SandB intake sound - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 08-18-2010, 07:27 PM Thread Starter
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SandB intake sound

I just installed a s and b intake and egt,trans, and boost gauges on my 03 7.3 truck. Under hard acceleration i notice what i guess would be a hissing type noise when trans shifts or when i let up off the gas from a hard acceleration. I imagine that is due to the cold air intake? First time with a cold air on a turbo truck thanks for any input
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post #2 of 8 Old 08-19-2010, 09:53 PM
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I put a banks ram air on mine and it does the same thing.

2003 SUPERDUTY, CREW CAB, 2WD, 7.3 AUTO, STOCK
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post #3 of 8 Old 08-19-2010, 10:10 PM
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yup its normal. its air "wooshing" (lol) backward through the turbo i think?

03 F-350 Lariat 7.3 TW Chip, Diamond Eye 4", DIY Intake, CFM Plus, zoodad, unhooked waste gate, D.I. x-over, Auto Meter Ultra Lites, Dash Pod
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post #4 of 8 Old 08-20-2010, 06:43 AM
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Mine sounds like the wast gate is blowing off or something. So i dont know.

2003 SUPERDUTY, CREW CAB, 2WD, 7.3 AUTO, STOCK
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post #5 of 8 Old 08-20-2010, 07:30 AM
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Pretty much normal I guess. I started hearing mine after I installed my DIY intake w/ the Amsoil open filter. Freaked my wife out one day she was driving it. She thought, oh sh** I broke his truck. She was afraid to tell me about it until I told her it is normal with my new intake.

2002 F250 XLT CC 4x4
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post #6 of 8 Old 08-20-2010, 08:53 AM
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HAHA if you have a wicked wheel you are going to hear the turbo even more. but honestly thats just the turbo shooting air back out. normal.. and no you wont hear your wastegate.
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post #7 of 8 Old 08-23-2010, 10:08 AM
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Quote:
Originally Posted by SJB View Post
Pretty much normal I guess. I started hearing mine after I installed my DIY intake w/ the Amsoil open filter. Freaked my wife out one day she was driving it. She thought, oh sh** I broke his truck. She was afraid to tell me about it until I told her it is normal with my new intake.
That is to funny my wife did the same thing.

2003 SUPERDUTY, CREW CAB, 2WD, 7.3 AUTO, STOCK
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post #8 of 8 Old 08-23-2010, 01:46 PM
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Quote:
Originally Posted by SJB View Post
Pretty much normal I guess. I started hearing mine after I installed my DIY intake w/ the Amsoil open filter. Freaked my wife out one day she was driving it. She thought, oh sh** I broke his truck. She was afraid to tell me about it until I told her it is normal with my new intake.


i dont tell my wife there is anything new on the truck because that means I spent money
i just tell her if she asks i made some changes

Dave

2002,7.3L,6sp,cc,lb,xmonitor,1705,zoodad,AFEstg2, wicked wheel,hpx ss line,straight pipe,325/65r18 mtz,kmc 18x10,6.5"procomp lift & track bars,firestone bags,viair 480,5g tank,train horns,70g transfer tank,leer shell,12k warn & hidden bumper kit,05-07 H-D headlights,35W 5K HIDs in head/fogs
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