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I have a couple of Blitz dump valves but they are on the outer pipes but....... these are on the inner ones.

 

Is mine wrong??

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looks fine to me, have seen them same as that before. i doubt whether they would fit opposite anyway.

I have a couple of Blitz dump valves but they are on the outer pipes but....... these are on the inner ones.

 

Is mine wrong??

 

They are absolutely fine! In fact, they should be mounted as close to the throttle bodies as possible, ie - the inner pipes. The only reason why the majority of BOV's are fitted to the outer pipes is that somewhere along the way someone said that by placing them on the inner pipes you're introducing an imbalance in the system which will cause the car to idle and perform badly. Although it is theoretically possible I have yet to come across a car that's exhibiting those symptoms due to the installation of a pair of BOVs on the inner pipes.

 

An alternative is to link the two inner pipes by hard pipe and run a single BOV off that. Also works well and there is plenty of space (for a change)! You'd be hard pressed to fit your style of BOVs in the space on the sides of the outer pipes.

 

ATB

 

Dan

  • Author
They,re Blitz in my sig pic , sound very good :hyper: :hyper:

 

that's same as mine, i got a tad on the poop side when i saw that pic and thought huh??? are mine wrong haha

  • Author
They are absolutely fine! In fact, they should be mounted as close to the throttle bodies as possible, ie - the inner pipes. The only reason why the majority of BOV's are fitted to the outer pipes is that somewhere along the way someone said that by placing them on the inner pipes you're introducing an imbalance in the system which will cause the car to idle and perform badly. Although it is theoretically possible I have yet to come across a car that's exhibiting those symptoms due to the installation of a pair of BOVs on the inner pipes.

 

An alternative is to link the two inner pipes by hard pipe and run a single BOV off that. Also works well and there is plenty of space (for a change)! You'd be hard pressed to fit your style of BOVs in the space on the sides of the outer pipes.

 

ATB

 

Dan

 

Thanks that's really handy to know, i might go for that setup at a later point me thinks

Mine are on the inner pipes and never ever had any stalling, lumpy or idle problems! That is where they're supposed to go for them to do the job properly and not just for noise!

  • Author

That totally blows away my understanding on how dump valves work.

 

I thought they had to go after the turbo to relieve the pressure from the turbo, so how do they work before the throttle bodies?

 

i really don't understand how that would work as surely you want as much air to get to the throttle bodies as possible and for it not to release any??

 

I think my understanding on what dump valves do and how they actually work is completely wrong. i'm a doofus. nope a very cunfused doofus.

  • Author
They still are after the turbos, but before the intercoolers.

 

omg really??

 

i am stupid, i always thought it went from the air filter into the throttle bodies wizzed around the engine and out into the turbos then the exhaust. not sure where in line the intercoolers sat.

 

haha i have really learnt something valuable today. what a dim bum :rofl:

Am sure it goes into the filter, splits to the turbos, out the turbos and into the inter-coolers and then into the throttle bodies mate. But I may be totally wrong. :smash:

  • Author
Am sure it goes into the filter, splits to the turbos, out the turbos and into the inter-coolers and then into the throttle bodies mate. But I may be totally wrong. :smash:

 

 

haha that sounds much better than what i thought. i feel dooopid now.

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