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-   Porsche 914 & 914-6 Technical Forum (http://forums.pelicanparts.com/porsche-914-914-6-technical-forum/)
-   -   placing proportioning valve (http://forums.pelicanparts.com/porsche-914-914-6-technical-forum/2759-placing-proportioning-valve.html)

scg 03-28-2001 09:13 AM

placing proportioning valve
 
Well, I've got the bulkhead motor mount all bolted together and welded in and now I'm left with placing the rear proportioning valve. It clearly can't go where it used to and I could mount it to the (driver's) side of the mount as it appears that Wayne did, but I'd have to jury-rig some spacers to bring it up off of the bulkhead far enough for one of the lines. Does the valve have to be mounted horizontally as was original, or can I mount it any way I want (vertical, up-side-down, backwards, etc.)?

scott
closer and closer to 2.7 914/6

jabb 03-28-2001 09:22 AM

If you are upgrading to 911 brakes (front)
I would just replace the valve with a "t"
fitting. This is what I did... Also some
with stock 914 brakes have also choose to eliminate this Valve... Do a search you will
find plenty if discussion and opinions on this topic.


------------------
  • Joe A.
  • 84 911 Targa
  • 75 914/6 3.0

scg 03-28-2001 10:56 AM

Yeah, I've thought about that. The jury seems to be split on this subject, however. I've upgraded to an 's' front suspension and brakes w/19mm m/c and I was leaning towards putting in a 't', but it rains unexpectedly sometimes here in the pacific northwest http://www.pelicanparts.com/ultimate/wink.gif and I want to be sure that the rear end stays behind me under heavy braking . . .

Oh, all right: I've re-read all of the posts. I'll put in a 't' fitting and see if I have any problems first. I can always re-install the proportioning valve.

scott

[This message has been edited by scg (edited 03-28-2001).]

Dave at Pelican Parts 03-28-2001 11:12 AM

In theory, at least, the rain should be the place where rear lockup is least likely to happen. When your tires don't have as much grip, less weight will transfer to the front end, which will not decrease the rear traction as much (relative to the front end). Going downhill on dry pavement with good tires is the situation where you are most likely to lock the rear wheels.

--DD

scg 03-28-2001 04:33 PM

Interesting! I'll give it a try in a safe place when I get everthing together. There are some great downhill grades around here (including long driveways).

Thanks All For Your Input!

scott

John Rogers 03-28-2001 06:59 PM

Remember that the pedal will get more solid faster with the tee than the prop valve. That takes some time to get used to and I think that is why folks say it causes lock up easier.

scg 03-28-2001 07:30 PM

I hope to spend some time at the track (and at track school) to get re-aquainted with the car and my long atrophied 'skills' (lost since marriage http://www.pelicanparts.com/ultimate/wink.gif)

I still miss my old Volvo 122s

scott


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