Increasing boost on the 4x4

[spamanglenn]

you can put a bleed valve in the line from the intake to the wategate.What you could also do is take the boost pressure after the intercooler which is the boost the motor actually sees and is a lower number.Hence the turbo boosts harder to bring this pressure up to wastegate level.What i have also done is run a longer line with a 500-600ml canister teed off this boost line.This canister has to fill up to pressure DELAYING the wastegates response to the engine boost.This effectively keeps the wastegate totally shut until you have exceeded the set psi spooling up faster and mildly overboosting on initial throttle then dropping back to your desired level.This gives a heavy vehicle more instant torque.The balance with this is to not overboost too much as the wastegate bounces a little before settling.You can,t kill a diesel with more boost a no extra fuel,it,ll just run leaner(cooler) and go slower.The limiting factor is intake temp and engine life once you,ve added more fuel to suit.Don,t most turbo diesels have a fuel pressure regulator that adds fuel according to boost?Maybe not.Turbo diesels rock i love them.Go for a run in bruces one day and you,ll see what i mean.