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To Upgrade Lc


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#11
rallychamp

Posted 14 August 2013 - 09:46 AM

rallychamp

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QUOTE (limking @ Jul 26 2013, 12:07 PM) <{POST_SNAPBACK}>
Stage One
1 . ceramic coated block with forged piston 62mm ( Rm 300- Rm480)
2 . ori yamaha head mod 19mm exhaust /22mm intake (Rm380 )
3 . racing/fibre crank bearing ( FAG /SKF ) ( RM85 each/ RM65 each ) X 2pcs
4 . racing camshaft ( Rm90-Rm150 depending on brand )
5 . BRT / Rextor racing CDI dual band adjustable ( RM300 above )
6 . SP 28mm carburator or others 28mm carburator but not Keihin Art which is local coz too complicated to set ( SP- RM220 or others . RM220 above depending on brand / model / country of manufactured )
7 . free flow Exhaust with 28mm pipe ( exhaust perang best but illegal ) RM90 - RM 650 depending on brand
8 . rear disc brake set ( Rm 180 above )
Minimum cost of components without labour RM1690
Best with front 80/80 & rear 90/80 tyres with front 15 & rear 37 sporket size for an enjoyable & safe ride .
Stage 2
1 . crank up / jack up crank shaft 4mm or more ( RM380 - Rm500 deping on brand but beware coz it'll have a much shorter life span then ori but will sure produce more torque /hp ) / another cheaper alternative , crankup pin accordingly to your perferance 4mm ,6mm ....ect
2 . racing gear set - 1st , 2nd & 4th gear ( RM130 above ) or racing gear box ( RM480 - Rm650 depending on brand )
3 . racing clutch housing ( Rm 80 above )
3 . racing cluctch plate ( Rm45 above depending on brand & material )
Sure can max out 180km/hr on the Lc meter but also depending on your throttle respond skills & gears shifting skills.
Hope these info will help . Labour will depend on the mechanic with minimum labour wages of at least Rm300 . Minimum time needed for completion at least 8.5 hours excluding addtional 1-2 hours for setting the main jet & pilot jet of the carburator to the minimum correct sizes estimate 37.5-38 size or above & 125-135 size or above ) + tuning the engine .
30/07/2013-Tues . Met a former Pasir Gudang Circuit kapcai champion in 120cc & 150cc categories who now own a garage yesterday ( meet thru performance parts supplier ) . Accordingly to him ,for daily drivng + performance ,the best combination for Lc135 is 62mm Shark block & piston ( cheap but good in performance ) , Uma Racing 28mm carburator ( easy to rev & no need to shift gears all the time to rev up )+ Faito S4 Evo cam ( cheap & versatile - low ,mid & high ) .And rear sporket size 35 or 37 with front sporket size 15 . Can easily max out 180km/hr with these combinations of performance components parts with right setting & tuning .As for exhaust can use back the original muffler with a bigger diameter manifold pipe ( quiet & won't kacau by TP or JPJ ). important for the exhaust joints , the welding must be done by torch /gas . In order to set accurately the main & pilot jets + carb tuning ,the new block & piston have to run in / bedding for 1500km first before the 2nd installation of the cam ( that's where the jets setting & carb tuning comes in ) . Reason is the new block & piston might be damaged during high rev at setting & tuning time Needs a 2nd carb tuning & jets setting after another 6K km to 8K km mileage for a more better performance & f/c .That is for you , guys to judge .Just sharing my bits .



not bad..yes the former rider was true....i can vouch for him.... smile_thumbup.gif

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#12
limking

Posted 23 August 2013 - 12:43 PM

limking

    Tokyo Drifter

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Been using BRT Powermaz CDI & Uma Ignition coil + NGK G Power spark plug all these while .
Did the first stage mod about a couple of weeks ago with 1. uma 62mm ceramic block , 2. 28mm sp carburator ( thailand ) 3. faito evo s4 cam , fag highspeed crank bearing + fag engine bearing + tkjr conrod & abm racing exhaust .
1st mod : abm exhaust
Review = better performance
2nd mod : sp 28mm carburator ( made in thailand )
Review = much better performance (after 1st mod , modded a week later with 700km mileage OTR) .
Couple of days later took out the exhaust & replaced with modded the original exhaust with a bigger manifold . No choce coz cops always cari makan at JB imigaration exit & entry point .
Review = loss 10%-15% in performance but slightly better than the 1st mod .
3rd mod : 62mm uma ceramic block & all fag bearings + tkjr conrod ( modded 2 weeks later with 1450km mileage OTR after 2nd mod )
Review = Very much better performance than 2nd mod
4rd mod : Faito S4 Evo cam ( modded after a month later after 3rd mod 1800km mileage OTR)
Review : Best performance ever felt , easy to revs & can go 170km/hr easily .
During all these mods , the air filter box is attached to the carburator but without the air filter

Due to having to kick start ( when the engine is cold , it was easy to kick start but if the engine is still hot , needed a couple of hard kicks which at times can be rather stiff ) . Wanted to try the Uma starter but was told that it won't guarantee to works . So no choice , changed to uma cam & rejet carburator jets to 120/40 ( before was 125/37.5 ) after using the faito cam for 3 days , 450km mileage OTR .
Result : Vast loss of performance compare to Evo S4 . Now can only max out to 150km/hr .
Air filter box have to be taken out . Cannot even use open port air filter ( already tried ) coz the engine will pulled back when going high speed .
Bro rallychamp , any suggestions ? Using rear sporket size 37 at the moment & size 15 front sporket, will replace it with size 39 on rear helps ? The timing chaing sporket & balancer , am still using the original . Will it helps if I use a adjustable one ? And whatelse can be done to revise the performance as before without the 2nd & 3rd stage mod . Need to use cam with decompresser pin ( starter pin ) . Getting too old to kick start , lioa but not too old to speeds .
PATIENCE !!! PATIENCE !!! PATIENCE !!! IT'LL GET YOU THE BEST WHEN TIME IS RIGHT AND SO WILL BE THE PRICE

#13
limking

Posted 27 August 2013 - 07:38 PM

limking

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Problem solved , adjust valves intake lift & exhaust lift+ timing chain degree . But still preferred the faito S4 evo camshaft as performance is much better .
PATIENCE !!! PATIENCE !!! PATIENCE !!! IT'LL GET YOU THE BEST WHEN TIME IS RIGHT AND SO WILL BE THE PRICE