Newb question.

[RichardBBY]

actually i dont think even our dsms dont need a bov. I was actually thinking off blocking mine off when i go to the track, that way it holds a little more boost between shifts. (not sure if this will work or not on our cars)

I think this would be a bad idea. When you shut the throttle during shifts that air that is now pressureized and flowing through all of your pipes will have no where to go other then back towards the turbo. That rush of air back towards the turbo will cause the turbo to violently slow down, which is exactly the oppisite of what you said your trying to acomplish.

just my 2 cents.

[1ViciousGSX]

I was going to say something, but this thread is retarded.
Love it!! :ring:

It really has to do with location of the TB in relation to the supercharger or turbo. Close the TB on a supercharger and you immediately have vacuum on both side of it. And the supercharger speed is based directly on crank speed. Turbo chargers stay spooled longer and need a place to release the excess pressure between shifts to maintain high turbo shaft speeds. This helps reduce turbo lag between shifts and removes excess stress on the turbo.

[crazy_skier]

I think this would be a bad idea. When you shut the throttle during shifts that air that is now pressureized and flowing through all of your pipes will have no where to go other then back towards the turbo. That rush of air back towards the turbo will cause the turbo to violently slow down, which is exactly the oppisite of what you said your trying to acomplish.

just my 2 cents.

This is true, but at the track people are also shifting much quicker, or if using dsmlink there is nlts and then the throttle will not be closed at all. I have haerd of removing the bov for the track also though on high boost applications, since it does keep the pressure in the pipes and makes cars a little more responsive when shifting quickly. I would reccomend feathering off the throttle after crossing the mark for whatever distance your running so you dont cause huge compressor surge

[RichardBBY]

Your right, i could see how No Lift To Shift would make this a worth while modification for track use. He didn't mention using nlts. If anyone has ever driven a SRT4 with out any blow off valve, like they come from the factory, they have felt how badly that car falls on its face during the 1 - 2 shift. I would imagin the same problem would be felt if you were to unhook your bov. Unless of corse when you say high boost, you mean 25 to 30 pounds, in that case I would not know sence I personaly have never driven a car with that much boost.

theres a few more cents for ya! :wink: