After Guy left this afternoon I threw this intake together and went for a ride.  I like it.  The pipe is 2 1/2" OD (2" ID) 30 degree bend electrical PVC (gray) with a 4" Uni filter with 2 1/2" opening.  The fitting for carb to intake pipe I already had.  Total cost for all 3 is about $24.  

Impressive Jim. So is it done yet or you still tweeking on it? The Kamikaze I mean.

That's really quite nice, where did the battery and electronics end up?

High-Def: Kamikaze 1 is about as tweaked as can get.  I had been reading up on intake dimensions and have been wanting to try one that was just a little narrower than the tube I used with the K1 to increase velocity.  My concern was if it would start to suffer at top speed.  My run earlier was after it rained and streets had dried but just before another shower hit.  I took it out on a section of open road and opened her up. I shifted from 4th to 5th at 75mph indicated speed then made it to 85mph before I had to slow due to traffic.  She still had some go left in her but I wasn't able to find out.  Indications so far is that it's it's not high flow limiting on my bike.  Maybe so for an engine that revved to 12k-14K but not one that revs to 6500.  

I was reading another site last night about a guy who had set up his bike on a dyno with an intake adjustable for length and made several runs with varied intake tract lengths.  He registered an 8hp gain when the intake length was at optimal length.  Those runs were all made with the same jetting setup.  

This setup is pretty impressive thus far but don't forget that it works in conjunction with my exhaust pipe.  The calculations we did on the other thread shows my exhaust puts my peak higher in the rpm range than stock.  A tuned intake improves the lower end torque.  Combined I get a strong pull that starts maybe 1500 rpms and seems to get progressively stronger through and to redline.  I don't have a tach so can't be more specific.  But the intakes seem to increae both the breadth and depth of the powerband.  I'll try to do the dyno later this week or early next week.  Also, the shaped metal under/behind the filter catches and puts cooler air at the intake area.  Here's a pic of what I discovered a few months ago:



The air in the blue area was noticeably cooler than the air right behind the engine.  The plate seems to catch the air that goes around my legs and pushes it up.  

JohnBoy- it's a pre-bent piece from Lowes.  It looks like this:

No turbulator in it.  The rounded the mouth of the intake tube though to reduce flow problems.  The filter and intake tube together have so little weight so support is not really a factor.  

V1- I could fit a 2 gallon tank there, couldn't I?  Hmmm...

I'm not sure which intake I'll use for the dyno.  Both seem to work pretty good but I want to do my acceleration-up-the-big-a$$-hill-not-far-from-my-house test.  I know how the bike does on that long, tall hill in stock form, with pod filter and with the K1.  

BTW- this is a great read. http://bmwmotorcycletech.info/InExTuning.htm

Would a fuel pump be needed?

Regarding this intake design, I used the Uni filter cause I was at a Cycle Gear shop and it was just sitting on the shelf with a $15 price sticker.  I could do it with a pod filter as well.  It looks to me that it I had kept the battery box in the stock location (with airbox removed) that this intake would still fit. The battery box would likely also act as a blocker to the air coming across the engine therefore supplying cooler air.

Are you planning to put a anti turbulator in it?

I've got a rental car (Chevy Aveo) for a bit due to unexpected engine failure of my '95 Buick Regal.    BUT, I noticed that the air vents on the Aveo have a device similar to the turbulator behind the aimable vents.  It uses little triangles instead of circles though.

did you deliberately lengthen it to get a ram effect off your heatshield that sits where bat box and airbox once did? if not, then you just kind of stumbled into a near ideal placement... not only is the air there cooler, but it would appear to be like the windshield of a car, and that's where you get the highest airpressue on a run, at the windshield... gonna idealize it without the anti-turbulator, and then try it with?

im still betting on 39.6 hp at 5200 rpm....lol  on the dyno, is his inertia, or strain guage?