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-   911 / 930 Turbo & Super Charging Forum (http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/)
-   -   Backdating '76 930 to original non-intercooled setup, what should I change? (http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/816446-backdating-76-930-original-non-intercooled-setup-what-should-i-change.html)

ivanuf 08-13-2017 11:55 AM

Quote:

Originally Posted by stevie 77 930 (Post 8120938)
Here is a picture of an early intake manifold. I tried to mark vacuum hoses, its not great, but here you go.

Hose #1 large diameter hose for brake booster

Fitting # 2 Hose attachment to BOV hose is about 8'' long and is routed under
the manifold

Fitting #3 short hose to Vacuum limiter goldish canister

Hose # 4 vacuum to distributor pod

Hose # 5 to wastegate

Fitting # 6 vacuum line to vacuum limter nipple on the front




http://forums.pelicanparts.com/uploa...1403029700.jpg

One question on this old topic, I am in the process of doing the same work and do not see where into the wastegate #5 will go.

The wastegate has a lower hose that as I undestand goes before the intake into the intake tube, and the upper port as I understand vents to the air.

Any pictures of this connection?

Thanks
Ivan

stevie 77 930 08-15-2017 12:32 PM

as pictured # 5 hose goes to wastegate lower line. As you state the top of the wastegate vents to air

http://forums.pelicanparts.com/uploa...1502829068.jpg

ivanuf 08-17-2017 12:57 PM

Stevie

Can you post some pictures of that engine all around?

It will be great reference

Ivan

stevie 77 930 08-18-2017 07:16 AM

http://forums.pelicanparts.com/uploa...1503068833.jpg

http://forums.pelicanparts.com/uploa...1503068902.jpg

http://forums.pelicanparts.com/uploa...1503069040.jpg

http://forums.pelicanparts.com/uploa...1503069228.jpg

G60SuperCharger 08-18-2017 08:17 AM

Wow that is some engine porn right there! Gorgeous work Steve!

This thread bump brings back a lot of memories. Although I sold my Euro '76 930 non-sunroof for a lot of money 3 years ago, I sure do miss it.

More pics: https://goo.gl/photos/g8KBjKuWovTaT6cs9

http://forums.pelicanparts.com/uploa...1503073018.JPG
http://forums.pelicanparts.com/uploa...1503073018.jpg

ivanuf 08-20-2017 07:15 AM

Thanks stevie, great information. I might be sending you some more questions if you don't mind. I am in the process of doing the engine work.

I am not doing a 100% back to stock. I kept the headers, and left the air pump out for now and I am still debating on the need to add the stock BOV.


http://forums.pelicanparts.com/uploa...1503242001.jpg

stevie 77 930 08-20-2017 07:51 AM

The stock BOV works perfectly well and i wouldn't delete it. As you know it integrated into the up and down pipes. If you are referring to the decel valve, that too, when woking correctly serves a good purpose. Here in California, without the air pump and EGR, i wouldn't pass the visual smog test, but I do get by with W-pipes vs thermos.
Your engine is looking good !

ivanuf 08-20-2017 06:14 PM

I am not doing the emissions parts for now. I will problably gather the parts over time just to have them but I do not need them for my inspections.

What I am referring to is the part circled on the picture below. I do not have it, don't know what it does and not sure If I get one how will I install the hoses if the car does not have the emission components. I refer to it as BOV, but not sure if accurate.

All turbo carreras I have seen are not using it, some have it delete ans some are just sitting there.

Any suggestions?

http://forums.pelicanparts.com/uploa...1503281433.jpg

stevie 77 930 08-21-2017 07:09 AM

What have " circled" is the control valve and what you " X" is the diverter valve. You are correct, not needed if you are not using the air injection system.

In case you want to know what these do:
The control valve is boost activated and measures a certain amount of pressure and then sends that pressure to the diverter valve, opening the diverter valve to divert air away from air injection system during boost conditions.

Les Paul 08-21-2017 07:54 AM

I have those parts somewhere in my garage.

G60SuperCharger 08-21-2017 10:53 AM

This info is gold, thanks again so much Steve!


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