Hi just seen your comment do you know much about the 2000 wrx bugeye I need some advice. If you can help 👍 thanks

I done this to a 1.8T Golf back in the day, was stock other than said stuff and a miltek, dude, the noises that used to put out, holy!

Giorgi Leluashvili I just think of it as one, because it's all good content

Word!

they have the best dose

yeah a holden with a nissan motor isn't sacrilage on its own eh

Have you adjusted the spring pre load?

I have the one before that and it's ment to be hybrid dual port full atmosphere 50/50 non adjustable but can't get it right with idle I only have the adjustment screw to go bye.

BULLI KID data logging on a computer or dyno

What exactly are you looking for while data logging that will indicate you need to tighten or loosen BOV.

too much horsepower, use at own risk.

How about no

The whistle tip makes it go WOOOOOOOOO!

ndh8 it is operating above the surge line. as the air has nowhere to go (throttle is closed) the compression ratio increases greatly (y axis on a compressor map) and then stalls as the ratio is too high.

ndh8 you are correct. But so many people are dumb and always call this "compressor surge" and bash you when you try to explain otherwise, its easier to just play along.

norflett Well it is the same basic principle causing turbo barking.

Both are "compressor surge." The flutter when you lift your foot is just the additional compressed air escaping through the turbo. Open throttle compressor surge is the bad one, that's when you're under load and it flutters. Which is as you said, turbo boosting incorrectly. Producing more compressed air than the engine can physically take. THAT type of compressor surge is bad for the engine. Turbo flutter is not bad.

If you adjust the spring preload you have have full atmosphere, recirc or anywhere in between

Yuuyia Takahashi how would making your turbo flutter be ricing?

Braskus saw somewhere that you shouldn't surge more than 7-8 psi

Braskus running no bov on a 1jz at 24psi for 2years plus with a gt35r , zero issues

It literally does no harm to your car. I've seen cars with 20+ psi with NO bov. It's just a myth. If you have a really, really cheap and nasty turbo, maybe it will shorten the overall lifespan. But by fuck all

It's probably easier to just set a BOV to do it rather than to remove and block off the factory BOV. Aside from that, having the BOV in place means you can switch whenever you need to.

You start by having a throttle body

It slightly aids with spool, as the compressed air isn't fully expelled (like with a bov) it doesn't need to re-compress the air in the intercooler and so on. Personally I believe it gives slightly better response, but nothing major.

aaaah, yea that makes sense... I guess they figure it takes slightly less time to spool the turbo back up (because lol anti-lag) than it does to re-compress the induction plumbing. Then there's the advantage that when you step on the gas pedal, there'll be a volume of air already at the manifold for the engine to suck in. Sticking to my standard re-circ valve and a cone filter for the noise myself, but ye, TIL.

Iz Freaky I agree and when your slamming gears there's barely any time for surge anyway so bovs actually aren't that important imo.

A boost controller is designed to help keep boost in the system without surge though. Pretty sure that's more effective than surge.

No, a boost controller manages the amount of boost the engine builds up while you're on the gas (power). Compressor surge and Dump valves are about managing how quickly you get back on boost after lifting off the gas (response). However, if someone's looking to get some more power- I'd start with a boost controller before tinkering with surge and stuff as well.

for the best dose noises i.e: vl turbo, you need stainless piping, not plastic crap, and a short "dosepiope" directly on the front of the turbo

The longer your piping, or the thicker the diameter, (more space for air to fill) the louder and longer the dose will be. Having stainless piping between the turbo and filter helps a lot with the volume, and running a pod or similar filter rather than the stock air box. Even a standard wrx with a stainless/aluminium pipe from turbo to pod, will make it much louder.

just delete the BOV entirely. no need to spend money lol

Ryan Romanoski yeah I already have a block off plate in there but to be honest since I already have a response also, being able to just twist for dose is blessed instead of having to put a plate in every time

KronicKatz true styll, figured you was tryna find the whole shits.

Depends on vehicle, Subaru ECUs freak out when you vent to atmosphere and dump fuel during shifts thinking its lean, makes loud explosions. Converting to speed density will allow you to do what ever you want to the blow off valve.

anthrax704 you won't have as much response between gears, as there is no air re-circulating ready to enter once you grab the next gear and open the throttle up

ndh8 but dont you already have air ready to grab on the inlet of the turbo? Considering you have about 14-15psi of natural pressure from the atmosphere? I thought the one and only true purpose of a BOV was to release manifold pressure and back pressure on the turbine built due to the turbine still compressing air once the throttle body is shut closed.

@@ndh8445 the recirculating air doesn't re-enter anything, as it comes out on the non pressure side anyway. If anything, no bov would have less lag due to there still being FULL pressure in the piping as it's fluttering. The whole "it recirculates air so it's ready to be taken in again" is bollocks. It comes straight back out of the air filter

Look near the exhaust ports for cylinder 8

No, it's not.

Joseph Kaufman 😱 so where does that air go

snooopy365 plug the hose

That's bad for his business.

What about compressor surge?

I just blocked off my factory blow off valve completely. Doses hard now

Wadamish blocked it with what?

He said at the end of the video that it puts extra strain on some of the components, but it's unlikely to cause failure on it's own, as people have been doing it for years without issues.

It does cause increased wear to bearings and its internals.

Driving your car causes wear.

Yes, driving your car does cause increased wear.

So driving your car causes more wear then just driving your car? That's what you just said.

Where did I say that?

sjoerd918273 I have cancer, now im dead

Grant Cassar venting to atmosphere is illegal, blocking off your bov so it flutters isn't illegal

Sama R yep you're right. Op has no idea

Blocking your BOV is not illegal in any way. Running an atmospheric venting bov is illegal, because they claim it puts unfiltered engine gasses into the air. Which we all know is ridiculous. But anyway, Recirc bov is fine, blocked bov or no bov is fine, atmospheric venting bov = illegal.

Thishan Dissanayake brett