Ok I got to ask
This is going to sound like a dumb question I have 671 blower 12% underdriven 38 tooth on the top. I have asked a lot of pople why some blowers have that whining sound and mine dose not, you could here it but some cars you could here from two blocks away. I have a 350 sbc roller motor I even put noisy gear drive in and still can't get that nasty sound. What do you think.
Thank you CPT.RON 8) 8) 8) |
My guess would be the drive gears in the front of the blower. Maybe they are stock GM gears or something else, but I believe that's where that sound comes from. My .02. 8) JB
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I alway's thaght the whining noise came from the belt. :?:
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Originally Posted by jmech
I alway's thaght the whining noise came from the belt. :?:
please don't take my word completely on this subject am just passing information i was told by a blower shop |
blower whine
Originally Posted by hotrodharley
Originally Posted by jmech
I alway's thaght the whining noise came from the belt. :?:
That is where the whine sound comes from. Most of the street cars with a blower, have a 1/2 pitch belt. The teeth on the belt are flat. When the teeth mesh with the pulley, the air is smashed and there is your whine. An 8mm pulley and belt are of a rounded shape, and are not nearly as loud. http://static.racingjunk.com/63/ui/5...4773280074.jpg |
That is 100% correct. I have a 57' Chevy with a 6/71(1/2" pitch pulleys) on my 427BBC and the tighter I tighten the belt the louder the whine! Thats music to my ears :D
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Re: blower whine
Originally Posted by 1travis
Originally Posted by hotrodharley
Originally Posted by jmech
I alway's thaght the whining noise came from the belt. :?:
That is where the whine sound comes from. Most of the street cars with a blower, have a 1/2 pitch belt. The teeth on the belt are flat. When the teeth mesh with the pulley, the air is smashed and there is your whine. An 8mm pulley and belt are of a rounded shape, and are not nearly as loud. http://static.racingjunk.com/63/ui/5...4773280074.jpg Zip. http://video.google.com/videoplay?do...24568453485455 |
Sounds great Zip. But whats up with the sbc in a Dodge :shock:
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Re: blower whine
Originally Posted by zipper06
Originally Posted by 1travis
Originally Posted by hotrodharley
Originally Posted by jmech
I alway's thaght the whining noise came from the belt. :?:
That is where the whine sound comes from. Most of the street cars with a blower, have a 1/2 pitch belt. The teeth on the belt are flat. When the teeth mesh with the pulley, the air is smashed and there is your whine. An 8mm pulley and belt are of a rounded shape, and are not nearly as loud. http://static.racingjunk.com/63/ui/5...4773280074.jpg Zip. http://video.google.com/videoplay?do...24568453485455 |
I played the video of the bad ass motor you have Zip. Got me in trouble!! I had the volume up all the way up on the computer(not on purpose), woke the whole damn house up!! So glad I am the King in my castle! :roll: :roll:
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