I just got my Ty running again after a full motor and turbo rebuild, now I just took it for a short rid around the block and when I let off the gas or between shifts it sounds like I have a BOV on the truck when I do not, are they supposed to sound like that? I have a custom intake on it right now off the stock orange turbo elbow and no hood at the moment. I just want to make sure everything is ok before I mess something else up on it. It obviously only does it when the truck starts to really spool but I did not get on it to much due to it beinf just fired and started for the first time in months. I also have the Waller 57mm turbo upgrade on my stocker if that makes a difference? I am just asking because this is the first time I am driving it since I bought it with a bad motor and turbo. Thanks in advance guys!
BOV sound?
- Thread starter DRUNK411
- Start date
Chrisssssssss
New member
Re: BOV sound?
Are you SURE you don't have some kind of BOV? I would check closer into that, though I am relatively new to the SYTY world myself, but at least I had my truck a week before I blew it up... It definitely had a BOV. Loud as hell. Freaks out any passengers.
I could be wrong here, but i thought that all turbocharged vehicles (or at least most) have some kind of BOV of sorts. Other than that, what would you do with all of that spooled up air pressure if you let off the gas? :dunno: In my thought process, there would need to be some sort of release or ???
Just my :2cents: , which is really all it's worth.
Cheers,
Chris
Are you SURE you don't have some kind of BOV? I would check closer into that, though I am relatively new to the SYTY world myself, but at least I had my truck a week before I blew it up... It definitely had a BOV. Loud as hell. Freaks out any passengers.
I could be wrong here, but i thought that all turbocharged vehicles (or at least most) have some kind of BOV of sorts. Other than that, what would you do with all of that spooled up air pressure if you let off the gas? :dunno: In my thought process, there would need to be some sort of release or ???
Just my :2cents: , which is really all it's worth.
Cheers,
Chris
Loeryder
New member
Re: BOV sound?
SyTy do not come with a BOV in stock form.
It could very well be the backwash through the turbo compressor when you snap the throttle closed.
Is it only when you let off the pedal suddenly or does it do it when you "creep" off the pedal?
the backwash gets much louder with a cold air kit since you remove the crossover tube and also having the hood off would lend well to the acoustics traveling much easier.
If you hear it when you are under boost then you've got a boost leak somewhere between the turbo and the TB.
All pretty common stuff just got to figure out which scenario you are chasing.
SyTy do not come with a BOV in stock form.
It could very well be the backwash through the turbo compressor when you snap the throttle closed.
Is it only when you let off the pedal suddenly or does it do it when you "creep" off the pedal?
the backwash gets much louder with a cold air kit since you remove the crossover tube and also having the hood off would lend well to the acoustics traveling much easier.
If you hear it when you are under boost then you've got a boost leak somewhere between the turbo and the TB.
All pretty common stuff just got to figure out which scenario you are chasing.
The Devils Own Chariot
Active member
Re: BOV sound?
Compressor surge sounds like a BOV some times. In town it freaks people out. Its loud when you have buildings on both sides.
Compressor surge sounds like a BOV some times. In town it freaks people out. Its loud when you have buildings on both sides.
The Devils Own Chariot
Active member
Re: BOV sound?
Post a pic for us. We will be able to tell in like half a second.
Post a pic for us. We will be able to tell in like half a second.
Re: BOV sound?
Yeah it is more of a flutter than anything else. Only when it spools and then I let off the gas. It is really loud like I said because the hood is off and there is a CAI on it at the moment. I will try and get some pics for you tomorrow and see if that helps at all. Would it do that if I had the vacuum lines for the boost solenoid on backwards? Not sure if that is possible just wondering thanks again guys.
Yeah it is more of a flutter than anything else. Only when it spools and then I let off the gas. It is really loud like I said because the hood is off and there is a CAI on it at the moment. I will try and get some pics for you tomorrow and see if that helps at all. Would it do that if I had the vacuum lines for the boost solenoid on backwards? Not sure if that is possible just wondering thanks again guys.
The Devils Own Chariot
Active member
Re: BOV sound?
I had an RFL on the truck and I really didn't like it. I just like the closed system and the compressor surge. Like you said the compressor surge is loud enough. I love the sure that a monster turbo makes. I did notice that half throttle with the BOV I can hear it venting. I dont really like that as well.
I had an RFL on the truck and I really didn't like it. I just like the closed system and the compressor surge. Like you said the compressor surge is loud enough. I love the sure that a monster turbo makes. I did notice that half throttle with the BOV I can hear it venting. I dont really like that as well.
Tooky
Serious about performance
Re: BOV sound?
I don't have a BOV and my truck makes the "flutter/surge" sound just like everyone else's when I suddenly let off the gas.
Listen to this video I took, it has CD-quality sound. When I let off you can hear it go "PFFFFTTTT"
Boost Launch Video (1.2MB WMV9, 640x480 44kHz sound)
I don't have a BOV and my truck makes the "flutter/surge" sound just like everyone else's when I suddenly let off the gas.
Listen to this video I took, it has CD-quality sound. When I let off you can hear it go "PFFFFTTTT"
Boost Launch Video (1.2MB WMV9, 640x480 44kHz sound)
The Devils Own Chariot
Active member
Tooky
Serious about performance
Re: BOV sound?
So it's my Vortec/Cam/PT51 setup.
I've only had one aftermarket turbo (PT51). This video was taken just 2 weeks ago!
So it's my Vortec/Cam/PT51 setup.Re: BOV sound?
Thanks Tooky thats the noise I was talking about. Just wanted to make sure I was not hurting her already! Also I read somewhere on here and I can not find it now, how to adjust your wastegate so you know how much boost you are running? Does anyone have a link to that or know where I saw it?
Thanks Tooky thats the noise I was talking about. Just wanted to make sure I was not hurting her already! Also I read somewhere on here and I can not find it now, how to adjust your wastegate so you know how much boost you are running? Does anyone have a link to that or know where I saw it?