Boost Cut

[lambda09a]

Hi,

I have a 2004 XR6T Falcon and it goes great except one issue I have noticed. When I am boosting around town (ie: up to 80kph in first and second gear) the car seems to boost smoothly and really throws me back into the seat. However when I'm on the open road and boost in third gear to get up to 100 - 140 I will often get a sudden power cut-out. The way to describe it would be similar to the Traction Control kicking in and limiting the engine. However I have been trying this with traction control disabled and it still does it. I am now thinking it may be something to do with a lack of fuel during these high demand longer boosts. Any suggestions on where to look or personal experience?

Cheers

[sexual harrassment panda]

coils and spark plugs

cheers

[Paulie2256]

I hope it isn't fuel surge with your username.

[F6Fury]

Try gapping your plugs to .8mm and see how that goes

[TheOne]

When my did this it was valve springs, the higher the gear the more load on the motor. plus its a BA its due for new ones. Try plugs and coils, but budget for valve spring.

[lambda09a]

Thanks for all the replies. I'm hoping it's not the valve springs though as that sounds expensive.

[supercharged88]

What boost do you see in the higher gears.

More load from higher gear will create more boost, possibly hitting boost cut.

[Maggotmouse]

I have a 4in dump and 3.5in the rest of the way through, as soon as I boost 3rd and boost hard, bang there goes boost cut, so too stop this I called kev and process west and ordered stage 2.3 kit and pw surge tank and am about to take it in for a tune. 6 grand later with myself doing all the fitting isnt too bad of a cost I thought

[lambda09a]

I'm not sure what boost I'm getting as I dont have a boost gauge, but it seems to feel the same as when boosting in second. I dont think I could justify spending 6k to get the issue sorted at this stage Cheers