Leon Cupra flutter on full boost

garetha1980

Active Member
Oct 7, 2006
15
0
Thatcham
small problem that's been on and off for a couple of weeks, when on full boost in 2nd or 3rd the boost seems to flutter sometimes its not full on turbo chatter that's different it sounds like theres a small leak but as I said not all the time, could this be my diverter valve leaking? car has Revo stage 1 and CAI so the sound is pretty clear
 

richicupra

Active Member
Jan 29, 2012
1,826
9
The flutter is normal on mapped cars on full boost.
I thought it was most noticeable at full throttle in 3rd and 4th gear from around 3000 rpm+
 

garetha1980

Active Member
Oct 7, 2006
15
0
Thatcham
ow really why is that? it seems to go better when it doesn't do it which is why I was wondering if its a leak from the diverter valve or somewhere else
 

lsg60

Active Member
Mar 31, 2014
320
0
As said its normal. Feeding in the power instead of having a led foot should help :)
 

lsg60

Active Member
Mar 31, 2014
320
0
Basically your turbo is going here have some booooooost and your engine is like Nah bro don't need that much so your dv opens getting rid of what's not needed. Don't worry about it