Agree. No point to make it too small. They don't look like the size of saddlebags either. Basically takes the place of the fairing lowers at most.Once painted and maybe a louver on them they'll look good.

 

thats the idea. You know by our other work we can do a good job. Thanks for your comments.

 

Drive train! We use a duplex sprocket mounted midway between the crank sprocket and clutch, the conversion comes with a longer primary chain, of higher quality than the Regina OE one. The extra length gives all the tooth contact we need to drive the supercharger


As they say, imitation is the highest form of flattery. So thank you for the duplication of my idea!

 

Hi Lane. The idea to run sprockets on a run of chain has been around since the 19th century. On conveyor systems to name but one. To apply it to this application wasn't rocket science . But the simplicity in this application 1. Can only work with a longer chain. 2 can only work running the sprocket on top of the chain as the chain is inboard of the inner case and that would need replacing as well as the sprocket needing mounting high to get the chain wrap. 3. Multiple step up ratios involving extra pulleys/gears/shafts/belts is not required. 4. The Rotrex unit is the only unit around that has a high enough internal gearbox to make this work efficiently. 5. The Rotrex unit is probably the only unit to be small enough to run inboard and close to the centre of the bike and keep a better balance of the motorcycle. On other Harley's the units are mounted adjacent (outboard) the engine. So there are many fundamental differences compared to your designs. You're obviously a great engineer and you put together every version of a package that you thought would work with the supercharger you were working with. You didn't have the options open to me. I congratulate you on what you achieved.

 

I appreciate the acknowledgements. I really like the looks of your system. People don’t realize what we do once we have an idea, to prototype it., etc. THEN on top of it all...lets now make it aesthetically pleasing (this takes as much thought, actually even more, than developing the idea, and it truly shows with your kit)

I think the hp/tq numbers you’re getting with the Rotrax are awesome. I’ve played with a few of them on a two stroke application in the past couple years and have found them to be good, solid head units.

 

It's great talking with a fellow engineer who appreciates the effort thats involved in producing a good product. We need to meet up for a beer sometime

 

Just to confirm my calculations I Dropped the rev limit to 5800rpm and re geared the supercharger to 1:1.286. I said it will give a very fat torque curve of over 200 ft.lb and still give around 200 whp. Here's what I got. Unfortunately the front head gasket let go on the next pull so we need to look into improvements in that department. The bike is my Breakout with a 114 SE kit, RS468 CAM and D & D exhaust. welded crank. Mapping this time was with the SE Pro tuner. The motor was running too lean low down as you can see so there is much more bottom end to come. 120 ft'lb of torque at 2000rpm should make it nippy Ignore the notes I didn't get round to updating, this was still the C30-74 Rotrex not the 94.

 

As usual we continue to improve our products. We have taken a lot of weight out of the belt guard and also improved the looks in our opinion. Let me know what you think.

 

No beltguard???

 

Excellent! For a moment there I thought you omitted the belt guard. That one really looks good.