std pun boleh lepak corner juga .....

is tht 415 chain ???

Finally the custom pipe is done. Power curve characteristic doesn't change much. Biggest change is overall torque increase. Low rpm sacrifice a lil torque for better smoothness, top rpm can pull longer. Midrange become even stronger.

Pulling up on ~5% slope, 0 - 133km/h (GPS) in 700m. LC standard meter should b around 175km/h

Added Firestorm after that. Engine becomes quieter and the midrange pull is even stronger.

This post has been edited by charge-n-go: Jan 25 2015, 01:42 PM


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i see,how interesting~

blok size ?
ur weight ?
sporcket size ?
wat plug u using ?
find a programable CDI main la ..... uma , cheetah etc .....

autoclutch ......

62mm UMA
76kg
15-37
normal NGK
using BRT dual band, but UMA should b a better choice
autoclutch.

clutch spring ada tukar ?
sproket size boleh drop to 36 ...
i pakai dual band ..... senang senang main main ninja 250 .....
cam , valve spring pun ada peranan penting juga .. head ori port & polish or lacing head ?
try pakai better sikit punya plug ... G-power or above ...... unless u ada $$ iranium lah sebiji

Your LC has higher power to weight ratio, of course can main Ninja 250 la...

Iridium plug not suitable now that he is using Firestorm.

thianz
clutch plate tukar with 1 extra spring. Sprocket I am going for 15-35 when this set looks like durian.

dual band not that good actually. Ultimately BRT iMax is the best, can change timing at different RPM. UMA racing has 4 maps to choose from, and then further tune up/down the timing using 1 of the 4 maps as baseline. For dual band, the mapping is fixed from 4k to max, which is not really what I wanted. When the timing is good for midrange, high rpm suffered. when timing is good for high rpm, midrange suffers.

racing head with 22/19 valve, ported, UMA valve spring (which can go up to 13k), UMA cam (see the cam profile, should b 290-ish)

as alexei mentioned, Iriudium doesnt bring much power. I am using dual firestorm, one at spark plug, one at battery. It helps to reduce electronic noise and further enhance the spark accuracy and power.

This post has been edited by charge-n-go: Jan 26 2015, 10:02 AM

stainless steel 28mm?

stainless still 29mm.

planned to modi sumore? bigger bore ?

no time to continue my highway project jer .... driving car everyday ....

i prefer do few more grounding wire on motor body .... so the current cepat flow back , better respond ..... use std plug coil . ok jer .. syukur la ..dapat 11k rpm at highway pergi north side ..

u don't say... came to penang twice didn't say hello, just say goodbye as u leave.

This UMA is ady damn good base. Just need to increase the efficiency with better intake-exhaust setup. Will experiment with custom powerbomb when I have time.

Thanks for the sharing.

sure la.. y not?? std only.. just change the cdi to cdi oren thailand..
can leper2 sagat2 footrest..

yes.. SSS 415 chain..

changed to UMA racing CDI with map3, 38/16 sprocket. 900m reach 140km/h GPS (LC meter 188km/h)

Well, at 140kph, helmet also feel like flying off, need a full face liao

i tried power bomb, got lah little bit to zero effect . i using 32mm manifold, you up your piston 65 with 19-22 head will feel more than bomb exhaust.

crappy123
thanks for the input. maybe it doesnt work well for kapcai. I know Kelisa works damn well with it. Feel like increase another 100cc.

u can try up carburetor size, last time i use 38mm carbs with 65mm block n ori head korek in/out allot of dif compare to 28mm nsr carb.



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I tried 32mm carb, don't like its low to mid torque. change back to 28mm, feels much better. high rpm, 32mm really r0x.