from calculation is sucks but need to hv the rider to ride it than only we know the real result. if my ex5 can get the old lagenda power & torque is quite gd le.

I've tried undersquare, square and oversquare engine before. undersquare is good for rider who revs low. Power delivery from mid-high rpm onwards sux. Original 135LC is undersquare engine, and this new Lagenda is more undersquare.

See those race cars and race bike engine, all of them are over-square.

hmm another new info to learn le, now only i know how its the shape was like.

anyone knw where can i get this kind of helmet in melaka or johor area?
price around how much?

OO the KHI RM110 at Penang other place dun noe XD... Btw the lagenda ZR is square or over-square??? Chris something u wanted badly XD http://www.mudah.my/Lc135+koso+fit+meter-6256331.htm

This post has been edited by bizzy123: Jun 2 2010, 10:06 PM

Wao ! The meter look so interesting
But.. too expensive..(for me)

wow its really fit leh the koso meter of tht lc

@bboyspirit

JB got 3 shop u can try..
1st. Johor Credit (JC)
2nd. Spare part fornt of Balai Bomba Larkin( near to Tangki Air)
3rd. Behind Kg Melayu Polis Station ( forgot what the Kg name)

really ar..? btw.. my dad's old lagenda.. 1st gen wan... uses sprocket size 15-38.. i see time i fainted..

mine stock already 15-39..

walao...

never tried new wan... but i doubt the shop owner will let me try tomoro..but i will try ask him and see how...

u calculated ar..? lol.. keng..

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Added on June 3, 2010, 12:03 amif i not mistaken.. calvin wearing one of it right..?

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Added on June 3, 2010, 12:16 ami also freaking tempted..

wish it would be cheaper like mayb 100 or 150.. then i'll be sure to get it..

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Added on June 3, 2010, 12:18 ami dunno wat u mean by square, undersquare or oversquare.. LOL.. all of us seriously became cuckoo after see wat u wrote in forum... i also go cuckoo d..

and also u quoted this :

1st: 2.833 (34/12)
2nd: 1.875 (30/16)
3rd: 1.353 (23/17)
4th: 1.045 (23/22)

what does (34/12) means..? and also the rest... shit lar.. i dunno that i'm this noob still...

This post has been edited by Aaron135LC: Jun 3 2010, 12:27 AM

Bro can u explain more to us about undersquared square n oversquare how to determine n how it affects the power delivery thnx bro

hohoho... many ppl asking u why d.. not just me bro C&G.. ehehehe...

me too.. even the what PJ & MJ la.. what 100 deg in 200 deg out la.. i read till bu cha cha

that is pro ppl talking about physics and mechanical... lol.. i seriously so noob liao la... my physics also blurr2..

The 100/200 thing is the intake and exhaust cam overlapping angle. Refer to the pic below... there are two circles:
1. The outer circle is the intake angle.
2. The inner circle is the exhaust angle.

The different overlapping angles gives different engine characteristics that C&G has been talking about.
Remember, these angles are also relative to the piston position, marked by TDC and BDC.


As for the gear ratio, it's the pairs of gears they use in the gear box.
Gears comes in pairs, one driven from the piston\crankshaft, the other go to the sprocket and move the tyre.
Depending on the ratio of these 2 gears, you get the gearing ratio.
Together with the final drive ratio, which is the "ratio of sprocket sizes", you get the effective engine RPM to wheel speed ratio.
In a way, with all these maths, you can sum up engine RPM = speed km\h.

Hope this explains. If you like it, copy and paste it in a text file somewhere... haha.

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Added on June 3, 2010, 1:01 amOh, PJ & MJ means pilot jet and main jet of a carburator. See second image I post below.
If you go to motor shop and look at UMA racing, those carbs comes with different sizes of jets to let you play. Have a look, it's free.

This post has been edited by alexei: Jun 3 2010, 01:06 AM

Woah.. just a small screw only ar.. ? then how to know it's set to 100 or bla bla bla ?
btw.. tomorrow wa ka continue read.. too late liao need to sleep
Thanks for letting me know the area of MJ and PJ

It should be engraved on the jets. Need to look closely...

i want to change my clutch plate to wave 125 and ignition coil to 125z/tzm.
how much does this cost.wanna know the price range.

and
1.both PnP right?
2.i heard they like to use uma racing i.coil.is it the same?

On the square square thingy.

Undersquare means, bore diameter is smaller than stroke length.
Square means, bore diameter is similar to stroke length.
Oversquare means, bore diameter is bigger than stroke length.

with the same engine size, undersquare engine has more torque than oversquare engine at lower rpm, but lacks power at mid to high rpm.

See the Toyota, Honda or Nissan road car, the stroke is always longer and the bore (piston diameter) is always smaller. Even my kelisa also like this. It provides good torque at low rpm (hence save petrol).

Race car needs horsepower, and hardly will run the race engine below 3krpm. That's why oversquare is better.

Square? It's a balance of torque and horsepower. 135LC with 58.5mm piston or 60mm piston is a square engine configuration. I personally like square engine bcoz I can get good low to high rpm power, as long as the tuning is done correctly.

This post has been edited by charge-n-go: Jun 3 2010, 06:12 AM

X1r

This post has been edited by ghost.lordz: Jun 3 2010, 12:51 PM