Air Box Modifications

[DarkSideR]

As stated countless times here DON'T MODIFY THE AIR BOX!

The previous owner of my Valkyrie drilled (6) 1/4" holes in the sides of the top of the air box. For two years now I believed that the Valkyries just didn't pull that hard over 4k rpm. Yesterday I plugged those holes and after some research found the previous user also adjust the fuel pilot screws (probably to compensate). I adjusted those back factory (two turns out).

My test run after I made the changes was Eye Widening. The Valk now pulls very hard all the way through the revs. Even bent my back rest in the process!

FYI - I have the Interstate Carb Springs on order and a 4 degree trigger wheel. I am super excited to get those mods made and start riding again with all this new found power. It's like the bike has a new lease on life.

[Hoser]

I would leave the trigger wheel alone, just gonna force you to use premium gas to run right, doubt if it raised performance. JMHO. I gained HP with truck stacks with grumpy's tips over cut piggies and 1/4 inch holes drilled through rear baffles.  Not to loud, not too quiet, Mellow, 6 hp gained, according to dyno run.  Hoser    

[DarkSideR]

Hoser,

I have Super Trapp Exhaust and Headers. Chet from Rattlebars posted some dyno runs when he had the Super Trapp's installed (103hp). He stated better performance with the advanced timing.

I will try it, and pull if I no likey.

[old2soon]

Air box on mine is pure STOCK-NO/NONE/NADA extra holes. Similar to Hoser-piggies cut last baffle drilled STOCK I/S tips. Mellow sound and it shitz and gitz when I twist her tail.  STOCK trigger wheel. Let us know how your mods turn out please. RIDE SAFE.

[Hoser]

Hoser,

I have Super Trapp Exhaust and Headers. Chet from Rattlebars posted some dyno runs when he had the Super Trapp's installed (103hp). He stated better performance with the advanced timing.

I will try it, and pull if I no likey.

If you get 103 hp, it will be worth the extra cost of premium.do a dyno run and Let us know.  Hoser