125.

my next cilinder... tpr 50mm with 46 crank=90cc
im going to do other carters with a nsr 125 intake.
id like to do two engines.

that's also nice!!

from wich engine do you exspect more?

I think the 2fast engine, cause the number of CC's doesn't say much!

2fast 81cc or tpr 90cc what do think have more power?
i will test

2fast will have more power i think , very exited to see the results

Look's nice jack. I have made a similar water pomp for my project. I am building a mhr speed engine with a minarelli scoot cylinder. I haven’t tested the water pomp bur I am almost sure that it will work. This is a picture of mine.

thanks.
i saw your pomp time ago.
wicth do you prefer.
what cilider are you putting?
i will put a 2fast for minarelli.

I have a MHR speed cilinder of minarelli scooter engine (aprilia sr, yamaha Aerox). I don't no witch own I prefer I will no it wen I tested it .

well then, now he might understand what you're talking about

Dankje P!n0 sinds mijn laatste les engels is mijn engels HARD achteruit gegaan .

Jack: sorry for my bad englisch.

WICH = Which? Just bitching guys

Nice bike jack, i'm really looking forward to the final result

I think the 2fast has more power but the TPR has higher topspeed.. 2fast is more racey I think, better acceleration.

why do you think kip?

2f4r has 25pk + on scooters, its a very fast one, the fastist one for scooters