Pet peeve: No, you're not faster with VSC off
04-02-2016, 09:33 PM
#31
No, they aren't the same thing at all, and they are not redundant to the hydraulic brakes. The P-Brake is a cable actuated system that expands little brake shoes on the inside of the rear rotors. It does not operate the rear calipers. If you've never seen the brake system up close, take a look at section PB in the FSM.
Lego, we don't have an emergency brake system. The parking brake is just a parking brake, designed to hold the car in place when parking. If you try and use it in an emergency situation, you will stop the car. But eventually... and very, very slowly.
Lego, we don't have an emergency brake system. The parking brake is just a parking brake, designed to hold the car in place when parking. If you try and use it in an emergency situation, you will stop the car. But eventually... and very, very slowly.
04-02-2016, 09:43 PM
#32
Administrator
iTrader: (9)
Go ahead, use it in an emergency. I guarantee you will be disappointed.
Are you figuring this out yet, buddy?
Last edited by Rochester; 04-02-2016 at 09:48 PM.
04-02-2016, 10:48 PM
#33
No, it's not the same thing. Your G's parking brake cable does not compress the rear caliper pistons, it expands little brake shoes on the backside of the rear rotors. It's a separate braking system entirely. And that p-brake system isn't designed to apply the same kind of stopping force as the calipers, which is why it's called a Parking Brake, and not an Emergency Brake. IDK how many different ways to say that.
Go ahead, use it in an emergency. I guarantee you will be disappointed.
Are you figuring this out yet, buddy?
Go ahead, use it in an emergency. I guarantee you will be disappointed.
Are you figuring this out yet, buddy?
It's a lever, that operates a cable, that mechanically activities the rear brakes, either shoes, drums, or calipers. It's redundant to your power brakes.
Regardless of the mechanism it's a sh&ty way to slow down whether for an emergency or a cop.
Do you really think a cable compressing the caliper via the handbrake is going to provide significantly more braking than the drum such that it's a practical alternative to the power brakes, buddy?
04-02-2016, 11:11 PM
#34
Garner did most of his own stunt driving. He picked up his skills for the film Gran Prix back in the mid-Sixties. He and his fellow actors went to Bondurant's school and Garner was the only one who showed any aptitude according to one of the instructors.
04-03-2016, 12:00 AM
#36
No, it is the same thing.
It's a lever, that operates a cable, that mechanically activities the rear brakes, either shoes, drums, or calipers. It's redundant to your power brakes.
Regardless of the mechanism it's a sh&ty way to slow down whether for an emergency or a cop.
Do you really think a cable compressing the caliper via the handbrake is going to provide significantly more braking than the drum such that it's a practical alternative to the power brakes, buddy?
It's a lever, that operates a cable, that mechanically activities the rear brakes, either shoes, drums, or calipers. It's redundant to your power brakes.
Regardless of the mechanism it's a sh&ty way to slow down whether for an emergency or a cop.
Do you really think a cable compressing the caliper via the handbrake is going to provide significantly more braking than the drum such that it's a practical alternative to the power brakes, buddy?
And the shoes are tiny. I got to see them perfectly when I was swapping studs and had to pull the rear discs. That parking brake is not stopping anything at all.
04-03-2016, 08:11 AM
#37
Administrator
iTrader: (9)
No, it is the same thing.
It's a lever, that operates a cable, that mechanically activities the rear brakes, either shoes, drums, or calipers. It's redundant to your power brakes.
Regardless of the mechanism it's a sh&ty way to slow down whether for an emergency or a cop.
Do you really think a cable compressing the caliper via the handbrake is going to provide significantly more braking than the drum such that it's a practical alternative to the power brakes, buddy?
It's a lever, that operates a cable, that mechanically activities the rear brakes, either shoes, drums, or calipers. It's redundant to your power brakes.
Regardless of the mechanism it's a sh&ty way to slow down whether for an emergency or a cop.
Do you really think a cable compressing the caliper via the handbrake is going to provide significantly more braking than the drum such that it's a practical alternative to the power brakes, buddy?
There's something not-normal going on here with you that has nothing to do with physics. But I actually have a solution, and it's a really simple one, too. Get in your car, hop on the highway, then yank your parking brake. If it helps you get in the mood, pretend you need to make an emergency stop.
04-03-2016, 08:25 AM
#38
Administrator
iTrader: (9)
You probably know that he had a new model year Firebird Esprit from '75 through '78 on the Rockford files. Which makes me wonder which way money flowed there with product placement. But did you know that the reason they never used the '79 or '80 was because Jim Garner didn't like the redesigned look of the '79 nose? So they stuck with the '78 for the last few seasons. At least, that's how I remember the urban myth.
Go Garner!
And RIP, Brett Maverick.
Last edited by Rochester; 04-03-2016 at 08:32 AM.
04-03-2016, 09:45 AM
#39
OMG.
There's something not-normal going on here with you that has nothing to do with physics. But I actually have a solution, and it's a really simple one, too. Get in your car, hop on the highway, then yank your parking brake. If it helps you get in the mood, pretend you need to make an emergency stop.
There's something not-normal going on here with you that has nothing to do with physics. But I actually have a solution, and it's a really simple one, too. Get in your car, hop on the highway, then yank your parking brake. If it helps you get in the mood, pretend you need to make an emergency stop.
I'm not the one who instinctively yanks on the parking/emergency/handbrake to slow down when they see a police car
04-03-2016, 10:02 AM
#40
No, it's not the same thing. Your G's parking brake cable does not compress the rear caliper pistons, it expands little brake shoes on the backside of the rear rotors. It's a separate braking system entirely. And that p-brake system isn't designed to apply the same kind of stopping force as the calipers, which is why it's called a Parking Brake, and not an Emergency Brake. IDK how many different ways to say that.
Go ahead, use it in an emergency. I guarantee you will be disappointed.
Are you figuring this out yet, buddy?
Go ahead, use it in an emergency. I guarantee you will be disappointed.
Are you figuring this out yet, buddy?
I think the name was changed from emergency brake to parking brake due to some larger auto manufactures getting sued. However, the present "parking brake" system is probably less effective relative to the past "emergency brake" system because many now have a horrible drum system versus caliper system which they are fine with because they cant get sued for a "parking brake". I had the unfortunate pleasure of working on a parking brake system on my old Corvette that was a drum like set up. I have not worked on the G37 however...it is probably some weak azz set up also. When you see the internals of the system you will understand how weak it is in comparison to the piston e brake.
This is the parking brake system from a 1997 and 2004 but it is the same all the way until 2012 I know because I remember every piece because I had to tear mine apart due to the need to pass a stupid inspection...
See the lever below...the cable is attached to that lever.
The crapply little pushrod weakly floating about packed in grease is what the lever pushes on when you apply the handbrake...it then pushes the tappet on the bottom lower and the shape of the lever pushes upward against the nut which spreads the shoe. Thats it - that crappy little pushrod - between you and an emergency situation....nope... Horrible system ....barely effective for parking security...
Last edited by G37sGraphite; 04-03-2016 at 10:09 AM.
04-03-2016, 10:19 AM
#41
Administrator
iTrader: (9)
04-03-2016, 10:23 AM
#42
FMVSS 135 regulates braking systems in passenger cars and doesn't mention "emergency" brake at all. They are almost always used interchangeably despite some differences in the mechanics.
I recall reading that the whole electronic parking brake is due to changing motor vehicle standards and is needed to tighten the cables beyond what is possible with traditional hand/foot brakes.
I recall reading that the whole electronic parking brake is due to changing motor vehicle standards and is needed to tighten the cables beyond what is possible with traditional hand/foot brakes.
04-03-2016, 12:17 PM
#45
My old camaro had a brake handle near the shifter too. When yanked there was noticeably more braking force applied than performing the same action in the G. From what I can remember, the system used a cable to actuate the pads in the rear calipers. There was no drum brake system involved.
Here's a good view of the caliper.
Here's a good view of the caliper.