Its been a while, i just felt like popping in here again and updating everyone, if anyones even interested in my original project anymore, but yeah my cylinder boost porting is still at a standstill. Started school again and dont have the proper stuff to get everything done with that currently but im still planning on doing it so dont worry, with dyno numbers.
However ive been doing some other things in the garage, when one projects gets put to the side u need to come up with something else to do, so im currently in the middle of building my own homemade intertia dyno.
Might not look like much, the base of it is an old electrical engine i picked up for free from an electrical engine workshop mechanic place, the rotor might be a little small and light, but it should do fine with 1st gear pulls and seeing as i dont think anything over 30hp will get dynoed on it everything should be fine. Will it give exact numbers? Probably not, more like ballpark numbers, u cant really expect to get numbers youd get on a namebrand dyno from this thing.
But it will work as a great tuning help, actually being able to visulize if that change you made actually had a positive or negative impact on your engine in the format of an easy to read graph instead of 0-60mph timed runs.
Coupled together with this i managed to pick up the discontinoued ArDyno arduino pcb shield that Alex from the twostroke stuffing channel on youtube once made. (great guy and great channel that i recommend every bike interested person in this forum to check out)
Im using a crankshaft positioning sensor to monitor the rpms of the rotor
I also while scrolling aliexpress came across some vforce 3 reed valves for around 10 pounds for the honda cr125, so i picked one up since ive heard that the cr125 reeds fit the Dtr engine block.
Looked and felt good for being a replica from aliexpress
I had to do some slight surgery to the inlet manifold since these reeds dont use the same style of stuffer that the dtr reeds do
Also hade to take the dremel to the vforce reeds, the actual reed part fit into the engine no problem but the bolt holes didnt line up, so i had to basically open them up so i could fit bolts through everything.
But its all working good and i dont think its pulling any air through my dremel modifications, can i tell a big difference in how the bike handles? Not really but that might also be because i dont ride it too much, would i be disappointed if i paid the 120 pounds for a real pair? Yes, but since these were a fraction of that im happy with it
Im planning on designing everything i need in cad and getting it 3d printed so this wont be as much of a hodge podge as it is currently.
Last little project ive been working on is putting together another expansion chamber but for my scooter instead, its my daily commuter since i dont have my license to ride the dtr yet, its coming together quite good, its all gonna be painted black before im done so dont worry about the rust
Sorry for such a long post that maybe shouldnt be on this forum tbh, hope someone takes the time to read it and finds it interesting, god i wish i could write this much at school