lol, and this makes you faster?
Downpipe how-to?
- Thread starter MM BOOST
- Start date
lol, and this makes you faster?
but the hybrid was designed to have both...its in normal recirc under normal load, but when it is WOT, then its vented. In this case, the blow off valve doesn't make a difference. Vented causes backfires and s*** in normal everyday driving. Hell my forge backfires at WOT and its recirculated, so I don't think that will make a difference. The turbo xs hybrid is in the mail on its way to me.
Hopefully the Forge will soon be the same way
As it will my friend! I was just going to wait for the txs to come in and ship yours out in that box, but the guy is taking so long so I am popping the stock one on and sending yours out instead. I hope I get the txs before I go out of town friday, or its 2 weeks with stock bpv
Exactly. Unless you can prove the stock BPV is leaking, no need to replace. If it is leaking get a good strong BPV or if you get a hybrid, run it in full recirc mode.
But the vent to air does not cause a lean condition, it causes the mixture to be too rich. This is because the MAF has already measured the mixture and sent it to the ECU.
The dump of post-MAF air to atmosphere occurs after the MAF has already measured that air and calculated the amount of fuel to send through the injectors. The ECU tells the injectors to shoot the proper amount of fuel for the air charge it THINKS it is sending through the intake valves. But some of that air is now missing, so the engine gets too much fuel and runs rich.
In an engine that is already running too rich, this makes matters worse, not better, IMHO.
Seems like a timing issue to me ( not ignition timing ).
The BPV opens up when you are in boost and suddenly let off the gas.
What confuses me is the recirc fitting from the BPV is behind the maf sensor assembly and ahead of the turbo intake. The whole pipe at this point is open to atmosphere technically.
When the BPV opens up, you dump boost into the pipe and any air that the motor doesn't need at that time is going to come out the air filter.
It really seems to me to be not a whole lot different than venting to atmosphere, save for any potential for there to be a vacuum in the intake pipe at the time the BPV opens IE you are back in the throttle.
Maybe the pops and backfires from a VTA type are at this point, right when you're back in the throttle and the motor is looking for that air?
Usually it's rich - loose power and maybe stutter and lean ( lean is mean ) you gain power to a point and then backfire.
I'm still stock so I can't say personally with this car what it even sounds like with an aftermarket BPV. Only seen vids on youtube etc.
The BPV opens up when you are in boost and suddenly let off the gas.
What confuses me is the recirc fitting from the BPV is behind the maf sensor assembly and ahead of the turbo intake. The whole pipe at this point is open to atmosphere technically.
When the BPV opens up, you dump boost into the pipe and any air that the motor doesn't need at that time is going to come out the air filter.
It really seems to me to be not a whole lot different than venting to atmosphere, save for any potential for there to be a vacuum in the intake pipe at the time the BPV opens IE you are back in the throttle.
Maybe the pops and backfires from a VTA type are at this point, right when you're back in the throttle and the motor is looking for that air?
Usually it's rich - loose power and maybe stutter and lean ( lean is mean ) you gain power to a point and then backfire.
I'm still stock so I can't say personally with this car what it even sounds like with an aftermarket BPV. Only seen vids on youtube etc.
