Light Crank Pulley

found this in option fans mag. it seems quite popular in HK. is this wat we r refering to?? any good? :rolleyes:

http://photos.friendster.com/photos/...302822401l.jpg

i read this issue of option fan, they highly recommended the pulley...... I am suprised that so many people on this thread is against the idea of changing pulley.....

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Originally Posted by MRFIT

i read this issue of option fan, they highly recommended the pulley...... I am suprised that so many people on this thread is against the idea of changing pulley.....

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If the crank/pulley acts as a harmonic balancer - THEN you cannot change it for a lighter item without running into issues down the road.
IS this the case for newer engines ? IE Jazz engines ? *someone fill us in*

It is better off and safer changing your flywheel for a lighter item , using lightweight wheels or stripping out AC etc long before changing your main pulley :)

light weight the pulley is not the same as light weighting your car

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Originally Posted by MRFIT

i read this issue of option fan, they highly recommended the pulley...... I am suprised that so many people on this thread is against the idea of changing pulley.....

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That's y Oz is still in development on modifying a car. At least not as crazy as asian countries

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Originally Posted by TypeG

That's y Oz is still in development on modifying a car. At least not as crazy as asian countries

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:thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup:

do you ever sleep sunny??

haha........u too

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Originally Posted by TypeG

light weight the pulley is not the same as light weighting your car

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Obviously . Better spending money elsewhere first , than on this particular mod tho :thumbsup:


DO fill us in on what the lightened crank does for the Jazz for example tho - ;)

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Originally Posted by kimo

Ok what about the same size but lighter.

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it is the same size but lighter.... a lighter one would let the pulley spin faster (time wise) and easier (less burden)... effect would b better response

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Originally Posted by Zimp13

it is the same size but lighter.... a lighter one would let the pulley spin faster (time wise) and easier (less burden)... effect would b better response

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the pulley turns in exact co-ordination with the entire engine as it is connected directly to the crank - less weight would put it out of spec due to inertia forces ? ( out of balance ?)

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Originally Posted by bennjamin

the pulley turns in exact co-ordination with the entire engine as it is connected directly to the crank - less weight would put it out of spec due to inertia forces ? ( out of balance ?)

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very wrong indeed
lighter pulley make it spin faster and easier
for the people who develop the pulley have do some research and design on the pulley itself and as well concern on car balancing. moreover, a lot of people used it in HK and not any single one complain on that in HK Jazz forum YET.
Also we will trust what the book said as i am pretty sure they have a better knowledge on car mechanic than us including u.