madmarx

iTrader: (1)

When i first got my scooby, the 2 port boost solenoid wasnt working right and was an open passage to the actuator, giving me 0.5 bar boost approx all the time at any revs. For the easiest i fitted a manual control valve and did away with the standard piping etc. Car runs spot on and boosts fine to where i have set it, ( yes i have a boost gauge ). My Question is :- Am i losing out on anything performance wise by not having the boost modulated ???

Car is a 52 plate bugeye prodrive, that has been remapped to 99 fuel. No other mods.

bengo

iTrader: (17)

As your ECU is no longer controlling boost it will no longer be able to automatically limit the boost if anything goes wrong (e.g. if you over boost, or if you get knock).

ukpaisley

iTrader: (4)

You may find with a manual boost control the bost comes on a bit later due to some of the pressure passing the manual control valve. I have used two manual valves and both of them do not give the responce of the electronic one. (Both valves were Daws type)