When using an electronic boost controller, is there any reason you couldn't run a wastgate spring with a really low pressure rating with high boost like 20 psi? Someone is saying that "it's not a good idea," but I don't see why it would matter given how a boost controller works.

 

if you have a good boost controller it works fine.

 

I've heard the same thing. It's not the right way to do it, but haven't heard why

 

i heard you cant boost more than twice your wastegate spring rating

 

?
ive never heard that.
lets get some real answers*cough* geoff, b18b etc*cough*

 

yeah, i wanted to get some of the experts to weigh in on this.

 

Maybe its not good for the boost controller to "hold" that much pressure?

I would like to know too, not that I will ever boost that much, just something to know I guess.

 

me too. i want to know

 

depends on the wastegate and the boost controller. with an 8 lb spring on a hks or smaller tial, and a greddy tvvc for instance, i was maxed out at around 23 lbs. it varies but its true, the smaller the spring, the less psi you max out at(Boost).