after borrowing a DL1 data logger from a pal of mine i was very interested to compare the cornering forces i get with my standard 190’ed exige with AO48’s. on flat corners i am regularly achieving 1.3 g’s. Which sounds pretty good to me. all done on a chilly track last sunday.
But as I remember back to my broon pantaloon ride at donnington last year in admin dave’s black audi thing, i was amazed how well it went around the corners. ( as well as the straight bits too!)
therefore i am wondering what sort of figures a sorted car can achieve around corners with A039’s after shedding a bit of weight and a decent geo job on good springs and dampers.
so if anybody has some data? i would be very interested to look at performance verses modifications. to see where the big gains can be found by which mods. and of course the asphalt surface has a influence.
further to this theme a mate of mine has (mk2 elise) 17" and 18" wheels and 205front and 245 rears or similiar, and he gets 1.45g on the corners with loads of rubber and ohlins.
i would like to corner this hard and retain the normal A039’s.
You won’t be able to sustain the same cornering forces on 039s - just not that grippy.
On 032s in the days when I bothered to check I’d get measured 1.45+ in my S1 Elise (pretty well set up). The 048 is similar compound and should give similar grip.
The Exige wing is not very radical but I reckon you should be able to get 1.8-2g on decent rubber once it’s warmed up.
I have no idea what you’d get with 039s but remember this is a hard road rubber compound and a floppy sidewall - not the same sort of thing at all.
Also where are you measuring the g? Location of the sensor can have some effect - ideally it should be low and as close as possible to the CoG to minimise errors.
Also where are you measuring the g? Location of the sensor can have some effect - ideally it should be low and as close as possible to the CoG to minimise errors.
I have tried the unit on the floor cross member and tried it on the dashboard too, with no noticable difference in results.
Also where are you measuring the g? Location of the sensor can have some effect - ideally it should be low and as close as possible to the CoG to minimise errors.
I have tried the unit on the floor cross member and tried it on the dashboard too, with no noticable difference in results.
There is no way you will pull 1.8 - 2.0 g in an Exige, so it’s not a measurement error.
so does anyone have any data logger figures higher than my 1.3g’s?
looking at the data after a go on the track is really informative, to see the line you took and speed, how well or late you brake etc… and gives you a target ‘best possible’ laptime made up of your best sector times. which give hope…
looking at the data after a go on the track is really informative, to see the line you took and speed, how well or late you brake etc… and gives you a target ‘best possible’ laptime made up of your best sector times. which give hope…
I hope that you’re looking at the data, once back at home, & not at the track.
For the benefit of those who are unaware, any timing at a track is a big no, no, because it invalidates everyone’s insurance (drivers/organisers/circuit owners), & could lead to the end of trackdays.
so does anyone have any data logger figures higher than my 1.3g’s?
looking at the data after a go on the track is really informative, to see the line you took and speed, how well or late you brake etc… and gives you a target ‘best possible’ laptime made up of your best sector times. which give hope…
On a test day last year at Silverstone I was driving SeanB car and the data logger registered 1.68g around the national circuit on 48’s
On a test day last year at Silverstone I was driving SeanB car and the data logger registered 1.68g around the national circuit on 48’s, [color:“blue”]whilst completely spinning around at least 3 times, due to a lorry spilling diesel [/color]
On a test day last year at Silverstone I was driving SeanB car and the data logger registered 1.68g around the national circuit on 48’s, [color:“blue”]whilst completely spinning around at least 3 times, due to a lorry spilling diesel [/color]
Seans probably still got the data on his laptop, maybe he’ll post it when he gets back from his holiday
so does anyone have any data logger figures higher than my 1.3g’s?
looking at the data after a go on the track is really informative, to see the line you took and speed, how well or late you brake etc… and gives you a target ‘best possible’ laptime made up of your best sector times. which give hope…
On a test day last year at Silverstone I was driving SeanB car and the data logger registered 1.68g around the national circuit on 48’s
Thats more like it, 1.68g! did you have magnets under it like a scalextric car? i would like to see the data and see where the car can achieve that figure. and SeanB’s car is pretty well documented in terms of preparation.
and all the data analysis was done back at home base. there are some rules to track shinnaniguns here in sausageland but you wouldn’t know it… i always don the headwear and fireproof underpants but you can’t help thinking what the hell is going on when you see a bus on the nurburgring or a convertable 3 series with three girls licking ice creams.
still these free for alls are a cheap and frequent way of getting a few laps in, and nicely fill the gaps between the real track events.
so does anyone have any data logger figures higher than my 1.3g’s?
looking at the data after a go on the track is really informative, to see the line you took and speed, how well or late you brake etc… and gives you a target ‘best possible’ laptime made up of your best sector times. which give hope…
On a test day last year at Silverstone I was driving SeanB car and the data logger registered 1.68g around the national circuit on 48’s
Hmmmm, I think he needs to get his g meter calibrated then.
In Peter Lucas’ S/C Honda MS car running in OzGT he has full MoTeC data acquisition and ADL. This car pulled a peak of just under 1.8G laterally under brakes and 1.5G longitudinally at the hardest braking corner at Eastern Creek. This was with sticky slicks and a gun driver ragging it. See video at Honda Elise | The UK's Top Honda Engine Conversion Specialist