MOPED ARMY

Ya that's a neat way,

I go a bit further when I'm dialing in a bike I take it on a 10 mile loop that has Hills, hi speed straightaways and twisties.

I know the speed of most kits/bikes that I work on going up and downhills, hi speed straights, hot days, colds days, windy days north wind/south wind etc.

by heart, it's not hard considering I lived here for 25 years.

For example the other day I pulled out of my development on a polini kitted za50 magnum for a test tun that I took the head off to inspect and decarbonize (even though it wasn't bad), I make a left, nail it and as soon as I pass the first 35 mph (maybe three hundred feet) sign I hit 40 as it shifts into 2nd when I go past it, That's par for the course so I know I put it back/reassembled it right.

TIM's DYNO ramp...

I just gauge performance on how much my smile widens as the throttle opens.

if you live in savannah, going uptown on any main road you will cross henry and anderson streets. both have stoplights and they are 1 block apart. at night they are set so the far one turns green before the one you're stopped at. i fucking refuse to stop twice, so i lead it and run yellows all day. sometimes if i get stuck in the middle, i'll alley it over a block and cheat that shit.

well anyway, a bike that can stop at that first light, then wait till it turns green, and make it through the next one before it turns yellow has good accel and at least goes 40.

i don't like wearing my temp gauge out. i get the bike close to what i think is good, then test it with the gauge. i got a good wide open max speed test lap that's about 1/2 mile of slight down hill, then right back up it. i can usually get as hot as i'm gonna on that run. then i put the gauge away so i don't wreck it again...

the next test is tybee island. you pretty much run wide open for half an hour. 3 bridges, turtle x-ing signs, and a couple miles of 1 lane road w/ 50mph limit, so you kinda gotta go fast so as not to be a shithead. then you go swimming! if you make it back, congratulations! you've built a pretty good moped!

the first time i rode all the way to the beach and back was on my first kit ever. it went pretty good. by the time i got back, my bike was going all slow and i thought i killed it. i took it all apart. checked the piston first. kit was fine. rear tire was rubbing swingarm. bahhh! tuning was spot on. didn't even get too hot buring up all that rubber.

I snap it WOT and then listen to what my buttcheeks have to say about it.

Usually how quick it makes the poontang gush.

I have a three teir hillclimb route if it can stay in 1rst gear it's a pass.

anyone try any smartphone/gps tuner stuff?

i've used that in my car before, along with an OBD2 bluetooth dongler, but never played with some of the options for just speed based.

i think zero-to-whatever time would be very useful around here for comparing setups, like... i don't care that your bike can do 60 down a long downhill, i want to see 0-40 or 0-50 or whatever your bike can do... a GPS app that can factor in elevation would be useful too.

GPS speed, elevation, and i think one of the display modes displays the time with seconds.

I often think about those bicycle trainer resistance motors. you could spin a motor or alternator or whatever and just measure output and correlate it to some kinda power output - like a super DIY dyno, but there's no realy reason it wouldn't work. track your own RPM if you want I guess, or just pay attention to peak output and go from that.