Anyone here fitted a lightened crankpulley or crankshaft in your car?
If Yes, how much effect doest it make?

This crankpulley is the part where you fit your Timing belt if im not mistaken?
and the Crankshaft is the thing that controls you car's valve timing?

Plan to do it on my car, But dont know how much would it cost, or how adverse the effect be. And most importantly, do you need to modify your intake/exhaust system after these mods? As you are pumping more power out of your engine?

As many people will normally go for Air-filters and Exhaust, This is internal engine Mod stuff

dude crank pulley is not consider as internal rite? i think it's still external (internal usually means ur pistons, valve springs, valve, blocks & etc).....depends on wat engine is on ur ride...just imagine holding a 5 kg crankpulley & start turning (for ur 1st test)....then 2nd test u use a 1kg crankpulley & start turning...which will turn faster & more turns? if u got the budget lighten ur flywheel as well...i heard if lightening ur flywheel will kill ur top ends faster as well i wonder isit true?

there are currently two types of lightened crank pulley in the market, one of which is undersized, and the other which comes with a damper. most of our standard pulleys comes with a rubber damper to absorb the critical vibrations comming from the crank.

advantage of having an undersized pulley is that the revs climb much faster. this is what we use in our race cars. with most race cars, we rebuild out engines much after every race, so con rod bearing wear is not a problem as we change the bearings during each rebuild. so con rod bearing wear is not a factor.

advantage of having a lightened and dampened pulley is that the revs will climb slightly faster, not as fast as the undersized pulleys, but with the damper in place, we will have peace of mind when it comes to the wear & tear of the con rod bearings.

hope this answers your questions on the crankshaft pulley

hmm true true as i know mythology lighten crank pulley came with a rubber damper which almost similar to ori pulley....hmm btw mad driver just a question...i know the revs will climb faster than usual but how about when you stuck in a traffic jam accelerate & decelerate situation when u decelerate will it have more jerk due to the innertia of the pulley have been lighten? how about hill climbing? will it hard to climb on hill compare to ori pulley due to innertia (or does this case just apply for flywheel ligthening oni)?

And I bet you gain a few horses by having it installed? Or more to "freeing" some horses.

same horses

but reduced moment of inertia, which means while your rev climbs fast it drops as fast as well.

general speaking u will hav an accelerated engine, but how it feels like I hav nvr experience

haha if it drops as fast i guess it the car will jerk when u decelerate i guess...u will feel the engine braking much greater than b4...

so far, the only jerk that i encounter during a traffic jam situation is that motobike that goes in and out of traffic

So you're saying better throttle response, is that it?

has anyone actually fixed it in their car before?

how much would a piece like that cost in your car?

I think all in all the engine will seem lighter than stock..but what CFS said is kinda true, If the Engine Rev's easier, it will Jerk easier too when you release your throttle.

mythelogy pulleys cost RM600
I am planning to install it in my car and see the difference

haha good 1 there lolz....but i'm sure mythology 1 is one good stuff..nvm i try friend car this weekend see got any effect or not 1st..mythology is quite light but not as light as those without rubber damper1 haha hehe

what car is your friend driving?

s4ph lolz u know ler...hehe actually a couple of friend install the normal type without damper type (from thailand made forgot the brand name adi) & a couple of them install mythology which comes with damper...from what i get feedback from them is dat the mythology is not as light a the normal without damper type....i wonder is there any issue on reliability on long term hehe

This post has been edited by CFS: Mar 16 2007, 11:12 AM

CFS,
i guess if u had the $$ u would go to the one with damper... firstly u will save ur engine a bit becoz it has a damper, secondly, if its too light then u will lose a bit of low end torque, by looking at the methology pulleys i guess that the torque loss is neglectable in the lower range. try to see the dyno chart for the one without the damper and compare.



cheers

haha i guess u know me well....i will get the mythology1 rather than the other1 due to it's rubber damper haha....the dyno chart i saw long ago adi hehe...
cheers

Mine will be ready next week so wait for my comments
Still got performance plug cables haven't install yet, will do them 1 shot with some injector cleaning and other services

so which is better in terms of torque in the lower end, say below 4K?
and power in the high end, ard 6K?

some of the members tat had done it
MYTHELOGY

thanks, i also have seen this b4, what i was referring to was if there was one to compare with the cranks pulley without the damper.

and also for a long time i have wondered, stock neo 0-100km/h is 8.4 sec???
stock gen2 manual is about 10sec so a car about 50kg lighter can do so much better?

lol brother 50kg is quite alot adi ler...hehe almost 70-80% of a human guy weight jor...lolz & not to mention like my car which have abs adding an additional 50kg weight to it, even my stock seat is dem heavy...lolz but 8.4 sec...errr i not sure possible or not...how heavy is the neo adi ar? 1150?

the ones without the damper is probabily undersized. that's why u find the performance slightly better.............but the trade off is that becos the pulley is smaller, the air con won't be as cold and the alternator and power steering pump will not be working at optimum during idling.

hmm true true....wonder isit true i never really try b4...have to sit on others plp car & try then oni know lolz..hehe

Oh.. Changing the pulley size will effect so many engine parts?
Didnt know that

yup. the pulley size is calculated by the manufacturer to give the best performance to reliability ratio as possible...

changing anything if not done properly is going to effect some thing or another...

i tink the effect of lightened pulley is almost the same as lightened flywheel.. easy to accelerate but will come to stall fast oso bcz of reduced moment of inertia.
besides changing the pulley, i hav heard ppl adjust the angle of the pulley sprocket....by a small angle,mayb 5deg,so that spark will come earli and combustion happens earlier,which wil avoid power loss. From an automotive book that i read,spark naturally should be out before the piston reaches its TDC(top dead center) / when compression stroke occurs.

shinjite is another satisfied user of the pulley

Yeah~~seriously can feel a difference in acceleration

maddriver : Even you are surprised, isn't it?

the very first time i had that pulley was on my waja 3 years ago. at that time, to custom make one of those with a damper cost me rm900++. and, boy, was i suprised with the improvement!

shinjite, what car u r driving?
mind to share the experience?

Just a slow and normal 4G92 1.6 Wira auto
Experience will be faster revs loh, pickup is faster

If my car is a manual, even better pickup

This post has been edited by shinjite: Mar 25 2007, 02:38 AM

can wheelspin or not? 1st gear la
kindly monitor if it helps on fc...
i plan to change car but hand itchy to keep my current car n mod it...

no need wheel spin, for what...useless
You wheelspin, I lift off already
On FC it depends on your driving style ler....mine still the same or even better

This post has been edited by shinjite: Mar 25 2007, 12:51 PM

haha, if can wheel spin even for auto, means more torque transmitted to wheels ma

don't want ler, I let the car just go ler~~~
No time for wheel spin also

Because auto need time to full revs also mah....that time also delay liao

So after fixing this thing U get more Torque lar?
I tot of doing this to my Wira oso.. But then.. Its a carby car..dunno should anot.

Dont know how much it would cost.. I dont think it will be sub 500$ rite?

Dunno who does it around Penang...can I like buy the thing and then let my mechanic fix it?

the pulley costs rm600 excluding freight. can post it to penang if u're interested

what about the MYTHELOGY crank pulley problem of squeaking sound when the engine is cold, i do not think their explanation to the problem is believable.

MYTHELOGY

boss, your pulley lightened and dampened ar?

yeah lightened and dampened

hands getting itchy liao
wanna install and see if can get performance of w/out aircon with aircon switched on

dun care, just switch air con on, nowadays too damn hot in the afternoons

wrong thread

This post has been edited by ngbh: Apr 12 2007, 12:47 PM

yes la thats why
wanna go fast also must go fast in comfort ma
no point turning off aircon

Yaloh, freaking hot nowadays....gila man
My whole interior burning XD

Dun off aircon at high rpm nanti end up opening windows everyday cos compressor rosak

This post has been edited by ceo684: Apr 12 2007, 11:28 PM

that one i know
i mean low to mid range improvement ler

that's becos the belt was not tensioned enuf. so far, i have not had and complaints from those who have fitted the pulley with me

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Added on April 14, 2007, 7:01 pmhahahaha! wanna hear a good one my ori pulley konk on me today. finally got an excuse to use the lightened & dampened pulley

This post has been edited by maddriver: Apr 14 2007, 07:01 PM

You actually mean do not on the aircon at high rpm, no?

Haha, your 92p sure free a lot of torque and HP already XD

it's everything that i expected

my waja now in Maddriver's garage for new pulley and 550 degree pads...now waiting anxiously.... kekkekeee

btw, just sat on maddriver's 4g92 satria...... nice to see the rev up to 7500rpm ....with stiff shocks, less comfortable but nice handling!

his car's handling is nice, sat on it too
Plus his car has the crankpulley installed, lagi fast XD

hahaa, he said he is very satisfied with the car now....
wonder how much $$ he has put it...
1st, 2nd gear wheel spin
3rd gear got minimal wheel spin.... impressive enuff for 4g92 sohc la

my car not ready yet, still at maddriver garage.... waiting anxiously...

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Added on April 18, 2007, 7:29 pmokie.... bro maddie is back with my car oredi...
havent test drive yet.... will let u guys know tomorrow....
550 degree pads were fitted in too!

i will upload pic as well on the golden brown crank pulley tomorrow

going home with lighter wallet today

This post has been edited by sledgehammer: Apr 18 2007, 07:29 PM

550 degree pads man, I am supposed to get that but on that day no stock :sad:
End up with 450 pads instead

Oh his satria ah, should be around RM8K gua XD

Why compressor can rosak if like tht??

What is 550 degree pads??

Thanks...
Noob

550 degree pads means that the pads itself can withstand up to 550 degrees celcius

those shocks on my car was not made for comfort. but the handling's great!

Oh~~ you're talking about brake pads ar~ Ok ok.. i get it... thz

kekeke, y dun u wait until 550degree?
or the pads very haus oredi... ?

how long it takes to install the pulley(on 4G15P)?
need to plan the journey

yo guys.....

hmm, how shd i start this short review....

For lightened pulley:

With a light tap on the accelerator, the car surges forward... most beneficial is the 1st gear. (of coz la)
Throughout yesterday journey back home, i drove like usual and the car reach the usual crusing speed (90km/h) much faster. As for constant cruising, i find myself lifting off the accelerator much much often as a slight tapping on accelerator will bring the car back to the usual speed.

This morning at connaught highway, acceleration from 50km/h to 90km/h on 3rd gear on my Waja 1.6 Auto was much better... usually i will press the accelerator harder to downshift to 2nd and pull until 70km/h for overtaking... but now i just need to maintain 3rd gear and the car pull all the way to 90km/h without much hesitation from the engine.

When going up slope with 3rd gear at 45km/h, i will always need to use 2nd gear as on 3rd gear, the engine rev refuse to go up, instead the rev drops. With this pulley, the rev is climbing steadily, although not fast

As for fuel saving part with this pulley, it is too early to tell, but based on the driving style that u need to adapt, which is lighter throttle, and the ability for the car to go faster with highest gear, i believed it is possible.

This pulley makes big difference especially at low rev
honestly, i cant feel any difference when revving at 5krpm above.... anyway, my waja 4g18 is not a high revving engine. somehow expected.
So IMHO, most beneficial part for lighted pulley is at stop and go traffic. It makes the driving more pleasurable. Although my car is coupled with a lagging gearbox, the car seemed to be very light.

Overall, i am satisfied For a heavy car like waja with auto transmission, it gives much better driving experience.
But not managed to test the car with 5 ppl onboard yet. Will update if i managed to test it.


550 degree pad:
I changed only the front pads while maintaining my old ones for rears. The pads were blue in color, as u guys can see in the pic. These pads has not thoroughly run in yet.... but yet it is already felt much better than my previous pads. As of now, the pads has only gone thru less than 80km. My previous pads was recommended by some mech and it was much better than proton ori's mintye. (mintye rite? i always confused between mintex and mintye). Thus if any of u guys using mintye, upgrading to these pads will give h3ll a lot of differences!

High speed braking was much improved compared to the pads i have earlier. A 30% pedal will bring the car stop confidently as compared to my previous pads, which i need to step 50%. (Note: waja braking feel is different compared to Jap cars like sentra or vios... ). Braking effort required when jam bumper to bumper is much lesser and relaxing now.

there is no cold bite problem with this pad. The pads provide braking force like usual in the morning.
Well, i will try the brakes on genting downhill if got chance But need to run in the pads first... hehehe. At the same time, i can test the lightened pulley as well.

Overall, the pads are very satisfactory!


The OEM crank pulley pic:



thanks to bro maddriver for the EXCELLENT service and workmanship!!

What brand is that blue color 550 pads?

em, the box written Rapid Stop....
not sure if the box is real or not coz maddriver keep my previous pads inside tht box....

RS RapidStop...

i wonder how does maddriver's pads stacks up against mintex, EBC, Endless, yadda yadda....

currently on G.tech M3 and they suck even worse than perodua's stock pads.

Avoid from double charging in the future plus, I had some serious problem with my brakes, my right side jammed.....freaking dangerous. End up overhauling both sides, new brake fluid DOT 4 and brake pads. On that day no stock for 550, so got 450 instead. When the time comes, I'll get the 550 ler XD

Good crank pulley review dude, mine also can feel the difference. 1st gear to 3rd gear can feel a lot of difference. 4th gear can reach 120km/h way faster than last time

wow, sounds dangerous la. ur caliper jammed izzit? the new pads shd last u for another 1 1/2 to 2 years i guess.... hehe.
i changed front only... the back remain old pads...

i think the lightened pulley shd benefit more on manual.... somehow there are times where i see the rpm climbing but the car not moving faster....then suddenly got a slight surge.... i think shd be due to torque converter lags....

one thing funny... my engine note is different now when revving.... it sounded more garang la...which i dun really understand....
how bout urs??

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Added on April 19, 2007, 5:55 pmif compare with mintye, mintye can tapau balik rumah
haha, i cant compare coz using some oem pads....

This post has been edited by sledgehammer: Apr 19 2007, 05:56 PM

Mine ah....still the same, not much of a difference XD
My rear brake pads still using original pads, focus is still at the front
If front tak makan, rear won't help already XD

Yup me 2 sometimes, its because the gear haven't change yet....my auto tranny definitely lags a bit, old technology Waja is way way better

Next time can meet up and discuss XD

This post has been edited by shinjite: Apr 19 2007, 05:58 PM

hmm, then funny lor... maybe the sound is psychological effect gua....
haha, yeah. maybe can meet up at maddie's garage and chat....and kacau him also but a bit far la....kekeke
i sit in my fren's putra auto..... it doesnt really lag that much ....although i see the way he drive quite torturing the GB...
i guess for proton car's tranny, putra auto one shd be the best gua....

glad u guys are enjoying the products, but the best products in the world cannot help u if u're not careful. drive safely and enjoy!

anyone?

lets see, unker volvo tebo?

i think only maddriver here can answer ur 4g15 installation time la.....

haha, terror wo~ macam tu pun dapat teka

My 92 installation time should be not more than 30 minutes, mine time delay because

1) maddriver taught mine was a 4G15, and he ordered the pulley for it, in the end have to call back supplier to order 1 92/93 pulley and I am lucky too at that time because last unit already and exchange the pulleys

2) Mine have to change the alternator belt if I am not mistaken because 5% undersized a bit, so end up with new belt. Or is it the timing belt...LOL, didn't really notice it as I know that his worker that does the job perfectly.

it takes about half an hour to change the pulley if we do not encounter any problems along the way, such as a stuborn crankshaft pulley bolt

maddriver, how does your brakepads stack up against 'branded' competition?? come on la really considering to junk my current pads already

and do you need RnD time for the EJ-DE engine? if im coming to change pads, then maybe swap one time straight

bang for buck, my pads will stand up to any of the competition. EJ? subaru ej?

ej-DE, daihatsu 1l engine for kenari/kelisa

you damn confident in your stuffs man will pay your garage a visit when i get the moolah

sure lah! i use all my products to the end of it's service life b4 i dare to sell them otherwise, how to tell if it's good or not? also, i don't like to use customer's cars as test subjects, unless they put a gun to my head and make me do it

*run to the nearest shop and buy a gun*

This post has been edited by WhitE LighteR: Apr 20 2007, 06:29 PM

just fixed my speedo cable today now can check if the claims made by some customers that this pulley saves petrol is true

sadly i can't calculate mine, my odometer kong adi >.>"

hahaha maddriver =
so do you make pulleys for my engine?

i might be able to get a sample, and it'll take 1 week to custom make one for u. currently, i don't have any for your engine

nvermind, it would probably take me months to save up for it anyways will let you know in advance when im ready XD

figures just in. before the crank pulley, my consumption was about 11.8 km per litre, now it's 12.3km per litre at my usual driving style.

haha, means it does help XD
I'll have a go in my Wira too

my FC will reveal after this tank now clocking on 22xkm
next refill shd be somewhere next week
last tank still managed to get 10km/l after some short period crazy driving with new pulley

btw, to all the guys that read my lightened pulley review, my waja has some mod done prior to crank pulley installation....

my mod was zenden 4-2-1 extractor and de-cat.
for auto user i dun really recommend to de-cat as it doesnt do much effect.....imho.

haha, mine long ago also decat already....lolz, couple up with a 4-2-1 extractor too prior to mine as well XD

what do u normally get?

wow! we had the same mod la!!!


10km/l also .... jam 70% in cheras.... hehehe

oh sledgehammer, if cheras, no choice, down there sure jam 1
full tank get >=350km also I happy liao if I stay in cheras

wow...it seems like a good upgrade.

how abt lighten crank shaft + balancing it? how much will it cost?