4t tuning thread

[ryanf062]

my performance modification for the season is a 13 year old learner rider.

[woodyracer]

my performance modification for the season is a 13 year old learner rider.

are yu moving up a class??

[Buckets4Me]

Some more handy calculators. http://www.wallaceracing.com/Calculators.htm

Don't get 2 excited about the HP one as it is working on a 170hp per liter. The reality is you have to have something very special to produce more than around 150hp per liter on a single cylinder. But it is possible. The rest have been handy, exhaust and intake especially they are simple to use as well.

Happy engine designing.

so 22 hp at the wheels for a 100cc isn't bad then ????
220 hp/ltr

[woodyracer]

so 22 hp at the wheels for a 100cc isn't bad then ????
220 hp/ltr

i dont know anyone that would think 22hp at the wheels is bad for a 100cc........apart form the pocket bike guys....they reaken they are getting 19hp from a 50cc !! ---sorry it jsut cracks me up!

[Buckets4Me]

i dont know anyone that would think 22hp at the wheels is bad for a 100cc........apart form the pocket bike guys....they reaken they are getting 19hp from a 50cc !! ---sorry it jsut cracks me up!

some of the italien ones are getting heaps but not that much 18-19???? (opps thought you said 50hp)

and that would be scarry

[Scotty595]

Think some of them get around 12-15HP

[Buckets4Me]

Think some of them get around 12-15HP

http://www.pocketracingimports.com.a...ails.aspx?Id=2
Name: DM GP Factory R 50cc
Description: Race prepared 16.5hp BZM Factory 50cc watr cooled engine + hydraulic brakes and all other options
Extras: Fully optioned

one starting with 16.5 before mods

then you could add this http://www.pocketbikesunlimited.com/...stage-pipe.jpg

or the b1
http://www.usapocketbikes.com/blata-...-pocketrocket/
with a claimed 16+ hp and only 39cc
so add another 10cc and claim it only gets 2hp more

[woodyracer]

but thats at the crank....ive been told by one of the minimoto riders his bike does 0-100km/h in 3 seconds.....that dosnt sound right......

[richban]

so 22 hp at the wheels for a 100cc isn't bad then ????
220 hp/ltr

We are talking about 4 strokes remember.

[woodyracer]

We are talking about 4 strokes remember.

still not bad, what sort of motor?

[Brian d marge]

Just been Having a look
Not to bad price wise at all !

Stephen

[richban]

still not bad, what sort of motor?

He's talking about 2 strokes!

[SS90]

I thougt id make up this thread to stop people putting 2 stroke ones off topic,

]

Teehee, your sure taught us rambling old fools there Max, boy, do we look silly......putting two stroke threads off topic with talk of four strokes......hahhahha, erm, hang on......

[SS90]

Do a bit more trawling through the bucket forums to see what this is all about. Fucken funny.

Pretty sure K14 is clued up on what works and what does't performance-wise.......

Erm, I am a little confused, are you saying that Kirk is correct in saying that removing the muffler from a CBR250 will (not only increase power), but, also increase it by 7 to 8 HP.....because I can see at least 2 things wrong with that statement.

I realise that you have a reputation for "shit stirring".........

[SS90]

i dont know anyone that would think 22hp at the wheels is bad for a 100cc........apart form the pocket bike guys....they reaken they are getting 19hp from a 50cc !! ---sorry it jsut cracks me up!

Don't laugh too hard there Max, Companies like "scooterattack" in Germany are getting upwards of 30PS from 80cc scootermatics............. and they just employed one of Europes top two stroke guys last month, so there is still more to come!

http://www.youtube.com/watch?v=T6bED...om=PL&index=64

Actually, this is a better one (and it's more than 2 yeas ago!)

http://www.youtube.com/watch?v=DuniDugA8VY