tpi intake breather ques-
#1
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Car: 91 Firebird GTA
tpi intake breather ques-
I gotta question about these "intake breathers"-"valve cover breathers"-can they fit on a regular tpi-look at the pic. for what I'm trying to say
and do they produce any hp improvement?
thanks for any info!!!
and do they produce any hp improvement?
thanks for any info!!!
#2
Maybe
It might but why get rid of pvc (i think its called) pvc pulls out crankcase pressure so you dont blow seals. If you got a big cam though not much vacum so it would be alright.
my 2 cents
TPIGUy
my 2 cents
TPIGUy
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Car: 87 Iroc Z28
Engine: 355 TPI
Transmission: T56
Im assuming you found that breather in jegs or summit, they also have breathers that have a pcv built in if you really want the looks of the breather and need to keep the pcv for functionality.
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Car: 91 Firebird GTA
ok, so it looks like its a maybe-
thanks for the responses guys; Jim85IROC- let me just understand, you say not to replace the one on the side I'm showing, but the passenger side, correct?
and if I do it I'll need 2 of them right? one for each side of where the original hose went-
another thing-are these better for the car or what, any improvements hp-wise or what???
once again, thanks guys!!!!
thanks for the responses guys; Jim85IROC- let me just understand, you say not to replace the one on the side I'm showing, but the passenger side, correct?
and if I do it I'll need 2 of them right? one for each side of where the original hose went-
another thing-are these better for the car or what, any improvements hp-wise or what???
once again, thanks guys!!!!
#6
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Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Jim is correct. On mine I left the PCV alone on the drivers side and removed the pass side hose and elbow and put a breather in its place. Then I capped off the nipple on the TB where the hose used to connect. I've ran mine like this for awhile with no problems. I don't think you'll gain hp but you will get a lot less oily residue buildup in the plenum.
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#10
For those of you with a breather on one side and the PCV valve on the other, do you have any idle/drivability problems? Doing that effectively creates a vacuum leak and lets unmeasured air into the engine downstream of the MAF. Mine is set up the same way and I'm wondering if I should go back to "feeding" the breather from the throttle body.
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Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Originally posted by Jim85IROC
For those of you with a breather on one side and the PCV valve on the other, do you have any idle/drivability problems? Doing that effectively creates a vacuum leak and lets unmeasured air into the engine downstream of the MAF. Mine is set up the same way and I'm wondering if I should go back to "feeding" the breather from the throttle body.
For those of you with a breather on one side and the PCV valve on the other, do you have any idle/drivability problems? Doing that effectively creates a vacuum leak and lets unmeasured air into the engine downstream of the MAF. Mine is set up the same way and I'm wondering if I should go back to "feeding" the breather from the throttle body.
#13
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This doesn't create a vacuum leak at all, it's not even connected to the intake. If you pull the pcv off there will be a vacuum leak because it connects to the intake. The filter just filters the air LEAVING the engine; opening the throttle sucks air from that valve cover with the stock setup, which is why your plenum and runners are so filthy. The filter on the passenger side doesn't hurt a thing.
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Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Jim
I haven't had any major oil leaks yet...the only thing I had was the valve cover grommet where my breather pushes into must have been worn out cuz I had that oily film coming from around the grommet.
I haven't had any major oil leaks yet...the only thing I had was the valve cover grommet where my breather pushes into must have been worn out cuz I had that oily film coming from around the grommet.
#15
Originally posted by rezinn
This doesn't create a vacuum leak at all, it's not even connected to the intake. If you pull the pcv off there will be a vacuum leak because it connects to the intake. The filter just filters the air LEAVING the engine; opening the throttle sucks air from that valve cover with the stock setup, which is why your plenum and runners are so filthy. The filter on the passenger side doesn't hurt a thing.
This doesn't create a vacuum leak at all, it's not even connected to the intake. If you pull the pcv off there will be a vacuum leak because it connects to the intake. The filter just filters the air LEAVING the engine; opening the throttle sucks air from that valve cover with the stock setup, which is why your plenum and runners are so filthy. The filter on the passenger side doesn't hurt a thing.
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