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Everything posted by djr81
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Best Way To Shorter R32 Gtr Diff Ratios?
djr81 replied to djr81's topic in Motorsport Discussion & Builds
Ah ok. Was a bit doubtful about the wisdom of finding a 20 year old diff and then trying to track it. Guessing it is drug money for a new version from Nissan? By the way did it give you a good gain? I am sick of getting hosed by Emos out of tight hairpins etc on hillclimbs and the like. -
I understand the ratios in the GTS4 are shorter and suitable for putting in a GTR. However my question is what is the best way do do this. Scrounge around for a wrecked 4 (Of which I cant imagine there are many), buy new crown wheel and pinion or is there an aftermarket option or different donor vehicle? The rear GTR diff I have has a Nismo LSD in it so obviously I want that to transfer accross.
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Set is 82, gain is 4. Looking at the dyno chart the response is pretty good. 82% is a lot for 16lb.
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Here is an enormously technical drawing of the installed controller. Looks fine to me.
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It is nothing like Ferrari in the early 2000's. Didnt hear the call to have Britney or Homo act as number 2 - they actually let them race which is something Ferrari never dared do. Plus they key equipment (ie the motor) is shared with other teams and Merc dont have the FIA in their pocket changing the rules to suit them every five minutes. Dan put together a complete weekend. Did well in quali, raced well too. Beat his team mate and given the bullshit 10 place penalty he had did well to almost put it on the podium. Very, very good signs.
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Ah ok. Will have a look when I get home. Anyone know why the race wasnt on One last night?
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Tools radio: "Daniel is faster than you." I went to sleep after that. It wasnt going to get any better.
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Valtteri. Bit surprised by how crap the McLarens have been this year.
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Well he has done well to out qualify ze German twice in three rounds and given the way he went wheel to wheel with everyone in Malaysia the signs are looking very promising indeed. Is it to early to urge RedBull to put all their resources behind Dan for the rest of the year and get his team mate to do the support act thing?
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Well yes. Which is why I posed the question "how do I diagnose it".
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1. I dont have one and live handy to approximately no one (Country WA). Other wise a simple replace piece by piece would be the go.2. NFI. 3. Well it is a bit of a saga. Used to work but only at 16lb because that is what I previously wanted to run. Wanted to screw the thing up now but now it turns out it wont build boost. If it is fkd then for exactly how long it has been like that is anyones guess. The thinking was it was the stock actuators that were the problem. Replacing them was supposed to fix any boost spike issues but clearly hasnt.
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Not my work! It is connected now, just working on 16lb, not what I want it to be which is 20+. Is there a way to diagnose a faulty solenoid. Can I force a signal into it and check it for, I dunno, clacking noises.
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It will run to 22 psi or similar (without any finessing) but I want a decent controller. On the assumption it will go to 500 I would be looking for small gains, say 30hp at most. Would not bother if it was too hard/expensive. the last thing I need is something with a Hollywood number and no midrange. Brakes and suspension. Are they important? It is only 500hp after all. But seriously it has had a huge amount of effort put into the handling and the brakes upgraded. Yeah will do. Hoping someone may have had a similar experience and be able to finger, say the solenoids as a common failure mechanism for example.
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Dunno why boost cannot be dialed in. To the best of my understanding it was that the wastegates cannot be kept shut due to insufficient flow through the boost controller. Controller is a blitz dual solenoid type. What does set correctly look like on the actuators?
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Is there an approximate number that -5's can be made to run to - hp & psi? Be happy if the cams are not suspect. Once had Poncams B's. They sucked teh balls off a mange ridden dog. Thing is the power curve is about right when compared to an old, stock motor with much the same specs for bolt on stuff (dyno comparison dodginess aside). Within a few horsepower right along the range.
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Went with your recommendation of Sean. Happy with the tune, just want the rest of the horsepowers.
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Were brand new in box. Now brand new in car.
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Where to now? I have an RB26 in good condition (not long been built), but at only 410rwhp it doesn’t exactly light things up. Has the following: Forged internals. -5 turbros, HKS actuators. Cast iron exhaust manifold, ported. Tomei dumps. Apexi exhaust. 256 degree inlet cam. 252 degree exhaust. Cam gears. 75mm I/C with a hard pipe kit. Stock inlet manifold. Power FC off Z32 AFM’s. Blitz ID III boost controller. Other stuff than means it wont go bang but that dont relate to output. It came back from the tuner with 410 horsepower and a note that they could only get the boost controller to run to 16lb. It apparently made 22 with the wastegates shut but no idea what horsepower. Questions are twofold: On the assumption (perhaps misguided) that it’s the problem where do I go looking to properly diagnose the boost control fault as the shop couldn’t find it (They blamed the wastegate actuators). Once the thing has been wound out to whatever boost it is capable of running I assume it would only be good for short of 500rwhp. So, the question is where do I go looking for more horsepower. The following options come to mind. Replace the twin turbo pipe with something aftermarket which may help a little. Go to a larger inlet cam (Poncam A?) Adjust cam gears for days on end. Dunno. Please note E85 is not a viable option where i am.
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To be fair there have been extended periods when they were both crap.
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Pretty much as per the title. Actually, exactly as per the title. For a GTR so 5x114.3 stud pattern. Ideally would prefer a +15 offset but if you have a +22 that would be ok too. Either two or four. Flick us a pm if you have some for sale.
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Doesnt really matter how well the sensors are calibrated if they drift from that calibration. Sounds very much like that is the problem RedBull are having.
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Bit like chook lotto, really. You can be damn sure if it was Ferrari that had been affected the FIA would already have fixed it in their favour. Like they always have. Actually that is probably the only way it will get sorted - Kimi or Fernando get screwed by it. There again they are so off the pace no one would ever know. As case of too much regulation, too much intervention and too much faith in equipment that is clearly on its limit of performance. There again it is prbably Adrian Neweys packaging that makes it hard. Guessing it is more complicated than ten pipe diameters upstream and four down. Anyway Homo ftw in Malaysia? Odds look good for an MB 1 2 3 4. Homo, Rosberg, Magnussen, Button....
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Well it does because if it was a bullshit number you can understand why they reacted in the way they did. EG: FIA: "We now want you to reduce your fuel flow by 5%" RB: "It was 0.2% on Friday your numbers are clearly rubbish. Get stuffed." FIA: "Resistance is useless" etc etc* * Yes I am likening the FIA to the Vogons.
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So how many % did the FIA say the Red Bull flow meter was out on Sunday? (As opposed to Friday)
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They are all tested then an offset applied (eg its 2% over reading or under reading or whatever) and then used. It is easy to say it should be perfect but nothing in this world ever is.