Turbo Noise?

[Melba Toast]

Hello,
Only had FR Tdi a few weeks and noticed (more so when the windows down) a sort of chirp sound when I change gear. What is this sound? I know diesels dont have dump valves.

 

[monkeysan]

actuator "chat" ?

 

[stoneyfordNI]

sure u dont mean a "whoo " sound

thats the vnt mechanism inside the turbo resetting to low boost positon between changes


i believe

 

[DIFT]

Stoney.... just to go off topic a little, what happened to the Mk3 cupra driver on the m1?

 

[stoneyfordNI]

he needed 20 quid of ultimate after we got off the slip road , brumm brumm for 15 miles

 

[DIFT]

Was it close? I'd imagine he'd be hot, bothered, annoyed and covered in soot.

 

[stoneyfordNI]

lol, was pretty close , at 120+ he was pulling away a fair bit , but getting there it was close all the way , sat well with an upsolute mk3 also took 100 + till he shifted also ,

did i say the M1 is a nickname for my airfield

 

[DIFT]

did i say the M1 is a nickname for my airfield

I never doubted you once!
Would of thought you'd pull away from a mk3 cupra though. Hey Ho.

 

[micky 32]

Stoneyford, what bhp are you currently running?

 

[stoneyfordNI]

i dunno if it was chipped or not TBH ,

@micky , dunno really , RR says one thing , mapper says another , dont care really , goes well for me . working on more power at min ......maybe

 

[sssstew]

but whats the ball park figures between the two stoney?

 

[stoneyfordNI]

15-20BHP and 20-30LBFT

 

[sssstew]

lol.... missing a zero off each figure? i mean if you average the two readings you have

 

[micky 32]

A remapped PD130?

 

[stoneyfordNI]

ooh sorry thought u meant to say how much i was down ,

amm

185 bhp and 300lbft average of the 2 ......i think

 

[cstevens]

Hello,
Only had FR Tdi a few weeks and noticed (more so when the windows down) a sort of chirp sound when I change gear. What is this sound? I know diesels dont have dump valves.

I have noticed (in my Leon FR TDI) that sort of sound, but to me it appears to be coming from the clutch, when I put the clutch down, mainly when I am tanking it, there is a sort of squelchy noise (doesnt happen when just poodling around town).

Its not the turbo noise, as this is a slight whoosh.

 

[halo25]

I get chirping - wastegate chatter in 3rd and 4th if I rev to just under 3,000 rpm and let off - keeps me amused

Have to say after 2,000 miles the mid-range is getting better

 

[stoneyfordNI]

I get wastegate chatter in 3rd and 4th if I rev to just under 3,000 rpm and let off

id be worried , u dont have a wastegate ( if u have a fr tdi as per siggy)

 

[Melba Toast]

Ok. Took the car out for a run. There is a sound like cstevens said, a sort of squelchy sound but if I give it a good blast and change gear quickly there is a sound like a dump valve. Is it just the turbo spinning down so fast as to give a whoosh sound or something else?