Nissan 370Z Forum - View Single Post - Do blow off valves need to be cleaned on S/C car?

kentmo280z · 02-21-2017, 01:31 PM

I've tried 4 different BOV's on my GTM supercharged setup. Turbosmart was the worst for fluttering., Then tried Synapse Diverter valve. I finally found a Tial QRJ that does not flutter,but was loud as I did not circulate it after upgrading my S.C. to Stage 1.5.
My remedy has been to attach a K& N filter on the BOV output flange and wrap that filter with some 1/2 foam. That really quieted things down.
I'd recommend a maintenance / cleaning -lubricating about as often as changing the oil .Or even more frequently. They do stick and using the turbomsart lube does a nice job also..

02-21-2017, 01:31 PM	#17 (permalink)
kentmo280z Base Member Join Date: Sep 2014 Location: Akron , Ohio Posts: 199 Drives: '10 370Z Roadster Rep Power: 11	I've tried 4 different BOV's on my GTM supercharged setup. Turbosmart was the worst for fluttering., Then tried Synapse Diverter valve. I finally found a Tial QRJ that does not flutter,but was loud as I did not circulate it after upgrading my S.C. to Stage 1.5. My remedy has been to attach a K& N filter on the BOV output flange and wrap that filter with some 1/2 foam. That really quieted things down. I'd recommend a maintenance / cleaning -lubricating about as often as changing the oil .Or even more frequently. They do stick and using the turbomsart lube does a nice job also..