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zaltounian
Samba Member
Joined: October 26, 2006
Posts: 45
Location: La Habra, CA
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 Posted: Fri Nov 17, 2006 11:07 pm Post subject: Decibal Level on Straight Headers |
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| I have a 1971 1600cc engine running straight offroad competition exhaust pipes. Presently, regulations at the site I want to offroad at state I need to be below 101dba. Anyone know how loud these pipe are? If they are too loud, I was looking to buy a spark arrestor muffler. Any suggestions? How would this affect my performance compared to straight headers? |
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Jamnajar
Samba Member
Joined: August 28, 2006
Posts: 542
Location: Saratoga Springs, UT
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| Posted: Sat Nov 18, 2006 12:43 am Post subject: Re: Decibal Level on Straight Headers |
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| zaltounian wrote: |
| I have a 1971 1600cc engine running straight offroad competition exhaust pipes. Presently, regulations at the site I want to offroad at state I need to be below 101dba. Anyone know how loud these pipe are? If they are too loud, I was looking to buy a spark arrestor muffler. Any suggestions? How would this affect my performance compared to straight headers? |
What type of cam and carbs are you running? If they are anywhere near stock you will get more torque with a quiet pack or arrestor system, and you will not really notice a loss on the top end.... 101db is pretty loud. If you kept it slow around others (not FULL throttle) then you should be fine. You might even find a ranger to test your system for you.... Or radio shack sells a DB meter for $20.... Read the rules for your park and find out how far back from your exhaust system you take a reading from. |
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zaltounian
Samba Member
Joined: October 26, 2006
Posts: 45
Location: La Habra, CA
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| Posted: Sat Nov 18, 2006 10:12 am Post subject: |
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| I will probably go with the spark arrestor muffler system as it kills two birds with one stone. Thanks for the input. |
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runslikeapenguin
Samba Member
Joined: August 07, 2005
Posts: 4674
Location: Federal way WA
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| Posted: Sat Nov 18, 2006 3:39 pm Post subject: |
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yeah i ran a open stinger on my bug back when i was still a street car for about 2 days and decided i wanted my brains inside of my head so i packed the grapefruit shooter with a baffle, much better
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