manual boost CTR question

[jsveb]

Hi

Rookie question -beware.

I have a manual boost knob. I just want to be certain about the operation of this.

I want to "close" it, minimum boost.

Can you confirm that by closing it (turning it clockwise) I'll reduce boost?

It is a classic Porsche/Ruf type controller.

Thanks

Jesper

[cole930]

Clockwise should turn the boost level down. Try in 1/2 turn increments and check you boost gage to make sure your going in the right direction.

Cole

[OSI930]

Here is a photo of a Ruf boost controller:

[Flieger]

Looks like the Ruf means turn right to go faster. Clockwise=higher boost.

[jsveb]

Thank for the feedback.

I just realized the the abbreviation I used for control (CTR) is misleading in relation to RUF. Sorry didn't think about that.

Flieger, it sure looks like it is clockwise=more boost on that RUF controller.

Mine is a much older type though. will get a pic now.

Jesper

[jsveb]

[jsveb]

Originally Posted by cole930

Clockwise should turn the boost level down. Try in 1/2 turn increments and check you boost gage to make sure your going in the right direction.

Cole

I'mgonna try that. Today is raining real bad
It'll have to wait.

Thanks

Jesper

[mooney265]

I have the silver one... CW to lower boost and CCW for raise boost... I remember by thinking "tighten turns off the boost" just like a faucet turns off the water...

I put a black mark on mine [like the minute hand on a clock], so that I know how many times I'm turning it.

In order to get 0.95 BAR boost, I tighten all the way and "loosen" a full 2.5-turns...

It has a locking screw [alan head] that I use to lock it in place... I have a 3-yr old that sits back there and I'm afraid he may go to turning it - so, that eliminates that possibility...

[jsveb]

Originally Posted by mooney265

I have the silver one... CW to lower boost and CCW for raise boost... I remember by thinking "tighten turns off the boost" just like a faucet turns off the water...

I put a black mark on mine [like the minute hand on a clock], so that I know how many times I'm turning it.

In order to get 0.95 BAR boost, I tighten all the way and "loosen" a full 2.5-turns...

It has a locking screw [alan head] that I use to lock it in place... I have a 3-yr old that sits back there and I'm afraid he may go to turning it - so, that eliminates that possibility...

I'll do the same. The allen screw is tight now for the excact same reason

Before I posted this thread I noted the position of the dial, but then I wasn't certain, and decided to ask you guys.

Thank you

I'll keep the faucet closed for now.

Jesper

[mooney265]

just understand that by fully closing the valve, you're boost will then default to the wastegate spring. If you have a 0.7 BAR spring, then that will be your boost.

also, your WUR will still fully enrichen the mixture, but will be mixing with less air; therefore, you "may" be running very very rich...

just food for thought...

[jsveb]

Originally Posted by mooney265

just understand that by fully closing the valve, you're boost will then default to the wastegate spring. If you have a 0.7 BAR spring, then that will be your boost.

also, your WUR will still fully enrichen the mixture, but will be mixing with less air; therefore, you "may" be running very very rich...

just food for thought...

Thank you for pointing it out.

I don't know the AFR as it is, and I hope on the rich side is better than to much "lean" boost.

Jesper