Blow Off Valves

[Ralph Wiggum]

i wasnt running a bov when i fitted my nizpro kit and the turkey gobble was ridiculous..i fitted my vee port and now i get and semi asmatic weeze on occasion,a fooly sick PSSHT sometimes and a goble goble of the same intensity so i really didnt achieve anything..... mind tou i dont think running the vacum signal to the bov off a shared vacum source does it much good....the pod filter onto the turbo is the best noise mod you can do....nothing says "dont phuck with me" like the whistle these things make under boost...

[IH8TOADS]

If it gobbles then it aint flowing enough Hiddeous. Its coming back out the filter as well I reckon.

Are you using the same vacuum point as std??

[Ralph Wiggum]

nah i have tried a couple of different vacum points. i think the bov might need a strip down and lube up. Im also going to drill and tap a dedicated vacum supply on the manifold for the BOV. Turbo smart recommended trying that and if that failed going to a slight softer spring from a plumb back bov. The where actually very helpful when i emailed them a querry and got back to me very quickly. Ask Steve how loud the gobble gobble is...he got to hear it up close a couple of times on sat'd night...hehehe

[Guest newl]

  Quote

Ask Steve how loud the gobble gobble is...he got to hear it up close a couple of times on sat'd night...hehehe

I think most of us that were there could vouch for how loud it was.

Though that being said, mine isn't all that quiet for a stocker either. hehe

[Ralph Wiggum]

Your not wrong there Newl....i was very surprised at how loud yours was....

[Ninka]

  IH8TOADS said:

If it gobbles then it aint flowing enough Hiddeous. Its coming back out the filter as well I reckon.

Are you using the same vacuum point as std??

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That's why I run 2 BOV's.

The standard plumb back is good for lower boost levels, and almost eliminates the blow back through the turbo, and the V-Port is set fairly tight, so that it only blows off on pretty serious boost levels, so I avoid too much attention from the cops

[quigebo]

  Goobz said:

When you have a turbo doing up to 60-100,000RPM. I highly doubt you will get back spin...

RPM will decrease, but it will not back spin.

Also afaik the nizpro stage 2 kit runs no BOV is this correct for 390fwkw...

Chris

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cha cha cha.. used to get told it was bad in my other turbo car.. does anyone have any real examples of with and without bov turbine failure?

I have the nizpro kit and no bov.. doesnt even come with one! with the zf auto you can drive it quiet or loud(not fast obviously!)..

like f6 said that massive inlet noise with a big pod just about drowns out everything..

and yeah hiddeous, jump on then off the gas and it scares the crap out of people.. over 20psi trying to escape will do that mines chatters for nearly 15-20 seconds when its on full boost when throttle closes..

Edited 06/11/06 12:37 PM by quigebo

[IH8TOADS]

http://www.fordxr6turbo.com/forum/index.ph...pic=24608&st=18

this is the little test I did on bugger all boost. My comparison is in there somewhere.

[jEtONiT]

sound clips please

[Evil F6]

If you want stealth is there any problem with not venting to the atmosphere and plumbing back into the intake? Why do most prefer venting to the atmosphere? I like the sound of some BOV's but why give the cops yet another reason to hassle you!