[davidm]

Me, Yun and Daniel were at Winton today. We were there with the WRX-club and as far as I was concerned it was a perfect day ... perfect weather (ie. sunny, but not too hot at all), no wind, dry, and no misshaps so the day run smoothly. There was about 60 to 65 car all up and even though me, Yun and Daniel started in the same class, they moved Daniel and Yun to a different class (ie. driver training).

Personaly I managed 7 track sessions all up (ie. practice, 2 passanger sessions, 2 timed-sprints and 3 super-sprints). Though, they had something against Yun as they would not let him out in the super-sprints while they had no problems letting Daniel in them.

My 350Z has behaved itself and nothing broke and it runs as well as before I left. I was pretty happy with the handling of my car, but am thinking that a havier rear swaybar would not hurt as rear-grip is never causing me any problems ... well I could use more power-down grip when exiting corners but that's always the case. I figure that the swaybar may transfer some of the rear grip to the front and make it even more neutral.

As far as the times go, I have set my new PB at Witnon with 1:40.6 ... which I improved from my previous best of 1:41.1 ... so I shaved off 1/2sec. I'm sure that 1:39s are possible but wheether I can ever get there I don't know. This was Daniel's and Yun's 1st time at Witnon and Daniel started in 2:05s in the very 1st session and finished the day with very low 1:50 ... almost got into the 40s. Yun started with 2:09 and finished with 1:53. Just for reference here are thew quickest cars that where there:
- Heavily worked and trainlored in '98 WRX (on R-pec tyres, rollcabe, gutted) = 1:34.xx
- Worked '99 STi (on R-spec rubber, 210kW atw, suspension mods, but street car)= 1:36.xx
- Nissan R33 GTR (on R-spec rubber, a fair few engine mods ,suspension mods) = 1:38.xx

Also I had a friend with EVO8 there ... this EVO has suspension mods and 210kW atw. It was his 1st time there (but he's been to other tracks) and he managed a very respective 1:43.5 time. Then there was a Turbocharged Civic that was lapping in 1:44s, but this car was faily heavily worked and on R-spec tyres. I could not really get past him in the straightline.

When I get the chance I'll post a list of lap-times from Winton that Cameron McConville managed during all the PCOTYs in 100% stock cars ... that'll tell you what the 'nut' behind the wheel is worth, and where you fit in the scheme of things ;-)

 

[davidm]

Here are the laptimes managed by Cameron McConville and Warren Luff at Winton. There laptimes are from the last 4 PCOTYs so not all cars were tested on the dame day (more like 25 cars each year). Though, conditions were always dry and hot as PCOTY is always done in summer.

1 Porsche 911 GT2 = 1.36.35
2 BMW M3 CSL (R-spec) = 1.37.06
3 Porsche 911 Turbo 1.37.07
4 Lamborghini Gallardo = 1.37.51
5 Porsche 911 Carrera S = 1.38.25
6 Chrisler Viper RT/10 = 1.38.44
7 Lotus Exige '05 (R-spec) = 1.39.17
8 Mitsubishi EVO VIII = 1.40.88
9 Lotus Elise 111S (R-spec) = 1.41.12
10 Mercedes SL55 AMG = 1.41.22
11 Subaru Impreza WRX Sti '05 (RE070) = 1.41.47
12 CSV Veloce 330 = 1.41.53
13 BMW M3 '02 = 1.41.56
14 Porsche 911Carrera '02 = 1.42.01
15 Porsche BoxsterS'03 = 1.42.09
16 Audi RS6 Avant = 1.42.09
17 Mitsubishi Lancer EVO VI = 1.42.23
18 CSV Veloce 330 '02 = 1.42.53
19 CVS Mondo GT370R = 1.42.71
20 HSV GTS Coupe = 1.42.78
21 Nissan 350Z Track = 1.43.18
22 Merceses CLK55 AMG = 1.43.29
23 HSV GTS'03 = 1.43.44
24 HSV Clubsport R8 '04 = 1.43.50
25 Subaru Impreza WRX Sti '02 = 1.43.60
26 Mercedes E55 AMG = 1.43.66
27 Mercedes C55 AMG = 1.43.67
28 Holden Monaro CV8'03 = 1.43.69
29 HSV GTS = 1.43.71
30 Subaru Impreza WRX Sti'03 = 1.43.75
31 Lotus Elise '02 = 1.43.88
32 Mercedes CL65 AMG = 1.43.94
33 HSV Clubsort R8'05 = 1.44.07
34 Honda S2000 = 1.44.09
35 Audi RS4 1.44.13
36 Audi S4 '04 = 1.44.31
37 Mercedes SLK350 = 1.44.35
38 Holden Monaro CV8'05 = 1.44.47
39 Ford Falcon TE50 '02 = 1.44.50
40 Holden Commodore SS'05 = 1.44.53
41 Mazda RX8 = 1.44.62
42 Mazda MX5 SP = 1.44.70
43 Holden Monaro CV8 = 1.44.80
44 Chrysler Crossfire = 1.44.87
45 HSV Mallo R8 = 1.44.91
46 BMW Z3 3.0 Auto 1.45.03
47 Bentley Continental GT = 1.45.03
48 Jaguar S-Type R = 1.45.22
49 BMW Z4 3.0 = 1.45.28
50 Holden Commodore SV8 = 1.45.37
51 FPV Falcon GT-P = 1.45.40
52 Honda Integra Type-R '02 = 1.45.53
53 FPV Falcon GT = 1.45.57
54 Mercedes C32 AMG = 1.45.59
55 HSV GTO Auto'05 = 1.45.62
56 Holden Commodore SS '02 = 1.45.64
57 HSV Clubsport R8 = 1.45.68
58 BMW 330Ci = 1.45.83
59 Jaguar XKR = 1.45.94
60 Jaguar XJR = 1.45.94
61 Ford Falcon XR8 '02 = 1.46.00
62 Porsche Cayenne Turbo = 1.46.12
63 Holden Commodore SS '04 = 1.46.13
64 Ford Falcon XR6 Turbo = 1.46.28
65 Honda Integra Type-S = 1.46.31
66 Audi TT 3.2L DSG = 1.46.35
67 Nissan 200SX = 1.46.40
68 FTP F6 Typhoon = 1.46.46
69 Holden Commodore SS = 1.46.58
70 Subaru Impreza WRX = 1.46.74
71 Volvo S60 R = 1.47.00
72 Mazda MX5 SE = 1.47.00
73 Subaru Liberty GT = 1.47.06
74 Ford Falcon TE50 = 1.47.07
75 Renault Sport Clio Cup = 1.47.16
76 Alfa Romeo 147GTA = 1.47.21
77 VW Golf R32 = 1.47.22
78 Audi S6 = 1.47.25
79 Renault Clio Sport = 1.47.30
80 MG ZT 260 = 1.47.51
81 Renault Sport Megane 225 = 1.47.53
82 Toyota MR2 Spyder 1.47.56
83 Alfa Romeo 156 GTA = 1.47.59
84 Audi S3 = 1.47.63
85 Mini Cooper S Chilli = 1.47.74
86 Mitsubishi Raliant Magna = 1.47.81
87 Mini Cooper S = 1.47.97
88 Holden Astra Sri Turbo = 1.48.14
89 Ford Falcon XR8 1.48.29
90 Merceses SLK230 = 1.48.34
91 Jaguar X-Type Sport 3.0 = 1.48.80
92 Volvo S60 = 1.49.00
93 Mazda MX5 = 1.49.88
94 Mazda6 Luxuy Sports = 1.50.19
95 Mitsubishi Magna VR-X = 1.50.24
96 BMW X5 4.6is = 1.50.68
97 MGF Trophy 160 = 1.50.78
98 Holden Barina Sri = 1.50.85
99 Ford Fairmont Ghia (v8) = 1.51.78
100 Toyota Camry Sportivo = 1.52.44
101 BMW X5 1.52.83
102 Alfa Romeo 147 = 1.52.90

Just goes to show you guys ... a pro driver in an big heavy 4WD like X5 would have given you a very good run for your momey today ;-)

 

[davidm]

And here are the actual times from the day. Here is the list of 'best' times for everyone who attended:

http://www.racetime.com.au/?event=w0503&e=g05&view=fastest

And here you can access all the individual sessions as well as the times for every single lap. Though, they did not list the openning 'practice' session or the very last pasanger session:

http://www.racetime.com.au/?event=w0503

 

[lionking]

Thanks for puttin up the times David.
I wrote a long post yesterday but it was lost before I could post it.

Here's another much shorter version. Had a blast. Killed the back brakes again on the last session. Even though I ws drivin like a grandpa :shiftdrive: I improved times on every session.

On the last passenger session I had the pleasure of goin for a ride with DavidM. Although we weren't allowed to go flat out it was enough to get a feeling for what a 1:40 lap would be like. While I might be capable of another second or two I am certain that I will never be that quick. DavidM is an AWESOME driver and I highly recommend goin for a ride with him if you ever get the chance.

Also, thanks to David for stickin it up .... way up.... I mean WAAAAAAAY up the "smartass wrexy big shot a$$hole wanker dude :jerkit: " in the supersprint. :nutkick: (All the other wrx guys were great :thumbsup: )

 

[db350z]

Yeah i had a great time too. I just watched david Video Clip again and i wish to try using David Gear change by using 2nd gear on corner as i used 3rd gear. But would love to see what time i'll get if i use 2nd gear Next time.

But overall i would like to thanks davidm for such a great advisor and i'm quiet happy to see my improving time. Plus i'm pretty confident i can get a better lap time next time

Btw maybe i'll go out again to Winton on 14th/15th may with MSCA

Winton is a great Track for corner

 

[davidm]

Killed the back brakes again on the last session.

Make sure you get some better compound (ie. not the factory pads) in there when you getting it fixed. I'd replace all 4 of them with something more 'durable' just to be safe, but the rears are definatelly too crap for words. I had a similar problem when I bought the S2000 as the pads in it were totally crap ... stuffer up 2 sets of pads and 1 set of rotors before I figured it out. Though once I put in some 'good' pads the brakes worked like a charm.

Even though I ws drivin like a grandpa I improved times on every session.

By no means did I think that you (or Yun) drove like a gramdpa ... I can speak from 1st hand experience that cracking the 1:50s on your 1st vit there is not easy at all and very few people manage to do it. Low 1:50.5 and 1:53.1 are both very respectable times for 1st timers.

I might be capable of another second or two I am certain that I will never be that quick.

You'd be surprised how much more is in the car (and in you) . I guarantee you that the next time you're there that you'll start in 1:50 - 1:52 range when you're just *****-footing around. I'm confident that you'd get into 1:48s next time you're there and 1:46 - 1:47s are not out of question for you with a bit of practice.

DavidM is an AWESOME driver and I highly recommend goin for a ride with him if you ever get the chance.

Thanks for the compliment ... practice does pay ;-) Also remember that this is my 3rd time there with the Zed.

Also, thanks to David for stickin it up .... way up.... I mean WAAAAAAAY up the "smartass wrexy big shot a$$hole wanker dude " in the supersprint.

hehe. He was a bit of dick ... not sure why as all the guys I know there are very cool. Also 'he' should know better considering that he's an ex-pro driver.

Hey LK, I'm interested to hear what gears you used where with the auto and how did you find it? As you know, I'm not happy with the manual gearing as far as WInton is concerned as the 2nd gear is just too short for me ... and so is 3rd actually. Check the map bellow for cporner names.

I just watched david Video Clip again and i wish to try using David Gear change by using 2nd gear on corner as i used 3rd gear.

You were using the 3rd gear around the gum-tree section right? If so, then that's certainly 2nd gear section. Though, I did leave it in 3rd for one lap with LK in the car and it did not feel too bad as the Zed has plenty of power even in 3rd gear at those speeds (ie. 60 - 90kph).

But would love to see what time i'll get if i use 2nd gear Next time. Btw maybe i'll go out again to Winton on 14th/15th may with MSCA.

I have no doubt that you'll be quicker next time you're there. I think DavidC is going to that one ... no? Now that you know the track you'll be probably showing him how to get aorund ;-)

 

[lionking]

Hey LK, I'm interested to hear what gears you used where with the auto and how did you find it? As you know, I'm not happy with the manual gearing as far as WInton is concerned as the 2nd gear is just too short for me ... and so is 3rd actually. Check the map bellow for cporner names.

Auto action Corner through Hella in - 2nd (near limit)

Ford Credit Sweeper - 3rd

Penrite through Repco - 2nd

Into Dunlop Strait Corner in - 3rd then 2nd on the way out ( 3rd was a bit long on the way out and was hard to get the auto to drop down to second going in because of the high revs - as you know I couldn't manage to get it right without the back coming around on nearly every lap) I think I need to brake harder before going in and do it a bit smoother

All the way around Masport Strait in - 2nd (plenty of revs left)

Main Strait in - 3rd and I'm pretty sure into 4th - can't remember exactly

Motorsport News esses - 3rd

 

[db350z]

here is mine

Shell Straight = 3rd/4th

Auto Action & Hella Cnr = 3rd

Ford credit sweeper = 3rd

Penrite Through Repco = 2nd & 3rd (first couple of round uses)

Dunlop strait corner = 3rd all the way

Masport straight = 3rd

motorsport news esses = downshift from 4th to 3rd

i think i need to change the list next time.

Btw David' As you know i'm using the 19" with SO3. On the next run i wish to try using the stock 18" with stock tyres.

Do you think that is better? As i wouldn't worry aboutl stuffing the wheels

 

[davidm]

Btw David' As you know i'm using the 19" with SO3. On the next run i wish to try using the stock 18" with stock tyres. Do you think that is better? As i wouldn't worry aboutl stuffing the wheels

I'd say it'd be only better in terms of you not having so much to worry about damaging them. I know that you did not slide off this time (none of us did), but you're more likely to scratch/bang them up a bit than the 18" if you left the track sideways ... I can't see you damaging them any other way. On the other hand the 18" would not be so precious and even if you did scratch/bang them, it would not worry you too much. Though, on the same note, my 18" track (and I mean the ones I use on the track) do not have a single scratch/dint on them despite them seeing now about 5 track-days.

In terms of actual speed/grip you will probably be giving up a little bit of grip as you have much wider tyres on the 19", but at the same time I am sure you will not notice that unless you're getting 1:43 - 1:45 times out of the car (at Winton).

Considering that you do have the OME 18" wheels with tyres, I'd be putting them on whenever you go to the track ... that way you're making use of both of them and it will give you that extra bit of confidence.

Yun: Penrite Through Repco = 2nd & 3rd (first couple of round uses)

Even though 3rd does not have a bad pull around here, there's no reason not to be in 2nd as I'm pretty sure you would not be hitting the limiter here. Also in 2nd gear you have so much more control over the balance of the car, whichg is really all you can do here (ie. play with the balance).

Yun: Dunlop strait corner = 3rd all the way

3rd here is certainly too high a gear as this is one of the tightest corners at Winton, and also it is followed by the 2nd longest straight. That means that any extra speed that you can carry onto the Dunlop straight will be hansomely rewarded by the improvelnt in time. Most of the improvement(s) in time will come down to how much speed you can carry out of the corners ... not necessarily through them, or into into them.

So here you want to overshoot the corner slightly, brake a bit harder than you think is necessary, slot it into 2nd and turn in extra tight line which gets you riight on the apex (ie. graze the inside curb) so that you can get on power ASAP and carry the momentum onto the straight.

Yun: Masport straight = 3rd

I did try using the 3rd gear thought these corners on numerous occasions and if you can carry enough speed through the corners it is not too bad and I did not see too much difference in my times. Though, I much prefer using the 2nd gear as I find it much easier to turn onto the apex and also you no longer need to carry so much speed into the corner as you have more acceleration out of the corners in 2nd. So not only does it feel safer in 2nd gear (ie. less entry speed), but I feel that I have more control and better acceleration out of the corner. The corner onto the main straight is crucial in terms of hitting the apex here and getting as much exit speed as possible as it is followed by the longest straight on the track. Much better to sacrifice some entry speed here then fly into it too quickly and then not being able to put the power down soon enough.

Besides these 3 sections you're using the same gears for corners as I do. You'll be surprised how much quicker you can go without actually pushing the car any harder. You just need to improve the lines a bit, brake hard before/into the corner and and hence start getting on the power earlier ... not necesarily harder, just cleaner and earlier. You can do that if you wash-off enough speed into the corners.

LK: Auto action Corner through Hella in - 2nd (near limit)

You might be surprised to hear this, but even when i had the S2000 I used 3rd gear around here. It's not that 2nd was not tall enough, but not having to shift down/up into this section and out of it makes for much cleaner and smooter line. It actually ends up being quicker in 3rd despite it feeling like you have much more power available in 2nd. When you manage to get out to Winton again, try leaving it in 3rd ... it takes you a couple laps to get adjusted to it, but ultimately it feels easier (on you and te car) and is quicker.

Check out this clip on-board my S2000 ... you get to hear the gear-changes well and even get to see the speedo in places so it gives you a good idea oif what's going on. This was on the OME S02s that the car came with (ie. no extra grippy tyres):

on-board S2000 around Winton (10.9Mb)

Heck, since I'm posting S2000 footage, here some small clips of the cars in front getting loose/spinning:

loose S2000 @ Winton (2.3Mb)

IT-R looses it @ Winton (3.2Mb)

ps.
Intersting observation for me was that having a ~80kg pasanger onboard dropped about 1.5sec off my times (maybe even 2sec). Amazing what a difference a bit of weight makes. Going by that one would think that not filling up the 2nd 1/2 of the tank of fuel should be worth good 1/2sec, and running on empty closer to a second.

 

[lionking]

LK: Auto action Corner through Hella in - 2nd (near limit)

You might be surprised to hear this, but even when i had the S2000 I used 3rd gear around here. It's not that 2nd was not tall enough, but not having to shift down/up into this section and out of it makes for much cleaner and smooter line. It actually ends up being quicker in 3rd despite it feeling like you have much more power available in 2nd. When you manage to get out to Winton again, try leaving it in 3rd ... it takes you a couple laps to get adjusted to it, but ultimately it feels easier (on you and te car) and is quicker.

Yeah, I would definately drive it differently now after having a ride with you. Have to remember too that I limit a 109kph in 2nd.


ps.
Intersting observation for me was that having a ~80kg pasanger onboard dropped about 1.5sec off my times (maybe even 2sec). Amazing what a difference a bit of weight makes. Going by that one would think that not filling up the 2nd 1/2 of the tank of fuel should be worth good 1/2sec, and running on empty closer to a second.



I was thinkin the same thing every time I went around Dunlop corner sideways. I've always found the rear comes around very easily when I've got a bit of weight in the back. ie: full tank or even a few bags of groceries. I remember the first time we met and I did a drift around a u-turn you said it was difficult for you to do that with the manual. I wonder if the auto is more prone to throwing out the back under power?

Just removed my rear pads (what's left of them). No wonder they were trashed. My pushbike has bigger pads. GMP is trying to match some Hawks for me. Fingers crossed they can get them. And a really big fingers crossed that the rotors can be machined (for a second time) and I don't have to replace them too.

 

[Iggy_Type_R]

David,

Congrats on the time!!! I am glad you achieved your target... next step: Sub 40s hehehe. Once I get a bit more used to the Z ... watchin out hehehe.

My best time at Winton is 1.47.05 in DC2 Integra Type R... which is about 3 seconds behind what it could do.

To be honest, I am a bit (pleasantly) surprised... I have a Best Motoring video where stock for stock, the S2000 beat the 350Z (although I do know that somehow BM always favours Hondas)... anyway... your time in 350Z is significantly faster than your time in the S2000. Considering that say Ben or Tony would still be at least 3 seconds behind you from memory?

 

[lionking]

Hey David,
re:Hey Dianiel,
Check out the pics in this thread ... that's Richie's EVO8 after he came back from Calder. Look how stuffed his pads, calipers and disks are ... almost made me cry.

http://www.wrx.com.au/forum/viewtopic.php?t=18808&start=30

ps. Have you decided/figured what to do about yours?

FUKC! Ritchie melted down his entire system! :OMG: Must have been some serious friggin heat! :fart2: I don't feel so bad now.

I got onto GMP Racing and they found some Hawks that fit the touring - and they're cheap - about $120. Unfortunately they can't get them in for 3-4 weeks.

Had a chat with Howard at Racebrakes and he said the Hawks are crap anyway and will custom fit some other ones for me for $220 (+machining) on Wednesday. They are roughly the same size as the WRX ones and just need a bit of grinding here and there.

 

[davidm]

Congrats on the time!!! I am glad you achieved your target... next step: Sub 40s

Thanks Iggy, I'm sure 1:39s are possible, I'm just not sure if I can get them out of the car. Though, I do know that none of the laps I did were perfect so I still do have things to work on and improve ... hopefully that'll shave some more time.

My best time at Winton is 1.47.05 in DC2 Integra Type R... which is about 3 seconds behind what it could do.

Is that with the RE540s? I don't think this time is the hall-of-fame (the one you have there is 1:47.70) so I'll put it in. Do you remember when you did this time (ie. who with and when)?

have a Best Motoring video where stock for stock, the S2000 beat the 350Z

I am sure that 'stock for stock' there would be very little between them. Even the Cameron McConville times from PCOTYs have them only 0.9sec appart at Winton (ie. 1:43.18 for the 350Z and 1:44.09 for the S2000). And I always maintained that one could get the strock S2000 into 1:43s ... I think Ben might have managed it but I can't find any proof.

your time in 350Z is significantly faster than your time in the S2000. Considering that say Ben or Tony would still be at least 3 seconds behind you from memory?

Yep, 1:44.7 was my best in the S2000 but that was on road-tyres. Still, I can't see myself making up 4.2sec in the S2000 even on R-spec tyres ... 1:42s is what I would dream about in the S2000 and Tony managed 1:42.5 which is still the S2000 record there. I don't think Ben was any quicker on the R-spec tyres (that is compared to his S02s time).

Anyway, a year ago I was thinking that if I could get my 350Z into 1:42s eventualy, then I'd be extatic .... so bit of a surprise for me as well to see the times I'm getting out of the car.

FUKC! Ritchie melted down his entire system! Must have been some serious friggin heat!

Yeah, that was some serious melting. Though, that's what braking from 220 to 60kph every 70sec or so does ... that's why I'm not too keen on Calder, it's just so hard on the brakes.

Had a chat with Howard at Racebrakes and he said the Hawks are crap anyway

I've never had the Hawks, but I have only heard good things about them. Though, Howard knows his stuff so he should look after you ... he looks after my braking needs and was doing so since my S2000 days.

and will custom fit some other ones for me for $220 (+machining) on Wednesday.

Do you know what pads thhey will be? RB74? Or one of their 'comp' pads?

LK: Have to remember too that I limit a 109kph in 2nd.

Yeah, I know. The S2000 reached 109kph in the 2nd gear as well, but 3rd gear still did better around those corners and the S2000 is not renowned for it's mid-range.

I remember the first time we met and I did a drift around a u-turn you said it was difficult for you to do that with the manual. I wonder if the auto is more prone to throwing out the back under power?

I have been thinking about that recently as well. One thing that the Track has is slightly wider rear tyres so that might make it a bit more difficult to slip them. Though, after 17,000km on my RE040s I find it a lot easier to slide the back around. So maybe it's just down to new vs old(er) tyres as even though the RE040s grip pretty well when new, that grip detiriets prety quickly with wear.

 

[davidm]

While we were at Winton, I borrowed a 'DL1 data-logger' from someone I know. What this does is log precise data like speed, position, acceleration, g-forces, etc at every single point of the track over the whole period of the session. This is done via GSP so therefore is very accurate. By analizing the data you can find out some interesting information like:

- 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.

Following are some of the cool graphs/tables that this data-logger produced. Here's the map with all the sector-points marked so that the following table makes sence:

 

[davidm]

Laptimes from the 1st three timed sessions. 1st one I had a clear run, 2nd one I was behind the Civic Turbo and RX7, and the 3rd one is a clear track but with a passanger on board. You can see the sector times as marked on the map and the highligted ones are the best ones ... as you can see, they are not on a single lap:

 

[davidm]

And finaly here is a 'speed' graph that shows my best 1:40.66 lap (black) plotted against my best 'passanger' lap of 1:42.49 (red). What it shows you is my speed on the Y-axis and time on the X-axis around the whole lap. You can see what speeds that I was doing at any part of the track, the gear-chages as well as the difference that the passanger makes in terms of acceleration:

 

[Iggy_Type_R]

Very cool mate!

Great to see that on a "perfect lap" 1.39 is possible...

 

[lionking]

Had a chat with Howard at Racebrakes and he said the Hawks are crap anyway

I've never had the Hawks, but I have only heard good things about them. Though, Howard knows his stuff so he should look after you ... he looks after my braking needs and was doing so since my S2000 days.

Actually "crap" was more my word than his. He basically told me that he didn't think much of the Hawks for the track. Even the HP Plus ? were more of a street pad.

Anyway I got my rears re-done. $250 to machine the rotors and custom fit some WRX Racebrakes comp2 pads. He recons I had some serious heat in the back. The new pads are also colour/heat sensitive so next time we will get an idea of the exact temperatures. What really surprised me is that I could notice extra stopping power with only new pads in the back.

If anyone wants to upgrade the front on a Touring model they have a complete (I think 4 piston) kit sitting there that someone ordered and didn't buy. Drive away price including braided lines, rotors, calipers, intallation, etc is about $3500.

RaceBrakes in North Melbourne (03) 9326 6088

Hey DavidM, That data-logger is pretty cool. Right up your alley! I think you should go out and do a 1:39 now to make us Sunday drivers look even that much slower. Good stuff dude. :irock:

 

[davidm]

Great to see that on a "perfect lap" 1.39 is possible...

Well, that 1:39 should be possible for 'me' without pushing any harder ... just by stringing a whole lap. I'm sure that a pro in my car would be another 1sec qucker ... maybe even more.

Also for anyone interested here are the top-speeds measured by Motor (via radar-gun) when they had Warren Luff (ie. pro driver) driving the cars for the 2005 PCOTY:

Top Speed at Winton:
Mazda MX5 SE = 153kph
MG ZT 260 = 155kph
Mini Cooper S Chilli = 155kph
Renault Sport Clio Cup = 156kph
Honda Integra Type-S = 158kph
Renault Sport Megane 225 = 159kph
FTP F6 Typhoon = 161kph
Audi TT 3.2L DSG = 161kph
VW Golf R32 = 161kph
Mitsubishi EVO VIII = 166kph
HSV GTO Auto'05 = 167kph
Holden Monaro CV8'05 = 167kph
Holden Commodore SS'05 = 168kph
Lotus Exige '05 (R-spec) = 168kph
Mercedes SLK350 = 168kph
Subaru Impreza WRX Sti '05 (RE070) = 168kph
HSV Clubsport R8 '04 = 168kph
FPV Falcon GT-P = 169kph
HSV Clubsort R8'05 = 173kph
Mercedes C55 AMG = 175kph
BMW M3 CSL (R-spec) = 180kph
Mercedes CL65 AMG = 182kph
Porsche 911 Carrera S = 188kph
Chrisler Viper RT/10 = 188kph

So not too shabby company with my 'true speed' 169kph.

Anyway I got my rears re-done. $250 to machine the rotors and custom fit some WRX Racebrakes comp2 pads. He recons I had some serious heat in the back. The new pads are also colour/heat sensitive so next time we will get an idea of the exact temperatures. What really surprised me is that I could notice extra stopping power with only new pads in the back.

That's excellent news ... you should not have anymore 'melted' brake problems as Comp2 is what I have in the back of the 350Z and also had in the S2000's rear.

That data-logger is pretty cool. Right up your alley!

Yeah, it's a very cool piece of hardware/software. Couple more interesting tid-bits that I learned from my Winton data:
- 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.

 

[davidm]

You guys might be interested in this. Remember the blue STi that was on a trailor at the McDonnalds that we stopped at on the way up? Well it just happens that while at Winton they had a data-logger on board as well and I got my hands on the actual data. With that what I did is plot their best lap of 1:38.34 against my bets 1:40.66 lap ... I even included a map of Winton on top and pointed to the 'appropriate' sections of the track so it's easier to read.

There are 3 graphs here:
- the top one being the 'speed' graph that shows the speed. You can see that this STi has asignificantly more acceleration.
- the middle one shows the time-differential between the 2 cars along the lap. As you can see I was aheads by a few by 10th until the back-straight and then he pulls away strongly and is ahead by over 2sec by the finish-line.
- the bottom graph shows the lateral G-forces.

Oh, and here are some details on the STi - it's a Type-R that is stripped to 1184kg, had around 180kW at the wheels, has custom suspension and is on Yokohama slicks (that are on their last leg). The car was not aligned for Winton and had some brake issues and has returned 1:36 time before.

Anyway, here are the graphs ... I love this data-logger stuff