Help

[newboost]

Hey i need some help, I have 2 problems that have got me stuffed (car is a R33 S2 auto,mods are a fmic,turbo smart boost t, splitfire coil packs & a hypergear hyflowed turbo)

the first problem is a really loud whistling sound when it is on boost ( i have replaced all the studs,nuts,and all gaskets, i am using the braided oil line thai came with the turbo)

the second problem is that if the car is in gear it feels like it has a slight miss. it does not do it if it is in nuetral. I have checked all the sensors and connections that are i am able to get to. This problem has onlt started since yesterday afternoon.

if anyone has any idea on what i can do to fix these it would be great

[hypergear]

In General if there is a high pitch sound normally means air is traveling out of a small whole and causing the materials around it to vibrate.

remove intake pipe and have a look to see if there are any pointy bits on it. Inspect the comp wheel and have a feel of the shaft, and check all the silicon hoses to see if any of them got a leak.

[mosquitocoils]

I had a whistling noise while boosting, sounded like a mosquito... and would increase slightly in pitch as my RPM would increase.

Turned out my BOV gasket was put on crappily, so a TINY amount of air would be forced out the small gap when boosting... just unbolted, cleaned the gasket of crap, flipped it up the other way and bolted the BOV back on.

Hasn't whistled since.

[newboost]

found the whistle, it was a pin hole in a silicon hose joiner. but it still has a bit of a miss while in gear. (auto gearbox).

[DR1FT4]

then the answer is simple, to fix that problem you need to do a manual conversion