nathaninwa Posted February 4, 2017 Author Share Posted February 4, 2017 Recently I picked up a 280z to have a driver, so this car is being more straight up race car built instead of dual purpose. I'll still be able to take it down to the local coffee meets and car shows, just not the driver type I was wanting it to be. So it's all about weight this time. 2600 race ready is my goal and with as much power as I have I'm sure I'll be asked for more cage this year! Quote Link to comment Share on other sites More sharing options...
nathaninwa Posted February 5, 2017 Author Share Posted February 5, 2017 Got all this put together today. Caliper ended up perfect after I had to shim the inner bearing out. The hearings are closer together on the gm stuff so the outer bearing was binding on the spindles taper just before getting tight enough. So I found .030 worth of shim for a pinion, this was enough to get proper preload without bearing binding and proper caliper alignment I'm pleased with the results, you can actually feel the weight difference in just spinning the rotor. Quote Link to comment Share on other sites More sharing options...
1969honda Posted February 5, 2017 Share Posted February 5, 2017 That's pretty sweet man. I never would have even thought to look at the GM hubs, looks nice and shiny. Quote Link to comment Share on other sites More sharing options...
nathaninwa Posted April 9, 2017 Author Share Posted April 9, 2017 Well, got this project track ready. Racing begins next weekend with a local 1/8th mile top ten series Borrowed some scales from a friend and all my hard work paid off over the winter. I was rewarde with a 2152lb race car with it 2326 with all safety gear and me in it Quote Link to comment Share on other sites More sharing options...
trackzpeed Posted April 9, 2017 Share Posted April 9, 2017 Looking great. Keep us updated on racing progress. Well done! Quote Link to comment Share on other sites More sharing options...
nathaninwa Posted July 2, 2017 Author Share Posted July 2, 2017 https://youtu.be/jmoMYCe9x7A Finally got back to the 1/4 mile this year after my winter upgrades. Nothing crazy but man the results are impressive This is at PIR in Portland on there street grudge night/test and tune I made 4 passes doing some testing on Wastegate pressures and starting to turn it up Major changes this year are a Glide versus the 80e I had, a2a versus a2w cooler and some random weight savings Setup is still soft on the launch as Portland isn't usually that great with the prep First pass. 4lb spring, 3400 launch. 10.46@145 Second pass. 10lb spring, 3400 launch. 9.76@152 Third pass. 10lb spring in low gear, ramped in 14lbs in high gear, 3400 launch. 9.39@165 Fourth and final pass. 10lb spring ramped to 14psi in low gear, ramped from 14 to 18ish lbs in high gear, raised the two step 4000. Car mustard an 8.86@171.7 And to be honest, like how we all datalog in our heads, it could have taken more power in low gear, and a bit more in the top of high gear. I could feel the car nose over near the finish and it may have taken more two step as well. But I was happy it made a clean pass and it drove on to the trailer! The last pass was a medium soft, 1.5x sixty foot with a 5.9x@131 1/8th mile time. The car picked up 40mph on the back half! Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted July 3, 2017 Share Posted July 3, 2017 Just amazing! Quote Link to comment Share on other sites More sharing options...
trackzpeed Posted July 3, 2017 Share Posted July 3, 2017 Very impressive! Quote Link to comment Share on other sites More sharing options...
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