts to affect the balance of the car. Things like tire age, tire brand, weather, fuel level, ... so the only way to get the suspension tuning right is actual track work.
here is a video of my car with the rear strano swaybar on full stiff... I preferred this at the time, but went to the middle setting after changing tire model:
The video shows that the setup works, but isn't for the faint of heart.
I've spent probably more time than anyone trying to make a S550 handle well within the ruleset allowed by the SCCA F Street autocross class. You can find my various misadventures in the giant SCCA F-Street thread (and plenty of dissenting opinions).
If you are trying to dial out understeer and are cheap, here are some thoughts:
-There is a Ford service procedure to add camber to the front tires --> do this!
-While getting an alignment, make sure rear camber is about -1.7 deg, minimal rear toe-in, and give the front tires max negative camber and minimal toe-out
-Try a few more psi in the front tires
-I am running a stiffer rear sway bar with the stock front swaybar. If you look at the progression of swaybars in the ford Mustang lineup, usually higher performing models get bigger and bigger rear swaybars, so you are on the right track.
-As you get closer and closer to a neutral setup, everything starts to affect the balance of the car. Things like tire age, tire brand, weather, fuel level, ... so the only way to get the suspension tuning right is actual track work.
here is a video of my car with the rear strano swaybar on full stiff... I preferred this at the time, but went to the middle setting after changing tire model:
The video shows that the setup works, but isn't for the faint of heart.
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