I installed one today for temparary use.
I was wondering how far everyone has to turn theirs open to get 10psi.
I am running full non sequential on a set of the newer 99 spec twins.
I may have wired back my precontrol door wrong.
I couldnt tell what was open and what was shut.
I think that I wired it shut.
I'm not sure that it even matters which way you have it.
Anyway I had to open the controller up about 2 3/4 turns to get 10psi.
Any insight anyone?

 

im sure they're all different, depending on thread size/spring size etc...i have mine fully open while i get ready to break in the new clutch.

 

They are not that acurate. Start with the precontrol in the middle, then start messing the the boost valve. I've had two sets and both were different. For more boost close (turn clockwise) the valve but counterclockwise for more boost after transition. The precontrol will adjust the secondary boost and will effect how much boost on the 1st turbo and how much on both after transition. You can change your boost pattern like a teeter-totter. If you've got the cash buy this one instead http://www.turbosmart.com.au

 

I don't think that's right. The boost controller controls boost, primary and secondary. The pre spool controller controls the transition. That being said, I recommend not installing the precontroller unless you have a problem after installing the boost controller. The boost controller is pretty easy to work with. I recommend starting with it 2 turns from all the way closed. Do a 3rd gear run, and watch your boost gauge. Adjust as needed, doing 1/4 turn at a time. Closing the valve increases boost.

Using the prespool controller makes things much more difficult to adjust. Don't put it in if you don't need it.

Adam

 

^ the precontrol valve can adjust boost. That's why I said to start in the middle. If you close it all the way, you will have higher 1st turbo boost and lower after transition boost. If you open it all the way, you'll have low boost before transition and high boost afterwards. That's was my meaning of the teeter-totter statement.

 

From Rob Robinette's website:

Secondary Turbo Pre-Spool Controller
You can also replace the other restrictor in the turbo precontrol hose. If you do this you will be able to control how much the secondary turbo spools up before it comes on line. That allows you to reduce it's 4500 rpm boost spike.

Entire text located here:

http://www.rx7turboturbo.com/robrobi...controller.htm

 

I'm nonsequential fellas.
Precontrol doesnt apply to me as I have no precontrol.
My door is wired shut. I dont even have a precontrol actuator on the turbos anymore. I removed it when I rebuilt the engine.
I know that some of the pressure is venting through the shitty controller.
I think that i just wired the door open instead of closed.
Im picking up a turbosmart boost controller tomorrow, and gonna weld the flapper shut this weekend.
So thanks anywho.

 

Thanks Adam, I'm aware of Rob's site.

 

i think you're refering to a sequential system. wasn't this thread about boost problems on a non sequential setup?

 

Yea, I am not stuck, just looking for others experiences with building boost using one of these types of controllers.
And again, I am non sequential.

 

I'm non-seq also with the same home depot controller and I can't get over 10psi :-(

 

Yeah, I didn't notice he said he was parallel. D'oh!

Anyhow, please update on the Turbosmart boost controller. To be able to adjust the bost inside the car is well worth $100!

 

Im not getting the one that mounts in the car. I could just mount this one in the car witrh some extra hose.
We'll see.

Jedon, I'm wondering how much the controller vents off. I have a large street port and I ported the exhaust ports open some also without porting the wastegate. So theorectially (i think thats right ) I should be over boosting and getting a **** load of boost creep.
I'll let you know how i get it straightened out.
-Dave

 

I should be overboosting also, I have a street port and a midpipe... I do have the stock pre-cat right now so perhaps that is my problem.

 

Maybe but I doubt it.
You really have a stock precat w/ a midpipe?
Thats funny.

 

I wanted goracer to see it. Sorry to get off the subject.

 

i opened mines all the way and i get a perfect 10psi to redline Im just lucky that way i guess hehe

 

I havent tried that yet. I'll do that before I take it off just to see how it responds.

 

No problem, I dont mind

 

Mine is set for 12 psi. I don't know how many turns it is though.

 

I'm non seq and I get rid of my home depot special and started using a dawesdevice bleeder valves. I get perfect boost (my wastegate is ported though) with no creep.

http://www.dawesdevices.com

Ramon

 

Hey FD3Boost...I had the Team Home Depot Boost Controler on both the the PC & WC...it's a Biiiaaaaaaatch to keep boost in one place...I don't know if it's getting vibrated out of position but it seems like when I had them the the boost was all over the place...I recently got the profec b and love the hell out of it...Highly recommended, awesome price for what you get too!..

 

I've ran a HD valve for about 2 months now and have ran everything from 10psi up to 20psi in seq and non seq. Recently so that I could get a little better spool with the HD valve when running high boost I added a 2nd valve to vent the actuator so that it would see 7psi and start to open till my actual boost was up real high. That works ok too if your going to run high boost but its not perfect.

I just bought a Hallman boost controller, its VERY nice but at $100 its kina pricey for a manual. When you see it though the price is more understandable. It comes with a mounting bracket and everything else you need. You can also get a upgrade kit for it that I think is $60 and it moves the **** inside the car which is pretty cool.

Anyway, just tought I'd share.

STEPHEN

 

Yeah I know I'm lame for still having the precat with a midpipe, I had a deal going on a single turbo kit so I sold my downpipe, then the deal fell through and my new engine took all my money. Oh well, soon I shall get another downpipe.

 

Yea I had a profec B two years ago and sold it like a dumbass!
Anyway. I picked up a turbosmart controller today. I also got under the car again and see that in fact I wired the door ope Dohh!!
So I got that shut and wired back down and the new controller installed.
Man is my **** silly fast now!! With the ported engine, straight exhaust, flywheel and all the odds and ends that were done. It feels like a totaly different car. Thanks for all the info guys.