Whistling problem HELP!

1989GT · 02-27-2001, 01:12 AM

I've been helping a friend on his 93 GT and we just ported his heads and installed a Trick Flow intake, BBK 65mm tb, BBK 65mm EGR spacer, CL 73mm MAF. And he has this whistle at low RPM's. I think I read something about the BBK thottle body have this problem. But I'm not sure. Any ideas about what it is? Or how to fix it? Thanks!

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89GT,T-5Z, D.S.S. 306 shortblock w\main support, B-303 cam, Cobra intake, GT40P heads, 1.72rr, MAC "P" headers, MAC off-road H-Pipe, MAC true-fit w\tips, 373's...and the list goes on!
Throttle Junkie Powered by Ford!
12.824 @ 107.05 MPH
PVT Blankenship leaving for BCT 14MAR01
MOS 67 Romeo

bcinyuz · 02-27-2001, 02:12 AM

I'm having the same problems with my BBK throttle body. And i've just about given up on that brand. I can't give u any advice on how to solve this problem, but if I get mine to stop making that noise I will let u know

rtz · 02-27-2001, 02:51 AM

Thanks for the info. I know not to buy a BBK throttle body now.

1989GT · 02-27-2001, 11:56 AM

Thanks! Atleast we know it's the tb now, I was pretty sure it was though. I thought someone posted a fix for it a while back...but I'm not sure.

------------------
89GT,T-5Z, D.S.S. 306 shortblock w\main support, B-303 cam, Cobra intake, GT40P heads, 1.72rr, MAC "P" headers, MAC off-road H-Pipe, MAC true-fit w\tips, 373's...and the list goes on!
Throttle Junkie Powered by Ford!
12.824 @ 107.05 MPH
PVT Blankenship leaving for BCT 14MAR01
MOS 67 Romeo

LX XLR8R · 02-27-2001, 12:14 PM

yes it is the tb..when they drilled the hole in the middle they didnt drill it at the anglle that the air would be going threw it at an idle..they drilled it straight..drillling the hole out at an angle is the propper way to fix it but drilling a sligtly bigger hole and turning down the idle screw afterwards will correct the problem also

------------------
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..

1989GT · 02-27-2001, 12:24 PM

Thanks I'll give that a try tonight.

------------------
89GT,T-5Z, D.S.S. 306 shortblock w\main support, B-303 cam, Cobra intake, GT40P heads, 1.72rr, MAC "P" headers, MAC off-road H-Pipe, MAC true-fit w\tips, 373's...and the list goes on!
Throttle Junkie Powered by Ford!
12.824 @ 107.05 MPH
PVT Blankenship leaving for BCT 14MAR01
MOS 67 Romeo

fiveohpatrol · 02-27-2001, 12:34 PM

dont fix it! you could tell people thats whine from the blower

------------------
88 Notchback 5.0, 3.73's, pulleys, BBK headers, off-road H-pipe, flowmasters, subframe connectors, 65mm TB, shift kit, March ram air kit, motorsport wires, MSD coil, upper and lower control arms, 155lph fuel pump, cheap 2800 stall, Crane Adj.FPR, best time- 13.99@99.75, not yet tested times after 1.7RR install

1989GT · 02-27-2001, 12:50 PM

Yeah we were joking about that last night. What's that whistle? Ohh that's my blower. Let me see it. Yeah I would but the hood latch is broken.

02-27-2001, 01:12 AM	#1
1989GT Registered Member Join Date: Apr 1999 Location: Cincinnati,OH Posts: 1,511	Whistling problem HELP! I've been helping a friend on his 93 GT and we just ported his heads and installed a Trick Flow intake, BBK 65mm tb, BBK 65mm EGR spacer, CL 73mm MAF. And he has this whistle at low RPM's. I think I read something about the BBK thottle body have this problem. But I'm not sure. Any ideas about what it is? Or how to fix it? Thanks! ------------------ 89GT,T-5Z, D.S.S. 306 shortblock w\main support, B-303 cam, Cobra intake, GT40P heads, 1.72rr, MAC "P" headers, MAC off-road H-Pipe, MAC true-fit w\tips, 373's...and the list goes on! Throttle Junkie Powered by Ford! 12.824 @ 107.05 MPH PVT Blankenship leaving for BCT 14MAR01 MOS 67 Romeo

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02-27-2001, 02:12 AM	#2
bcinyuz Registered Member Join Date: Aug 2000 Location: lodi,ca,usa Posts: 86	I'm having the same problems with my BBK throttle body. And i've just about given up on that brand. I can't give u any advice on how to solve this problem, but if I get mine to stop making that noise I will let u know

02-27-2001, 02:51 AM	#3
rtz Registered Member Join Date: Feb 2001 Location: Edmond, OK Posts: 180	Thanks for the info. I know not to buy a BBK throttle body now.

02-27-2001, 11:56 AM	#4
1989GT Registered Member Join Date: Apr 1999 Location: Cincinnati,OH Posts: 1,511	Thanks! Atleast we know it's the tb now, I was pretty sure it was though. I thought someone posted a fix for it a while back...but I'm not sure. ------------------ 89GT,T-5Z, D.S.S. 306 shortblock w\main support, B-303 cam, Cobra intake, GT40P heads, 1.72rr, MAC "P" headers, MAC off-road H-Pipe, MAC true-fit w\tips, 373's...and the list goes on! Throttle Junkie Powered by Ford! 12.824 @ 107.05 MPH PVT Blankenship leaving for BCT 14MAR01 MOS 67 Romeo

02-27-2001, 12:14 PM	#5
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	yes it is the tb..when they drilled the hole in the middle they didnt drill it at the anglle that the air would be going threw it at an idle..they drilled it straight..drillling the hole out at an angle is the propper way to fix it but drilling a sligtly bigger hole and turning down the idle screw afterwards will correct the problem also ------------------ 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..

02-27-2001, 12:24 PM	#6
1989GT Registered Member Join Date: Apr 1999 Location: Cincinnati,OH Posts: 1,511	Thanks I'll give that a try tonight. ------------------ 89GT,T-5Z, D.S.S. 306 shortblock w\main support, B-303 cam, Cobra intake, GT40P heads, 1.72rr, MAC "P" headers, MAC off-road H-Pipe, MAC true-fit w\tips, 373's...and the list goes on! Throttle Junkie Powered by Ford! 12.824 @ 107.05 MPH PVT Blankenship leaving for BCT 14MAR01 MOS 67 Romeo

02-27-2001, 12:34 PM	#7
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	dont fix it! you could tell people thats whine from the blower ------------------ 88 Notchback 5.0, 3.73's, pulleys, BBK headers, off-road H-pipe, flowmasters, subframe connectors, 65mm TB, shift kit, March ram air kit, motorsport wires, MSD coil, upper and lower control arms, 155lph fuel pump, cheap 2800 stall, Crane Adj.FPR, best time- 13.99@99.75, not yet tested times after 1.7RR install

02-27-2001, 12:50 PM	#8
1989GT Registered Member Join Date: Apr 1999 Location: Cincinnati,OH Posts: 1,511	Yeah we were joking about that last night. What's that whistle? Ohh that's my blower. Let me see it. Yeah I would but the hood latch is broken.