Just finished testing my new setup.
Pagid RS 421 pads and Prodrive discs (on MY00 4pots). We used a GPS datalogger and did 10 tests from 60-0. 1. 3.28 2. 2.76 3. 2.75 4. 2.66 4. 2.63 6. 2.69 7. 2.80 8. 2.71 9. 2.74 10. 2.69 The logger gave a "blip" when hitting 60 so the only variable is my right foot. How can I translate this in braking power ? Is there a formula for it or something to compare with ? Creepy PS : the first time is slower because the brakes where a little on the cold side ! |
add them all up and divide by 10 thats your mean answer.just done it and its 2.771 so from 0-60 on average will take 2.771 secshttps://www.emotipad.com/emoticons/Clever.gif
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That one I already knew.
I just want this numbers compare with something.. Is there a way to calculate the G-force out of this ? Or is there anyway to compare this with braking force from other cars ? Creepy |
If you make the assumption (possibly flawed ;)) that you have uniform deceleration, then you can use the uniform acceleration equations to work out the acceleration and F=ma to work out the force. These will, of course be rough averages...
http://www.physchem.co.za/Graphs/Equations.htm |
I hill climb my STI, and we measure to 1/100th of a second the start line 'G. There is a light beam at the start and one set at exactly 64 feet on from the start beam. If you cut the 64 ft beam in 2 seconds it equals 1 G accelleration.( 1 G is 32 ft/sec)
My STi on Kumho's and 314 bhp does the 64 in 2.06 secs. Just maybe this will help? A good EVO will do the same in 1.9secs, and there is an AUDI Quattro which will pull 1.7 secs!!!!!!!!!!!!!!!!! Dream on. Graham. |
911,
Not having a go but I don't understand the 64' after two seconds thing. Gravity is 9.8 metres per second, per second, which is approx. 32fp/s/s. If you instantly started accelerating at 1G, you'd do 32' in one second, and 64' in the second second, a total of 96' after two seconds. Vindaloo. |
Guy's were moing off topic here,
I just wanna know what the G-force is when braking at the above times..... Creepy |
Assuming linear deceleration (which is not right :)) then a=v/t = 26.66666/2.63 = 10.12 m/s/s
Which is about 1.03g (assuming 1g is 9.81 m/s/s) |
pretty impressive m8tee
shame u gits dont know anything bout wheel bearings:p lol |
Glenn, you mention linear declaration (wich is not right), what sort of deviation are we talking about here ?
1.03 G is pretty impressive (personal speaking), but I think it's more in the 0.9-0.95 G... Creepy (anyway, the car brakes good) |
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