# BOV Illegal? **URL:** \ **Category:** SON240sx Automotive\ **Created:** [January 1, 2008, 4:07pm UTC](https://forums.speedlife.net/t/bov-illegal/112143 "2008-01-01T16:07:40Z")\ **Posts on this page:** 1\ **Showing post:** 19
**Author:** ![BAS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bas/32/5540_2.png) [@BAS](https://forums.speedlife.net/u/BAS)\ **Post date:** [January 4, 2008, 12:14pm UTC](https://forums.speedlife.net/t/bov-illegal/112143/19 "2008-01-04T12:14:55Z")
the jake comment was put up as a possible reason for what he heard… thanks though for trying to teach your grandma how to suck eggs… :rolleyes: > [@Home game](https://forums.speedlife.net/t/home-game/15413/2): > > Trucks Definitly DONT have BOVs. LMAO… Diesels DOnt even have VACUME to run a bov… They dont have a throttle body. My buddie Once asked me to put a BOV on his TDI VW and I was like dude… it impossible… They dont have vacume to open the bov up. > > AND a ENGINE BRAKE or JAKE or EXHAUST RESTRICTOR… IS NOTHING to do with turbo or incomming air… on a restrictor… it just restricts the exhaust gasses from leaving the engine. > > a jake is a lil more complicated as it actually changes the valve timing to hardly even open the exaust valves. So this creates a huge restriction on the engine THUS slowing the truck down with out applying the brakes. > > Jakes are just soo much fun down shifting and using the jake with open mufflers through residential areas… OO I love it… > > I used to drive truck all the time. now i do it on a part time thing. so I know about these things. > > AND TRUCKS DONT have bovs on there brakes… the air brake system on a truck runs about 130 psi… The operating limit on turcks is like 70 psi… any thing below that the emergency/ parking brake starts engaging so the brakes will be draging… > > ALSO as for emmisions. the truck air brake system has nothing to do with the engine. the truck has a air compressor on board. so that air escaping does not have any carbon/oil or any other contaminates from the engine. > > Unlike venting to atmosphere on a turbocharged gas engine. --- _[View the full topic](https://forums.speedlife.net/t/bov-illegal/112143)._