Whistling?

5PntOhh · Jun 15, 2009

The other day I installed a 65mm t/b on my '95 5.0
After I was finished, I obviously took it for a cruise and made sure everything was functioning properly, and it is. No rough idling or hesitation all the gauges are readings fine.
But! as I was cruising I got on it a little in second gear and around maybe...1800 to about 2200 RPM I heard a whistling, and it does that (same RPM range give or take a small amount) in just about every gear except 1st. And when it does this whistling, nothing changes, car runs great.

Is it just the added amount of air traveling and I can just hear it now?
Or is it something I should be more concerened about?
Obviously after I heard it I checked under the hood, made sure nothing had become looose and that everything was connected; which it was.

dalpoas83 · Jun 15, 2009

i just did a bbk 70 mm tb and jlt cai and have been noticing the same. I wouldnt worry about it unless you notice something wrong.

sbr420a · Jun 15, 2009

i get the same thing from my 75mm bbk and my bbk intake

OnyxCobra · Jun 15, 2009

BBK TBs are known to whistle, apparently drilling a small hole in the butterfly stops the sound.

LAFENATU · Jun 15, 2009

That's a shame. I have heard Professional Products does as well. For the cost of parts none of them should do that.

I went and spent the extra on a Ford Racing and am glad I don't have that problem. Hopefully the drilling will fix it.

OnyxCobra · Jun 15, 2009

my professional products TB doesn't whistle...

5.0kid · Jun 16, 2009

my ford racing one doesnt whistle either.

94 DropTop · Jun 16, 2009

my ford racing one doesnt either but my exhaust is really loud so who knows in the end.

94kingcbra · Jun 16, 2009

My professional products does not whistle either. Does it do it when you grab a hand full of the throttle when you're under the hood?

5PntOhh · Jun 16, 2009

Yeah it does, But when I'm concentrating on how the whistling flows (when i'm looking under the hood) from what I can hear it's just going from the CAI to the TB then just into the intake. That's why I can only guess that it's just the greater amount of air traveling then before. I've checked multiple times for anything loose or something disconnected but never found anything out of place.

Beats me haha.

Thanks for the input!