Any Rennlisters from New Zealand?
12-09-2016, 01:49 AM
Rennlist Member
Life has become an endless round of meetings - 2 days in Chch this week. Paua industry has agreed amongst ourselves to close down the immediate area, this is a 50% reduction & may be lasting some years. Steven J was in town again, so got to spend some time with him. Family all good - daughter got junior (yr 10/form 4 for us oldtimers ) dux last night at high school prize giving ,held at trotting club because school gym is a bit 2nd hand. The world's not all negativity. Took car for a "get fluids up to temp " run, need to slow to walking speed 3-4 times / km Cheers
Glad you got some car time in even if its at a reduced pace - will keep the miles down on her a while I guess.
Hopefully in a year or two this will all seem like a bad dream. I hope the Paua come right over time - maybe even bounce back more prolific than before. I feel sorry for the tourism operators and restraunters and accomodation guys. Been there and still got the fiscal scars. Not pleasant...
12-09-2016, 02:50 AM
Rennlist Member
12-09-2016, 05:25 AM
The Cups are both lighter and lower plus have a proper dual master system with adjustable balance bar. So they should be outbraking you handily anyway I'd say. Plus they likely have a significantly lower multiplication ratio (total system brake boost), which may or may not be offset by grippier pads. But as long as your backside still tells you when to whoa, anything that helps your head sustain incrementally more go is probably a good thing regardless. Best benchmark might be a good Cup racer running some reference laps in your GT3 maybe?Though that's not without risk of course.
12-09-2016, 06:50 AM
Rennlist Member
Walt. I think thats a great idea. Leong is going similar with Mike Eady this weekend to get some benchmark laps. I did ask Ray last time to drive it for reference laps but he didnt feel comfortable doing that. Well see what Mike comes up with vs Leong at HD this weekend.
12-09-2016, 04:54 PM
Rennlist Member
John, Chris. Doug and any others. Enjoy your road trip this weekend. Very jealous and hoping to enjoy a few more of these next year when Im in NZ permanently....
12-09-2016, 05:04 PM
Rennlist Member
+1 - have a blast guys. Gutted I couldn't join you! I've got to stop getting my car serviced so close to events.
12-09-2016, 06:51 PM
Three Wheelin'
The Cups are both lighter and lower plus have a proper dual master system with adjustable balance bar. So they should be outbraking you handily anyway I'd say. Plus they likely have a significantly lower multiplication ratio (total system brake boost), which may or may not be offset by grippier pads. But as long as your backside still tells you when to whoa, anything that helps your head sustain incrementally more go is probably a good thing regardless. Best benchmark might be a good Cup racer running some reference laps in your GT3 maybe?Though that's not without risk of course.
12-09-2016, 07:16 PM
Three Wheelin'
12-09-2016, 07:34 PM
Rennlist Member
12-10-2016, 12:39 AM
Rennlist Member
Day one driving is over. Rain for last 90 minutes of driving. 430 km and a lot of corners. One road sign said winding road for next 27km. Go cars not show cars.
12-10-2016, 12:41 AM
Rennlist Member
Pic
12-10-2016, 06:07 PM
There's a LOT of factors feeding into that grip and how exploitable it is though in terms of slowing a car. Even just in a straight line it includes things like total vehicle mass, dynamic axle loadings, vehicle centre of gravity, spring rates, suspension geometry and alignment, inertia of rotating wheels, tread and wall temps, tyre pressures, aero effects etc etc
That's before even getting into the braking system proper, where proportioning, ABS, and stability control vary.
A difference in either brake pedal ratios (as I put forward) or tyre type (as Graeme stated) alone are probably enough to make comparisons of brake pedal pressures between different cars quite difficult. While those two could perhaps be adjusted for, the sum of all the rest could only be done empirically or by some serious supercomputing?
Even just tyre pressures/temps or alignment differences affect real world braking capacity. Hence the suggestion to take your car out as a variable by benchmarking with a pro driver instead. Though they will still have some variabilty in their techniques, they are all pretty fast so the data should be useful.
I am jealous of the number of data channels you're capturing by the way!
Last edited by 996tnz; 12-11-2016 at 06:59 AM.
12-10-2016, 11:34 PM
Three Wheelin'
Macca is on the lookout for a moonlighting v8 supercars data analyst to figure it all out and pronounce on the 3 best and easiest time saving actions at each track. Wish I had data too!