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JMortensen

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JMortensen last won the day on July 28

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  1. Wow. Those cantilevers are giving up some weight. Must be the sidewalls. I guess they're 19 or 20 lbs. The FA rears are 13.75 x 24.5 x 15, only weigh 23 lbs, and they're 100mm wider and 1.5" larger diameter. The FA fronts are 9.4 tread width and 17 lbs. Wheels are a lot heavier though. The steel wheels I'm running are 24 lbs IIRC, so 47 for each corner. Could probably get that down 10 lbs if I spent a whole bunch of money on wheels. I kinda like the steelies though. Shows how low dollar the build is, like the stained plywood splitter...
  2. Square handles better. Z's understeer out of the box. Putting smaller tires on the front makes it worse.
  3. Cantilever slicks are weird, the sidewall folds over on itself and so the tires are much wider than the wheels. They look the opposite of stretched tires (see below). I haven't run them myself, but I'm pretty sure you can only get them in bias ply and they need very little camber. I did run 10" radial slicks on an 8" wheel, they were floppy in slaloms but still faster than street tires. zredbaron has 245s on 16x8s A7s and they are definitely pinched onto the wheels but they work pretty well, not nearly as floppy as my slicks were. Hoosier will tell you that the tread should be .5 or 1" narrower than the rim width, FWIW. If you are buying wheels, you should follow that guideline. If you already have wheels, sometimes you have to run what you have. Worse things have happened. By way of comparison, my Konig Rennsport 17x8s are 17 lbs and mounted with a racy 200TW tire it is 39 lbs. Slicks are built lighter but ~40 lbs for reasonably priced wheels and tires in a 225/45/17 is not bad, IMO.
  4. 225/45/17s are the same diameter as 225/40/18. I switched from 18s to 17s for ride quality and wheel/tire weight on my GTI. Lost 15 lbs PER WHEEL going from 18s and Pilot Sport all season 550 TWs to Konigs and Conti Extreme Contact Force. Obviously you can get higher quality wheels and all of that, but if you're not going super wide on the wheels there's quite a few tires available in 17s.
  5. I bent the 240 pedal a bit so my throttle cable went through the firewall opening correctly. Your's looks like a 280 pedal, much thicker metal. I wouldn't be afraid to bend it. If the stop and cable are adjusted, it should only ever be fighting the spring tension on the throttle body.
  6. Try an older 911, they're ridiculous enough that they sell gas pedal extensions and blocks to make it easier to heel toe. I like your solution, though the spacer looks thin. Just make sure after you install that you're getting full throttle and not overextending the cable. Will probably need to adjust the stop.
  7. The MR2 struts will still see friction at the piston and upper strut bushing. Don't imagine it will be a problem to run them without oil since they won't be doing anything other than taking the side loads from the struts and you've eliminated all the heat from them actually damping. Very cool idea.
  8. KW is supposed to be top notch. Dude's background music is super annoying.
  9. Seems like it should do the same thing. IIRC the adjustable slave has about 1" of threaded section. Couldn't tell you how much of that is unusably short, I seem to remember running around the middle of the adjustment. Could probably get a longer bolt and cut and make a new pin if necessary. EDIT-at some point the angle on the fork is going to be bad and that might cause wear...
  10. What thickness polycarbonate? I think most of the sanctioning bodies require 1/4" for front, but you can use whatever you like on sides and rear (most use 1/8).
  11. One way limits slip on accel (common for FWD). 1.5 way limits some on decel, more on accel. 2 way does both accel and decel equally. FWIW, a limited slip doesn't "lock" but a locker does. That means even if you lift one tire off the ground, the tire on the ground will still get power. A limited slip limits, unload a tire and it will spin. High end 1.5 ways are adjustable by changing the ramp angles on the cross pin shaft. If you do sim racing you can see adjustments for percentage lock under accel and decel, that's adjusting the slip for each. Here is a screen from Assetto Corsa. This fully adjustable limited slip is set up basically like a 2 way. Should probably back off that decel a bit, but it's fairly stable under braking. 2 ways are nice for drifters because they tend to make the car loose on corner entry. If I jacked up the power and coast settings the car would act more like a welded rear end. If I lowered them all the way it would be like having no LSD at all. Helicals can be set up to do any of the 3 options, 1, 1.5, or 2 way.
  12. I think you'll have a hard time finding flares built to the precision you'd need to take advantage of that tiny gap from the rivnut being reduced. I only have experience with the zccjdm flares and the MAS flares from back in the day, but neither of those was a super tight fit. Another option is to silicone them on. Saw a video of a guy in Japan doing a RWB 911 and he just used a bead of black silicone to fix the seam, looked good to me, but I don't mind the welting either and just have the flares screwed on with nothing at all to fix the gaps on my own car, so YMMV.
  13. I think you're probably more likely to warp the sheet metal welding than installing rivnuts, and rivnuts can be easily removed if they get messed up or cross threaded. Rivnuts are easier and work great. I'm sure the welded nuts will work, but I just don't see the benefit.
  14. You can also slot or redrill the inner pivot on the crossmember, move the LCA pivot up and this changes bumpsteer and RC.
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