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tube80z last won the day on March 8 2014

tube80z had the most liked content!

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About tube80z

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  1. Tim's 302Z

    One thing I might suggest. If you look at a new car and compare the chassis to the Z you'll find a connection from the rocker to the frame well in the front wheel well. This is the same area that saw a lot of work in the B&W pictures you linked to previously. And on our race cars we often put tubing into the rockers to make the floor stronger. At the front wheel end this was connected to the TC box. Very similar to some of the photos you have shared. Props to all the work to save this one. At some point these cars will be rare enough this will be commonplace. I'm glad I live where they don't salt roads. Hope this helps, Cary
  2. aviation fuel mix with gasoline?

    Did you notice this is a ten year old thread?
  3. That could easily be solved with using an oversize bung and adjuster added so you can change length on the car. I never bothered with my set as they were made in a jig matched to the arms that came off the car.
  4. Rather than weld the mustache bar to the drop links you can make a new setup that's one piece and bolts in. Here's some pics of what I'd do for the inner frame. While this does use a mustache bar I'd replace that with tubing that connected to the uprights out to the mustache bar outer mounts. Then some simple triangulation would make it very stiff. Rather than use the H style control arm I'd move to one of the toe-link style arms that have been built by a number of people. In case you're curious these are the rear suspension pics from John Thomas' national championship winning FP car. Hope you find them inspirational, Cary
  5. 240Z Pro-Touring Build

    My advice, from screwing up this a number of times, is to get the engine and tranny last. You never know how long it will take to complete these projects and what looked awesome now may be a lot less awesome in years to come. Not to mention potentially cheaper. Cary
  6. A friend who runs a EP car used the CFR 4 bolt variety and there wasn't any problem. They broke one too and then changed to the CFR part. I put one of them in and they looked nice and used good hardware for the studs. Cary
  7. ABS in a 240Z?

    Sounds like you're well down the road with the Teves unit then. I'll be curious to see how that works with slicks. I was going to suggest another option is the Ford FR500 unit that is programmed for slicks. Install is very similar but Ford motorsport has a much cheaper harness option. Cary
  8. Base model 280zx project

    Yeah, photobucket seems to have screwed almost all the car threads and other forums I view. It's understandable but it would have been nice if there was an easy way to migrate but then they couldn't hold people's pictures hostage.
  9. Pikes Peaks 2016

    I know we all like to fly the Z flag but if you do have to start over a newer platform could be a better move. Not only suspension is better but you get a stiffer chassis often and much better aero. Sure you can get there with a Z but you're going to need to do a lot of work rebuilding much of the car. So my vote from a racing results standpoint would be to look at some other platforms. Cary
  10. Pikes Peaks 2016

    Holy fill your pants you're not kidding. Time for a flat floor conversion? Or do you think everything else is too tweaked? Just happy you're not hurt.
  11. Pikes Peaks 2016

    Bummer for sure. Glad all the work you put into safety was worth it but too bad it had to get used. From the video it almost looked like the road had a drop going into the corner and compression braking was enough to lose the rear end. And on a hill there's rarely any room for run off. Cary
  12. Button clutches and recommendations or experience

    Their online material (http://www.powertraintech.com/Files/PDFs/Clutch%20Facts.pdf) states 400 TQ per disk. So you may want to verify. That sounds like it might be an okay way to go. My limited experience is that you raise the revs and do a couple quick dips to get the car rolling and then fully engage (pit driving). I think as long as you use the button and the stock flexplate it will be a little better. Mine is a button and ring gear that's mounted to the clutch cover. This is using a low ground clearance bellhousing and reverse starter. If you're planning to ebay a cheap cover I'd go with a Tilton as they had hardened pads for the disks to touch. I have a quartermaster cover and they are just hard anodized from the look of it. As to how loud they are it's fairly obnoxious when in neutral. It sounds like something is broken or about to fall off. Many of the street dual disk systems employ some kind of strapping between the disks to keep them from rattling back and forth. Cary
  13. I get the motion ratio changed but if you're using a stock arm and everything connects in the same place up top then you're not changing the geometry. And it's the geometry that determines the camber curve. It works the same way up front. Cary
  14. Button clutches and recommendations or experience

    You mention using this on the street. The clutch you mention is similar to a rally clutch where a 3 disc race setup is stacked up the same using two thicker cerametallic discs, which allows for more slip. This setup isn't as grabby but still is fairly violent on take up. And when in neutral they are loud with the discs banging about. If you plan on having good launches you're going to need more weight than the traditional button allows. This is streetable but doesn't have the best manners and you need to make sure you don't slip it too much. A number of friends are running these in CP autox cars and an LS2 powered XP RX-7. In the RX-7 it doesn't seem too hard to take off and not kill it but you need to raise the revs and be fairly quick on engagement. Jon Mortensen uses one in his XP car too if you want more of data points. I don't think you can go any smaller than 7.25 and still drive on the street. The smaller options don't have enough heat capacity. Although I know you didn't ask that. Hope that helps, Cary
  15. Is this site dead?

    I think you'll find the many things have been figured out over the years so some content areas don't see much new content. That can all change based on new donors cars being available or someone willing to push the ball a little further up hill. Cary