china bike 122cc dohc 4 valve project

[user 12599]

wow, this is awesome, cant believe it just stoped at that..... do you still have this beast? what the go with it now?

 

[tormentandglory]

She still runs sweet I ride it to work a couple of times a week. Its fitted to the z50 in my avatar pic.

 

[wogtaz ryder]

Thats insane its still going!!! Thats frigging awesome , What kind of power does it put out?? What other motor would you compare it to.

 

[tormentandglory]

It was dyno'ed at 11hp at 12,000rpm. Hard to compare it to other stuff because its in a road bike with very tall gearing. It feels very strong though, probably as good or better than a stock yx140 but with heaps more rev. It'll easily do 100km/h at about 9,800rpm. Should pull 120km/h if you're brave/stupid enough to try.

 

[bulldog93]

What sproket combo you running?

 

[tormentandglory]

17/30 gearing with 8x3.5 tires

 

[bulldog93]

Sweet . When is the next time your going to dyno it? Mind if you can get a pic of the dyno sheet for us?

 

[tormentandglory]

I won't be dyno'ing again. No need to, its running sweet. It was run on buzz bikes dyno and they don't have a printer set up unfortunately.

 

[tormentandglory]

This is the bike as it looks now

 

[wogtaz ryder]

Would of got my vote in Fotm (Y)

 

[tormentandglory]

Hehe I'll enter next month!

 

[tormentandglory]

Next project! I'm aiming for 20HP out of this one.

176cc V-twin. Billet cases, xr100 5sp gearbox and clutch, 2x TB 88 top end kits, custom crank with tungsten counterweights. Heads are modded for an external belt instead of timing chains.

Should be the fastest, most dangerous z50 ever

 

[Cordogs]

Holy **** balls!

Will definitely be watching this thread, that things going to be nuts!

It's good to see a few of you OG guys still kicking round building bikes, especially when they're this wild.

 

[LEO DPRO 037]

What frame will that go into with the barrel and head sticking up like that? Already the best engine ive seen!
Enjoyed reading your previous dohc build thread too so good luck.

Sent from my SM-G920I using Tapatalk

 

[tormentandglory]

Dummy assembled with timing belt.

I'll have to make some sort of perimeter frame, I'm not sure yet. Need to make it run first.

 

[xLOCOx]

holy sex! i think i need to see this irl! this thing is mental, has it got a name? something miniriders? hahaha
nah man, this motor is just an engineering porn folder!
sweet motor man you gunna run twin carbs? or single?

 

[tormentandglory]

Twin carbs, the tb kits come with carbs. They might be a bit small though. Once again, it needs to run before I start chasing maximum power.

 

[gottagetacheaperhobby]

Definitely need to see a vid when you get this running, amzing engineering.

 

[motorman]

I can't wait to see this running.

On another level. Awesome to see.

 

[motodevo]

This is awesome. As for a perimeter frame, how about a monkey r or the skyteam copy the "munster" they were complianced here for a few years.