Turbo

[Piperman]

Hi all is there any other reason which causes the engine to cut when boost builds up ,i have checked waste gate which is free Derek

[Rice crispy]

My two penneth worth

1) Is there a leak from the inner wing to inlet manifold as this could cause overboost
2) Have you a larger exhaust? if the wastegate isn't ported can cause this and colder weather could bring it out so I understand.
3) Is a boost valve fitted ? has it been adjusted by accident allowing overboost
4) Are you sure the wastegate fully opens?

David

[Fredjohn]

What are the engine revs when the motor cuts?

Hi boost generally = hi revs, so you may be hitting the rev limiter.

[Piperman]

Hi Dave & God I've made sure waste gate has total movement ,rev wise with boost kicking in approx 4to5000 its like hitting a wall will check out other suggestions thanks Derek

[Rice crispy]

Does the engine check light flash forward few seconds immediately after it happens? and have you got any fault codes?

[Enright]

Boost creep due to a less restrictive aftermarket exhaust and an un-ported wastegate.
It's all here:

http://wikilec.9600.org/index.php/Boost_Creep

http://wikilec.9600.org/index.php/Porting_the_wastegate

[Piperman]

Thanks everyone for replies i now have full rev range guess it was a blip i rechecked the waste gate ,took off accutator perhaps it had a stiky spot , i now have hypadrive as aposed to impulse power !