Blow off valve, Pro's and Cons

[T-Type Mike]

Okay guys I need to hear from anyone who has this done to their GN's. I have never seen or heard one on our cars. Are they worth it or not?? ANy info is greatly appreciated!, Thanks Mike

 

[325DR]

There have been a few posts on here about BOV's. Here are a few.....

http://www.turbobuick.com/forums/showthread.php?s=&threadid=20818&highlight=BOV+OR+blow

http://www.turbobuick.com/forums/showthread.php?s=&threadid=28607&highlight=BOV+OR+blow

http://www.turbobuick.com/forums/showthread.php?s=&threadid=28263&highlight=BOV+OR+blow

http://www.turbobuick.com/forums/showthread.php?s=&threadid=26018&highlight=BOV+OR+blow

 

[T-Type Mike]

Thanks for your help, much appreciated, Mike

 

[GNracer2000]

If you have an upgrade turbo I would get one for it. It is cheap insurance to keep your turbo working well. It depends though on how hard you drive the car too, but I still would. I have one on order for my new turbo I'm getting. I'm not taking any chances.

 

[wh1-Denver]

GNracer2000
Where are you getting your BOV, how much$$$, will you have to custom install or is there a complete bolt on kit?
I have a TE-61 that sounds really loud when I let off the gas.

 

[GNracer2000]

I decided not to get one now since I really don't run my car hard. I do know that ATR and ANS Performance sell kits for the. Kind of costly and you do need to weld a bung into the IC pipe.

 

[wh1-Denver]

Do you have ANS Performance's website or ph#?

 

[TURBOV6]

There are many out there and I seen some that cost less than $100 with the weld flange. Welding the flange is cheap, ask your friends if they know of anybody that welds.

 

[clean86]

I would run a BOV on anything with a turbo or blower. keep in mind that any time you are making boost and you lift off the gas all the air between the compressor and t-bodyrushes back to the compressor wheel and tries to stop it even though the turbine wheel is still being turned by exaust , not good!! this is the main reason for thrust issues and seals going. So if you like to rebuild turbo's I wouldn't buy one, if you want to keep it bolted down get one.

Good Luck.

 

[granatl]

I think the BOV is optional, depending on the manufacturer of the turbo. If the turbo includes the John Craig 360 thrust bearing, I really feel that the BOV isn't needed. I've had one of his TE-60's for over 2 years (car not running the whole time), and it's still solid. The turbo typically was run 25+ PSI on both strip and street, and everytime I hear lots of boost flutter.
In comparison, I did the same to my stock turbo, a stock rebuild, a TE-44, and all lasted <6 months. It ruins the normal thrust bearing quickly.