Hey Guys
I'm on week 4 of my p/b experience and love it so far. I've gotten a lot of help from everyone on this forum getting it running. My bike runs great for what it is and what I know about them. However, I think I'm ready for more power. I know I can buy a new motor outright with all kinds of mods but I think I'd like to build one myself. I was wondering if maybe I could get some advice on what kind of parts I should use. Maybe everyones dream build or dream parts list. This would be a Cag based engine. I don't race or anything like that, just ride for fun so it doesn't have to be a pure bred race engine. Not to mention I also weigh 160lbs. and am 5ft-10in tall. Any input would be cool. Thanks guys.
__________________ Stock L7 Many mods to go
So far collected
WT-603
PBU Ltnd. Flywheel
PBU Billet Reed Kit
PBU Inferno Ignition
3 stage Blk. Widow Reeds
well firstly how much money do you have to spend? and second what goal are you trying to achieve?
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Matty_C aka MC Race Engines
L7 pro cag motor got a sh1t load of mods like custom pipe,custom reed setup,16mm carby,moded reed block,mod piston,flow ported cases to work with a fcc,custom carb manifold,new spark wire,lightend fly,worked 13;1 cylender and dome.
the bike handels like a dream with a 1inch lift kit
well you can look at peoples signitures to see what idea's you can get, alot of people on here are already running their "dream machines" lol like my sig... my engine is nearly finished all i need to fit now is my lightened and balanced flywheel and the order a better carb and change the gearing and then ill be happy to leave it as that.
if you only have abit experience and are looking for the easy power gains, then you should be looking at exhaust and carbs, stuff like that, but if you really wanna get stuck in then look around for a head kit and full circle cranks.
my minimoto engine was the first engine i built and started by myself and its quite easy and i got a big grin on my face when it started up. its much more fun if you build it yourself
a price range would help m8.
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cag
49cc 40mm ported
high compression head
ported and lightened piston
full circle stroker crank 52cc
rocket key
stage 3 big bore exhaust (3 peice set up with springs)
exhaust manifold bored to size of manifold outlet
carbon reed
K&N style air filter
alloy velocity stack
metal pull start cog
freewell speedo
high flow fuel filter
boost bottle
lightened and ballanced flywheel
unfitted:
different jetting to try 2nd place is the 1st loser
well a full circle crank is not allways best they do improve perofmance on a stock engine but with a mod engine the slow fule and air flow in to the transfer ports by alot thats whay in a highly moded engine its advised to use a hc crank yes the case presure will dorp abit and the engine may viabrate abit more but overall it will be a higher reving motor.
__________________
Matty_C aka MC Race Engines
L7 pro cag motor got a sh1t load of mods like custom pipe,custom reed setup,16mm carby,moded reed block,mod piston,flow ported cases to work with a fcc,custom carb manifold,new spark wire,lightend fly,worked 13;1 cylender and dome.
the bike handels like a dream with a 1inch lift kit
i always thought, that a fcc gave higher rpm if its balanced properly with everything else, and we dont know what kinda power range to look at.
so thats why a price range and an idea of what your looking for, would really help, astvw?
so matty? would i change the way my engine ran with a hc crank? i mean like drematically? and low or high power ranges?
thanks.
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cag
49cc 40mm ported
high compression head
ported and lightened piston
full circle stroker crank 52cc
rocket key
stage 3 big bore exhaust (3 peice set up with springs)
exhaust manifold bored to size of manifold outlet
carbon reed
K&N style air filter
alloy velocity stack
metal pull start cog
freewell speedo
high flow fuel filter
boost bottle
lightened and ballanced flywheel
unfitted:
different jetting to try 2nd place is the 1st loser
I could probably spend 4-500 dollars on a motor over time. I got about $300to start with. I would probably guess I'd need something that has low-mid power? I weigh about 160lbs. but I like lots of acceleration. I'm not real sure exactly what I need. I guess I'd like to find a happy medium between acceleration and top-end.
__________________ Stock L7 Many mods to go
So far collected
WT-603
PBU Ltnd. Flywheel
PBU Billet Reed Kit
PBU Inferno Ignition
3 stage Blk. Widow Reeds
Well James a fcc is fine for what you are running. But in my case and some of the other guys aiming for 6hp+ out of there motors then it can become an issue. due to the air and fuel mix entering the motor with a fc crank has to do 190deg turn into the transfers in the case then another 90deg turn up the transfer and this slows down the whole process so intake velocity is slowed down with a hc there is a lot shorter path and easier path for the air to flow so it is faster if the path is easier its like driving down a road with lots of turns it takes longer to reach the destination unlike going the straight road where it is a less time consuming path. i hope this makes sense. And I know there will be some people debating where a fc is better or a hc is better but this is my opinion and knowledge.
__________________
Matty_C aka MC Race Engines
L7 pro cag motor got a sh1t load of mods like custom pipe,custom reed setup,16mm carby,moded reed block,mod piston,flow ported cases to work with a fcc,custom carb manifold,new spark wire,lightend fly,worked 13;1 cylender and dome.
the bike handels like a dream with a 1inch lift kit
if its power your looking for grab a decent headkit pipe carb & reeds
but you could just spend the cash on a watercooled replica
i say put that 4-500 towards a banchee or dream bike rep
the aircooled blatas will probbly put out more power than a cag modded with chinese parts so b4 spending up on mods ask some of the guys with banchee dream bike reps & aircooled blata reps how they compare to a modded cag
i dont agree with the half circle vs full circle crank theory matty C suggests but thats only my opinion
you would be suprised what happens in a crank case under pressure.
stroke gudgen pin size is the main factor for rpms
I'm not real sure of how 2 strokes work, unless the internals are like that of a R/C car engine with the piston sleeve and timing ports. I have always heard that fcc's are good for high rev's but don't create as much torque as the hcc. Of course, this pertain's to 4 strokes. Is this information correct? I know 2 strokes use pressures created by the up/dn movement of the piston to move the intake/exhaust charges around via "timed" ports. Is this correct for PB's as well? And if so, how would the fcc affect this process? I apologize if throwng fuel on the fire of debate (no pun intended).
__________________ Stock L7 Many mods to go
So far collected
WT-603
PBU Ltnd. Flywheel
PBU Billet Reed Kit
PBU Inferno Ignition
3 stage Blk. Widow Reeds
hc is for higher rpm imo and fc is for torque. what i use if hc my bor uses fc in his bike hes got a piston port engine and he uses the fc as it creates much more torque to move the larger mid size bike. yes 2 bangers use case preasure to open/close reeds and so on and yes 2 stroke engines are similar to the rc car motor they are bothe 2 stroke. dont apologize its just everyones opinion on the fc /hc debate we all use what we think is best and are happy with what we use. and pbracing is all about having fun so as long as where having fun it dosent realy mater what we all use parts/bike wise.
__________________
Matty_C aka MC Race Engines
L7 pro cag motor got a sh1t load of mods like custom pipe,custom reed setup,16mm carby,moded reed block,mod piston,flow ported cases to work with a fcc,custom carb manifold,new spark wire,lightend fly,worked 13;1 cylender and dome.
the bike handels like a dream with a 1inch lift kit
with a 1inch lift kit
Linear Mode
