Turbo-LS

iTrader: (4)

would the two work better than running a single 4 port?

Muckman

iTrader: (2)

Whos running dual solenoids setup like Tony's diagram? How does this compare to a 4 port solenoid?

SPOOLINmatt

+1

Muckman

iTrader: (2)

Ive researched it more and I believe dual 3 ports offer no advantage over a single 4 port but Id like to hear from dual 3 port users, specifically if anyone has tried both setups.

guessohw

I believe this was the same issue I had back at T1 on the dyno. My solenoid would hold and peak at 26psi then fall back to 24ish. As for the diagram above, how do you wire up the dual three port? Just match the wires up and connect them as you normally would if using S300?

Muckman

iTrader: (2)

Every turbo will taper boost when you start to exceed the flow of the turbo at a given pressure. Did you try ramping up duty cycle to fight the boost taper? Yes the single ecu output will drive both solenoids when wired together.

guessohw

Tony at T1 did all of the tuning. I believe he said we were at 95% duty on the solenoid and the tune was around 75% if that sounds right.

Steeve_Civic

Same question, how do you wire up them?
There are 2 wires per solenoid.

Other question, where can I get a good 4 port solenoid?

rudebwoy

iTrader: (1)

I am having a hard time understanding this thread. I am currently using a twin scroll manifold with 2 wastegates, I have 1 Mac valve setup parallel with the 2, last year I had boost control issues, I ended up running spring pressure to complete the tune. Are ya'll saying I need to run 2 wastegates with this twin scroll setup?

turbo boost

iTrader: (1)

^^^ with 2 wg's couldnt you run a silonoid for each wg?..or would that not work?

extralargenog

iTrader: (1)

Im running 2 3 port MACs, twin wastegates... Setup to cut the boost to the bottom port like Tonys diagram.. 11 pound springs. Looking for 40-45 pounds up top. 35 no problems.







Rn the gates in series 1 to the other then use the common inputs (to both gates... 1 for toip and 1 for bottom) hooked up to pushlock outfitted solenoids. 1 Sol controlls the top, 1 cuts the bottom ports on the WGs dead.

I may mess with it





No it would just redundantly control the top of each. you NEED the functionality of BOTH solenoids to BOTH gates, hence whay im doing it how I am at least

Muckman

iTrader: (2)

Im curious at what duty cycle does boost increase over spring pressure and how much duty does it take to make 35psi?

rudebwoy

iTrader: (1)

can you show a diagram? I so happen to have an extra Mac valve. do you hook both of the wastegates to pin A11?

DraginX

If you were to do that it would be like running one solenoid, only difference you would have one for each. Running the two together the way tony's diagram shows basically holds the gate shut from the top and the bottom port of the gate instead of just the top.
One 4 port works the same way.

As for wiring you just just t the wires in from the second solenoid to the same wires the original gate was wired to.

And for plumbing in the dual 3 port setup into two gates, or even the 4 port into two gates, you just t into the line and hook it on the same spot on the gate. Top lined t'd to the top line, bottom to bottom.

turbo boost

iTrader: (1)

o ok...now i understand

rudebwoy

iTrader: (1)

now how do you setup the duty cycles while running 2 different valves with only one power source? I wanna try this using 2 valves, 2 wastegates, and s300 with PWM A11 source.... the real question is do I really need 2 valves, or will a single 3 port valve controls 2 wastegates and control boost properly?

Turbo-LS

iTrader: (4)

the single mac valve will control two wastegates. the purpose of double 3 port valves is to have the ability to run a smaller spring in the wastegate to have absolute traction in the lower gears and also the ability to have a much higher maximum boost level even on the smaller springs. You just wire the two sets of wires in parallel which means both positive together and both negatives together and then connect them the way you would connect a single valve wiring to the ecu

poorboy44

I know this is kind of an old thread, but everytime I search it comes up with this one... I understand what you're trying to do and achieve with the diagram above, but what's the purpose of switching the input and vent on the second valve compared to the first?

Muckman

iTrader: (2)

They are opposite of each other. One is N.C. and the other is N.O.
sol1 will add pressure to top port as duty is added.
sol2 will vent pressure to side port as duty is added.
Its all about manipulating boost reference pressure.

H22Krew

I also have a single Tial V60, and I have to ship my car off to get tined with the new setup in the next few weeks or so....currently running a single 3 port and hondata s300 with an 8lb spring. I was told I could do a 4 port with a 4-5lbs spring and have better control up to 30psi no problem, and then someone else told me that backpressure could force the gate open anyways with the lower spring pressure....Then i saw the dual 3 port setups, and I saw told that duel 3 ports are best suited to controlling 2 gates , not one single V60 big gate dues to lack of control of the s300 or somehting along those lines.....I really don't wanna have to put a 10psi spring in my gate as it is now cause i neeed that bottom end traction.

JENSENBUILT

revived, any insight on this?

TheShodan

iTrader: (14)

Such as.....?


I mean.. that's how its done.

JENSENBUILT

comparison to running 4 port and resolution

Tony the Tiger

It will be the same resolution as running the 4-port by theory.. Both dual 3-port and single 4-port will effectively have half the resolution as a traditional single 3-port. This setup will still give you fully pressurized top and bottom port for the wastegate at 50% DC, just like a 4-port.

If you are running into uncontrollable boost at 70% or higher on a setup with low backpressures (K-series sidewinder), you can place a small 0.050" restrictor on sol.2 vent and see if it helps. Most wastegates tend to leak/seep between the valve stem which shares the same cavity as the WG lower port and that's just normal for older higher mileage parts. The top port of the wastegate usually never leaks if the diaphragm is still good. Putting a restrictor at the sol.2 vent there will help keep more flow to the bottom-port keeps it there longer as the solenoids sheds away the flow at higher DC.

Steeve_Civic

Could you show the diagram please, because don t show anymore?
I m running 2 wg and AVC-R, what is the best way to go, dual 3ports and 1 4ports?

Thks