BOV or Relief valve

[kirkallen143]

Howdy,
Are a relief valve and a blow off valve the same, such as in the GReddy brand. One is $89.00 and then they jump to about $200.00, just trying to pinch the funds at the last. Thanks fellers.

Kirk ' 73 bronco

 

[Anonymous]

BOV will release the pressure when the throttle closes so the turbo doesn't get damaged

Relief valve just pops when certian psi is reached.

I bought an "el cheapo" chinese BOV on ebay, it is working very well and has a nice sound. You can see it in my thread "another turbo 200 nears completion"

 

[Anonymous]

for a bov i would recommend a greddy type-s. they are in very well standing in the import world. plus they are closed loop so they will be smoother than an open loop would. a nice noise but nothing you can hear from a block away. GL on your search.

 

[Anonymous]

Mine looks like the one Will and Kelly are using in the picture below, but has two horns instead of one. The sound is awesome!

 

[Anonymous]

plus they are closed loop so they will be smoother than an open loop would.

That only applies to EFI cars with a MAF sensor.

All others....Let 'er BLOW!!

 

[Anonymous]

ah i see, then nvm. only advantage to using the type-s is a more mild sounding BOV. if you want to wake up neighboors go with an open loop.

 

[Does10s]

Ya we're using the TurboXS RFL (Really Frigin' Loud! )
It's great! Floor it, smoke a 5.0, then lift and scare the Bejesus out of people at the bus stop!
Will

 

[Anonymous]

Ive heard the HKS BOVs are good accurate ones as well. They are actuated off of a reference applied to a diaphragm, not the pressure applied to the valve itself.

 

[kirkallen143]

The BOV line does go to the manifold side of vacuum on the engine? I know it does just wanted to ask to make sure.

Kirk '73 bronco

 

[Anonymous]

The BOV line does go to the manifold side of vacuum on the engine?

Yes.

I tee'd into the brake booster line for mine.

 

[kirkallen143]

I sure do appreciate that, kind Sir.

 

[xzerokidx]

A stock mitsubishi eclipse bov works very nicely, its cheap, and is readily available.