ECMlink Dual ingersoll rand bcs

[tractionlesscoltgt]

Is it possible to run dual isr bcs from ecmlink to be able to get more boost out of a softer spring 38mm wg. The reason i ask is i am fwd on my colt i am really happy with the boost by gear setup right now. I am worried that by changing the spring i will lose the traction down low by being forced to run higher boost by default. Is there any way around this issue aside from swapping the spring? 4 port bcs? Dual 3 ports?

 

[curt-s]

I've not heard of the IR solenoid when used as a BCS being a weak point of any system, nor ever about someone running two on any car.

You can't run below wastegate pressure anyway and a BCS allows you to run any amount you want, from wastegate up to whatever your turbo can produce before something explodes. The only limiting factor is the fidelity in the PWM signal vs BCS response to said signal. In other words, you may not be able to run increments of 1psi, it may be 2 or 3.

If you change your spring to be weaker, you'd have to adjust your duty cycle to remain closed longer as well, if you want to run less boost. The longer it's closed, the more source signal pressure reaches the wastegate and will cause it to open sooner.
If you want to run more boost, you adjust the duty to vent more source signal pressure. That effectively delays the opening of the wastegate until your higher target pressure is reached.