Hi Everyone,
Im new to the forum and i have a question to ask about my FC.

I recently got my FC imported from Japan to australia. And shes awesome hehe but i have a problem.
when i drive her from about 3,500 RPM i get a high pitched noise, which i figured its a boost leak. i have checked the vacuum hoses i could see, some had slight cracks and one was split.i have replaced them. also when my car hits boost my stock gauge doesnt work. its sits on the -20 line. So i disconneted the boost gauge thinking that the leak might be behind the dash. but no luck.
I was wondering where i could check to solve the problem? and if anyother FC owners have come across something similar.

Cheers
DVS_ONE

 

CHECK ALL YOUR INTERCOOLER HOSES!!! Especially the big fat intercooler hoses. I had taken my intercooler off to do some routine maintenance and forgotten to tighten the intercooler pipe on the right side of the intercooler. My boost was coming on way to early and i couldnt get nearly as much boost as i am supposed to. I also had that high pitched whistle. It sounded like a semi truck's turbo...lol! So i got under there and started looking for what was screwed up, and sure enough i had left one of the IC hoses off. Check the hose that goes from IC to your throttle body, IC to turbo and those little ones on the backside of your intercooler. hope that helps man.

 

Cheers buddy thanx for ur help, what ill do is on the weekend take off my IC and check for leaking pipes around there. hehe also what i found out about my car is that when i got it it had like a clicking noise when i turned sharply. and what ive been told is it has an LSD hehe so im pretty happy. You gotta love Jap imports :P and gotta love australia hehe

 

Depending on your exhaust that may also be somewhat normal. My FC's turbo has been pretty loud since I got it. Then again.. maybe I've had a leak since I got it, but I doubt that, boosting fine.

 

nah i dont think my exhaust is causing the problem, becos my car is pretty quiet until the hight pitched noise comes along... Are FC prone to having boost leaks? mines a Series 5

Cheers

 

FC's are really not prone to boost leaks just keep all your IC connections tight and that your wastegate is functioning properly

 

how can i check my waste gate?
EDIT: cos isnt it internal?

 

well it says on page 4b-56 of the FSM that you can disconnect the hose from the wastegate and connect a pressure tester to the wastegate and apply 68.7 kPa and check that the rod moves. If you dont have a pressure tester i dont how else to test it.

 

oh ok damns....
thanx for your help anyways

 

when i didnt tighten the fat IC hoses I got a crazy BOV sound when I let off the gas!

 

awesome man that sounds cool.