[Mk2] [Turbo] Not boosting as high after fitting a de cat

[LiamTye]

Ive been on my car since 8 this morning fitting my de cat cant believe it took so long

well got it all on now and it sounds lovely

i got a twin exit fujibits (spelling) on it and a motoria de cat fitted now

i got a mbc and fcd to pick up tomorrow from the post office as noone was in when they come,to re place the bleed valve i have fitted to the car

it was boosting at 12psi and is now boosting at 9

is this normal thing to do

can i turn my boost up to 15 psi once i have the fcd fitted

its a rev 2 import

[steveo825]

check the wastegate actuator isnt fouling the downpipe. this can happen


steve

[LiamTye]

how can i check that mate will i have to take it all apart again

ive heard that some stick but it picks up alright and no boost spike anything like that

[2Crooky]

Was it the cheaper XS Power/Motoria unit for £80ish?????

If so then yes your wastegate is catching and the only way is taking it apart and grinding away the part that catches!!

[Martin F]

Was it the cheaper XS Power/Motoria unit for £80ish?????

If so then yes your wastegate is catching and the only way is taking it apart and grinding away the part that catches!!

i paid around £49 for the xs downpipe and have had no problems and that was 18 months ago....

im not saying that its not causing the problem but its not a sure thing that it is...

[2Crooky]

The earlier models have not been machined correctly resulting in the wastegate catching more often than not.

It is best to rule out anything else as this is a last resort and involves taking it off again!!

[LiamTye]

it not the cheap one its the 135 quid one of the site the one with loads of weld in it

i got my fcd and mbc through today so going to play with that today see if it runs better

[Driftlimits Performance]

if it was catching on the dp you'd be overboosting

[LiamTye]

defo not over boosting

when it stops raining going to do the fcd and mcb and that should sort it out