JamieK Posted May 8, 2002 Share Posted May 8, 2002 i.e 6th = 1.00:1 on a 3.62:1 (standard 1.6 SL LSD ?)Or does anybody have a table/know of a site that will work out gear ratio against final drive. Thanks Jamie Link to comment Share on other sites More sharing options...
EFA Posted May 8, 2002 Share Posted May 8, 2002 Jamie, Go to the links page in the K2RUM section at www.the-webbs.com Towards the bottom you will find a good little app for calculating gear ratio's/rpm etc. Fat Arn Visit the K2 RUM siteid=red> See the Lotus Seven Club 4 Counties Area Website hereid=green> Link to comment Share on other sites More sharing options...
JamieK Posted May 8, 2002 Author Share Posted May 8, 2002 Cheers Arnie, Gear Calc is now saved and will be getting some serious hammer in the coming weeks. There's quite a difference running the 6 speed through the SL 3.62 compared to the 3.92 diff. I'm now swinging away from 1.6SS and back to 1.6SL. Jamie Link to comment Share on other sites More sharing options...
scooby dooby doo Posted May 8, 2002 Share Posted May 8, 2002 you could work it out: engine at 1000 rpm 1:1 in gear box 3.62 at diff => 278 rpm wheel circumference (185/60R13) = 1735 mm so 482000 mm per minute 28900000 mm an hour 29 km an hour 18 mph. seems about right Dave Hooper - North London dmch2@lineone.net Link to comment Share on other sites More sharing options...
JamieK Posted May 8, 2002 Author Share Posted May 8, 2002 LOL @ Hoopy cheers Jamie Link to comment Share on other sites More sharing options...
scooby dooby doo Posted May 8, 2002 Share Posted May 8, 2002 i did a 4year physics degree. i like throwing it at cars and seeing what happens :) eg the difference between brand new and bald tyres is 1kg per tyre. since its at the edge of the tyre the rotational effect is worth nearly a tenth of a second to 60. far more interesting than massless elephants on frictionless surfaces pulled by a light inextensible string! :) also a big heavy flywheel compared to a light one can make several tenths if you work it out. no doubt someone will ask something i can theorise about again and i'll bite! :) Dave Hooper - North London dmch2@lineone.net Link to comment Share on other sites More sharing options...
EFA Posted May 8, 2002 Share Posted May 8, 2002 "also a big heavy flywheel compared to a light one can make several tenths if you work it out." Not true. A large flywheel requires more energy to overcome the latency its mass. I would also be surprised if the wear range of a tyre contributes very significantly to the tyres weight - on a light tyre like an ACB10 1kg is over 20%! On a steel belted radial, most of the weight is in the steel belts. Fat Arn Visit the K2 RUM siteid=red> See the Lotus Seven Club 4 Counties Area Website hereid=green> Link to comment Share on other sites More sharing options...
scooby dooby doo Posted May 9, 2002 Share Posted May 9, 2002 >>"also a big heavy flywheel compared to a light one can make several tenths if you work it out." >Not true. A large flywheel requires more energy to overcome the latency its mass. thats what i meant. it makes several tenths difference. a heavy flywheel being slower than a fast. >I would also be surprised if the wear range of a tyre contributes very significantly to the tyres weight - on a light tyre like an ACB10 1kg is over 20%! thats the whole point of what i'm saying! don't say i don't think or similar: work it out, measure it etc. eg work out the mass of the rubber worn away: a block of rubber thats 5mm thick, by 185mm wide, by 1735mm long. the density of rubber is not much more than water so call it 1000: 0.005x0.185x1.735x1000 = 1.6 kg. try it - weight a worn out tyre and a brand new one on some decent scales.... Dave Hooper - North London dmch2@lineone.net Link to comment Share on other sites More sharing options...
EFA Posted May 9, 2002 Share Posted May 9, 2002 Dave, applogies I seem to interpret the reverse to your intended interpretation..... How do you wear the tread off a slick?? (most soft tyres for Sevens have less than 5mm of tread as new - ACB10's have 4mm. Fat Arn Visit the K2 RUM siteid=red> See the Lotus Seven Club 4 Counties Area Website hereid=green> Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now