I've looked and can't find a difinitive answer for this question. How does properly set up Forge wastegate actuator hold boost compared to a stock actuator on a IX?

 

There's so many threads about this it's not even funny.

It's a stronger actuator, which means you'll need MORE boost pressure to open it. It "holds" it the same; if you don't mind a 2-3psi hump while running in the low 20's for boost.

 

Just by swapping the Forge, I was able to gain 2psi up top. Before, I would spike to 24 psi @ 4krpm and taper down to 20 psi @ 7krpm. With the Forge WG, i would spike to 24 psi @ 4krpm and taper down to 22 psi @ 7 krpm.

I'm still playing with the preload of the WG. Some members was able to hold boost straight at 24 psi all the way to 7krpm.

 

you should turn your BC all the way down and put your preload at around 18-20psi and then turn up your boost controler to what ever psi your tuned for. trust me this works, this is what I did with my IX

 

That is what I have done twice now and have had success both times. Once on a IX actuator and once on a VIII actuator.

 

Get a GM BCS instead! I hit 26psi and hold it all the way to 6000rpms. Then falls off to 23psi by 7500, best $36 I've spent!

 

Well, I run 27 psi with alchy. It tapers down to 22 or so. I am hoping to get it to hold at least two more pounds by redline. I hope this is possible. By the way, I will turn my MBC all the way down, set the preload to 18-20 and then turn up my MBC. Thank you all for your suggestions and comments as always. Install will be Friday after work. Should take me about and hour!!!

 

that is correct! Good luck buddy, it should be running perfect after that.

 

Are you running 27 PSI w/Alky 24/7, or just part time? For full time 27#, I'd probably try a bit more preload. I think I'd try 22#. Just approach it incrementally and with care.

First, get it up to the 18-20 PSI range and then from that point on, just shorten the actuator rod in 1/2 turn increments, retesting after each additional 180* turn.

Sometimes, depending on the application, the Forge actuator rod will be too long to allow shortening beyond a certain point because the tip of the threaded rod can bottom out the threads inside the turnbuckle.

If this were to happen then you'd need to trim about 3/8" off the threaded end of the actuator rod. Good Luck!

 

I think that the "humpie" actuator is the Forced Performance HD IX actuator not the Forge WGA. Furthermore, its(the FP HD WGA) humpiness is only when used on certain EvoGreen turbos and not the stock IX turbo. Or maybe I'm wrong(again)!