Hi all
Right firstly my mate has a 200sx and has the wastegate chatter everytime he changes gear im sure you all know what this is..
Now i have a completley standard RX7 Type R bar the BOV and want the same it sounds so great make me go weak at the knees lol what i want to know is how can i get this i mean is it a good thing does it wreck the engine or turbos im not sure and if i need anything how much is it likely to cost me I allready have a HKS SQV BOV but it just doesnt chatter i dont know what i need my mate says i need to increase boost and get an external wastegate or something but i aint got a clue to be honest HELP!!!
Thanks Guys and Gals
You\'ll need an external wastegate for that, which will require a single turbo kit, and no BOV installed, but man oh man does it sound good (i have this setup and LOVE the noises)
Hth
Quote from: Red and SingleYou\'ll need an external wastegate for that, which will require a single turbo kit, and no BOV installed, but man oh man does it sound good (i have this setup and LOVE the noises)
Hth
How much is this likely to cost i know its quite expensive and my mate still has a BOV i know its a totally different car but surely it would work roughly the same way wouldn\'t it????
NOISE IS GREAT AINT IT!!!
3K odd for the kit with accessories, just wait untill you standard setup goes pop and do it then :)
You get more chatter ( and louder) without the BOV than with one
Ok thanks a lot buddy any reccomendations for the kit
There are several sounds that make me go all goose bumpy and this is one of them ....... heaven ...... the others are, " don\'t worry I\'ll pay " " I like older men " and the squelchy sounds at the beginning of Betty Blue. :mmmm
J
REWorks sell plenty, you need to do some research and think about what you ultimately want from the car.
You can have 350rwhp and a super responsive smaller turbo upto 500rwhp and a monster turbo that wont spool under 5000rpm.
I have a T04S (old design) and I love it, spools up at 3000rpm and is very responsive giving me 330rwhp at 0.85bar. I need to upgrade my fuelling to run more boost but she\'s plenty quick enough for me.
bear in mind to go single you will need the following as well as the kit itself...
Intercooler (front mount or V mount ideally)
Bigger radiator (reccommended but optional I guess)
More fuelling, i.e. injectors, bigger pump, fpr, etc..
ECU, suggest Apexi PFC for cheapness and global tunability ( everyone know how)
i think this guy is talking about compressor surge/ turbo chatter and not the zippy noise you get from a wastegate as he says when changing gear. My wastegate starts making that noise at around 0.6bar until i change gear, when i change gear i get the "rally" sound from the turbo. This is what you mean and surely to do this you just need to tighten the BOV up or take if off completly. I dont know if this would be ok for the standard turbos but i know its acceptable for low boost on skylines and supras.
Dunno about the above but I know what he is talking about it ....... alot of Supras have it ........ Gary M knows all about this ..... fond memories of the yellow FD trashing me on the motorway ...... you just always had to change gear as you shot past me didn\'t you :cool
J
mine has chatter and i\'m running a standard twin setup all be it with quite a few mods. it does sound good! happens off boost as well as on
If your talking about the compressor surge noise than simply disconnect the bov and providing you have an aftermarket air filter the noise should be pretty loud. i know the noise you\'re talking about, my mate has a S14 200sx and makes the same noise, perhaps a bit louder.
From what i\'ve read, as long as a car is running standard boost levels it shouldn\'t damage the turbos, but don\'t take my word for that.
There is no such thing as wastegate chatter, all this is is the air coming back from the closed throttle body and hitting the turbo blades. just remove the dump valves with a nice open air filter you will hear it.
It is a rapid ch ch ch ch ch ch ch sound.
Not any kind of escaping air sound or induction whooosh.
Sadly my FD does not do it .......
J
Im running a single without a bov and get a the chattering noise like a pack of rattle snakes? Thought it was the wastegate, not sure how it does it. But I like it ALOT:p :rollin
wastegate chatter, Never heard it. I must be deaf though cos Mine is plumbed externally. What exactly am i listening for? It is a load off balls doesn\'t exist, can\'t exist wastegate is open or shut. You can get chatter as my small friend says from the intake side when throt closed and air suges back
http://en.wikipedia.org/wiki/Wastegate
See last parargraph.
Its actually compressor surge isn\'t it. Not wastegate chatter if your being technically correct.
how come i have it but still have a bov that you can hear as well? maybe i\'m lucky-i get both noises!
If you read the end of the Wiki article you will see how you can have a BOV and your cake !
Unless your running a big turbo with strong internals, the chatter noise is actually a bad thing as it\'s going to result in eventual bearing wear and shaft play in the turbo - you are actually creating a stalling force on the compressor turbine :spank
On rally cars they are not allowed the BOV, but will rebuild or replace the turbo\'s once they start going.
It should be possible to feed a pulsing signal to the BOV and make that produce a ch ch ch ch noise, by using a boost solenoid to interupt the vacuum to the BOV control valve, and pulsing it with rapid on/off pulses (555 timer and power tranny), but it will make the BOV less efficient
You will kill your standard turbos if you disconnect your BOV\'s. The shafts are tiny, and won\'t stand up to compressor surge.
Rich, the reason you can hear it sometimes is because the BOVs are designed to stay shut upto a certain pressure.
John
So not good .......... I love the sound but it does always sound rather painful ......... a bit like a " skidding " sound.
J
i read some were blitz or hks do a adjustable bov that you can allter sound from a twwwws to a chatter like a rally car?
Quote from: LRPi read some were blitz or hks do a adjustable bov that you can allter sound from a twwwws to a chatter like a rally car?
Can\'t really get a feel for what twwwws sounds like.
J
Quote from: James BCan\'t really get a feel for what twwwws sounds like.
J
PTTTTTTTTTUUUUSSSSSSSHHHH! HOW ABOUT THAT?
It sounds a bit like letting the gas out of a pop bottle (particularly one that\'s been shaken :yes ) - but with a bit of a tone with it as well.
Thanks a lot for your help guys i really appreciate it hopefully gunna save enough for a rebuild and get a single turbo soon should i get the rebuild done before she proper goes bang its only got 43k on it now but i suppose there is no dead set time as when it can go??
I\'m happy to put up with the sound for now as it\'s a bloody lovely noise :)
Bugger, might need to by a Bov then:Hammer :mad:
Quote from: G@NDYBugger, might need to by a Bov then:Hammer :mad:
Nah dont bother mate....It\'ll be allright, just get it rebuilt when it eventually dies.
It\'ll be much more responsive without a BOV.
The idea of a BOV is that it increases response, and cuts down on the amount of compressor surge. We run 2 BOV\'s on our car now and I have to say the old compressor surge noise seems to have completely gone.
Took a BB turbo off a mates car running .9bar for about 10,000 miles and that has no shaft play in it what so ever - gets flutter from the air rushing back through the blades every time! :mmmm
I always think of the noise as - well you remember monkey magic? :Laugh
It just shows how many queens and tarts own FD\'s that your more interested in that noise rather than the preservation of your turbo(s) :D
Quote from: A7NTYIt just shows how many queens and tarts own FD\'s that your more interested in that noise rather than the preservation of your turbo(s) :D
and performance too... compressor surge/stall is never going to be good for performance...
Quote from: A7NTYIt just shows how many queens and tarts own FD\'s that your more interested in that noise rather than the preservation of your turbo(s) :D
Well put...........
Waste gate chatter... lol