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Are there any benifits to adding an extra air horn to the carb box?
additional air horn?
- Thread starter burty
- Start date
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SLP figures there is no need until porting (so they said to me).
I did that so I added the extra horn but went with the longer stock one. My butt dyno lol, told me to never stop half way (just pipe and head) again.
I did that so I added the extra horn but went with the longer stock one. My butt dyno lol, told me to never stop half way (just pipe and head) again.
The air horn is a better option. Holes drilled in the shelf disrupt air flow velocity and add turbulence. Yamaha did a lot of testing and work on this subject. Air horn length also changes bottom end response. If I remember correctly, long horns added to bottom end and short horns added to top end.
I played with air horns last winter, and the photo shows options and what I found to work the best.
I played with air horns last winter, and the photo shows options and what I found to work the best.
TRS,
Would you happen to have the parts numbers?
Would you happen to have the parts numbers?
Polaris part numbers.
5411047
It's the one installed in the shelf. I trimmed this one down to the first seam. I'm planning on a little more testing.
5411046
The larger topped air horn
I also have numerous other air horns.
When installing an added air horn, install an SLP High Flow intake. This combo makes the "long rod" smile.
TRS- let us know how things work out. Us "Long rodders" are few and far between it seems. I already have the slp intake and powder valves but am interested in this mod if it helps.
I myself just drilled holes in the plate and my sled seems to run pretty darn well.
Its a lot easier to mess up an air box / intake system then it is to make it better. You can always make them sound meaner but many times you are loosing power. (anyone else flip the air cleaner lid upside down on your car/truck when you were a kid?) Eric
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