my gti turbo wont hold its boost

[neils mk6]

Hi lads just had revo stage 2 done today & my standard turbo wont hold its boost when asked by ecu, anY IDEAS ?  WAS ALSO TOLD MK6 TURBO NOT AS STRONG AS THE MK5 TURBO ,MY CAR HAS 27000 MILES& 2010 60 PLATE , STILL GOT LOADS OF TORQUE THOUGH AT BOTTOM END WHICH IS GREAT BUT RUNS OUT OF BREATH AROUND 5000 RPM, CHEERS NEIL

[Poached]

The IHI Turbo is out of it's compressor efficiency in the upper RPM, it's a small turbo and the same was true of the MK5 KO3.

It is normal for the boost pressure to tail off towards the upper rpm range.

Do you have logs showing a disparity?

[neils mk6]

YES HAD HER ON THE ROLLERS TODAY , TECY GUY TOLD ME HE"D SEEN IT BEFORE ON MK6"S DUE TO HE SAID TO INFERIOR CHEAPER MK6 TURBOS ,  IS K04 THE NEXT STEP & HOW MUCH WILL THIS COST ME ?

[wigit]

you checked the DV is not split, given the IHI out performs the old K03 motor hands down especially when mapped

[Ess_Three]

Neil, any chance of turning your Caps Lock off?

[RocketRossUK]

you sure its not the HPFP that can handle the request from the ECU rather than the turbo running out of boost?

[wigit]

you sure its not the HPFP that can handle the request from the ECU rather than the turbo running out of boost?

HPFP is not an issue on the TSI motor plenty of headroom

[Snoopy]

Check your diverter valve or just renew it its only about 35 quid.

[Ess_Three]

More likely the DV than any turbo issues.

I've never heard of any tuner describe the IHI as 'inferior' either...considering they out perform the K03 on all levels.

[RocketRossUK]

you sure its not the HPFP that can handle the request from the ECU rather than the turbo running out of boost?

HPFP is not an issue on the TSI motor plenty of headroom

Thought at stage 2 it might start lacking....but i believe you, props DV

I have a spare Brand New Rev G DV in my glove box. £30 posted if needed