EXE-Crew (Shaun Chiew) Winton Trackday 21st November 2010

EXE-Crew (Shaun Chiew) Winton Trackday 21st November 2010


2 days nonstop preparation after i landed from 7 hours flight, and only 2 hours sleep in total, plus 2 hours drive up to benalla, winton raceway... all that was well worth the long awaited 'winton fix' that i have been craving since May 2010... especially this time i will be back on RWD cars since nov 2008, which ended my 350z track journey.


my eyes got teary and happiness was indescribable on my first slide / oversteer / counter steer... and the 2nd... and so on... got i love the feeling of being fluid on the corner... i miss it. yes i admit i have been doing some trackday back in indonesia but Sentul circuit is more of high speed, braking and consistency like Sandown circuit if i have to find a comparable one in melbourne. but Winton is the whole other league... its technicality is hard to match... pity the tarmac degradation and lack of smooth ripple strip still hasn't been improved since the last 2 years i have been inactive...

anyway first, here are the best lap video:



and here are the video of the mistakes (highlights):


ok enough on the drama side. now the lap times:

Session 1: 40psi cold F&R (forgot to deflate ), Wing on, coilover damper hardest on all 4
2:05.6550
1:58.0340
1:56.7730
1:54.8880
1:56.4810

Session 2: 32psi hot F&R, Wing on, coilover damper 2 click from hardest front, softest rear
2:07.3110
1:54.8820
1:54.3690
1:53.8500
1:53.5820

Session 3: 32psi hot Front 30psi Rear, Wing on, Rear Swaybar off, coilover damper 2click from softest front, softest rear
1:55.7550
1:56.9950
1:53.3170
1:52.4790
1:51.2400 **PB Lap**
2:12.2270

Session 4: 30psi hot F&R, Wing on, Rear swaybar off, coilover damper softest all 4
2:17.1470
1:53.4170
1:51.9130
1:51.5490
1:52.4810

Session 5: 28psi hot F&R, Wing on, Rear swaybar off, coilover damper softest all 4
2:34.6290
1:53.2270
1:52.7400
1:55.3790
1:52.1610
1:52.0180

Session 6: 30psi hot F&R, Wing OFF, rear swaybar off, coilover damper softest all 4
1:55.4540
1:53.8550
1:54.1890
1:57.7790
1:54.8270
1:56.4450
1:56.9640


my personal best on the day was 1:51.2400... so i am still 1 second off my target / estimation of 1:50s... heck even my 1.3lt micra is still faster than this E30 at the moment... it is not the car for that i am sure... i just need to feed the throttle slower and smoother... better driving will be my next move...
the rest of the participants Personal Best:
http://www.natsoft.com.au/cgi-bin/results.cgi?21/11/2010.WIN.S1

being no LSD and stiff rear, the inner rear tyres always smokes up every corner... and that is due to either me trail braking or planting the throttle too early and too much...

i am starting to get the hang of it by session 3 and 4, however the street tyres start giving up towards the end of the day... will save up and invest on better rubber on the future.

the car at the moment is very front heavy. it is already was from factory and me stripping it made it worse , but i need the weight saving to get better power to weight ratio... the weight of the car stock was 1280kg and making around 125kw at the flywheel from factory when new... lets say now just around 120kw left, thats 9.375kw/100kg... i managed to strip around 57kg (17kg tar, 20kg seats, 15kg spare tyres, 5kg door trim and others) thats around 1223kg atm... 9.812kw/100kg not bad

now removing the rear swaybar helped the rear outer trailing arm to drop and adding grip on the corner... since the big brake at the front made the car dip even more under hard braking, lifting the rear and kick the tail out on the corner entry...

the wing helps abit, but the most significance place was the left sweeper... it really help settle the rear altho i think i could do with more angle of the wing... redrill the mount for next time!


the tyre pressure with these 225/45/17 are best with 30psi for me... i could be very wrong but i think it gives me plenty more grip at the rear and higher mid corner speed...


these are the photos, thank you for Christophe Delcourt (Dens), Vyets, and Daniel Chin-Wee (c2888):