Originally Posted by
Woulvesbaine
I was just at WCRC this weekend and I just bought a b4.1 converted to b4.2. There is a guy who works the counter, I think Joe (not Hector), there on Sundays that races a b4 and b44. When he's not too busy at the counter, ask him to take a look at your car. I also agree with the other posters that you should look at your slipper.
He, or any of the other seasoned racers can help you learn how to check your slipper. I'm still a little rusty on things or I would offer. There are just better people that show up at the track to go get a little help from. Sorry if you're a seasoned racer and this is old hat for you.
If I recall correctly, many peopple there race Green (F)/ White (R) or Black (F) / Green (R). 30 AE front/ 27.5 Rear. 1.6 x 2 pistons. Someone will correct me if I'm wrong.

That's what I run there more or less, except I run green/green 32.5/30