How to adjust your dose! [GO FAST BRETT]
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- เผยแพร่เมื่อ 4 ก.ย. 2017
- Want to adjust your choo choo? In this video, we show you how!
This series is proudly brought to you by Mighty Car Mods and GFB
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![Is it safe to vent your Blow Off Valve to atmosphere? [GO FAST BRETT]](http://i.ytimg.com/vi/bsy9hJic7cQ/mqdefault.jpg)
A front mount intercooler, blocked bov, and a pod filter will give you louder, longer doses. Metal piping cause louder and more echoing flutters than silicone piping :)
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!
Good stuff with the second channel. If it wasn't faded by the main channel, it would be a good channel on its own
Giorgi Leluashvili I just think of it as one, because it's all good content
Drove my WREX atmosphere for a while, shotgun blast coming out of your tail pipe when short shifting next to a cop is not fun. Back to recirc for me!
Thanks for the great demonstration!
Excellent Brett.
Good car choice! I have an 05 WRX
Interesting and good video as always. Thanks!
You guys understand its not bad for such a surge on a turbo fitted with anti surge housings or have a full compressor shaft. I say this because IHI turbos found in Subaru's use a hollow shaft that is prone to breaking with repeated air slamming against the compressor wheel from the opposite side
How do you set the spring tension when you have a full recirculating BOV like the MARC2 BOV
Nice one Brett.
I have a suggestion for a new video. I have a Subaru BRZ with a rotrex supercharger kit (Jackson Racing) which has a very basic bypass valve. I noticed that the other rotrex kit for my car from kraftwerks uses a proper blow off valve, a lot of guys run a turbosmart Bov on them. What difference would switching to a BOV from a bypass make?
so, for turbo cars that aren't WRXs, just tighten the pre-tension screw to eliminate flutter and loosen for flutter? I have a ol' school Blitz super sound BOV from Japan
How do you adjust the GFB DV+??????? This one seems a lot easier to change.
Next pay I will be trying ut one of these babies for my Evo. was always againsy it due to no real informative explanations on setting the GFB up. CHeers dude.
Oh, so Dose-Vader doesn't just always have the clap, I've learned something today.
When it’s set to full atmosphere can you still put the trumpet on as well?
where did you got dat plug from??
Helpful video!
I feel like any dose video that doesn't reference the mighty VL is sacrilegious...
Word!
they have the best dose
yeah a holden with a nissan motor isn't sacrilage on its own eh
I watched you're video brought that the plug no does sound ?
Does the plug come with the valve?
Been doing that with my deceptor pro valve in my xr6t ute for a few years, since the cops defect me at the sightest glimpse of a trumpet.
dose vader is brett's father
This is great because I drive an 04 wrx
What about the belt driven supercharger,, same rule applies or you just won't get that flutter
what the size of the plug?
Did you get a tune after the intake install?
Hey GF Brett. I have a 2021 Ranger Tremor. I’d like a recommendation on a GFB BOV PLEASE.
How do you fine tune the bov spring pressure to release the right amount of air during deceleration?
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.
No hate to the main channel tho lol
How about one of those whistle things for the exhaust?
too much horsepower, use at own risk.
How about no
The whistle tip makes it go WOOOOOOOOO!
you have said something about heating the plugs can you give just a little explanation on that..just a little pleas thank you
I have the same exact BOV for my 01 Legacy, it doesn't reallyale any noise, even though it's been opened up, I'm not sure If the build up of air through the Intercooler from the turbos has any effect on it (since they both come in during different times)
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.
lets just teach the RicerKings in the car scene how to wear out their stuff faster so they have to buy more things!!! lol i approve
Yuuyia Takahashi how would making your turbo flutter be ricing?
I'm so glad I bought this. Lol
What about turbos that only have external waste gates
Still pretty interested in the effects on the turbo.. Pretty certain that 'the dose' wore out my 3076 VERY quickly on my stagea. But of course i assume the amount of boost you are.. surging.. is gonna make a big difference.. and the mass of the core.. tiny turbo.. probly not so bad.. big one.. probly not so good.. But also curious about stock RB25 turbo's.. because they are journal bearing..
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
I always thought dose wasn't the same as true compressor surge. With true compressor surge being the turbo boosting incorrectly (e.g. Operating on the left side of the 'surge line' on the compressor map like you explained in the last video).
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.
do you need a tune for this?
So on a stock wrx what would u set it to? Dont want "dose" sound want the pshhhhh sound but can I just do full atmosphere or will that be bad?
If you adjust the spring preload you have have full atmosphere, recirc or anywhere in between
Does this work 9n the Forge 007 BOV
No everyone will blow up their journal bearing turbos running more than 8 psi. Well played. =)
I have trouble picturing someone buying a part which sole purpose is to avoid flutter, and then set it so it flutters, even partially...
but hey, to each his own i guess
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.
How do people make the noise on a diesel Tdi vw golf?
You start by having a throttle body
How about dispelling/confirming the myth that compressor surge/stall causes damage to the turbo?
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.
I have a gfb Mach 2 and I can’t hear anything can someone help me
Flutter/dose is not compressor surge. Compressor surge happens during acceleration
Does this affect performance in any way? Would spooling be slower resulting in more lag?
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
@mcmtv2
Now where can i get that PN 6107 in Canada? i dont want to pay half the price of a respons just for a piece of blocker
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.
Are there any benefits to compressor surge other than the noise? Rally cars seem to have a lot of surge (you always hear the flutter...) so there must be a reason why they don't run BOVs... Wear and tear obviously doesn't concern them beause a race car doens't need to last 20 years, but there must be a benefit to it for them not to dump the boost?
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.
Time to gladly send a rod through my fender
The problem I see with this is that I want the sound of dose AND atmospheric. Something like a delayed BOV.
Dose Vader likes this.
So if i get a bigger turbo on my sti and and do a front mount my flutter should be louder? or could i just run more psi (upgraded internals ofc)
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.
isn't venting no air the same as fully recirculating????????????? im confused
No, it's not.
Joseph Kaufman 😱 so where does that air go
This feels like stancing your car and then liking the sound of it scraping. To each their own obviously, I can appreciate the money and effort you put into your car, but I can't help but think you're handicapping it on purpose.
I need advice, I bought a greddy-fv dump valve. I don't kno how to fit it on my insignia 2.0T cdti
Isn't a more easy way to just get rid of the BOV?
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?
I'm having trouble finding the blow off valve on my civic, can anyone help?
Look near the exhaust ports for cylinder 8
I love the flutter sound, but people keep saying it is bad for the turbo. Now I'm depressed.
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?
I have a audi a4 2.0t with a electronic controled bov, so i disconected the plug so it doesn't open when letting off the throttle.
Now it flutters! :)
sjoerd918273 I have cancer, now im dead
Whats bov do u use?
Would be good to mention this mod is not street legal in a lot of Australian States.
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.
who is this guy?
Thishan Dissanayake brett
Nice product placement but it'd be nice if you showed viewers other alternative methods that are free just like what the original MCM videos would have been.
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