I searched, but didnt come up with anything...trying to run dual solenoids as i have a 10lb spring in the gate, and cant get over 25lbs on a single solenoid. So picked up another solenoid and cant find how to have them plumbed or wired. Any info would be appreciated.

 

https://honda-tech.com/forums/forced-induction-16/diagnostic-general-discussion-using-twin-boost-solenoids-3018483/page2/#post48791709
trythis

why not run this 4 port one?
http://store.evans-tuning.com/perfor...enoid-kit.html

"The Evans Tuning 4 Port Boost Solenoid opens up the door to running a much smaller wastegate spring to achieve similar or higher boost levels as older 3 port solenoids. Smaller wastegate springs allow lower boost levels when running directly off of the spring so you can ramp up boost gracefully without excessive wheel spin. There has never been a better way to get traction back."

 

I know about the 4-port. But i currently already have 2 3-port.

 

ah ok. that thread had a diagram posted.

 

Yeah...thats awesome! Thank you!

 

here

 

Try 4 port works great I have 8psi spring and can still run 30+ psi

 

davef always have the helpful diagrams at hand thanks a lot bro I learned a lot from the things you post

 

no prob, im here for free info

 

here also another thread with a fancy pants diagram


https://honda-tech.com/forums/forced-induction-16/diagnostic-general-discussion-using-twin-boost-solenoids-3018483/

 

What Hz on the solenoid are you guys finding works the best? 31hz, 35hz, 78hz examples. Or what about enabling the Variable freq box. I ask beacuse i was only able to make 32psi off a 12.7psi spring and my duty cycle on the solenoid was at 97% when i went to 98-99% the boost dropped... So i just bought a 4 Port ima try that.

 

^^ you'll love it

 

44 on a 9 spring here.

 

So I will be running 2 wastegates this year, and like the idea of the 4 port solenoid, but I would need 2 right? The purpose of the 4 port, is to allow high boost on smaller springs right? Or am I missing something? Also, can you tee the fitting for reference like that, or does Tial call for a dedicated line like on the BOV?

 

you still use one solenoid and tee's are fine

 

If you have an ECU that has multiple outputs that would be best. I use mine like Dave has his, but I have a separate output on the bottom of the gate. When I want more boost than the top solenoid allows I work in the lower solenoid.

 

Pretty sure the 4port needs a lower frequency than the 3 ports. I believe I have my 3 port set at 31 and have read the 4 ports like 25-27 hz you'll have to make adjustments and find the sweet spot

 

any difference from running a dual 3 port vs the 4 port?

 

Some say dual has more adjustability vs the 4 port but then others say the opposite. I would imagine both will give about the same when used properly

 

So then the only reason for dual solenoids, is for the 1 extra port? The only reason I ask is the diagram shows 2 solenoids. But the way I understand it, the 4 port runs both gates?

 

I would think the dual solenoid would have more resolution IF and only IF you have two separate tables. Otherwise they should be pretty close to the same.

 

the 4 port will run the top and bottom port at the same time. its not about the number of wastegates.

one is setup as a bleed type, while the other is providing pressure.

 

Now I see. I don't know why, but sometimes I get pretty dense. I will just run it the way your diagram has it. Looks easy enough. I am not trying to re-invent the wheel by any means.

 

The 4 port solenoids that we sell run at 31 hz, just like the 3 ports we sell. There are so many different combinations of mac solenoid part numbers it will make your head spin. We worked with Mac to find the correct solenoid to match the 3 port's frequency that are common (31 hz).

 

that dang 4 port is expensive! how do we know what hz to use? my 3 port is "lazy" and builds boost SOOO SLOW. thinking of buying a 4 port to solve that issue