I just got my new Hallman RX MBC and was wondering if I should put the heavy spring in? I heard at my altitude 5k+ feet I should use it.

 

hell yeah put it in. it will hold you boost better to whatever you set it at

 

Anyone else agree with this?

 

Yes put it in. I couldn't get boost to go high enough with the soft spring. I forget exactly what it wwould boost to, but I do remember max boost with the soft spring was under 20psi. The heavy spring works great.

 

OK... Went ahead and replace w/ heavy spring. Thanks!!!

 

Just though of another question:

Can I run the stock BOV w/ the hallman or should I wait till my bov comes in?

 

The stock BOV should work with any boost controller.

 

yes you can. i had ran mine with no problems from the stock bov


btw - are you going to be trying another group buy?
https://www.evolutionm.net/forums/sh...2&page=1&pp=15

 

Thanks!!! I might put it on today when I'm installing my Quiafe diff.

Umm... I don't think so. I need to contact my source. I've also learn that the RalliArt might not be real CF.