is it possible to have a variable dual stage boost controller so one preset can run 7psi and one can run 15psi safely for example or am i better just leaving it setup at 15 lets say

thanks

 

yep it is totaly posible

 

Thank you, now is there a particular brand of boost controller i should use and anything to be aware of?

Thanks

 

you can do this with an AMAL valve, and various sized jets. Does your car currently have an AMAL valve?

 

A simple On-Off switch will do the trick. Connect the switch in either electrical connection to the amal valve.

 

im going to assume i dont have an amal valve seeing as im pretty sure im running a -31 actuator, 15psi boost and chipped ecu

 

littlr ound thing cream and brown in colour, with the actuator pipes and compressor pipe going through it

 

Turbosmart makes a nice dual stage boost controller.

http://www.awdmotorsport.co.uk/shope...no?id=60&bc=no

 

So thats 2 bleed valves then...
Ive got the a turbosmart electronic controller, eboost street 1, its utter toss and will soon be replaced by an apexi avc-r or greddy profec b spec 2

 

I prefer the manual type with a solenoid switching between settings. Less fuss than with pulse width modulated boost controllers. (Nothing wrong with the 2 stage manual boost controller I linked) Keep things simple - less problems.

 

that is the sort of thing im looking for! il see what the bank manager says when the conversion is done then... anyone recommend turbo timers or do i just stay with the car for a bit of time to let it cool?

 

If you are sensible then a turbo timer is not required.

 

What problems did you experience while using the Turbosmart E-Boost?

 

We fit these to lots of RS Turbos, they work extremely well.
http://shop.motorsport-developments....ller-297-p.asp

 

Unfortunatly it still fitted to my car, it does the job I suppose but I have never been able to smooth out the transition between target pressure and held duty cycle. Resulting in a surge like effect,
Its cheap for a reason, very lacking in loop tuning options, it isn't even a true close loop system as once the target boost is reached, the output just drops to a user defined duty cycle.