My Experience with Bypass Valves
#1
My Experience with Bypass Valves
Last night I changed out my Forge Motorsport 007P for a Perrin Signature Series Blow Off Valve both are recirculating valves. The Forge valve made a the stupidest sound i've ever heard. It's sounds like a hammer hitting an anvil. It drove me nuts it seemed to work just as it should but I couldn't stand the noise it made. I was fortunate enough to findan old Perrin BOV forsale on a local board. Man!! this thing sounds way better just a slight woooosh noise. I just wanted to give a brief review of these.. The Forge valve works well but sounds like ***.. Perrin works well and sounds like sex with Alison Armitage.
#14
The 007 is a direct replacement for the valves used on the VAG 1.8T, so I don't know what instructions you are referring to. Which happens to be the Bosch 25mm valve. The OEM unit is installed on the 1.8Ts with boost entering the side port and exiting the bottom, this is how the 007 should be installed. The face of the piston on the 007 is concave, the sound you are hearing is air whistling across this depression.
The valve will work either way but it will make that sound if you install it with boost entering the bottom. There is a huge group amongst the VAG guys that install them "reversed" for the sound...
Regardless, we offer a lifetime satisfaction guarantee so if you aren't happy, which you obviously aren't, you can return it for a refund. Even though, from what I can tell, you had the thing installed "wrong".
#16
The 007 is a direct replacement for the valves used on the VAG 1.8T, so I don't know what instructions you are referring to. Which happens to be the Bosch 25mm valve. The OEM unit is installed on the 1.8Ts with boost entering the side port and exiting the bottom, this is how the 007 should be installed. The face of the piston on the 007 is concave, the sound you are hearing is air whistling across this depression.
The valve will work either way but it will make that sound if you install it with boost entering the bottom. There is a huge group amongst the VAG guys that install them "reversed" for the sound...
Regardless, we offer a lifetime satisfaction guarantee so if you aren't happy, which you obviously aren't, you can return it for a refund. Even though, from what I can tell, you had the thing installed "wrong".
The valve will work either way but it will make that sound if you install it with boost entering the bottom. There is a huge group amongst the VAG guys that install them "reversed" for the sound...
Regardless, we offer a lifetime satisfaction guarantee so if you aren't happy, which you obviously aren't, you can return it for a refund. Even though, from what I can tell, you had the thing installed "wrong".
It’s nice of you to assume I’m screwing up and not your product.
#19
Hmmm.... This is a timely thread for me. I need to try mine both ways and see what I like better. Right now I have the boost entering the bottom and it makes a sound that could be described as a ring. It is kind of annoying and I would like to get rid of it. If changing the valve configuration makes a significant difference in the sound I will try to do a before-after video clip. Don't hold your breath though as I may not get to it for a week or so.
#20
I just got home and opened up the valve. It appears to be missing one of the O-Rings. Correct me if i'm worng but it should have two in the main body and one sealing the top?
This service PDF shows an 006 so it might be different.
http://www.forgemotorsport.com/valve_service.pdf
This service PDF shows an 006 so it might be different.
http://www.forgemotorsport.com/valve_service.pdf