Recent content by 4AM Engineering

It turns out that I'm pretty terrible at keeping threads going. Somehow got the bike going alright though! Runs like a champ. Still lots of odds and ends to take care of. Ended up 3d printing a seat from TPU which worked quite well. Motogadget everything, including front and rear turn signals...

Wow this bike came out slick! Such a clean job on everything, especially that tank.

Interesting points on charging and carbs, thank you! Finals season, so I don't have huge updates right now. But! I've had some fun lately. My first seat foam mold concept was to create a foam positive buck, bondo it, lay fiberglass for a negative, and then pour into that. After tinkering with...

Quite the gamut of material today. Created a power budget for steady state cruising and it looks alright. I've wired a couple CBR600 F4i-powered Formula SAE cars with EFI systems and they've always been fun. After the motor dies from gobs of low-rpm driving, the driver naturally cranks the...

Hi Maritime! Thanks for sharing. What did you do to the stator there? Is that what Randakk's upgraded stators do? One of the m.Unit's features is a built-in odometer. The phone app talks to the box and tracks mileage, maintenance schedules, etc using that wheel speed sensor. I have inferred...

Another fun installment. Definitely thought about going twin-turbo and did the calcs for 125hp with formulas from Garrett, it would go well with twin Garrett GT06 or two Suzuki Alto turbos. My numbers for MaP @ 125hp were 5.13 lb/min, P1c/P2c (estimated intake pressure loss at -2psi) = 1.8...

Hi all, There are some slick builds on here, so I figured I'd throw mine in and benefit from your ideas. I have never owned a motorcycle before, but my father's injuries from decades of riding Harleys inspired me to focus my senior Electrical Engineering project on antilock braking systems. I'm...