M35 Stagea Boot Control

[matt_gumpym35]

Thinking about bypassing the standard boost solenoid and installing a turbosmart manual boost controller.

Will this be safe? Buying a new gauge to keep an eye on boost levels.

What can i safely run on a standard turbo, it was rebuilt by the previous owner 15,000kms ago, not sure if its still got a ceramic wheel though..

[scotty nm35]

Might want to find out if it's steel wheeled before winding too much into it, these do run 14psi stock...

If it's highflowed, perhaps the actuator mod is a better start? Be aware, you may start hitting airflow cut if you push too far... Then it's Emanage time.

[matt_gumpym35]

Yeh better be safe, ill contact the previous owner tomorrow.

Been reading a few theads about it, will switching to a boost t help build boost earlier? Not more just sooner?

Something about the standard solenoid bleeding boost early..

[scotty nm35]

If it is highflowed, and they installed large wheels, it will seem very laggy. At what revs does boost kick in?

[DaveM35]

I put a turbosmart boost T on mine and other than the rear section of exhaust it's all stock. Most I've run is around 17psi but got scared after a while and put it back to 14...i think I was getting airflow cut too at the higher boost sometimes. But yeah still run it and prefer to standard electronic one.

[matt_gumpym35]

Id say it comes on at around 2500rpm, is that normal?

[scotty nm35]

It sounds pretty close to normal. You could well have a second hand stock turbo installed.

Does the turbo make a jet turbine sound?

[matt_gumpym35]

Nope, i have driven one that sounds like that though. Does the stock turbo always seem so loud?

Only time i can really hear the turbo is on cold start ups but once it warms up its gone. Just a slight whistle under full throttle.

[matt_gumpym35]

Just installed a boost t, set it to stock boost but it does feel as if its coming on boost sooner and harder. Still drops off up top though

[scotty nm35]

It will drop off up top as the wastegate spring is just too soft, manifold pressure simply blows it open. That is the reason I modify them with an external spring. There are a few threads on the subject, one owner recently got a turbosmart actuator in there but it seemed like a lot of work compared to the external spring imo.

[scotty nm35]

Does the stock turbo always seem so loud?

Only when the bearings are shagged. I had one here that was silent, must have been replaced in Japan before the car came over.

[matt_gumpym35]

Hopefuly mine stays quiet then!!

Yet to confirm what type of turbine wheel was put into the turbo, will your actuator mod increase boost past 12psi up top or just stop it from dropping off?

[scotty nm35]

The spring can be replaced to any tension, or even removed so it runs stock boost again. That is the main benefit of mounting it externally, as you can perhaps change it in situ. Pain in the arse to swap actuators though.

I usually ship it with a 16 psi spring, but depending on the setup, it could run more. Replacing the BOV is the main culprit it seems, that might make it hold 20psi.

[matt_gumpym35]

16psi sounds fun..

Much point doing all this with the stock exhaust system?

Id like to get a dyno run, make sure all is okay before upping the power. Does Cihan do just dyno runs? Not up to tuning jusy yet. And does he have a contact number??

[scotty nm35]

www.etuner.com.au

I would be changing the dump at least, if you saw one you would laugh. You could barely get a 50 cent piece down the throat, then into a restrictive cat.

He is easy to get along with, just let him know you want a baseline power figure before the inevitable tune.

[matt_gumpym35]

You seem really keen on upgradig the stock dump scott, cant imagine why haha.. but yeh ive seen a std one, pretty laughable.

Yes. Just a baseline figure. For now......

Is an emanage the best way to go in terms of tuning?

[scotty nm35]

Definitely the cheapest tuning option atm. Talk to Cihan about it if you like, he tuned mine 20 or more times before I changed to the Fcon, he is pretty confident with it now.

[joshm35]

Im running 16-18 psi currently without a problem