Graeme saw your helmet work in progress on FB. Really loving that mate - going to look Stella!! I'm not sure I'm patient enough though....

 

Sounds like you are keeping busy buddy. Congrats to your daughter - well done - must be proud!

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...

 

Haha, lurking much....

 

I prefer to use the term voyeur ;-)

 

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.

 

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.

 

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....

 

+1 - have a blast guys. Gutted I couldn't join you! I've got to stop getting my car serviced so close to events.

 

much more tyre grip potential with slicks on cup car makes a big difference I think.

 

been a long wait with a few false starts....

 

Yes, I think ultimately braking force is a function of front tyre patch and ultimate grip even more so that pad type, fluids etc

 

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.

 

Pic

 

Ultimately, yes, for a given car, pretty much just the grip at the four contact patches, especially the fronts determines the maximum braking performance. Thanks Graeme for pointing out that slicks vs R-comps is a huge factor too, which I'd missed off the list. Pad and fluid types help lap times by making it easier to modulate braking by having better application and release characteristics, not to mention high temperature consistency, but any progressive braking system with grippy enough pads to lock the wheels is theoretically able to produce a similar stopping distance. But that's under idealised conditions.

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!

 

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!