Using the stock sprocket and rev up to 10,000rpm, we can also get 80kph.
As long as we got the rev cut limiter removed and good valve spring, 80kph with stock sprocket is a piece of cake.
the good thing is, we still preserve the acceleration. If use 15-39, 415 chain, acceleration will add lagi

Penang rain like hell yesterday night and this morning.
I feel like I am in heaven when riding bike, it is so refreshing, hahaha.

you have 17bhp on engine, congrats


You try to full throttle for 1 minute, and then quickly stop the engine and check the plug. see if it is full of carbon?

chongkiatz, can you post me a ride-it cam?

This post has been edited by charge-n-go: Apr 25 2009, 08:36 AM

thanks dude. I think it is ok, because I need it by end of April to do my study. Now the camshaft mole is partially done. Btw, racing CDI won't damage engine one la. High spark is always good, because it gives better fuel economy. I've been running my bike for more than 2 hours continuously every weekend. Now my odo ady 26k, the engine is still very good.

You see, this kind of thing, the more airflow to engine is always better, because it can increase the engine efficiency. Same goes to high spark. The slight downside is engine produce higher horsepower which increase the wear and tear by a little. Convoy / long distance is not using the max power, it's just quarter throttle, so it is absolutely fine.

haha, just buy it. set the cutoff at 11k rpm. It may drop the top rpm power a bit, but it is worth to reduce wear and tear. Besides, you can try using back original sprocket size to have better pickup, as you can pull each gear further using higher rpm.

at 11,000rpm, 3rd gear theoretically can go up to 130+kph with 15-39.

I am using dual band BRT. Nothing much actually. It is just switching from the preset BTDC firing to 2 degree lower. Let's say if we set to 30 deg BTDC, OFF = 28 deg.

Lower degree increase low mid rpm torque, and higher degree increase high rpm horsepower. Stock CDI firing angle is aboug 10 - 15 degree only.

The spark produced by racing is still stronger compared stock CDI.

I need to look at those spec. One of them is for low-mid rpm, another one is mid-high rpm.
Mine can actually choose for mid / mid-high rpm by using the dual band switch. But i feel more syiok for mid-high, so it is constantly ON, hahaha.

your Kitti is unlimited rpm. Its your engine which limits the rpm.

It is impossible to have unlimit rpm on engine. Superior engine like R6 maximum only 16krpm.

The upper limit of 11krpm is very good already. Anything above that 11krpm, engine very easy to spoilt.

Of course, it is possible to have 15krpm, but the engine modification cost a lot. So, if u want to go for high rev engine, you should just change everything in your engine to super endurance parts, with very aggressive camshaft setting (which will sacrifice a lot of low rpm torque).

1) use mild camshaft. Recommend to use the custom camshaft that I make if you plan to use stock engine.
2) bigger valve head (21 IN, 19 OUT)
3) port and polish cylinder head
4) stiffer valvespring
5) Racing CDI
6) 28mm carburetor
7) Bigger exhaust manifold
8) remove air filter

The predicted result is, you are able to achieve maximum horsepower from 9000 - 10000rpm. Power would drop starting from 10krpm, but engine still can rev up to 11krpm. Just a rough estimation. This way, you can almost preserve the low-mid rpm torque.

And I can guarantee, with the setup above, you can easily ta pau FZ150i


Please state your budget.

Yes, stock is 22mm. You can go google around and read about how bigger carburetor affect performance. Basically, bigger carb shifts the powerband towards higher rpm and lose lower rpm. Provided, everything else remain unchanged.

I can't tell u exactly when my camshaft is completed. After the mole is ready, I still need to trial and error quite some time. Its for 150cc and below, chill

Install GPS also can steal one la. Those really advance GPS cost more than the bike. What's the point, it's only a cheapo 135LC, not a super R1 or Porsche.

If people disassemble the bike, take out the parts and leave an empty shell, take back also useless mah. Msia police so 'efficient', people 1 day ady can empty the whole bike.

If the thief is so pro, transmitter and receiver can be easily disrupted la.

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Added on April 26, 2009, 8:02 pmSame goes to me, hahaha.
If that's the case, no choice lo, claim insurance and get a new one. It is still cheaper than advanced GPS system, hahaha.
Security is important, but not up to the extend of thousands la.

This post has been edited by charge-n-go: Apr 26 2009, 08:02 PM

More than RM1k.


performance:
1) 57mm block and piston
2) remove air filter (free)
3) 28mm keihin PE carb
4) extra 180 bucks for NOB1 SSS if you can get it from chongkiatz
~RM450 (exclude pipe)

handling:
1) add front fork stabilizer
2) change to bigger rear tyre (90/80)
~RM160

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Added on April 26, 2009, 11:40 pmClutch doesnt add power. It just make the power transfer more efficient.
Focus primarily on air-fuel related stuff. It has the bigger performance increase compared to other mods.

This post has been edited by charge-n-go: Apr 26 2009, 11:40 PM

Yoshimurah

I have tried. AHM performance sux and it is fooking loud

Today during lunch hour, I managed to sapu a FZ150i with my Givi box sitting at the rear. It is about 5 bikes distance away.

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Added on April 28, 2009, 1:54 pmIts near to Sunshine Bayan Lepas traffic light. Green light and we GO.

This post has been edited by charge-n-go: Apr 28 2009, 01:54 PM

haha, mine not yet ultimate 135cc. I still have 3 more things to modify:
1) custom racing cam.
2) rejet carburetor to match custom cam (more air-fuel into engine )
3) NGK iridium spark plug

[BONUS] Big valve head with 21mm IN and 19mm OUT
^ this one is when i saved enough cash, but most likely I'd pair with my high compression 150cc engine.

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Added on April 28, 2009, 4:18 pmMy guess is you are doing a custom bore and stroke?

This post has been edited by charge-n-go: Apr 28 2009, 04:18 PM

no, i just want to use normal racing block. FZ150i compression is bad.
In PNG, pls go to HLY to order.

please list down all your mods.

and, what do you mean by set airflow?
if you mean how to increase airflow in and out of engine, remove air filter and change to a good flow exhaust pipe. the exhaust diameter must only larger than 1/4 --> 1/2 inch of the original pipe.