Turbo Workshops/ Suppliers Around Brisbane

[Damien_BAXR6T]

Hey all,

I got my xr6t a RWC the other day so I can drive it when I get off P-plates but we found out on the test drive that (first time driven for more then 5 metres in 6 months) it is not making any boost at all. we set the computer up to check the MAF and boost response etc during the drive and it wouldnt go past 111kpa and 104kpa at idle, no boost.

we had a quick look at the compressor housing and its spinning fine and all the hoses are connected so the general thoughts are on monday we will take it off to check the exhaust housing to see if that's ok and then the flapper to see if its jammed or crooked then finally the actuator itself as these seem to be the main culprits.

we only had 30mins from finding this problem to clock off time and weekend so I thought id post and see if anyone else has any idea's on what it could be and if anyone know some good turbo accessory shops around brisbane incase I do need a new actuator. if I do I wont be putting a stock item back on probably a 8psi actuator used on minum setting and different flap to stop bleeding and everything then a tune after obviously.

any info you guys give would be much appreciated, cheers

[Barra]

Is that a MAP reading in kPa? if so at idle should sit on 25-40 kPa in Vacuum? And boost should start at 100kpa and 110 kPa should equate 1.5 Psi. I'm only going by what I know from my MAP OBD2 Boost kPa Gauge. Others will know more. But definitely doesn't sound right. Check play in the throttle by hand too maybe? Interesting to see what it is. Good luck and nice buy for a P-plater. No pun intended.

[Damien_BAXR6T]

yeh it seems its boosting a tiny bit. pulled the turbo of today and found a tiny crack in the wastegate but MTQ said it wasnt leaking at all and the rod and actuator was fine so now im getting a catback system because of a collapsed cat I had, which I replaced with a factory cat section but I reckon all the insides of the cat have gone back in the system and make it restrict flow so it cant boost. and while im at it im gettin a new cooler and piping since the older ones are getting brittle... so they are on the way, really hope it fixes it

cooler is HDi SIR-X with turbo to cooler piping and cooler the crossover piping leaving a standard in-take still

exhaust is twin 2.5 xforce catback

hopefully with the turbo breathing properly it will work fine, if not then I know its the turbo itself even if it was cleared by MTQ

ill check ya updated

Edited 09/08/11 09:51 AM by Damien_BAXR6T