howellsy42

as above have just fitted the fmic and my dump valve is working but im getin what sounds like turbo chatter (but it sounds like its coming out of the dump valve) is this normal? and if it isnt whats damage is it doing? im going to be heading to zen for a remap in a month or so before going germany so is it ok to be driven before then?

dunx

iTrader: (3)

Did the FMIC kit include an air filter assembly....
Mine did, and it's so much noisier. NICE !

But drove like a nun on Sunday to get to mapping, NO BOOST at all to be safe....

Once mapped, lots of problems with the atmo dump valve. Even softest spring didn't help....
Put std. one back on to cure problems..

Dunx

Jam Performance

iTrader: (3)

ive got loads of chatter too, after fitting a fmic

howellsy42

im running a atmo baily dump valve if thats helps!! the dump valve is dumping but it sounds like its doing it in stages if that makes sence !!

mastarasta47

i have the same problem mate, let me know how you get on!

MattyB1983

iTrader: (51)

I have front mount, no dump valve whatsoever and no MAF, just a huge filter. I also get chatter when coming off the loud pedal. It is due to the air being forced through the turbo and stalling the fins. Can cause damage to early VF series turbos (ie cracking etc) but TD series turbos like I use are much stronger.
This is what I was told from other members on the forum anyway chap.

ditchmyster

iTrader: (7)

shush, or should that be psssssssst don't let on that you have or like a vta.

da forum rozzers ill be on to ya 4 ya can seh owt innit