DavidM

Woohoo!!! Just got back from Winton and I came back with 1:40.6 time ... my best ever!!. This is not in an S2000 but in my 350Z on R-spec tyres. Not sure if I can get into 1:39s, but the car has certainly got 1:39s in it.

I was at Winton with the WRX-club and it was a perfect day out there ... perfect weather, no mishaps and plenty of track time. I managed to get 7 sessions, which is about 40 laps ... 2 of those were passanger sessions and 3 were super-sprints.

There were no S2000s at all, but there was a worked (turbo-charged) Civic. It was certainly moving ... it was on R-spec tyres and was lapping in 1:44s if I remember correctly.

Also I had a friend with an EVO 8 there. It has suspension mods, 210kW atw but was on road tyres and he managed to get into 1:43s. It was his 1st time at Winton even though he's been to other tracks. It was certainly moving.

Aircon

Great time. Well done.

DavidM

Great time. Well done.

Thanks Aircon, I'm very happy to be in 1:40.xx. I have not seen you around the track-meets for a while ... do you still get out there and do the club-sprints?

Aircon

I haven't for ages. Kicking myself for not doing the Calder night. I think the FCA has a day at Winton in June. I might do that one.

DavidM

I think the FCA has a day at Winton in June. I might do that one.

If you're also looking for other events then check out the club-sprint calendar from most of the local clubs in here:

https://www.s2ki.com/forums/index.php?showtopic=256911

It's a shame to have a car like that and not give it a good workout once in a while. If you need someone to do it, I'm more than available ;-)

NeO SAMuRAI

Thats a spectacular time David, well done!

tafka TMB

Great time David. Are you going to stop now that you are as quick as Motor nmagazine in an Evo 8 or keep on going for the Exiges time?

Found this on the HRT website:
http://www.hsv.com.au/racing/tracks/winton.htm

http://www.hsv.com.au/racing/tracks/calder.htm

DavidM

Thats a spectacular time David, well done! Great time David. Are you going to stop now that you are as quick as Motor nmagazine in an Evo 8 or keep on going for the Exiges time?

Thanks guys, I'm very happy with the 1:40.6, but I'll be aiming for 1:39s next time ... so yeah, I'm after the Exige time next ;-) Though, I'll be happy to cut off another 1/2sec next time I go ... and even that will not be easy. Though, realisticaly I can see getting into 1:39s, but not low ones like they managed with the Exige.

Found this on the HRT website:

Those must be V8 Supercars speeds ... looks at the speed at the end of the straights.

DavidM

While I was at Winton I had a really cool data-logging device in my car. It measures the speed, G-forces, position and all kind of other cool stuff through a GPS. Not only does it measure this, but it also records all this data so that you can plot 'cool' graphs later and analize the data. I thought some people here would be interested in some of the cool things that you can find out from the data it records ... like for instance:

- My top speed on the main straight was 169kph (real speed)
- My top speed on the back straight was 150kph (real speed)
- My top speed on the pit straight was 141kph (real speed)
- My 'hypothetical' best time (ie. by combining my best sectors) is 1:39.86. That is without going quicker anywhere in particular, but more just by getting every corner/section right.
- Putting a 75kg passenger in my car drops my top speed on the main straight to 163.5kph. ie. I lose about 5kph with 75kg.
- Putting a 75kg passenger in my car drops my lap-times by about 1.5sec. That means that every extra 50kg in my car slows me down by 1sec per lap.
- My best 60 - 160kph acceleration returned 10.64sec (ie. 60 - 160kph = 10.64sec)
- My best 100 - 160kph acceleration returned 7.54sec (ie. 100 - 160kph = 7.54sec)
- My best 60 - 160kph acceleration with a 75kg passanger on board returned 11.94sec (ie. 60 - 160kph = 11.94sec, or 1.3sec slower than when solo in the car)
- My 2nd-to-3rd gear-change took 0.58sec on the main straight, and 0.48sec on the back straight
- My 3rd-to-4th gear-change took 0.34sec on the main straight, and 0.36sec on the back straight
- Largest lateral Gs recorded were 1.201g
- Largest braking Gs recorded were 1.224g

Also here is a very cool 'time vs speed' graph of my best 'solo' lap plotted against by best lap with a passenger. Bellow it is the 'lateral G' graph from the same 2 laps:



You can see that I had to brake a fraction earlier and also the acceleration curves are not as steep. And here are the lap-times and sector times for 3 sessions ... 1st being my quickest one, 2nd one being stuck behind other cars and 3rd one is clear but with a passenger. You can see all the best sector times highlighted:


And here's a map of Winton showing the sectors listed in the above table:


How cool is all this stuff ... I love it!

RedRover

Hi David, that's really great. How much did the data-logger cost?

I'll be really interested to see the same results from Phillip Island.