brake pressure

[Joe DeMarzo]

Will a stocker leave the starting line for RT only faster, slower of the same whether I pump the brake before I stage or just roll in as at a traffic light? I leave at 1800 and holding it is not an issue.

Thoughts?

[bigfoot584]

No difference 1800 is 1800 no matter how you get there,
your calf muscle would benefit that's it.

[Chris1529]

I think that reaction time has a lot more to do with your converter specs and where your front tires are with respect to the light beams than it does with brake pressure.

Front and rear tire pressure affect it too.

If you try to crowd the converter too much, your reaction times will probably slow down as the converter "gets tighter" and looses some of its ability to flash.

You may find your car launches well at 1800 rpm, but it may react quicker at 1700 rpm or it may react much slower if you try to launch at say 2300 rpm.

brake pressure is one component that affects whether you can hold the car to the point your converter will stahl, but I don't think it has that much to do with reaction time.

[bigfoot584]

Chris thanks for chiming in, not sure what I
was thinking at the moment but I took 1800
for psi instead of rpm's .
Senior moment that was it, ah that's the ticket.

[Chris1529]

Now that I look at it again, he may be talking about brake psi.

[THE LEGEND]

Depends on how much. 100lbs won't slow you down but 500 may.

[Eman]

I would think that the harder you're pushing on the brake pedal the slower your leg would be to release. I've thought of putting a brake pressure gauge on my car just so i would launch at the same brake pressure consistently. I have leg problems and the "feel" in my left leg isn't consistent, unfortunately sometimes uncomfortable and painful. What brake pressure do people with gauges generally shoot for while staged?

[Joe DeMarzo]

I leave at 1800 rpm, no brake pressure gauge in this car. I had one in a previous car and left at 800lbs every time. I left hard on the converter in the other car and wanted to be consistent. At 1800 it is like being at stop light, lol.

If brake pressure doesn't change reaction time than why do we care if we leave at the same brake pressure???

Thanks for all the insights

Good stuff.

[Signman]

Joe I always over simplify: The further you step down on the brakes the longer it takes to get to the point where they are overcome by engine power at the same RPM when you swap feet.
Raise the RPM step down harder to hold RPM is closer to Stall should improve RT.
In the case of cars that need to pull the wheels out of the beam to cut a light leaving lower may hit the converter harder and Pick the tires up quicker, rear suspension also plays in to this as well tire pressures.

[George Mirza]

Originally Posted by Joe DeMarzo

I leave at 1800 rpm, no brake pressure gauge in this car. I had one in a previous car and left at 800lbs every time. I left hard on the converter in the other car and wanted to be consistent. At 1800 it is like being at stop light, lol.

If brake pressure doesn't change reaction time than why do we care if we leave at the same brake pressure???

Thanks for all the insights

Good stuff.

Hi Joe,
Brake pressure consistency comes into play when using a brake pressure activated two step. I believe when foot braking, once you put the gas to the floor no matter what the car is going to move, at that point any brake pressure will be over come.