I did some reasearch on here about lightening the standard flywheel and there was quite a bit of advice not to, as they arent the strongest once machined apparently!
I was told you could take a max of 1kg really off it by rik wood.
To light can have a negative effect on the inertia etc.
I had one on my punto, was s**t at cruising, and hills? No chance. But was rapid in pick up, and when changing down gears as the revs dropped quickly.
thought the lightweight one from ktec is about 3kg lighter and is supposed to make the car more revvy?
4.45kg, good weight that. 1kg off the standard roughly.
Ktec is alluminium isnt it?
You can get aluminium ones but i would be very wary as they can be too light and you'll lose all bottom end power, stick with the steel ones that are lightened and balanced4.45kg, good weight that. 1kg off the standard roughly.
Ktec is alluminium isnt it?
You wont loose any power by taking weight from the rotating assembly... its not possible
what it affects is rate of change of the engine, i.e. as it has less rotating mass it will effectivly accelerate faster as there is less inertia to overcome. Thus making the engine feel more responsive. Any feeling of more or less power is incorrect.
the reason people like VW etc have always used duel mass flywheels and heavy ones is to smooth out the rate of change thus making the car feel smoother to drive as the engine has to overcome much larger rotating mass to get to a set rpm.
its totally incorrect when you hear the engine wont pull up a hill because of a lightened flywheel, you simply have to keep your foot in as the inertia of the flywheel is less and cant be used to keep the engine spinning (even then after a very small amount of time the engine still needs X power to take you and the car up the hill etc)
in simple terms if you want a more responsive engine and dont mind it being a little less smooth then a lightened flywheel is a good idea.
its also correct to say they need to be well balanced, this is a given
Andy
best thing is that rpm drops dead down after letting go of the throttle , very responsive .
i remember a Vauxh%^$&^ i took for a testdrive and when releasing/coming off the throttle it would rage on forever before rpm died down.. terrible drive.
it's there for comfort. would'nt do it to a streetcar unless it was the Vauxh$%^