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simple brake questions

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Old Feb 8, 2003 | 09:00 AM
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Hi All :wavey:

issit that foot brake brakes all 4 wheel n hand brake only stop the rear wheel ? ? ? ? I was told that foot brake create more stopping power on the front brake then rear brake something like 70% front n 30% rear issit ? ? ? ? if its so can we adjust the stopping power like make it 100% front wheel braking ? ? ? ? I was curious about this question is because i came across some MPEG where there is a Skyline GTR32 (RWD) doing wheel spin for a good few seconds without the car moving . . . n i also came across a civic doing that but how do they do it ? ? ? for Civic they can pull the handbrake n start spining the front wheel . . but how they did that on a RWD R32 ? ? ? ? ?

ThaNkzZ :thumbup:
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Old Feb 8, 2003 | 12:20 PM
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Yes, in a front-drive car the brake pedal applies braking force to all four wheels, whereas the parking brake is only connected tot he rear wheels. Yes, in a front drive, most of the braking is handle by the front wheels. I believe there are devices that adjust the distribution of braking poer, but they are pretty costly. Road racers and autocrossers benefit from adjusting their braking system balance. On rear-drive cars, the parking brake usually controls the front brakes, which explains a standing burnout on an FR. Yes, if you engage the parking brake on an FF, it will hold the car still while spinning the front wheels.
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Old Feb 8, 2003 | 02:56 PM
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Also on RWD cars there are devices you can get called "line locks" that will hold the pressure you apply on the front brakes, while spinning the rear tires until you release the pressure on the front brakes again.
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Old Feb 8, 2003 | 08:42 PM
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Wow thankz Inspyral n 1stGenCRXer for the explaination . i understand now
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Old Feb 10, 2003 | 06:35 AM
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Originally posted by inspyral
... On rear-drive cars, the parking brake usually controls the front brakes, which explains a standing burnout on an FR. Yes, if you engage the parking brake on an FF, it will hold the car still while spinning the front wheels.
Wow... All the rear-drive cars I've known (including brothers, etc), the parking brake operates the rear wheels.

Dad's old Fords when I was a kid ('63, '67, '69)
'67 VW Squareback
'71 Opel Kadett
'71 Datsun 240Z
'72 Datsun 510
'73 Opel Manta
'74 BMW 2002tii
All of those are rear-wheel drive, all parking brakes are on REAR wheels.

The only cars I know about with handbrakes on the front are Saab 99 & Saab 900 up thru '87. Maybe the earlier stroker Saabs, too. But those are all front-wheel drive.
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Old Feb 10, 2003 | 07:12 AM
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Most parking brakes do operate the rear wheels, but a conversion to make them operate the front brakes is usually not that hard. Otherwise an automatic transmission and a left foot on the brake pedal will also do a standing burnout, compliments of the front brake bias.
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