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[bondy]

HEY GUYS CAN ANY ONE HELP ME ,IVE GOT A BF T ,ITS MAKEING A LOUD WHISTLING SOUND ,AROUND 3500,4000 RPM ,IT ONLY DOES IT WITH THE 10 POUND TUNE IT ,AS SOON AS YOU GET TO THAT RPM IT STARTS ,I PUT THE STANDED TUNE BACK IN IT ,BUT YOU CAN HARDLY HERE IT ,HAS ANY ONE HAD THIS BEFORE .OR HEARD OF IT ,ANY IDEARS WOULD BE GREAT ,IVE CHECKED ALL HOSE TO AND FROM THE COOLER AND TURBO .

[Goobz]

If its only doing it with the 10psi tune I'd say its the turbo. Remember you are allowing it to spool up more, so it will be louder.

Perfectly normal , I wouldn't stress.

Chris

[bondy]

THANKS CHRIS ,BUT IVE HAD THE 10 PSI TUNE IN IT BE FOR AND IT NEVER USED TO MAKE THAT SOUND .SO I JUST THOUGHT SOME ELES MIGHT OF HAD THE SAME PROBLEM

[AzMahoony]

MAYBE YOU NEVER NOTICED IT BEFORE, FROM YOUR FIRST POST ITS ONLY WITH THE 10PSI BOOST, SO IF I WERE YOU I WOULDNT WORRY ABOUT IT

[Ralph Wiggum]

  Silhoutte6T said:

MAYBE YOU NEVER NOTICED IT BEFORE, FROM YOUR FIRST POST ITS ONLY WITH THE 10PSI BOOST, SO IF I WERE YOU I WOULDNT WORRY ABOUT IT

TURN OFF CAPS LOCK.!!!! check the cheap ass ford hose clamps the've probably begun to leak under boost

[AzMahoony]

  hiddeous said:

TURN OFF CAPS LOCK.!!!!

Bondy started it!

[sutty]

  bondy said:

HEY GUYS CAN ANY ONE HELP ME ,IVE GOT A BF T ,ITS MAKEING A LOUD WHISTLING SOUND ,AROUND 3500,4000 RPM ,IT ONLY DOES IT WITH THE 10 POUND TUNE IT ,AS SOON AS YOU GET TO THAT RPM IT STARTS ,I PUT THE STANDED TUNE BACK IN IT ,BUT YOU CAN HARDLY HERE IT ,HAS ANY ONE HAD THIS BEFORE .OR HEARD OF IT ,ANY IDEARS WOULD BE GREAT ,IVE CHECKED ALL HOSE TO AND FROM THE COOLER AND TURBO .

Check all the hoses and clamps again. Sounds like it would probably be a boost leak - as hiddeous has said.

[RAPHOON]

What's the power like with the 10PSi tune in? If it's good, you're probably just hearing the turbo doing what its supposed to do.

If not, then a boost leak may be the culprit.

[YPURV4]

or worst comes to worst, turbo compresser blade mine was making a real high pitch squiel under boost I thought it was clamps but it ended up being the compresser wheel, some thing had chiped the blade hence causing that whistling sound.

[urslow]

ALL GOOD ADVICE..

CAAAAAAAAAAPS IS your FRIEND>>>