mllcb42
New member
Must be sweet to have access to your own milling machine. Oh the fun I could have with one of those!
All my milling is done at TechShop in Menlo Park. They'll soon have a location in SF and San Jose as well.
Must be sweet to have access to your own milling machine. Oh the fun I could have with one of those!
How much do they charge?
That's awesome. I'll have to remember that.
Good luck with the rest of the build.
I would have had two internships already if SJSU had provided the same as well...damn state schools.
like the handlobraes kit that I have on my sv now conventional mount bars as opposed to cliponsGet some handlebars on it?
And you could mess with your air pump output by changing that piston's compression. And potentially vary boost and/or parasitic drag by controlling the old intake or exhaust valves to reduce pressure.
there's so much hacking potential here!
And you could potentially fund your whole experiment by selling a few custom CF tanks.
(wonders about making the boost cylinder switchable-from running fueled and sparked for low end torque, becoming an air pump for higher end performance?)
subscribed!
Very interesting, thanks for sharing!
The idea is to eventually place a bypass valve in the compressor cylinder so it can be "deactivated" when the air tank is full. Basically, fill the air tank to some psi higher than I'll ever run, then shut off the compressor, so that there's very little drag from it. When I want power, I have energy stored up in the form of compressed air. I could then refill this tank using engine braking, etc, so there isn't drag on the motor when I really want power. If the tank runs too low, turn the compressor back "on".
mllcb42:
A couple of comments about the rear suspension, from a guy who races his GS500:
The shock that was installed appears to be from a Katana 750, which is a pretty popular upgrade for this bike. It sticks well, and is sprung appropriately for my 180lb ass on the track. For a street rider, it would be ideal for someone who's about 200lbs.
The R6 shock you dropped in is a nice piece, but inappropriate for this bike in stock form. The spring is about as soft as the stock GS unit, and wouldn't be ideal unless you are in the 120lb range. Also, the rebound damping circuit is a little too soft. This is a great upgrade if you're willing to respiring / re-valve.
I was contemplating a bike like this, and I think if I were you I would have gone a different approach -- start with a SV-650. Replace the front cylinder cam sprocket with one that matches the tooth count on the crankshaft - now you could actually use the valves themselves. The change in sprocket size would run the engine through a straight 2 stroke intake/compresion cycle. Time it so that the exhaust valve becomes the intake, and connect the intakes of the 2 cylinders together so that the front cylinder feeds the rear.
Curious why you chose your approach. Cost?
Anyway, very cool project. Looking forward to seeing the results!
you could electronically pop open the existing valves for your bypass.
Don't know if you'd want to store more air than you need to even out the pulses. The Yamaha 650 Turbo had what was called a "surge tank" (basically a secondary non-filtered airbox) between the turbo and the carbs. It used a one way reed type valve to allow the motor to create some vacuum and bypass the turbo, which closed under boost. The surge tank also had a calibrated pop valve that would allow excessive pressure to vent.
Didn't store more than a few cycle's worth. So you didn't get too much loss with heated air cooling and losing pressure.
I can't wait for engine run updates. Been looking to the smaller megasquirt for a "someday" project of a DI two cycle for my Gyro