Cupra Turbo whine?

[mYGeL]

Hello All

I have an Leon Cupra -08, stage 3, 360bhp...

The Turbo or I think it's the turbo, it has started to whine but only when the turbo is on the way to spool up?...

It works as normal but starts to whine from -07bars till 01bar after that i cant hear if it's stops or continues to whine because all the other sounds take over...

I have driven almost 50000km and the sound has never been like that before.. :/

Maybe somebody hear knows why or what that sound is???

Thanks!

Michael

 

[robdf2]

i have that on my stage 1 , it sounds like coming from right hasnd side of engine bay just behind the pedals , it doesnt do it on stock mode

might be a loose or damaged connection of the intake though?

 

[Glovepup]

I have managed to get it to do it in stock mode. Always wonder is it a good or bad whine? I first noticed it when I was running stage 1, currently running stock.

 

[Al]

I dont get a whine, but I do get a metallic "tinkling" noise which is intermittent, but only upon spool and boost. Never been able to pin point what it is either.

 

[Glovepup]

hmmm, i would not call it a "tinkling" noise. Sometimes I get this whine noise, as you push it hard it builds up. Hard to explain.

 

[Blade]

Nice highish pitched not too loud whistle from mine on spool up

 

[RobsCupra]

I get the high pitched whistle but I thought this was just a by product of increasing the boost pressure with a remap? I wouldn't call it a whine though.

 

[Cupraken]

I get the same as DJHorace, tinkling between 3500/4000 rpm as turbo spools up and the kick begins. I visit a lot of garages in my job and neither of the 2 VAG places can put their finger on it........................

 

[Nath.]

I dont get a whine, but I do get a metallic "tinkling" noise which is intermittent, but only upon spool and boost. Never been able to pin point what it is either.

This is a common problem on the vauxhall forums. it is a worn alternator/AC drive belt.

Rub some candle wax onto the ribbed side of the belt, this may sort the problem for a short time. If it does then fit a new belt.

 

[Cupraken]

I have wondered if it was the alternator belt/idler/tensioner slapping at certain rpm frequencies, maybe if it's not too hard i'll drop the belt off for a very short test!

 

[Nath.]

I have wondered if it was the alternator belt/idler/tensioner slapping at certain rpm frequencies, maybe if it's not too hard i'll drop the belt off for a very short test!

As said above, no need, just rub candle wax on the ribbed side and take it for a blast and see.

 

[Cupraken]

Cheers nath, I'll try tomorrow!

 

[Glovepup]

Ok, yeah a whistle is a better description. Is that normal?

 

[DaveysFR]

Glovepup,

I think a whisle is normal as all turbos whistle to a certain extent, its just a by product of the speed of the compressor wheel turning in the turbo.

My Cupra whistles also when booting it.

 

[james walker]

i have a whine from the drivers side, whines all the time when revving.... turbo also whistles when on boost, think the whistles normal from increase in boost....

whining isnt though. if i stand still and rev it whines.

havent been able to pinpoint this yet, but im guessing tensioner pulley or bearing gone.

 

[Donnyboy]

i have a whine from the drivers side, whines all the time when revving.... turbo also whistles when on boost, think the whistles normal from increase in boost....

whining isnt though. if i stand still and rev it whines.

havent been able to pinpoint this yet, but im guessing tensioner pulley or bearing gone.

Mine has similar whine noise from drivers side.. I notice it most when on a roundabout, 2nd gear and mid revs. Its almost like a diff/supercharger whine. Done it from new.

 

[james walker]

mine developed a month ago and is getting worse now.

 

[CupraTOC]

I dont get a whine, but I do get a metallic "tinkling" noise which is intermittent, but only upon spool and boost. Never been able to pin point what it is either.

To revive an old thread, did you find the cause of this as I have this also however not with stock map only with stage 2 ?