I have a really bad flutter coming out of my intake. I just installed installed a dejon SRI and hot side Dejon CP with HKS BOV. I understand a lot of people on here don't think highly of BOV but i don't want to hear about that please. I just want to know what is wrong with my car.

So here is what happened. I installed everything and fired it up and reved it up and heard a really bad flutter and had smoke out of the exhaust and it smelled like something burning. I thought it was the BOV fluttering because it sounds exactly like that but when i had my buddy rev it up, i heard it clearly coming out of the intake. I took it for a drive and the smoke stopped coming out of the exhaust fairly quick but still had the flutter. I stopped in a parking lot and the exhaust didn't smell anymore but had a little bit of smell coming out of the engine compartment like something was burning. Not sure what it could be at all. The only thing i can possible think is that a packing peanut possibly got left in the intake or charge pipes and got into the turbo. i understand that it would be very difficult for them to get into the turbo through the charge pipes because in has to pass through the intercooler but it definately could through the intake.

Im hoping that maybe the peanuts passed through everything but would a little bit of the peanuts on the impeller make this sound or just knock the turbo out of balance? I was sure i had all of the peanuts out but maybe not and that is my problem.

Please if anyone else has had this issue, chime in. If not, please don't post any bull ****. I just want to get my car fixed. Thanks

 

Use the search button.... There is a bunch of threads on this.....

 

^this


but do you have everything hooked up properly? probably not

 

sorry man. i guess i should've. i was just upset and wasn't thinking. i will do that. thanks

ok, i searched all the threads i could and found SOME answers but none of them for the exact problem im having. i disconnected the vaccum line to the bov and hooked the bpv back up to the way it was stock and had no flutter.

so what im asking is, does anyone know how to adjust an hks blow off valve. im not even sure what one it is. it looks just like the ssqv but its gold. it has a bolt on the back side of it and i tried turning that completely in and back out and it didn't change anything at all. any ideas?

 

Go back to stock and buy the new ssqv

what you have is an OLD one it's probably not working properly

 

it was on my buddies car and it was working perfectly fine. we took it directly off his car and put it on mine. didn't adjust anything. actually we just swapped charge pipes and he put a new one on the pipe i gave him. so we didn't even take it off the pipe. i hooked it up the exact same way and now its doing this.

 

What are you using to block the factory bpv?

 

yeah, my car was perfectly fine. i have double checked everything. its hooked up exactly how everyone else's is hooked up. im not blockin off my stock bpv. i used a T to run a vaccum line to the bpv and hooked the bov to the spot where the bpv was originally hooked up. i don't know what that little black piece is called on the manifold, sorry. but this is how he had is hooked up and looks like how most others hook it up. there is a thread somewhere on here one how to hook these things up but i can't find it now. but i know its exactly how it says because he still had his stuff he printed off when we hooked up his.

 

nobody has any other ideas?

 

That black thing on the manifold is called a solenoid. I'm looking through my pics right now. I'll see if I can find a pic of the hookup.

Edit: Sorry, don't have that one.

 

thanks man. i knew it was a solenoid just didn't know what kind. didn't want to call it something stupid and get pounced on by these guys which i would've deserved. im pretty sure i hooked it up right. i have tried several different ways of hooking it up and they all do something a little different that doesn't make it work right. im lost

 

OP got ur PM, its your vacuum lines. There probobly routed wrong and all fucked up. What i suggest, is DONT run a block off plate. I have one but i dont run it as HKS is simply a sound mod and without the block off plate you still get the chirp of the HKS and a certain amount of metered air makes it way back into the recirc so you dont run as rich and hurt anything. The line that comes from the back of the BOV should T into the vacuum hose coming off the left side of your intake manifold that runs to the stock BPV. Heres a pic of how they should be setup:




^BOV hose coming from the bottom and "T"ing into the left side



Stock BPV still working

 

thanks a lot gestapo. i will try that. mine is hooked up just a little different. i found that i got rid of a lot of the flutter by getting a smaller vaccum line that fit the bov better. it helped a lot but i still have some flutter. i will try running it the exact way that you have it. if that doesn't fix it completely, then i guess will have to consider getting getting a new bov because this one probably isn't working right if the problem persist. once again. thanks a lot man.

 

Did u clamp the stock bypass valve?

 

if the lines are routed any other way really then youll run into problems. Do it this exact way and let me know what happens. HKS is a universal BOV that runs low and high boost settings, maybe the piston needs lubricating? I doubt it put you could take it apart and play with it. First fix the vacuum lines and see what happens. I know when I had my greddy I had a tinnny bit of flutter. But as long as it doesnt flutter under high boost and only under low boost then your ok. any flutter under 5psi is acceptable. If your at 21psi and it blows off and at the very end it kinda winds down with a psh psh psh you should still be ok. PSSSSSSSSSSSH psh psh psh is pretty well acceptable

 

ok. that is pretty well what its doing now but i will go ahead and run the lines the exact way you have them. how do you lubricate the piston. this is a pretty old model and it probably needs it. i would like to go ahead and do it.

 

compression surge?
sounds awesome, bad for your car. haha

 

to lubricate the piston, honestly iv never done it on an HKS, did it on my greddy but using WD40 at first, then some clear lubricant. But thats a spring style BOV where the HKS is a piston so it was a little different. On the HKS id have to actually see it, but just get some wd40, try pushing on the piston to send it back and put some where it looks like it would work really, then give it a shot

 

k. thanks

 

gestapo...i hooked my vaccum lines up the exact way you have them. i hear very little flutter now. thanks a lot. however, it now seems like it is fluttering as soon as i let off the throttle at pretty much full boost. not near as bad as it was. just a little. is this going to be a problem?


for those that haven't read the entire thread, i pmd gestapo about my problem and he was a major help. i saw a previous thread "giving props" to gestapo. i would like to add to that. they very little time i have spent talking to him, he is a great guy and great help. thanks a lot man

 

no problem man, that flutter you hear could be just the 2 BOV's opening at different times since they have different spring rates, and the echo fromt eh Dejon. Dejon makes alot of noise, i wouldnt worry about it man your good to go.