Topgunz - air to air upgrade

bikeking · 08-03-2017, 10:07 PM

My blow off valve is open almost all the time, unless I really am into the throttle. Lite cruising it's fluttering, once it hits 3500+ it's really dumping out when I'm in the throttle and climbing in rpm, like anything less than 80% throttle input it is wide open, any thoughts? Test pipes and 9 lb pulley so I'm not running as much boost as most, should my spring be stronger than the 1.5? Seems to run fine other than jerking on the highway because the valve keeps fluttering

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bewhitey · 08-05-2017, 08:48 AM

well mr king of bikes, I have a tial QRJ on mine and it is quiet as soon as you press the gas pedal from idle (while in gear). Let off the throttle and it dumps immediately very loudly and gets quieter as the RPM lowers as you would expect. I get very light fluttering while cruising around 2k to 3k rpm, not accelerating or decelerating.... doesn't effect driveability, just something you can barely hear with the windows down. I can't remember the spring on mine, I just bought what TopGunZ told me to get. I am no expert but if your boost is exhausting while in throttle I would think your spring is too strong and is requiring more boost pressure at lower RPM to shut. Or something is installed wrong. Maybe let the guys know what BPV / BOV your using and someone could shed some light on it.

bewhitey · 08-05-2017, 08:49 AM

Mine is stock pulley.... so only 8 lbs of boost too

bikeking · 08-10-2017, 09:21 AM

Quote:

Originally Posted by bewhitey

well mr king of bikes, I have a tial QRJ on mine and it is quiet as soon as you press the gas pedal from idle (while in gear). Let off the throttle and it dumps immediately very loudly and gets quieter as the RPM lowers as you would expect. I get very light fluttering while cruising around 2k to 3k rpm, not accelerating or decelerating.... doesn't effect driveability, just something you can barely hear with the windows down. I can't remember the spring on mine, I just bought what TopGunZ told me to get. I am no expert but if your boost is exhausting while in throttle I would think your spring is too strong and is requiring more boost pressure at lower RPM to shut. Or something is installed wrong. Maybe let the guys know what BPV / BOV your using and someone could shed some light on it.

After driving it for a day it started working fine, I think maybe because it was used kit it was gummed up or sticking, but it's the qrj with the 1.5 spring from topz, I just bought it used from chasez

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08-05-2017, 08:48 AM	#2 (permalink)
bewhitey Base Member Join Date: Dec 2015 Location: Denver Posts: 78 Drives: 370z 40th #704 M6 SC Rep Power: 11	well mr king of bikes, I have a tial QRJ on mine and it is quiet as soon as you press the gas pedal from idle (while in gear). Let off the throttle and it dumps immediately very loudly and gets quieter as the RPM lowers as you would expect. I get very light fluttering while cruising around 2k to 3k rpm, not accelerating or decelerating.... doesn't effect driveability, just something you can barely hear with the windows down. I can't remember the spring on mine, I just bought what TopGunZ told me to get. I am no expert but if your boost is exhausting while in throttle I would think your spring is too strong and is requiring more boost pressure at lower RPM to shut. Or something is installed wrong. Maybe let the guys know what BPV / BOV your using and someone could shed some light on it. __________________ Vortech SC\|Stillen Sway Bars+Facia+Skirts+CB Exhaust\|Z1 Clutch+CSC Elimination Kit\|ACT LW Flywheel\|Tein Coils+EDFC\|SPL Camber Arms\|RJM Clutch Pedal\|TWM Short Shifter\|Morimoto Switchback LED's\|Z1 34 Row Oil Cooler\|AIR 2 AIR\|E85 Flex Fuel\|460 whp TheBoostCreep

08-05-2017, 08:49 AM	#3 (permalink)
bewhitey Base Member Join Date: Dec 2015 Location: Denver Posts: 78 Drives: 370z 40th #704 M6 SC Rep Power: 11	Mine is stock pulley.... so only 8 lbs of boost too __________________ Vortech SC\|Stillen Sway Bars+Facia+Skirts+CB Exhaust\|Z1 Clutch+CSC Elimination Kit\|ACT LW Flywheel\|Tein Coils+EDFC\|SPL Camber Arms\|RJM Clutch Pedal\|TWM Short Shifter\|Morimoto Switchback LED's\|Z1 34 Row Oil Cooler\|AIR 2 AIR\|E85 Flex Fuel\|460 whp TheBoostCreep

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08-03-2017, 10:07 PM	#1 (permalink)
bikeking Base Member Join Date: Oct 2012 Location: alberta Posts: 35 Drives: 09 nissan 370z bl m6 Rep Power: 14	My blow off valve is open almost all the time, unless I really am into the throttle. Lite cruising it's fluttering, once it hits 3500+ it's really dumping out when I'm in the throttle and climbing in rpm, like anything less than 80% throttle input it is wide open, any thoughts? Test pipes and 9 lb pulley so I'm not running as much boost as most, should my spring be stronger than the 1.5? Seems to run fine other than jerking on the highway because the valve keeps fluttering Sent from my iPhone using Tapatalk