compressor bypass valve.
09-30-2009, 06:52 PM
#1
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compressor bypass valve.
hello,
from J pipe, how should I route the bypass? I am not using the aac. I think the J pipe went to it.
I have a bosche type bypass, like jim wolf sells.
help please.
got my panasports and re-11s. 225-50-16. tight fit on front.
pics later.
kenny.
from J pipe, how should I route the bypass? I am not using the aac. I think the J pipe went to it.
I have a bosche type bypass, like jim wolf sells.
help please.
got my panasports and re-11s. 225-50-16. tight fit on front.
pics later.
kenny.
09-30-2009, 07:28 PM
#3
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nope
compressor bypass valve.
pop off is different.
my car doesn't have a compressor bypass valve installed.
someone said it should go to pvc as a joke. Factory, it goes to the aac valve, I think.
Got rid of everything on the manifold, per fubar....to clean up the intake.
thanks, need to plumb up jpipe, gotta spark plug wedged in there for now.
kenny.
pop off is different.
my car doesn't have a compressor bypass valve installed.
someone said it should go to pvc as a joke. Factory, it goes to the aac valve, I think.
Got rid of everything on the manifold, per fubar....to clean up the intake.
thanks, need to plumb up jpipe, gotta spark plug wedged in there for now.
kenny.
09-30-2009, 07:35 PM
#5
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turbo question
wastegate actuater plumbed to intake manifold instead of compressor outlet.
vaccum line to actuater collapses with the manifold vaccum.
turbo boost is limited to pop off valve on manifold. [I think]
question:
When boost happens, will it work to open up the collapsed vaccum line? I cannot tell blipping the throttle, standing next to car.
Actuater does not move, however, I know it's boosting.
Want to up the boost.
thanks in advance.
vaccum line to actuater collapses with the manifold vaccum.
turbo boost is limited to pop off valve on manifold. [I think]
question:
When boost happens, will it work to open up the collapsed vaccum line? I cannot tell blipping the throttle, standing next to car.
Actuater does not move, however, I know it's boosting.
Want to up the boost.
thanks in advance.
09-30-2009, 07:45 PM
#7
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Location: Southaven, Ms.
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jpipe
guys, the stock jpipe has a hose fitting on top. From what Ive read from searching forums, this is the compressor bypass valve.
I cleaned up the intake manifold and don't have the aac valve, which I believe it was connected too.
I just need to know where to run a hose from the hose fitting on top of the jpipe to the intake.
sorry if im confusing yall.
The j pipe runs from the compressor housing to the 240sx throttle body, it has a wrinkle black paint finish to it, shaped like...well...a..."J"
I don't see it in your excellent pics nismo.
kenny.
I cleaned up the intake manifold and don't have the aac valve, which I believe it was connected too.
I just need to know where to run a hose from the hose fitting on top of the jpipe to the intake.
sorry if im confusing yall.
The j pipe runs from the compressor housing to the 240sx throttle body, it has a wrinkle black paint finish to it, shaped like...well...a..."J"
I don't see it in your excellent pics nismo.
kenny.
Last edited by captken; 09-30-2009 at 07:48 PM.
09-30-2009, 07:45 PM
#8
wastegate actuater plumbed to intake manifold instead of compressor outlet.
vaccum line to actuater collapses with the manifold vaccum.
turbo boost is limited to pop off valve on manifold. [I think]
question:
When boost happens, will it work to open up the collapsed vaccum line? I cannot tell blipping the throttle, standing next to car.
Actuater does not move, however, I know it's boosting.
Want to up the boost.
thanks in advance.
vaccum line to actuater collapses with the manifold vaccum.
turbo boost is limited to pop off valve on manifold. [I think]
question:
When boost happens, will it work to open up the collapsed vaccum line? I cannot tell blipping the throttle, standing next to car.
Actuater does not move, however, I know it's boosting.
Want to up the boost.
thanks in advance.
Answer (in another question)... have you tried getting vacuum likes that won't collapse?
09-30-2009, 07:46 PM
#9
guys, the stock jpipe has a hose fitting on top. From what Ive read from searching forums, this is the compressor bypass valve.
I cleaned up the intake manifold and don't have the aac valve, which I believe it was connected too.
I just need to know where to run a hose from the hose fitting on top of the jpipe.
sorry if im confusing yall.
kenny.
I cleaned up the intake manifold and don't have the aac valve, which I believe it was connected too.
I just need to know where to run a hose from the hose fitting on top of the jpipe.
sorry if im confusing yall.
kenny.
Pick #1 #2 or #3 from that picture I posted.
09-30-2009, 07:59 PM
#10
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09-30-2009, 07:59 PM
#11
eff good grammar
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wrx/sti's use by pass valves, check with the subaru peoples.
dont ask me i have a turboed subaru but i no nothing about how the turbo works in it other than it spins pushing air into it....some how...its kinda funky
dont ask me i have a turboed subaru but i no nothing about how the turbo works in it other than it spins pushing air into it....some how...its kinda funky
09-30-2009, 08:02 PM
#12
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09-30-2009, 08:12 PM
#14
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post a picture
I'll post a picture tomorrow.
Yes, the 280zx turbo has a compressor bypass, it went to the aac valve. I cleaned up the intake manifold and now the jpipe fitting has no place to go....!
phone camera picture of car.
kenny
Yes, the 280zx turbo has a compressor bypass, it went to the aac valve. I cleaned up the intake manifold and now the jpipe fitting has no place to go....!
phone camera picture of car.
kenny
10-02-2009, 12:04 AM
#18
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Location: San Diego
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If I read your first post right, you can use the nipple on the J-pipe for the bottom of the bosch bypass valve, and use the recirc part to vent back into a tube before the compressor. It's not pretty, but it will work. Otherwise, I'm misreading what you're trying to say. The Bosch bypass valve is only good to about 14 psi before it leaks btw. The Porsche style ones can handle a bit more boost, but not much.
10-04-2009, 08:00 PM
#19
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thank you very much.
If I read your first post right, you can use the nipple on the J-pipe for the bottom of the bosch bypass valve, and use the recirc part to vent back into a tube before the compressor. It's not pretty, but it will work. Otherwise, I'm misreading what you're trying to say. The Bosch bypass valve is only good to about 14 psi before it leaks btw. The Porsche style ones can handle a bit more boost, but not much.
I installed the bosche bypass valve just off the jpipe. I am currently venting to atmosphere.
Satisfying phooshe...! sound everytime I lift off throttle, it operates everytime I lift off throttle, even a little bit, you hear it, so I know the compressor is spinning freely on partial and closed throttle.
I will plumb it up to intake later.
Problem is, 2 turbo cars and one complete engine in parts! No static model for me to reference.
thanks for your reply,
kenny.
10-04-2009, 08:27 PM
#20
Usedta be Justin260z
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10-05-2009, 07:25 PM
#22
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10-05-2009, 07:31 PM
#23
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