yo alex. are you sitting in a truck? I feel like its you

sure. I'd suggest you to use original block/piston and do port & polish, stiffen the absorber. Rear disc brake no nit la, drum brake more makan.

ic, where u see me?
i m js passing RP to unclecheang.

tmr i m going NBH actually. if u wanna ask abt porting, we can go there and I tell him what you wanted. It takes about 1 day to gao dim the porting. it's still faster than change FZ block (which may take 3 days+ for sui sui tuning).

For standard rear monoshock, you can lower 1" (2.54cm) front fork, but if you have stiffen the rear monoshock, I'd suggest less than 2cm. My own preference is change both front and rear absorber setting, you'll get very different cornering feel. Perhaps the next TT you guys can try my bike cornering performance.

it is within RM150 for porting. Porting helps to improve engine efficiency, changing block js pump up the engine capacity, but engine efficiency is similar or even worse than stock, since the cylinder head port size is for 135cc. Of course the best solution is change FZ block + porting, but will take some time and cost a lot.

for pilot air screw, the more u turn, the leaner it is. 1 1/4 turn is even richer. Try 2 1/4 turn and increase your idle screw timing a bit, perhaps you can regain pickup with good top speed.

haha, its just an easy tuning, turn the screw and try... if tak puas, then use back your 1 1/4 setting.


1) what is the exact measurement for a bigger manifold that ppl are using on their LC's?...from my reading....many have said a too big manifold could damage your top speed & pick-up (motor jadi lemau)
Usually the standard rule of thumb is to have a manifold at least the same diameter as your exhaust port size. I'd recommend a slightly larger setup, abt 3mm larger than the standard exhaust port size for better mid range torque.


2) is putting a bigger manifold...suitable for standard LC's?..does it bring any good?.
yes, it increased your low to mid range torque, but high end will suffer if you use back the original tail pipe (you got more gas flow out of engine, but the tail pipe doesnt allow you to do so). The high rpm range for sure will cripple.



3) other forum i have read about...in indonesia..their famous standard modified (minimum setting) is FZ block + FZ camshaft + FZ valve spring + standard carb (MJ 107/110, PJ 22.5) + standard exhaust + standard air box. Any comment on this u guys?...
It's pretty farked up, because the engine capacity has increased but the input and output from the engine is still standard. Yes, you can have more power, but not up to an optimized level. It is like feeding a 100kg guy with the same food like 70kg guy. 100kg guy is starving although he still got more strength than 70kg guy.

I've tried the singh groove on the previous 60mm block and piston, got a bit of power increase, too bad end up water coolant masuk engine

if i recall correctly, singh groove original initiative is to increase the torque when the engine compression is increased, so that the car can drive at relatively low rpm to save fuel consumption. I wonder if mr singh validate his innovative idea when the engine revs up to 10k rpm.

I've heard standard modified LC exhaust pipe. It's loud, although not as loud as Spayz pipe

mr cheang, how's your bike now? Does it run smoother and smoother?

If i recall correctly, BH mod pipe during cubprix era, 1 inch by 1 inch. The 250cc LC that he mod last time is self made one. but now he retired ady, too hassle, lol.

today i got a new discovery... although it is not about my bike.

its near to 10,000km for oil change (my car), when I check the engine oil level, it is below "LOW" !! what a shock. The pro foreman uncle is helping me to check everywhere for oil leak, but piston ring nice, valve seal nice, oil seal is nice too, perfectly fine.

So I called my sifu (tat guy who drive Putra). He said, if always high rev the engine and the exhaust flow is very good, some of the EO will go out from exhaust pipe. So after a few weeks, the EO level will decrease a bit and so on. (my car ady 4 months+ high rev )

Bee Hock told me to check EO level every 3 weeks too, I guess its the same theory. Just wanna share this experience to those who always like to rev the modified engine (esp with good flow pipe).

---

Added on November 19, 2010, 1:25 pmI want to order Amsoil for car and motorbike. Any Penang folks wana bulk order together? Amsoil 10W-40 motorcycle is about RM52. Market price is RM65+. It performs even better than Rock oil or Motul 300V from reviews. Interested please PM me.

This post has been edited by charge-n-go: Nov 19 2010, 01:25 PM

high rev means always running the engine at high rpm range.


yeap, theoretically it should be this way. stock LC carb is a bit too small for high rpm application. >24mm is more suitable. Last time when I have high cam with standard carb, the powerband gets very weird, sometimes got power, sometimes flat zone. once change to 28mm, the flatzones are all gone.

and LC valve spring, conrod and etc cannot tahan high rpm oso... poor quality

@alex and zelk, I already ordered amsoil for you guys. Can be used both 2T or 4T bike. ETA is next Monday.

That boss and BH have the same sifu. Last time I sent the cylinder head to him to skim, but it caused the water leakage problem a few months before (the skim isn't flat). BH helped me re-skim and till now everything is fine. but i would say his bakar kaki tiga is damn pro, even BH oso send the kaki tiga to him to fix.

wow, so fast page 100+

I've changed to Amsoil 10W-40. It is a lot better than Royal Purple 10W-40. The difference is as if semi-synthetic vs fully synthetic.

#1 oil memang #1... awesome!


alex and tony: the 'newly' ordered amsoil 10W-40 still lack of stock. My current 10W-40 Amsoil was bought back in Sept 2010. Sorry to keep you guys waiting soo long.

zelk, alex: 10W-40 Amsoil is on the way now.

aaron: I didn't order extra amsoil because it is very expensive. my cost price oso more than RM50 ady. Perhaps you can use other EO first until I order the next batch EO.

---

Added on January 14, 2011, 1:29 ambtw, just wondering if you guys have any TT session in Penang this month? I'm fine with both Penang Island or Butterworth next weekend after lunch. Finally my work is not that busy now. Phewww.....

This post has been edited by charge-n-go: Jan 14 2011, 01:29 AM