http://www.nilemotors.net/Nile/103361-a.html
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please deferential between pedal response and fade resistance... their is a massive difference between both
MMamdouh
If you do'nt mind explain this massive difference.Since1999 till 2010 and the brakes are still poor.Chinese cars started with fatal mistakes but they are doing their their best to eliminate them.I tried the BYD last week,wonderful car and the brakes are head and shoulders above the others.
pedal response is the ratio between brake power change and pedal travel... the more brake power you get for the same pedal travel means your brakes are more responsive... this has nothing to do with how powerful your brakes are
brake fade resistance is the amount of heat the brake components (basically rotors and pads) can take before brake performance begins to suffer... this depends on pad and rotors material as well as the driving conditions and ventilation
now given a standard issue 1.5 SOHC lanos it has the 236mm rotors and those are just enough for a senior citizen doing 60 on cairo alex highway... this setup is inherently week due to the very low brake fade resistance as well as low responsive pedal... this responsiveness issue is also found in other daewoo models and it is mainly because the rear drum setup that required periodic manual adjustment
the 1.6 DOHC lanos have 256 mm rotors and bigger brake pads and that dramatically enhanced fade resistance and added more to the safety margin of this car specially that it is accompanied with 14" rims and 185/60/14 tires
with the 236mm rotors i used to smoke the pads easily and in many instances i had no brakes whatsoever due to brake fade and that was on "in town" streets were speeds never exceeded 100 KPH... with the 256 setup i managed to brake from 170 KPH to some 60 KPH with no problems at all... i have never succeeded in making my pads smoke with the upgraded setup so this is clear evidence that the brake fade resistance was dramatically enhanced
this upgrade however didn't do much to pedal response as it is related to the rear setup... this was cured by swapping in the rear assembly of a '94 2000cc opel vectra which is a rear disk assembly and it doesn't require any manual adjustment thus keeping pedal response at its best
i have no idea why did Daewoo use this pathetic setup on the 1.5 SOHC cars... the car is heavy indeed and that is the most critical issue here... other cars that weight less tha the lanos can do with such setup but this car simply can't
also bear in mind that this car was developed in 1997 and production was seized at 2003 so forget about any future development or enhancements
MMamdouh
thanks very much for this professional explanation.I understand that this as you said pathetic system is not that efficient and should be tuned but my car is new and it hurts when you start getting head over heels so suddenly.When I hit the brakes pedal i feel that the car uses its front wheels only and the rear donot exist at all.
rear brakes does some 30 or 40% of the work... the rest is on the front which is very weak
the 1.6 DOHC lanos go the very same rear brake setup as ours... even the 1600 nubira got the same setup as well... the front is the real problem here
MMamdouh
the nubira got 256mm front rotors and those are as big as the ones i use on the lanos upgrade (the rotors are not identical though) and the brake pads are the same for both cars
the nubira does suffer from the pedal response issue due o the rear drum setup
MMamdouh