with those 60's, you ve not enough power to get near Kev
Why are 60 fts so important
Moderator: Moderators
Julies Dart ran 11.6 @ 112mph at the Nats.pete walton wrote:This a copy of my last run at the nats.reaction.4048,,,,,,,,60ft 2.0831,,,,,,,330ft 5.9462,,,,,,,,,1/8 8.8562,,,,,,,,,1/8 mph 86.53mph,,,,,,,,,1000 et 11.1961,,,,,,,et 13.2612 mph 113.70. I would guess if i had not had a cup of tea and a biscuit on the line that could have been a chuffing good time poss fastest a bod.
Went 11.4 @ 117mph at Shakey with a 1.5 60 foot time.
A bit to go yet, Pete
When Dave & Mags Bailey are running we are not even in the Ballpark..........
Pete Wiseman; Cambridge.
Mopar by the grace of God
Mopar by the grace of God
-
Anonymous
-
Anonymous
here is the maths that will work if a few things are constant
in reality your acceleration isn't but for back of fag packet calc to see if 1 second on 60 foot time = 2 seconds extra at the line
http://en.wikipedia.org/wiki/Equations_of_motion
the classic equations are easier to understand
A level stuff unless you did O'levels
GCSEs just involve drawing a picture of the thing in motion
so if ya 35 or under you are screwed...
I know, i taught it (in english to children who couldn't speak english, i was supposed to i wasn't being spiteful).
I think if you use classic equations 1 and 4
where u is the speed at 60 foot V is the speed at the line
use equation 1 to work out average acceleration
R or S is the distance traveled 1/4 mile - 6o foot in this case
use meters, meters/second and meters per second squared for acceleration its easier
convert back to mph later
can't be arsed to do one.... i had to erase everything i learned to fit in idiocy, humour, how to rebuild a VW flat 4 and how to make things go bang
let me know if it works, i probably got it wrong...sbeen a long time
James!!!
integration diferentiation and stuff it scares me and I've lost me notes
dave
in reality your acceleration isn't but for back of fag packet calc to see if 1 second on 60 foot time = 2 seconds extra at the line
http://en.wikipedia.org/wiki/Equations_of_motion
the classic equations are easier to understand
A level stuff unless you did O'levels
GCSEs just involve drawing a picture of the thing in motion
I know, i taught it (in english to children who couldn't speak english, i was supposed to i wasn't being spiteful).
I think if you use classic equations 1 and 4
where u is the speed at 60 foot V is the speed at the line
use equation 1 to work out average acceleration
R or S is the distance traveled 1/4 mile - 6o foot in this case
use meters, meters/second and meters per second squared for acceleration its easier
convert back to mph later
can't be arsed to do one.... i had to erase everything i learned to fit in idiocy, humour, how to rebuild a VW flat 4 and how to make things go bang
let me know if it works, i probably got it wrong...sbeen a long time
James!!!
integration diferentiation and stuff it scares me and I've lost me notes
dave
The Greater Knapweed near the Mugwort by the Buckthorn tree is dying
yeah it seemed like such a good idea then i thought.....i really can't be arsed too much like hard work
acceleration is the key
and maintaining it for the full 1/4
first 8th its accelerating a big lump of car as fast as poss
second 8th its overcoming the wind resistance that goes up exponentially with every mph. which is why a ford pop aint the best car to go drag racing in
to do it right and miantain the same acceleration for the full 1/4 you would need a very wide torque curve and a lotta gears
a variator gearbox like on a modern scooter would be the go.
dave
acceleration is the key
and maintaining it for the full 1/4
first 8th its accelerating a big lump of car as fast as poss
second 8th its overcoming the wind resistance that goes up exponentially with every mph. which is why a ford pop aint the best car to go drag racing in
to do it right and miantain the same acceleration for the full 1/4 you would need a very wide torque curve and a lotta gears
a variator gearbox like on a modern scooter would be the go.
dave
The Greater Knapweed near the Mugwort by the Buckthorn tree is dying
Yeah! But they are hardly street driven to and from the track,eh? Oh! I forgot! Mr TrailerQueen!!!!!!Pete wrote:When Dave & Mags Bailey are running we are not even in the Ballpark..........
Reckon I could go 11.4 if I trailered my car!!
Should we have a "Trash Talk" section???
<center>
The name is Kev, nowadays known as Kevvy or Pommie C***!</center>
The name is Kev, nowadays known as Kevvy or Pommie C***!</center>
