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Post by Johansson on Mar 10, 2013 8:01:11 GMT -5
Today I made a cardboard airbox, 6.7 times area increase between the air box inlet and comp inducer so it should flow sufficently. Last week I bought a sheet of 3mm aluminum so I will use the hydraulic cutter and bender at work some evening to get the basic shape of the air box. Cheers! /Anders
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wolfdragon
Senior Member
Joined: April 2011
Posts: 287
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Post by wolfdragon on Mar 10, 2013 15:43:43 GMT -5
Have you put any thought into a intake filter or just a general shit stopping screen?
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Post by Johansson on Mar 10, 2013 16:26:48 GMT -5
I am not going to fit any screens to the intake, if I try to stop everything that might harm the compressor the engine will be starved of air so I figure it is no use trying.
The fairings will see to that no gravel or crap from on the road will be thrown up by the front wheel and sucked into the engine.
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Post by turbochris on Mar 11, 2013 15:35:16 GMT -5
If I was air i would jump right in. Put grease/adhesive all over the inside of the intake, then look at what the grease picked up after a run. Use a screen until you see your intake grease/glue free of fod. Unless I'm following someone never get any crap in the traps.
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Post by Johansson on Mar 11, 2013 23:54:27 GMT -5
But can it be done? Even a 1mm sand pebble will damage the engine so a <1mm screen would have to be used. This will cause a restriction to the air flow and make the already high TOT even higher with engine damage as a result.
Fitting a much larger screen would be useless since it is the smallest particles that are most likely to be thrown up by the front wheel.
If I could fit a screen without problems I would certainly do it, but right now I see more risk of engine damage with one than without one...
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Mar 12, 2013 5:57:08 GMT -5
If you increase the intake airbox further, you SHOULD be able to add a debrie screen without restricting your engine. because the surface area is so big, the small mesh wouldn't be a problem. How much m^3 of air per second does your engine consume?
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Post by ernie wrenn on Mar 12, 2013 7:41:32 GMT -5
How about extending the front of the box to use the oil cooler as a partical screen. Double duty cooler and air intake. Should keep the oil temp down.
ernie
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Post by Johansson on Mar 12, 2013 15:29:38 GMT -5
The engine has a mass flow of almost 1.4kg/s, can´t build the air box larger than it is now if I wan´t the ram air from the front fairing intake ports to reach it. Sucking 1.4kg/s of air through the oil cooler would definitively starve the engine of air...
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Mar 12, 2013 16:31:39 GMT -5
could you not try something like this? the airbox would stick out the sides of the bike a bit but it creates a bigger area so you can put some sort of filter on there
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Post by Johansson on Mar 12, 2013 17:05:28 GMT -5
Look guys, I appreciate your concern but I won´t fit a screen unless I get hard evidence (signs of FOD on the inducer) that it is needed. End of discussion.
Edit: Even radiuses on the edges around the intake box are of minor importance since the only time I will be pushing the engine to its limits is when the bike is moving fast, by then ram air flow is all that matters. I will make some sort of overhung scoop that directs all air from the nose air ports down into the air box.
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Mar 13, 2013 5:15:19 GMT -5
Just trying to help man
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Mar 13, 2013 6:11:13 GMT -5
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Post by stoffe64 on Mar 13, 2013 7:04:39 GMT -5
haha...that was a bit drastic maybe....
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Post by Johansson on Mar 13, 2013 7:24:35 GMT -5
Are you deliberately trying to piss me off Metiz?
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Post by stoffe64 on Mar 13, 2013 7:42:26 GMT -5
ehhh,who are you referring to now Anders?, i was not meaning to piss you off Anders!
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