Hi Dave, Yeah sorry - I should have pointed out the little green thing was a little diagram of the path taken.
Yeah it'll be interesting to see what happens when I change a few bits and pieces - I just got the data logger upgraded to be capable of measuring 50 inputs and outputs - so plenty of scope to measure stuff :) Andrew > Andrew, > > Ahh.. was wondering what that little doppler thingo was. Hehe. All makes > sense now. Was thinking thats a biiig roll backwards and forwards. I'd be > interested to see what you can get with some $$ and development. > > Did I hear something about a US 510 pulling 1.5G lateral (with 13B > rotary) in a performance car review a while back? Up against Ferraris & > Porches etc etc? Anyone confirm this? Most likely with slicks i guess? > > Dave > > >>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<< > > On 11/12/02, 5:41:50 PM, "Andrew Greenbury" <[EMAIL PROTECTED]> wrote > regarding Re: 1600 measured cornering performance...: > > > > G'day Dave, > > > Yep the X-axis is time (secs). Motec use a sign convention of +ve > > lateral acceleration for LH turns, and -ve for RH turns. So the +ve > > lateral acceleration first measured is due to the 90 degree left turn > > entry, before the 180 degree RH corner (as per the little "track > > map" shown in the bottom right). The longer duration of the -ve > > acceleration indicates this as a longer corner also. > > > I was running Yoko 195/50/15 A539s, with nothing else special > > suspension wise. Not really lowered at the moment (which can sort > > of be seen here): > > http://opax.swin.edu.au/~185404/new_photos/dat5.jpg > > > Standard springs (as far as I know) and front antiroll bar. Camber is > > as standard with 240K struts. And I was only running ~32 psi as I > > was on a tight deadline so had no time to make adjustments for > > heavy cornering :( > > > Andrew > > > > Not bad at all considering a stock R34 is only good to 0.94G (if i > > > remember correctly). > > > What tyres? > > > Camber? > > > > > > What is the X-axis in? Seconds? > > > Is positive red (lateral) outwards on the corner? As in when you go in > > > the car accelerates as the car rolls/shifts weight to the outer wheels, > > > then accelerates back as it stabilises: hence the wave in the lateral. > > > > > > Keen to know more, > > > > > > Dave > > > > > > > > > >>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<< > > > > > > On 11/12/02, 2:31:18 PM, "Andrew Greenbury" <[EMAIL PROTECTED]> wrote > > > regarding 1600 measured cornering performance...: > > > > > > > > > > hi List, > > > > > > > For part of my work the other day I had to hook up a data aquisition > > > > system to my road 1600 to evaluate a sensor during cornering, so I > > > > thought I'd share some of the results if anyone was interested > > > > (screen dumps at): > > > > http://opax.swin.edu.au/~185404/data/ > > > > > > > For Melbourne listers, the corner in question is the Mitcham end > > > > entrance to the Eastern Fwy - a smooth constant radius (of about > > > > 30m) 180 degree right hand turn. > > > > > > > In the top screen, the red trace is lateral (cornering) acceleration, > > > > blue is longnitudinal (forward/braking) acceleration, and the green is > > > > vertical. The bottom screen is speed. > > > > > > > As can be seen, the little 510 reached ~0.9G cornering > > > > acceleration, while still remaining very balanced. For comparison, a > > > > V8Supercar reaches ~1.5G, and Phil Morriss's FJ24 racecar > > > > generated ~1.2G at Robroy hillclimb. > > > > > > > Regards, > > > > Andrew > > > > > > > > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@;datascribe.com.au/ ---------------------------------------------------------------------
