You won't NEED one but you will soon enough, might as well snag it up soon.

For the little flame fest going on, if you say you can lower boost below stock why does HKS say you can't? Is it bad for your engine or somthing and they don't want to be laible or somthing?

http://www.speedtoys.com/~stryder/te...l/evcpage1.jpg

(second user note)

 

I could care less that the HKS documentation is wrong. The documenation should state that you can't lower boost to below what the wastegate spring is designed for (or in the FD's case, the actuator). Perhaps other cars run their stock boost right at this point. The FD doesn't.

The FD wastegate actuator is 7 psi, while stock boost levels are 10 psi. Therefore, with a boost controller (or by removing the restriction pill in the wastegate actuator line), you can lower boost to 7, which is below stock boost levels.

 

Adam C answered your question in the first few posts in this thread.

 

Wow. Tyler, you have the patience of Job, my friend .

Guys: an electronic boost controller on an FD can be used to lower boost to a minimum of 7 psi on a properly functioning stock twin turbo system.

I have owned my 7 for almost five years, and have brought it from bone stock to what it is today. I am the co-owner of a performace shop in Fort Worth that does a lot of work on FDs. I rebuilt my own motor, and she it going to dyno in excess of 400 rwhp on pump gas within the next few days. Not bragging at all, just demonstrating that I kinda know what I'm talking about .

 

If you have the cash, get it!

 

OMG...you have been arguing over a factory boost solenoid creating 10psi this whole time? NO **** sherlock...but whenever you use a boost controller you are supposed to remove stock solenoids, like I said in the FIRST PLACE. SO then when you remove the solenoid, your stock boost becomes whatever the actuator spring is. But you wanted to argue semantics..."stock is 10psi...I run 7" HKS is saying stock boost = actuator spring.
GOSH why did you have to argue with me even tho you knew what I was talking about.

 

The boost controller doesn't lower the boost, removing the stock restrictor or solenoid does...BOOYA

 

Because I didn't know what you were talking about. And you don't remove the stock solenoids anyway for an FD.

Nice try at the recovery though....

 

Do you guys with Nissan screennames even own 3rd Gens? Don't take it the wrong way guys, but Rynberg and I are kinda familiar with the workings of the FD .

 

nope we dont own 3rd gens, but we do own cars with turbochargers and boost controllers. we were just posting the facts and rynberg decided to try and be a little arrogant about it. like its been said before, boost controllers are not car specific.

 

Well, not trying to start a pissing contest here, but you *were* wrong. FDs run 10 psi from the factory, and by turning off your profec B you will run 7 psi. 10>7 .

No biggie. I think it's great that non-7 owners hang out on the boards. I've always liked Nissans, very strong motors in those suckers. Are you thinking of getting an RX-7?

take it easy--

 

Tell ya what... take everything you know about a piston motor and throw it out the window when talking about a rotary. Not only is the inner workings and basic design different from the normal, but as are just about everything else. In this case, the turbos. Stick around, learn a little bit. Just because you own a car with a turbo and a boost controller doesn't mean you know what you're talking about when it comes to an FD.

 

Since when did I get arrogant? You stated that you can't lower the boost below stock boost levels with a boost controller. This is wrong. I pointed this out to you and even put a smiley face to show I wasn't being a dick about it. Next thing I know, some jackass is calling me a moron when it's obvious he doesn't know his *** from a hole in the ground. And then he tries some bullshit recovery that didn't make any sense.

 

I would have thought FD owners would be more intelligent. A turbo is a turbo...rotary or not.

Rynberg - Your main point was that a profecB enables you to lower stock boost. The profecB does not have anything to do with lowering your stock boost. End of story.

Just because I don't own an FD, doesn't mean that I don't know more than you.

 

And I would have thought someone who has been proven wrong a couple of times in a row would stop coming back for more.....

AND YOU entered this thread by calling me a moron because I said you can lower the boost levels to below the stock levels with an electronic boost controller. Instead of being a man and admitting you were wrong, you come back with some half-assed attempt at a recovery......

BTW, please explain to us how removing the stock solenoid (which you DON'T do with an FD) lowers the boost level when "all the stock solenoid does is to restrict boost" -- your words.

You're right, but your posts so far have demonstrated that you really don't know much about anything....

 

lol...Rynberg's correct.

Stock wastegate spring inside the stock actuator is set to 7~8 psi. The computer regulates boost via the stock electronic boost controller with it set to 10 psi stock.

If you add a profec B and then set the controller to the "off" position, you'll see plain as day that you'll have a 7~8 psi boost pattern.

Been there, done that.

 

Thanks for the backing Jspecracer7 and Rich. I wouldn't normally bother to get into it with this guy but when a newbie opens up and calls me a moron, I tend to get a little ornery....

 

You continue to back yourself up with semantics, which doesn't cut it.

the functions of the profecB have nothing to do with lowering your boost, admit defeat.

I've made myself pretty clear, and I don't see why you continue to argue.

 

newbie to this board maybe, but guess what, working on cars is done irl.

 

please do explain how "turning off the ProfecB will mechanically LOWER boost levels?!?!?!"

when it is turned OFF, the profecB isn't doing ****!

you are both wrong and right at the same time, get over it already.... senseless crap between 2 sets of badass car groups when all you both need to do is read in between the lines and see you are both equal...

 

Sigh. And I'm sure this won't win me any points whatsoever with you guys (remember I said I like Nissans, hehe) but I haven't found one yet that could keep up with me on the street or the track. Those are the facts. I'll be redeploying back to Fort Hood and then going to the dfw area in about a month, so if you know of any fast daily driven nissans, please let me know--I'm sure they're out there, I just haven't run into them yet .

 

Perhaps, but my statements were all clearly understood while s13sr20's were vague and contradictory.

Besides the original point was that by installing a boost controller, you CAN lower boost levels below stock levels. Which is FACT. I was called a moron and told to quit spreading bad info around by the first two posters for stating this. I still haven't received an apology for that, I guess some people aren't man enough to claim up....

s13sr20: You seem to be under the mistaken impression that I had the misunderstanding...nope, that would be you. Next time, show a little respect for other people when you join a forum....

BTW, how many more Nissan guys are you going to get to join up here to try to defend YOUR misunderstanding.

 

I don't need to show respect to someone who gives other people false hopes.

You said that "An electronic boost controller simply allows the user more active control of the wastegate. And that's all."

Which is incorrect.

 

FOR THE LAST TIME: I told the poster that he could lower his boost levels with an electronic boost controller. THIS IS FACT. If you don't believe me or any of the other experienced members who chimed in, that's your problem. Since you don't own an FD, you can continue to live in ignorance.

Please explain to me how an electronic boost controller doesn't allow the user more active control of the wastegate? The stock ecu operates the wastegate according to a set duty cycle. With an EBC, you can change the duty cycles in order to achieve the boost level you want (and the characteristics of the response as well via the "balance" control).

Please explain how I'm incorrect.....

 

Why do you have keep bringing up the fact that I dont own an FD? That has nothing to do with anything.

I could put a rubber hose where the solenoid was, does that mean rubber hose lowers boost?...I guess so huh.

To state that the ProfecB lowers boost is ignorant, the result after the install was not because of what you installed, but how you installed it.

The balance feature just controlls how aggressively the wastegate opens.