View Full Version : HKS wastegate adjustment with manual boost controller
What's the proper way to up boost to 17lbs via manual boost controller with the HKS internal wastegate?
At first i was only running 8lbs, which is stock.
now i've adjusted the rod, and I'm currently at 10lbs.
but I also have a manual boost controller hooked up, and i'm looking to reach 17lbs, but when adjusting the MBC, I'm not increasing or decreasing my boost.
is there anything else that i need to do to the HKS wastegate?
brndck
05-02-2014, 02:01 PM
Sounds like you have the mbc hooked up wrong.
Why, may I ask are you using an mbc on top of the hks wastegate actuator (basically two MBCs)
I might try out my friends MBC since I know his is good.
I followed the diagram for using a MBC on a internal wastegate.
What should the proper setup should be? If I don't run an actuator what should I use?
hartig
05-02-2014, 10:55 PM
sounds like your mbc is hooked up backwards..
derass
05-02-2014, 11:24 PM
The HKS actuators have an opening pressure of 0.8-0.9 kg/cm^2 (11.4-12.8 PSI). I would adjust the preload to get it into that range with the MBC disconnected. Then connect the MBC and adjust to get your desired 17 PSI.
http://www.hks-power.co.jp/en/product_search/product/197
I'm thinking about extending the rod out. That way it stays open. And opens wider.
brndck
05-03-2014, 12:41 AM
I'm thinking about extending the rod out. That way it stays open. And opens wider.
Clearly you don't understand how a wastegate works.
hartig
05-03-2014, 09:37 AM
sounds like everything is hooked up backwards..
fliprayzin240sx
05-03-2014, 11:42 AM
You shouldnt't need a manual boost controller with the adjustable HKS internal wastegate. All you have to do is shorten/add more tension to the rod and it should raise the boost.
cratezhayao
05-03-2014, 10:34 PM
I might try out my friends MBC since I know his is good.http://fashionold.com/5ce3.jpg
So if I want to run a MBC then what do I do with the HKS wastegate?
Fuego
05-04-2014, 01:22 AM
Set it to 1/2 or greater of your boost goal. Judging from your posts, maybe you should take it to a shop..
TheRealSy90
05-04-2014, 08:27 PM
Definitely keep the wastegate open all the time that probably works.
brndck
05-04-2014, 09:41 PM
Definitely keep the wastegate open all the time that probably works.
Totally works. Every time.
!Zar!
05-05-2014, 09:28 AM
So if I want to run a MBC then what do I do with the HKS wastegate?
No.
Run the HKS wastegate.
MBC with a stock wastegate sucks compared to the HKS one.
Sell the MBC and move on.
You increase boost by shortening the rod on the wastegate.
And what turbo and injectors are you running for 17psi?
Also, what tune?
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