BBK Whistle
 

I have talked to BBK and they were not helpful at all. I know anyone who has one of these are experiencing the same thing from what I have read. Some people like it, I do not. Anyone have a solution?

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86 GT - BBK Equal shorties, BBK H-pipe, Flowmasters, 70mm Tb, BBK cold air intake. Automatic. 96k miles.

Hey guy...I've owned the BBK 70 and a 75mm Throttle Bodies and now run a FRPP 65mm. The 70mm from BBK whistled on mine also at part throttle until the day I sold it. Good news was the car ran great! But it was annoying and I never got a firm answer on WHY it did that. I recall several comments by folks I respect indicating it seemed to be inherent in the BBK 70mm...not all, but quite a few. I also ahd heard that drilling a small hole in the TB blade "may" cure it? Good luck towards a resolution because it is annoying isn't it?

I know it is common. My friend has the same one and that does it too. Sucks.

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86 GT - BBK Equal shorties, BBK H-pipe, Flowmasters, 70mm Tb, BBK cold air intake. Automatic. 96k miles.

I have heard that drilling a small hole at an angle in the TB blade will eliminate the whistling sound. Not sure though as I have an Accufab TB that does'nt whistle.

Good luck,
E

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1991 5.0 LX Coupe - 38,000 miles

13.17 @ 106.14 mph w/ 2.138 60'

Mine only whistles on ocassion..or major holidays... http://www.mustangworks.com/msgboard/smile.gif
man, I really do need sleep..

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347 Stroker Motor: Balanced, Cobra Transmission, Extrude Ported and Polished Upper and ported Lower, GT40 Milled Ported and Polished Heads, B303 Cam, BBK 1 5/8 Headers, 30lb Bosch Injectors, Holley AFPR, March Underdrive Pulleys, Perma-Cool Fan, 3-Core Radiator, Accel Performance Coil, Accel 300+ Racing Wires, Ram Air, K&N Filter, 73mm Vortech MAF, 70mm TB, FlowMaster Exhaust w/BBK Offroad H-Pipe, Hurst Shifter, 3:55 Gears, Ram Clutch, Cross Drilled Rotors, AC and Smog del, rear seat del.

Mine only whistles at hot chics http://www.mustangworks.com/msgboard/biggrin.gif . Actually, it whistles on initial throttle, but not full throttle. I don't really mind it though.

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'90 LX 5.0;12K original miles (no sh*&);3.55 gears; March pulleys;Edelbrock Performer Heads;BBK 1 5/8" equal length shorties;MSD 6AL ignition w/ blaster 2 coil;FMS E303 cam;Pro-M 75mm MAF;BBK 70mm TB; Eibach drag-launch spring kit;Southside welded subs;9" K&N cone filter charger;Hurst shifter;Cervini's 3" turbo hood;A/C delete; gutted cats;2 chamber Flomasters;Corbeau racing seats;FMS 30# injectors;JMS chip; Holley 190lb fp;TFS track heat Intake (12.299 @ 113 - 1.78 60')

it is the idle air motor ports.....

the back port is a huge chamber that then has a hole that goes into the actual throttle area....if you fill up that chamber so it is just a hole it will stop whistling....
I did this on mine after trying all the othe sugestions of drilling the plate , chamfering the holes etc.....this worked great.....if illed it with a thick pice of rubber with a hole drilled in it.

My GT has a BBK 70MM throttle body and it wistles as well...but i can't say why because i don't know http://www.mustangworks.com/msgboard/biggrin.gif

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previous name: 84stangLX
'84 Mustang 5.0 LX
my LX
'89 Mustang GT
my GT

I have a 70mm BBK TB and it has never whistled at all.

I'm not sure what brand my 65mm TB is because it was on the car when I bought it and it doesn't have any insignia on it except for a raised "65mm" on it. However, it humms the theme to the Jeffersons at part throttle. It's actually quite soothing.

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Todd
1995GT Cobra look-alike
pulleys; Flowmaster cat-back; 65mm TB; Cobra R's, front, and wing; FMS aluminum driveshaft

LOL!!!!
I'm not sure that mine humms the theme to the jeffersons http://www.mustangworks.com/msgboard/biggrin.gif, but it does whistle to remind me that it'll allways be there for me http://www.mustangworks.com/msgboard/redface.gif ... i feel so loved.

mine whistles also..gets even more attenstion like that..i belive its that bbk drilled the hole at the wrong angle..when im ready to get rid of my wistle i was just ganna fill it in

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..
AIM=onesillynotch
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