I use to have a Tial VTA BOV and thought that it was causing my car's boost to get fluttery and jump up and down at PARTIAL boost.

half throttle around 10-15psi

so, i redid the piping and converted over to a new Tial Alpha Q recirculating BOV...thinking it would solve my issue...

well, same exact thing...if i go partial throttle and try to accelerate at 10-15psi getting onto a highway or something, it starts to flutter or the boost will jump up and down, as if it can't hold partial boost.

Wide open throttle is fine and 5psi partial throttle is fine.

Any ideas? Want to figure it out before retune.

For reference...im full bolt on, mainly AMS ****, cossy cams, FP ported Red, 750cc injectors, AMS cold air, FMIC, all IC pipes...pretty much all bolt on stuff

 

I'm getting the same thing...

 

What was wrong with the stock DV?

 

nothing...but i will be running like 28psi...and when i had bought the BOV i wasnt aware of the stock BOV's capabilities.

i think it would be a real PITA to swap back to stock DV now....but what do you think?

 

Stock BOV leaks once you hit 25 psi....that's why I changed.

 

log of said incident?

 

i have no way to log

i could post video of my boost guage, lol

 

bump