bnr stage2 no primary boost
#1
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bnr stage2 no primary boost
i just had mt bnr stage2 tuwins installed today and i am getting 0 psi until the secondary turbos kick in and then it jumps to 10 psi like its set for. also when i let the rpms come back down to idle there is a rattle comming from the arround the turbos? any sugestions will help. thanks
#4
The Power of 1.3
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WTF?! I thought the primary needed to make at least 8lbs of boost for the secondary to work at all. How is it possible to operate the TCA without boost from primary turbo?
#6
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This may sound silly but you sure you didnt swap some hoses around and accedentally put it in poor mans non seq ? lol
Wierd how your getting boost after transition with no pri boost. Sounds like you have some wierd vac line probs. Please be sure to keep us up to date on it, I'd like to know what the fix was.
STEPHEN
Wierd how your getting boost after transition with no pri boost. Sounds like you have some wierd vac line probs. Please be sure to keep us up to date on it, I'd like to know what the fix was.
STEPHEN
#7
rotary sensei
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My buddy had the same problem. The actuator rod on the turbo wasn't adjusted correctly. You can try and spin it but it may be to rusted. We just redrilled the rod so it would fit over the pin. It rattled and he had zero boost due to the door being open, this fixed it .........
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#8
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thanks for the info guys. i'm taking the car back to where i got the work done at. we will be checking them out today. i hope its somthing stupid.
#9
NorCal 7's Co-founder
Well, you can bet that it's nothing wrong with the turbos. I haven't heard of anyone yet who had a problem with BNR upgraded twins. There have been a few instances of them being installed wrong though. Best of luck to you and I hope that you'll be enjoying the newly added power soon. Laterz.
Zach
Zach
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0psi on primary would mean that the Charge control valve is open and the actuator is not funtioning or the vacum hose on their is not on correctly or leaking. Check that first. Start the car and see if the CCV rod is pulled in? If its not pulled in than the Y-pipe is accepting air from both primary and secondary before 4500rpm
2nd thing could be that BNR did not adjust the wastegate after porting it and left it ajar causing exhaust. That should still give you some primary so its probably not it unless your boost guage is bad.
2nd thing could be that BNR did not adjust the wastegate after porting it and left it ajar causing exhaust. That should still give you some primary so its probably not it unless your boost guage is bad.
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well after about 75 miles the primary boost is working now i was just driving and it started to work. as for the rattle its the turbo control actuator rod. thanks for the help guys i just need to figure out how to get rid of the rattle.
#13
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Originally posted by airn
well after about 75 miles the primary boost is working now i was just driving and it started to work. as for the rattle its the turbo control actuator rod. thanks for the help guys i just need to figure out how to get rid of the rattle.
well after about 75 miles the primary boost is working now i was just driving and it started to work. as for the rattle its the turbo control actuator rod. thanks for the help guys i just need to figure out how to get rid of the rattle.
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