Small update on the exhaust..

Trying to follow the lines of the engine casing to leave the most room for the pulley hardware. It is a jigsaw puzzle:



Everything welded and in place. Now the rest is relatively simple luckily. It took way more time then anticipated  


air 'filter' is also in place..  


All nice and centered  

Eye Candy....

I think it's cool how you're working on all those ideas.
I also like to tinker and experiment.

But it is striking to me that you increase the power through a compressor and have narrowed the belt.(I must say that it looks very attractive)

I understand that exhaust, and it's nice that it takes a different route than normal. But don't get bogged down in too much detail.

I would rather use that time to lower the compression so that you can store more mixture in the combustion chamber. And to install such a DR coupling as Drag bike Mike designed.

I would think it would be very cool if this block produced a lot of power and that you could transfer it to the asphalt.

And if that's the case, I'll come and check on you and copy everything you done.

So get your stomach wet.

For everyone here, that,s a Dutch expression
(Denny is also frome the Netherlands)
I'm proud of you danny.

I also question the lack of triangulation. I think the lower motor mounts should help stabilize the swing arm pivot, but the spine is pretty long.  

But I'm not an engineer and Danny might be planning something after he gets the details of the supercharger and exhaust worked out.  

DragBikeMike wrote on 02/08/24 at 12:22:33:


ohiomoto wrote on 02/08/24 at 12:50:21:





You guys are correct, on both points.
Additional frame strengthening is on the agenda, and will be done once all of the exhaust is in place, and the bracketing is in place. Looking into either combining it into the necessary brackets, or placing it afterwards

An intermediate shaft will also be placed. Currenyl trying design a tensioner that can do the job for both pulleys in 1 adjustment to minimalise everything. Will update once the idea has been worked out a bit further.  

Also, the extension shaft for the pulley has been shortened, it looks much cleaner now:


And everything has been checked and measured and level. It is now ready for mounting it to the frame.





to be continued!

You are doing some nice work!

Isn't it fun to build a tucked-away high pipe?    You've had to do a lot more work than I did for the 2->1 exhaust on my Laverda 750 racer, but I did enough work that I made sure that the next two frames that I built were able to use the exhaust without modification.  The SF2 engine is a big lump to work around.  

https://motoconstructor.com/graphics/Laverda/LavSF2RRMK1001a3.jpg

cheers,
Michael