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July 8th, 2010, 04:19 AM   #51
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Re: Improving air flow into air box 09 570 Berg

Originally Posted by aquajett
i ended up talking to my dealer about drilling holes along the the top of the air box shrouds as he has done this mod to all his demos with no ill effects he said the mod has come from one of the high up husaberg techs which they do this mod to there race bikes which gains them about 2.5hp he sent photos were to drill holes so i went ahead and drilled holes as per photo i all so asked about fuel and he said with the competition map have never had any problems so i just let iddle for five minutes from a cold start dont really know if this works but made me feel better anyway i have never ridden a stock one before as i put a carbon ended titanium akrapovic can on straight away as soon as i put that on and started it you could hear it breath alot better and less airbox noise and with the airbox holes most off that sucking noise has gone i have done about 4 hours so far with the mod and it has made the throttle response very snappy and very noticiable and still runs perfect but the air filter does get more dust due to being able to get more air on demand which is a small price to pay for a bit off free horsepower just have to make sure youre allways out in front
cheers aquajett
How about posting some photo's of the drilled flanges for all the members to see?
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July 8th, 2010, 05:30 AM   #52
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Re: Improving air flow into air box 09 570 Berg

I will take some photos over the weekend and upload them so people can see the drilled holes
cheers aquajett
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July 8th, 2010, 07:13 AM   #53
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Re: Improving air flow into air box 09 570 Berg

Originally Posted by ozberg570
After reading all posts on this topic, I am going to fit a map switch (original / aftermarket) and drill / slot tank top flanges to allow for better air flow, as the seat mod may not suit the wet muddy riding I like
Actually, I think bringing the intake in from the top is probably better for dust/mud/etc. - especially if there is foam in the seat. I have been thinking about building up a seal around the edge of the airbox/seat interface if the hole in the seat approach works out. That way less dust/etc. would make its way into the airbox.

One thing at a time though. First run it with the mod, then mod some more. I am thinking about ordering the DNA filter and testing with it too.
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July 11th, 2010, 09:09 PM   #54
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Re: Improving air flow into air box 09 570 Berg

Well, I took it out for a ride with the hole cut in the seat. I took it up and down several roads where I could test acceleration through the gears. Since I already knew the bike could pop third gear wheelies I did not try full throttle until I was well into third gear. I noticed in fourth gear that it almost seemed like it could bring the wheel up.

Quite a bit louder on heavy acceleration - almost deafening.

Seat of the pants dyno said it seemed to accelerate faster with more 'hit' (a technical term) from mid-range on up. Noticeably more power - it seemed anyway. When you make a change that makes the bike louder you have to be careful about not associating that increased noise with power, but it did seem to have more power - it seemed to accelerate the bike faster.

I came home and put the unmodified seat on to test it back to back - and it did seem that without the hole in the seat the power was a bit lacking from before.

Of course you don't know unless you measure, so a dyno run is in order.
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July 11th, 2010, 10:48 PM   #55
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Re: Improving air flow into air box 09 570 Berg

What happens if you accidenaly slide too far forward and sit over the hole, is their any chance it could suck guts out?
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July 12th, 2010, 09:41 AM   #56
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Re: Improving air flow into air box 09 570 Berg

Originally Posted by tazer
What happens if you accidenaly slide too far forward and sit over the hole, is their any chance it could suck guts out?
That depends on how low your 'guts' hang.

Seriously, that part of the seat is not what you usually sit on (at least I don't) - it is more padding to protect your sensitive bits. And no, it isn't going to suck anything.

My plan is to have a custom seat built on this spare pan. The hole will have air filter foam in it so it will breathe. On the underside there will be porous (to air) fabric covering the hole and it will be velcroed to the pan so I can get to the foam. On the top the fabric for that area will be porous but not detachable.
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July 13th, 2010, 05:22 PM   #57
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Re: Improving air flow into air box 09 570 Berg

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August 17th, 2010, 12:09 AM   #58
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Re: Improving air flow into air box 09 570 Berg

Gday All,
Carried out minor mod by drilling 3 x 6mm holesdown each side of the tank flange
(above and not into tank! )
Slightly more induction noise, sounds like it is breathing better..
Did 5min burn from cold after mod.
May have to run a filter 2nd skin when riding in extremely dusty conditions.
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September 6th, 2010, 04:24 AM   #59
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Re: Improving air flow into air box 09 570 Berg

Hi everyone i have just worked out how to post pictures to my post here are some pictures of my holes i drilled in my shrouds to let some more air in to help it breath sorry it has taken so long



cheers aquajett
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September 6th, 2010, 04:37 AM   #60
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Re: Improving air flow into air box 09 570 Berg

Hey All,
Great Pic Aquajett, Only put 3 x 6mm holes ( close together) down each side of tank flange but only up high in the tank flange, this seems to make a tangible difference to performance, on the down side this mod introduces addtional dust into air box, recommend filter skin on dusty rides, mandatory filter servicing / changes in between rides...

Enjoy your BERG'S
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