Quote:
Originally Posted by Hoosier Daddy
It's only a concern if it does have significant deflection. I have history with the old 4 and 6 piston NASCAR intermediate Brembo calipers that had no bridge...The only problem we ever had was a clip failure one time where the pads flew out on a pit stop - same issue could happen with these Club Racing kits. I bet Hayworth might have some data on the old NASCAR intermediate calipers vs the new bridged versions. I have seen test data on their RC calipers, so it could be out there... Might not be 1:1 comparison with the Club Racing calipers but could be a rough way to gauge the importance.
Rear upgrade easily solves the balance problem. The two piston rears available in the Brembo catalog have the same mounting offsets as the production 2 pistons that are on the WRX Stis (28 mm) - choose your bore (36, 38, 40, and 42 mm). They are less than $300 each. And rotors are cheap! BTW, who builds a 'race car' without a bias adjuster? 
EDIT: the rears are 500 each... |
Cool, wasn't sure how serious your build will be.
Seems like you've got a good background already with brakes and specifically brembo. Please keep us posted on what you end up with!
- Andy