verslagen1 wrote on 11/25/12 at 20:03:23:

So if I took Justins advice and made it more stream line by using 2 90s cut and joined, would that create less turbulence?

Im not talkin about just Any Ol 90* bits,, but the Drain Waste & Vent type, with the long sweeping bends,

One part of engine tuning people dont study is intake design, I spent some time reading up on that. One recommendation that stood out to me was that its easier for an engine to get a gulp of fresh air in IF there is more volume between the filter & carb inlet. I modified the airbox to create a few more CC's in that area & left it. The more surface area the filter has, the easier it is for it to get air & the longer time between need to clean & in the box, its protected from some dirt & of course rain & stuff..


I wonder how many people who have taken fenders off & air boxes off would be working to add them if bikes all came from the factory w/o them,,

justin_o_guy2 wrote on 11/26/12 at 07:38:35:


Because such a design should be symetrical, the point at which the 2 are no longer separated, might be considered straight.  The stock rubber ducky is about 2 diameter long and tapers as well.  Good, sharp sectioning and joining of the 2 sweeping bends may provide the required length to straiten the air flow.

Diamond Jim did some great work with intake experiments.

EJID, there are some sweeping elbows that have a bigger bend radius.  Typically used where things tend to get caught in the bend, especially during the half time of the super bowl.  Those aren't much bigger than standard.

Stuff like these parts,, sure enough some time around a plumbing supply would be a trip on the bike & a chance to add some visual snapshots into the brain, things to consider, ideas,




Heck, with some careful slicin & dicin you mite even be able to get 3 pods on it,

I like the covers, too,, But,, determined people can find a way to put them up there w/o everything in between them thats there right now,, well,, maybe,, worth a look.,

I put a Ryca Scrambler style elbow on my Savage and did some time on the dyno. Without a filter there is a huge amount of turbulence, witnessed by a record of the slide jumping up and down. With a filter it settles down, but there is an approximate loss of 5 horsepower. A big percentage on a 35 hp engine. Ryca tells me they have had no problems with their set up and used the bike on 100 mile trip where it did "just fine."      


paulmarshall wrote on 11/25/12 at 20:57:55:

Still aesthetically pleasing Paul. It would have been interesting to know whether your knees would have cramped or interfered with the twin set up.

I scrubed the first design due to the T having sharp corners, and now because I have removed the Battery box I have more room to move. I was going to cut 2 90s and join them but decided to use this. I have been told that a smooth flow is important and this T only has one flowing side because this T is designed for the flow of water. I thought that if I needed to I would seal the sharp side but put 2 filters on for
aesthetics. As it turned out I left both sides open.