HKS wastegate adjustment with manual boost controller - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jamg · 05-02-2014, 12:58 PM

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)

jamg · 05-02-2014, 06:09 PM

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/produc...ch/product/197

jamg · 05-03-2014, 12:15 AM

I'm thinking about extending the rod out. That way it stays open. And opens wider.

*brndck* · 05-03-2014, 12:41 AM

Quote:

Originally Posted by jamg

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.

jamg · 05-04-2014, 12:38 AM

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

Quote:

Originally Posted by TheRealSy90

Definitely keep the wastegate open all the time that probably works.

Totally works. Every time.

*!Zar!* · 05-05-2014, 09:28 AM

Quote:

Originally Posted by jamg

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?

05-02-2014, 12:58 PM	#1
jamg Nissanaholic! Join Date: May 2009 Location: GA Posts: 2,106 Trader Rating: (7) Feedback Score: 7 reviews	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?

05-03-2014, 11:42 AM	#9
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	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. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

05-04-2014, 01:22 AM	#12
Fuego Zilvia Addict Join Date: Nov 2011 Location: Las Vegas Age: 31 Posts: 629 Trader Rating: (0) Feedback Score: 0 reviews	Set it to 1/2 or greater of your boost goal. Judging from your posts, maybe you should take it to a shop.. __________________

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

05-02-2014, 06:09 PM	#3
jamg Nissanaholic! Join Date: May 2009 Location: GA Posts: 2,106 Trader Rating: (7) Feedback Score: 7 reviews	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?

05-02-2014, 10:55 PM	#4
hartig Zilvia Member Join Date: Mar 2010 Location: western ma Age: 31 Posts: 268 Trader Rating: (4) Feedback Score: 4 reviews	sounds like your mbc is hooked up backwards..

05-02-2014, 11:24 PM	#5
derass Zilvia FREAK! Join Date: Jun 2010 Location: Toronto, ON Age: 33 Posts: 1,182 Trader Rating: (0) Feedback Score: 0 reviews	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/produc...ch/product/197

05-03-2014, 12:15 AM	#6
jamg Nissanaholic! Join Date: May 2009 Location: GA Posts: 2,106 Trader Rating: (7) Feedback Score: 7 reviews	I'm thinking about extending the rod out. That way it stays open. And opens wider.

05-03-2014, 09:37 AM	#8
hartig Zilvia Member Join Date: Mar 2010 Location: western ma Age: 31 Posts: 268 Trader Rating: (4) Feedback Score: 4 reviews	sounds like everything is hooked up backwards..

05-03-2014, 10:34 PM	#10
cratezhayao Join Date: May 2014 Location: new york Age: 36 Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	I might try out my friends MBC since I know his is good.

05-04-2014, 12:38 AM	#11
jamg Nissanaholic! Join Date: May 2009 Location: GA Posts: 2,106 Trader Rating: (7) Feedback Score: 7 reviews	So if I want to run a MBC then what do I do with the HKS wastegate?