Speedfreak391 Posted September 11, 2013 Report Share Posted September 11, 2013 I have a maggy 112 kit on my SS and it whistles like hell just before getting into boost. Is this normal? I also have a K&N CIA. Quote Link to comment Share on other sites More sharing options...
T-Bag Posted September 11, 2013 Report Share Posted September 11, 2013 (edited) Same with mine, we determined when tuning it's the throttle body butterfly. It seems to only "whistle" at a certain percentage of throttle when it's at a certain position as the air passes through it. That was what my tuner and I discovered in my case. Others may have a different idea. Nothing to worry about. Edited September 11, 2013 by Bad Ass Silvy (see edit history) Quote Link to comment Share on other sites More sharing options...
lilmarv1117 Posted September 11, 2013 Report Share Posted September 11, 2013 I have the 122 Maggie, same style as the 112. Mine will do the same thing at a certain percentage before boost. Quote Link to comment Share on other sites More sharing options...
1BAD2K Posted September 11, 2013 Report Share Posted September 11, 2013 My mp112 doesn't make any whistle or whine whatsoever. I was really hoping to hear that whine, but nothing. I have a 90mm jtube and tbss throttle body with a 3.1 pulley. Quote Link to comment Share on other sites More sharing options...
RickRolled Posted September 12, 2013 Report Share Posted September 12, 2013 My whines like a newborn baby and i love it Quote Link to comment Share on other sites More sharing options...
T-Bag Posted September 12, 2013 Report Share Posted September 12, 2013 (edited) I believe the smaller pullys contribute to the whistle? Edited September 12, 2013 by Bad Ass Silvy (see edit history) Quote Link to comment Share on other sites More sharing options...
Speedfreak391 Posted September 12, 2013 Author Report Share Posted September 12, 2013 I don't think it has anything to do with the pulley size. I do think it is the throttle body. I am running a 3.2 pulley and a k&n cold air kit. It seems to whistle super frickin loud just before the boost comes in. I don't mind it normally but when I'm towing my boat it's kind of annoying. Quote Link to comment Share on other sites More sharing options...
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