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djr81

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Everything posted by djr81

  1. If your 2500's are squeeling the solution is simple. Get some temperature into them. Seriously - give the brakes a pasting for a few minutes and they will quieten down for a good period after that. When it happens again a few weeks later repeat the exercise.
  2. The more trackwidth you run at one end relative to the other will help promote grip at that end. In terms of the effect it has on balance I would regard it as being small with the kinds of numbers you are talking about.
  3. Well at 50% more expensive than the Project Mu ones they would want to do something for you.
  4. Last time I checked Endless rotors were not a cheap night out. You may be able to do better, however. Duralium is just a type of aluminium. The hats stand up fine & will outlast the rotors. They are usually anodised. What happens is that it usually works just as cheap to get the whole hat/rotor combination that it is to buy a rotor & the bobbins seperately. If you are interested I have a couple of second hand Project Mu 2 piece rotors for a R32 R in my shed that are for sale.
  5. The project Mu rotors aren't regular pillars in the same sense as the stuff you get from RDA. In terms of how much air they pump the order would be: RDA (ie pillar design). DBA (dogbone design) Project Mu (whatever you may like to call what they fit to the 2 piece rotor) Fully vaned rotors, obviously the more vanes the more air they move, also the heavier they are. There are others - oddball stuff - but in terms of what you may reasonably get locally (or import) the list is pretty much Project Mu, Endless, Biot & APP. Of those an imported Project Mu rotor is probably going to be the cheapest. Having used them they are very good.
  6. Gotta love the interweb. To make things clear. I understand your position(s). I disagree with them. That doesn't make me ignorant.
  7. Is it a 32 or a 33? Your thingo says a 32 but the post a couple previous says 33. Again look to the Nismo rates for the thing. You will see the rates on a 33 are harder.
  8. The other downside of the multitudes of tards is that as a customer it is really difficult to find an importer/compliance shop who CAN dedicate the right amount of time to do a quality job. Razor slim margins & constant whinging from tight arses makes it hard for proper customers to get proper service.
  9. I reckon they are too high for an R32 Gt-R. If you have a look at the rates Nismo recommend you can't go far wrong. For me 5/4 is good 5.5/4.5 is good too. But as I said you need to look at three things in conjunction with this. 1 How well is the ATTESSA system working (eg do you have a controller - if you do you can arguably run a higher rear rate relative to the front.) 2. You need to address the front & rear camber angles. 3. Sway bars are needed too. Good swaybars at that.
  10. Generally a softer spring generates more grip at the end of the car it is fitted to. On the road you don't have the same level of issues typically found on the track with things such as weight transfer etc. So you can get away such low rates. Track cars typically need softer rear springs (relative to front) to help with traction. This is at the price of front grip & is why most track R32 Gt-r's run alot of front end neg camber, stiff rear sway bars & softer front sway bars.
  11. It is a simple argument. The technology, engineering, tolerencing, build quality etc etc of an F1 car is so far outside that required on a road car as to be irrelevent to it. The competition in F1 is so fierce none of the people working there would give a rats arse about road car design. Yes there may be some materials/principles etc that are common. But the sort of CNC machined wotsit made out from the heart of a forging of unobtainium & lifed to last 5 seconds that you find on an F1 car is nowhere near anything ever seen on a road car. The only real influence F1 has on road cars is fashion. Underbody aero became big in F1 in the late 70's. Does stuff take 30 years to filter down?
  12. You hear of them if you follow Ff1. Anyway I would like to know when the following items will be seen on my next road car: 13" rims. Pneumatic valves on the motor. Inconel exhausts. Wooden plank underneath to mess up the aero. F duct. Oh bugger lets go old school: Active suspension what happened to that? Aluminium monocoque chassis - where are they? Sliding skirts. Fuel that makes your eyes water & gives you cancer. Lithium anything. Berillium anything. The linds is endless. The amount of F1 tech that transfers to road cars is almost non existant. Some of the fashion makes the leap across. Don't for instance think that the gearboxes on the race cars have anything in common with anything seen on a road car. It is just fashion. Having said that the new Porkers gearboxes are a good thing. Shame the F1 motors can't do direct injection.
  13. At the risk of be off topic - I just want to say. This thread is awesome. Just awesome.
  14. I disagree with that. What F1 does is define what is fashionable on road cars. It has very little to do with technology. Lets be honest do you reckon Force India give a stuff about what technology is in your next Corolla?
  15. Too many people confuse stiff suspension with good suspension. Stock R32 Gt-R spring rates are front 2.4kg/mm rear 2.7kg/mm Pissing competitions about spring rates & how high they should be are about as useful as those centreing how much rim/tyre you can stuff under a guard. Anyway for what it is worth I run 5kg/mm front, 4 rear. Nismo stuff is half a kg/mm higher at both ends. With the right sway bars that is enough spring for the track on R compounds. It is also a reasonable rate for the road. If ride quality is important to you then I would avoid a rod end castor rod & get something with a decent bush in it.
  16. Sounds like a pretty poor excuse for what was ultimately a pretty poor program. If they want prodution car cred they need to go back to the WRC - but maybe just cheat a bit less this time.
  17. My thing with Webber is that he on occasion does try too hard. Too often he bins the car or spears off when he should be more circumspect. Maybe Melbourne this year is an example of that. Bottom line is I reckon Webber was fed up with the Williams unreliability and saw better opportunities elsewhere. I sort of doubt he would have stayed anyway. BMW wanted to do the whole thing - car, motor etc. Point being is they never bettered what they achieved with Williams. So maybe in retrospect they were a bit misguided about it all. It is hard to judge Sam Michaels work now because you never really know how constrained he is with budgets & personnel. I am guessing it is not all sweetness & light in that area for Williams at the moment. I have my doubts on how good the Cosworth motor is too to be honest.
  18. You are going to have to point out the funny bit. What Williams/head have said is A: Spot on in terms of Webber throwing the car at the scenery in races (prior to this year anyway). B: Doubtless accurate in the sense that having lost a major sponsor they couldn't afford to pay a big salary as it would have reduced the money available to spend on the car. Reality is not every team has either a car company to prop it up (eg Ferrari & FIAT) or a wealthy owner (eg Red Bull, Force India). Williams is one of the very few teams that don't have either. Economic conditions at the moment makes it very, very hard for them. A circumstance which is, apparently, hilarious.
  19. Who did you buy them from?
  20. The 7 refers to the spring rate in kg/mm. The 69 refers to the spring rate in Newtons per mm. 1kg=9.81 Newtons. With those spring rates the Whiteline bars will struggle to have an influence. Added to which they are heavy because they are solid, ie rod rather than tube.
  21. Why don't you remove the bracket the ABS sat on. The black thing in the lower middle of the photo. From memory it does nothing else but hold the 5kg or so of ABS system.
  22. Sorry Troy I wasn't trying to suggest they did. The homologation R32 GT-R's (aka Nismo version) had steel turbos. Ages ago I read an article in I think HPI (Maybe Zoom before it got boring) where they published a compressor map of the Group A turbo. Whether or not this was what was on Freddo's cars is a different issue as I thought Group A turbo construction other than meeting some relevent dimensions was a "free" area. I was just trying to line up the claimed Group A cars horsepower number with an 89 shitter R32 still running ceramic turbos. Also I think there were some ex Gibson cams doing the rounds on SAU some time back. The lift/duration numbers were pretty big. Yeah Gary Rogers ran all sorts of 2 litre nonsense. An Alfa, the Nissan. Nothing much else comes to mind but there may have been a third make. Also fwiw I think the sprint engines ran stock rods & the endurance versions ran Carillo's. Can anyone confirm/deny this?
  23. Again from memory it was: 0: 2WD start 1: Normal running 2: P!ssing down raining ie torque forward. I just sort of got the impression (Maybe wrongly) that for a given setting the torque bias was fixed.
  24. From memory (A dodgy one at that) the original number was about 600hp. Then it reduced to something like 480 when the boost retrictions were put in place. But hell you can get near on 400 horepower out of a stock RB26 on pump fuel with stock ceramic turbos - hence my scepticism. Also: Sort of reading between the lines I formed the impression that the GMS cars didn't use the ATTESSA system much and bascially ran (after the start line 2WD mode) in fixed 4WD, rather than varying the torque split. You will note on the old videos the commentators banging on about the GT-R starts which did appear to be better than the other cars - something that is hard to reconcile with a 2WD start. All turbo cars were outlawed at the end of 1992. Basically Group A was a dead category and it needed replacing. They went to V8's (Although the BMW's were still ok for 1993) hence no turbos. To say the GT-R were banned is just a bit of Nissan merketing hype, really. DTM = German Touring Car Championship. Super Touring = Two Litre atmo cars. (Nissan ran a thing called a Primera? in England & I think Steve Richards was their test driver for a while. Can't remember if Gary Rodgers ran one over here, though.) Super GT = Japanese formula. So, no. No R33's ran at any high level sport circuit sport in Australia - well none that I can remember anyway.
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