Vacuum question
Vacuum question
With all of the "garbage" stripped off of an rx7, what exactly is left that needs vacuum? I think i have it all but just want to double check.
-Boost sensor
-BOV
-Boost Guage
-FPR
What would be the best way to run these lines? There are i think 7 ports on the UIM for vacuum and one at the BAC valve.
second, my car is leaking air from somewhere, no idea whether it is boost or vacuum i just can't find it and other then the obvious start it and spray carb cleaner at probable areas, is there another way to...pressure test my manifolds and throttle body to find the exact spot of the leak?
http://s17.photobucket.com/albums/b8...view=slideshow
there are some before and after pics of what i have done with my car and whats been taken off (basically all block off plates)
-Boost sensor
-BOV
-Boost Guage
-FPR
What would be the best way to run these lines? There are i think 7 ports on the UIM for vacuum and one at the BAC valve.
second, my car is leaking air from somewhere, no idea whether it is boost or vacuum i just can't find it and other then the obvious start it and spray carb cleaner at probable areas, is there another way to...pressure test my manifolds and throttle body to find the exact spot of the leak?
http://s17.photobucket.com/albums/b8...view=slideshow
there are some before and after pics of what i have done with my car and whats been taken off (basically all block off plates)
http://fc3spro.com/TECH/PROBLEMS/EM/vacdiagram.gif
look where the UIM connects to the throttle body.....3 hoses on the front, 4 on the back.
look where the UIM connects to the throttle body.....3 hoses on the front, 4 on the back.
Looking for a Turbo FC
Joined: May 2005
Posts: 4
Likes: 0
From: Glenview, IL
With all of the "garbage" stripped off of an rx7, what exactly is left that needs vacuum? I think i have it all but just want to double check.
-Boost sensor
-BOV
-Boost Guage
-FPR
What would be the best way to run these lines? There are i think 7 ports on the UIM for vacuum and one at the BAC valve.
second, my car is leaking air from somewhere, no idea whether it is boost or vacuum i just can't find it and other then the obvious start it and spray carb cleaner at probable areas, is there another way to...pressure test my manifolds and throttle body to find the exact spot of the leak?
http://s17.photobucket.com/albums/b8...view=slideshow
there are some before and after pics of what i have done with my car and whats been taken off (basically all block off plates)
-Boost sensor
-BOV
-Boost Guage
-FPR
What would be the best way to run these lines? There are i think 7 ports on the UIM for vacuum and one at the BAC valve.
second, my car is leaking air from somewhere, no idea whether it is boost or vacuum i just can't find it and other then the obvious start it and spray carb cleaner at probable areas, is there another way to...pressure test my manifolds and throttle body to find the exact spot of the leak?
http://s17.photobucket.com/albums/b8...view=slideshow
there are some before and after pics of what i have done with my car and whats been taken off (basically all block off plates)
http://www.machv.com/macvleaktes.html
No affiliation but I've used one of theirs for years, it's just a basic homedepot job but works perfectly.
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
http://fc3spro.com/TECH/PROBLEMS/EM/vacdiagram.gif
look where the UIM connects to the throttle body.....3 hoses on the front, 4 on the back.
look where the UIM connects to the throttle body.....3 hoses on the front, 4 on the back.
I was just messing with you.
Only one of the four on the back is vacuum. The lower one. On the front only two are vacuum. The others route to prior to the throttle plates and hence are not vacuum.
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So what would be the best way to wire up my vacuum? use the lower one on the backside for the FPR and 1 on the front for the boost sensor and the other on the front for the boost guage and BOV?
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
I'd use the original nipple for the BOV. That's the one on the right side or the intake. Just aft of the BAC if memory serves.
One on the back for the aftermarket boost gauge.
Maybe the top one on the front for the boost sensor. Lots of ways to do it. The attached jpg is off a series four turboii hood.
One on the back for the aftermarket boost gauge.
Maybe the top one on the front for the boost sensor. Lots of ways to do it. The attached jpg is off a series four turboii hood.
Last edited by HAILERS; Dec 24, 2008 at 06:26 PM.
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