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Everything posted by djr81
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Fg Falcon Xr6 Turbo - Quickest Aussie Built Car
djr81 replied to Flynnn's topic in General Automotive Discussion
Is it just me or does every photo of the new Falcon look like it has a really skinny trackwidth? GT-R times will be much quicker than the Falcon. -
F1 Drivers.. Past, Present And Future
djr81 replied to m3gtr's topic in Motorsport Discussion & Builds
He was, irrefutably, the man. Well before he got chucked in jail for assault anyway. Sato: Learned all ne knows from Andrea De Cesaris. Michael Andretti: Just because he has a famous name doesn't mean... Perry McCarthy: The Stig never quite made it in F1. -
Are You Cracking Dba Rotors?
djr81 replied to Roy's topic in Suspension, braking, tyres and drivetrain
Ant, Went the fully sik 2 piece option. There are some photos - some of the rotors & some for the toe fetishists. -
F1 Drivers.. Past, Present And Future
djr81 replied to m3gtr's topic in Motorsport Discussion & Builds
Jackie Stewart - so who is the certifiable halfwit now, Max? Olivier Grouillard - great hair, but no one remembers who the fk he was. Nelson Piquet - say it like Murray Walker would - then you will understand. Alain Prost - he once had his hair permed. -
F1 Drivers.. Past, Present And Future
djr81 replied to m3gtr's topic in Motorsport Discussion & Builds
LOL Emerson Fittipaldi. Fkn awesome sideburns. -
Back in the day, before the bird was invented the universal signal for "up yours" was infact something that looked pretty similar to a thumbs up signal. Last time I was it used was by Jim Richards at Bathurst.
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Hmm, I vaguely remember Barry Sheene giving someone a two fingered salute when he was on his motorbike.
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No but it is most days that you can see F1 drivers behaving like the PR trained automatons I suspect most of them to be. Alteast Kimi breaks that particular mould, albeit in a peculiarly Finnish way. I am not sure carrying on like a pork chop in a car means very much either. Look at Nigel Mansells countless brain explosions & compare that to someone like Lauda or Prost. There again Niki had his share of brain explosions - like telling Bernie mid season he had had enough of driving. So Bernie signed some random called Nelson Piquet so I guess things worked out ok.
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Good call, but it is hard to tell as he never says anything. I think your call on this years championship may be a little early, however.
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Are You Cracking Dba Rotors?
djr81 replied to Roy's topic in Suspension, braking, tyres and drivetrain
Imported them via the usual suspects. I would recommend the more verdant of the alternatives...... -
Not sure how one person doing something wrong justifies someone else doing something wrong. All of the great drivers were (are, will be) in no particular order, pushy, selfish, self obsessed, will push the rules to breaking point, will intimidate opponents & ultimately will (like most people) attempt to justify their behaviour simply because it aligns with their own self interest. Think of the recent "nice bloke" F1 drivers: Zanardi, Berger, Patrese, De Angelis, Johnny Herbert, David Coulthard... Not a champion amongst them. Although Zanardi is a champion for many, many other reasons. If you think back through all the champions for the last 50 or so years how many would you classify as nice blokes? None of this justifies parking your car on the circuit to stop others out qualifying you anymore than it does running into other people. Although I would say that Senna's actions were much less cold & calculated than Schumachers. Or are we talking about Schumacher running into Hill and/or Villeneuve? From memory the Senns/Prost thing (the mk 2 version, ie the one that was Senna's fault, not Prosts) was with Senna in a McLaren & Prost in a Ferrari. But I could be mistaken.
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Shame that. Anyway the general trend is the more tyre grip you have the higher the spring & sway bar rates you need to run. So if you are stuck being half pregnant IMHO that is more reason to run the lower rate spring.
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Um, well I never claimed to be the font of all knowledge on the subject. Just that the bloke asked what people were running. So I thought I would share. I'm sorry if I confused my opinion with one that had some validity. But I have gone throught the exercise of setting my GT-R up to work on a track on R compounds.
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I am basing it on the spring rates I run in my GT-R. Some people prefer harder spings, some softer. It depends on what track you run on also. As an example Phillip Island would be different to say Winton.
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Suspension Set Up On A Gtr
djr81 replied to Turbz_13's topic in Suspension, braking, tyres and drivetrain
The front and rear have completely different issues. On the front you chuck as much -ve camber on it as you can find/stomach. On the rear, when you lower the car you end up with too much -ve camber. The kits Gary sells (& others) move the pivot points of the upper rear link outwards which fixes the excessive -ve camber. Good ride heights are 355 front, 345 rear. The Whiteline/Red ranger/Noltec gear is all good. Don't buy adjustable upper arms if you can help it. You can find all this and more in the suspension section. -
Ok a few things: 1. Using RT615's is like trying to get a bit pregnant. Either buy some proper R compounds or don't. Re55's are the most popular on GT-R's due to their grip & pricing in the appropriate sizes. 2. Don't forget to include sway bars & a camber/castor fit in amongst the springs. 3. 8/6 is more than stiff enough. 12/10 is plain silly.
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Photos of the sprint event.
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Using An R32 Gtr Gearbox In A Rwd Application.
djr81 replied to GKTECH's topic in Suspension, braking, tyres and drivetrain
The oil pump is only there to clamp the wet clutch for the 4WD system. So the short answer is bin it. transfer_case.PDF -
Are You Cracking Dba Rotors?
djr81 replied to Roy's topic in Suspension, braking, tyres and drivetrain
I found them (2 piece project Mu's) to be good. But I have only used them at Collie & the short course at Wanneroo so far. Just haven't got to the long course with the new rotors. You should get much more than a year out of a set of rotors. There is a photo of the car on the shourt course - so the things get plenty hot enough. Thing to note with the project mu stuff is that different rotors have different amounts of vanes in them. See the photo -
Are You Cracking Dba Rotors?
djr81 replied to Roy's topic in Suspension, braking, tyres and drivetrain
Justa quick aside: One of the best ways of moving more air is to get a larger diameter rotor..... -
Are You Cracking Dba Rotors?
djr81 replied to Roy's topic in Suspension, braking, tyres and drivetrain
Well that is some good news. The Stoptech gear certainly move some air through the rotors. Not exactly light weight, however. But the big question is: How much? The one disappointment of the Priject Mu 2 piece was the lack of proper vanes, although they are better in that regard that the DBA gear. -
Are You Cracking Dba Rotors?
djr81 replied to Roy's topic in Suspension, braking, tyres and drivetrain
Well to be perfectly honest for the amount of messing about & the cost - why don't you just import some Project Mu rotors & be done with it? As has been said it is not believed to be a metallurgical problem moreso a problem derived from the use of the small return slots around the outer circumference of the rotor. -
Well don't be looking to the FIA for leadership or for fairness or accountability. Any tips for the weekends race? McLaren to come good? Williams to come good? Massa to come good?
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Doesn't he just call for him to resign on a weekly basis anyway?
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Brembo F50 Piston Sizes
djr81 replied to Scooby's topic in Suspension, braking, tyres and drivetrain
No the rears aren't changing, but they cannot be ignored. The front volume is (per side) 5300mm2 (For the sake of the argument). The rear volume is about half that at 2500mm2 (again for the sake of the argument). So the brake pedal has to displace 7800mm2 of piston area per side prior to any calliper being changed. If you add 250mm2 of area to the front the brake pedal has to displace 8050mm2 of piston area. So the difference is then something like 3% as opposed to 4% or whatever the difference is for just the front callipers. So in terms of pedal travel it is less significant than just looking at the front callipers. In terms of bias most manufacturers (eg AP, Endless) appear to offer callipers with smaller piston areas & bigger rotors. To keep the bias constant.