21-05-2014, 09:52 PM
Flip boost can upside down and put on actuator, but there are serious disadvantages to this as the vanes are permanently in the maximum boost position until up to pressure, cruising this causes high exhaust manifold pressure and high inlet pressure - not good for the engine, things do get hot if cruising and you need to be wary of EGT doing so.
Other than that, you've not got many options, there's people who have tried springs, actuators, shims, cables to make some sort of "mechanical" solution, but always ends up being a total bodge and never working right - remember every single time you adjusted fuel or wanted slightly more boost, you've got to change ALL the springs, shims, spring preload etc for a 1psi gain in boost... Nightmare.. PLD/Arduino really IMHO these days is the only way to go for a car you actually drive and be reliable as hell
Other than that, you've not got many options, there's people who have tried springs, actuators, shims, cables to make some sort of "mechanical" solution, but always ends up being a total bodge and never working right - remember every single time you adjusted fuel or wanted slightly more boost, you've got to change ALL the springs, shims, spring preload etc for a 1psi gain in boost... Nightmare.. PLD/Arduino really IMHO these days is the only way to go for a car you actually drive and be reliable as hell
