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-   -   manual boost CTR question (http://forums.pelicanparts.com/showthread.php?t=572191)

jsveb 10-27-2010 08:22 PM

manual boost CTR question
 
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 10-27-2010 08:36 PM

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 10-27-2010 08:52 PM

Here is a photo of a Ruf boost controller:
http://forums.pelicanparts.com/uploa...1288237808.jpg

Flieger 10-27-2010 08:54 PM

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

jsveb 10-28-2010 07:08 AM

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 10-28-2010 07:10 AM

picture of my boost controller
 
http://forums.pelicanparts.com/uploa...1288275039.jpg

jsveb 10-28-2010 07:12 AM

I'll try that
 
Quote:

Originally Posted by cole930 (Post 5640338)
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 10-28-2010 07:16 AM

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 10-28-2010 07:31 AM

I got my question answered -thanks
 
Quote:

Originally Posted by mooney265 (Post 5640896)
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 10-28-2010 05:06 PM

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 10-28-2010 09:01 PM

Quote:

Originally Posted by mooney265 (Post 5642198)
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


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