Do blow off valves need to be cleaned on S/C car?

TopgunZ · 02-21-2017, 10:41 AM

Easiest thing to do is just let me have it all sent to your house. I think you have the earlier version when i still had the 45* coming off the supercharger into a 2.5" right?

Kamillio · 02-21-2017, 10:45 AM

Yes, let me PM you.

turtle64b · 05-06-2020, 06:46 PM

Can anyone link to cleaning instructions for the QRJ? I am getting terrible flutter when cruising under partial throttle.

Thanks!

Optimiser · 05-07-2020, 01:13 AM

Quote:

Originally Posted by turtle64b

Can anyone link to cleaning instructions for the QRJ? I am getting terrible flutter when cruising under partial throttle.

Thanks!

Have you always had that flutter at that speed on a highway or is it new?

The reason I ask is because I have a Tial bov on my a A to A, SC setup and on a highway (on cruise control at about 60MPH/100KMH) when boost is 0 it flutters continually unless I back off or accelerate (changing from negative or to positive boost) then it stops. It's not because it needs cleaning, it is it's normal operation.

turtle64b · 05-07-2020, 02:03 AM

It's either relatively new or it has become much more noticeable. I drive a 70mph road to and from work everyday and the flutter is incessant. Most likely for the reason you described. I've been contemplating going to an over-pressure BOV setup (opens at 12psi, for instance, but remains shut otherwise), this may be the sign haha

redondoaveb · 05-07-2020, 09:13 AM

Quote:

Originally Posted by turtle64b

It's either relatively new or it has become much more noticeable. I drive a 70mph road to and from work everyday and the flutter is incessant. Most likely for the reason you described. I've been contemplating going to an over-pressure BOV setup (opens at 12psi, for instance, but remains shut otherwise), this may be the sign haha

What psi spring is in it?

turtle64b · 05-07-2020, 04:21 PM

Quote:

Originally Posted by redondoaveb

What psi spring is in it?

The 1.5, I believe. The one that shipped with the V1 Topgunz kit.

redondoaveb · 05-07-2020, 04:31 PM

Quote:

Originally Posted by turtle64b

The 1.5, I believe. The one that shipped with the V1 Topgunz kit.

When I had the fluttering issue with the qrj, I switched to the 3 psi and had no issues after that.

shawnberry45 · 10-26-2022, 05:55 PM

Glad I saw this post, having this issue with my SI upgrade. Which color spring is 3psi? Might have to do this ungrade. Getting fluttering between 2500-2900 rpm under acceleration. Performance is fantastic just an irritating noise in that rpm range

shawnberry45 · 10-27-2022, 12:47 AM

Quote:

Originally Posted by shawnberry45

Glad I saw this post, having this issue with my SI upgrade. Which color spring is 3psi? Might have to do this ungrade. Getting fluttering between 2500-2900 rpm under acceleration. Performance is fantastic just an irritating noise in that rpm range

Also does the QRJ need to be relubed when cleaned? if so which kind do you recommend?

02-21-2017, 10:41 AM	#1 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	Easiest thing to do is just let me have it all sent to your house. I think you have the earlier version when i still had the 45* coming off the supercharger into a 2.5" right? YzGyz likes this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

02-21-2017, 10:45 AM	#2 (permalink)
Kamillio Enthusiast Member Join Date: Mar 2015 Location: FL Posts: 445 Drives: N/A Rep Power: 53	Yes, let me PM you. __________________ 370z

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05-06-2020, 06:46 PM	#3 (permalink)
turtle64b Track Member Join Date: Jun 2015 Location: Granbury, TX Posts: 550 Drives: '11 SC Blue 7AT Rep Power: 3367	Can anyone link to cleaning instructions for the QRJ? I am getting terrible flutter when cruising under partial throttle. Thanks!

05-07-2020, 02:03 AM	#5 (permalink)
turtle64b Track Member Join Date: Jun 2015 Location: Granbury, TX Posts: 550 Drives: '11 SC Blue 7AT Rep Power: 3367	It's either relatively new or it has become much more noticeable. I drive a 70mph road to and from work everyday and the flutter is incessant. Most likely for the reason you described. I've been contemplating going to an over-pressure BOV setup (opens at 12psi, for instance, but remains shut otherwise), this may be the sign haha

10-26-2022, 05:55 PM	#9 (permalink)
shawnberry45 Base Member Join Date: Jul 2012 Location: Chicago, IL Posts: 67 Drives: G37 Rep Power: 14	Glad I saw this post, having this issue with my SI upgrade. Which color spring is 3psi? Might have to do this ungrade. Getting fluttering between 2500-2900 rpm under acceleration. Performance is fantastic just an irritating noise in that rpm range