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    Rose-joint alignment

    A question to some of our more knowledgeable race car engineers. I had the opportunity to look closely at the front suspension of a V8 Supercar (local touring car) and noticed something very interesting. All rose-joints were mounted horizontally (with mounting-bolts vertical rather than...
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    Help for those RF40 owners at the build stage

    I thought that it might be worthwhile starting a proactive thread that could be used to assist those owners of incomplete RF kits. I expect that many of these owners bought their kits in the knowledge that RF had a very good reputation for after-sales support and to some degree relied on this...
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    Handling or acceleration?

    I’m just wondering what holds most appeal to GT40 owners. For the pure joy of driving, is it the feel of straight line acceleration or is it the handling through winding roads? If you were now going to take the next step in improving your GT40, would you spend the money on the chassis or the...
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    Peak Oil

    Earlier this week the science-news program Catalyst on the ABC (Australian Broadcasting Corporation) presented a very interesting story on Peak Oil. This was a term that I had never heard before, but apparently there is a debate raging on at the moment as to when our oil supplies are likely to...
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    Engine cutting out

    I’m experiencing some very strange problems with my engine at the moment and hoping someone could help me figure it out. The engine is basically a standard RF40 setup ie 5.0w engine with a Motec M800 and all electronic setup (with coil packs etc). The symptoms are… 1) The car will start and...
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    Any tricks for reducing exhaust note?

    Just wondering if anyone knows of any simple tricks that I could use to temporarily reduce the sound of the exhaust while the car is being tuned in the garage? I live in a quiet residential area and feel reluctant to do any lengthy engine work in case I overstep the good will of my neigbours. A...
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    Brake pad replacement

    Can somebody please jolt my memory as to how to get the front brake pads out of the PBR calipers? I know that you remove something and the caliper then pivots away from the rotor, but what do you remove and which direction does it pivot? Its been nearly 4 years since I fitted these things...
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    Brake bias valve

    I am assuming that screwing inwards adjusts the brake bias toward the front. Can someone confirm this please? Also, has anyone tried to fine tune the bias of the brakes? If so, what have you found to be the best setting. Also, how much effect on the bias does, say, a full turn have? I...
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    2D Puzzle

    OK so ya recon you got the right stuff to be able to figure out what bit goes where so that it all fits correctly? This will test you. 2D Puzzle I managed a score of 890 before I figured I had better things to do with my time
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    Roll bar and Race Harness

    I'm in the process of fitting an RF Roll bar into my car and just about to drill the holes. However, I understand that there are a number of variations to the way a safety harness would be attached to it. Does anyone have any pictures of the way they did it? My preference is to loop it around...
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    Ford V12 Engine?

    Just being a bit mischievous here but I have just read an article on the new Aston Martin DB9 Volante V12.. 0-100kmh in less than 5 seconds in a car that weighs in at 50% more than a GT40. Aston Martin being a part of the Ford group of companies I just couldn’t help but think of the...
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    Business is booming for Roaring Forties

    ... according to a half-page article that appeared in the Auto section of the local Herald-Sun newspaper today (Friday 25th June 2005). Lots of positives about the health of the company with a very interesting quote from Robert Logan… “We have three cars in the pipeline. They include the Porche...
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    A theory about running without air cleaners.

    When I assembled my engine, I made a conscious decision to use trumpets without air cleaners. There was no major academic argument behind my decision. I simply liked the look, the sound and the potential extra ponies. The drawback of coarse is that there is no protection against any solid...
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    Inlet manifold on a Windsor 302

    I've been told that it is imperative that I make an effort to fit the inlet manifold squarely on the heads to ensure that the coolant-jackets seal correctly. However, my first attempt at fitting the manifold resulted in a little coolant leaking onto the bell housing and my second attempt I think...
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    Oil in Audi 016 transaxle

    Can anyone tell me how much oil I need to put into the Audi 016 transaxle with LSD? The rule I've used in the past with gear boxes is to fill until it overflows from the side plug. Is this the case here too? Thanks in advance
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    V8 Supercar Chamionship ends

    Well another season of the V8 Supercar championship ends here in Australia and we go back to wondering what to watch on the box through the holiday period. There’s always that game of cricket I suppose, but I find it most useful when I’m suffering insomnia, and then there is that Sydney to...
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    MoTec Engine Management

    I have this idea that I’d like to delve further into my engine management system. Initially I would just do some diagnostics and later as I begin to understand its detail, actually build my own maps. This is a new area for me so I’d like to avoid re-inventing the wheel. Does anyone have any...
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    Roaring Forties centre page spread in the Herald-Sun

    Melbourne’s biggest selling newspaper, The Herald-Sun, featured Roaring Forties in yesterday’s (Friday) auto section. The article speaks for itself, but the position of the article as the centre-page spread speaks volumes in itself. PS. My apologies for the quality of the images. Given that the...
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    Balancing multiple throttle bodies

    How do all you home mechanics keep your multiple throttle-bodies balanced? A friend suggested the VacuumMate but its cost probably makes it difficult to justify for home use. Apparently with a bit of practice though, you can use it to balance eight throttle-bodies very accurately within a few...
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    1034 at Historic Winton last Weekend

    Historic Winton Weekend is always a great day out, but always better when there is a GT40 involved. In this case it was 1034, and it wasn't just a demo run. The driver was punting this this really seriously.
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