s5 rx7 front 4pot calipers and disks, standard sprinter single pot rear brakes, original booster diafragm with a s5 rx7 master cylinder.
n e who driving along the other nite the brakes started to stick, this was with hardly nay boosting. n e who coming home from work tonight i took it up to 4000rpm which is probly about 3/4-full boost, and it basically felt like as soon as i boosted the brakes were applying themselves. so i was like wat the hell. struggled up the next hill to the point were i couldnt drive.
my theory: i still have the original 1-way valve in the vacuum line. this is suited to a carby 1200cc producing no manifold pressurisation. n e who back to my theory, wen the turbo spools and pressurises the plenum, the pressure basically pushes past the 1 way valve and pressurises the booster diafragm basically applying the brakes. so what i would b experiencing is wen the turbo boosts it applys the brakes by way of pressure displacement into the booster diafragm?
questions: how do u get around this? can i buy a 'turbo 1-way valve' built to hold off larger pressures? i have another 1 of those valves lying around, if i put 2 of them in, in 'series' do u think it would hold off the pressure?
could i b pointing the finger at the wrong donkey and its actually a faultof something else?
thanx in advance for any help
