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  1. Talk me into a centrifugal

    I’m the OP and I havent purchased anything yet
  2. What should I do next to get rid of the "unsettled" rear suspension?

    I knew this thread was going downhill as soon as the OP mentioned rear suspension. So everyone who ever spent a dime on a rear brace or alignment dowel shows up and says you have to do all that. My 2c was that I got zero NVH from the LRCA bearing and toe bearing. If you do those last after 5...
  3. How come the s550 tramlines so bad?

    You wont see anything obvious for the type of toe issues I suspect, the car may just be too darty.
  4. Talk me into a centrifugal

    Ah good point about the pully! TY I was thinking about my conservative top end goals and not considering setting a pully size for good low RPM boost. Yes I'd get a fuel system if my goals require a fuel system. Chances are I'll be messing around with surge tanks anyway (fuel starvation...
  5. Talk me into a centrifugal

    Cause I cant make a decision and I’ve never owned a car with a centri. Plus I value your opinion on what to do with my money on my own car which only I will drive
  6. Talk me into a centrifugal

    Hey, I can safely say that very few people kick my ass at autocross. I beat Shotz's ZL1 1LE (whipple) Optima car in 2022 at Nationals and took the W right out from under him. Last year I did loose to Shotz's fully built SS 1LE, Otis's ZL1 1LE (who is local to me and usually spanks everyone -...
  7. Talk me into a centrifugal

    $26,500 for a Aluminator XS 5.2. Looks god tier though.
  8. Talk me into a centrifugal

    Good man Yeah I see that they dont have lag, they’re just weaker at low RPM. Im my case (autocross), I’ll be in 2nd gear at whatever RPM the course allows, and if I’m getting on the power its probably digging out of a 35mph corner to accelerate up to 70mph before hitting the brakes for the...
  9. Talk me into a centrifugal

    Car is 40% street, 50% autocross, and 10% track. I have to rebuild (or part out) this Gen2 motor, so I need to decide on boost and choose a 9.5:1 compression motor or a 12:1 NA optimized motor. I've had great results with this as an NA build, but I want more power/torque, and for reasons I...
  10. SCCA CAM-C Thread

    The Speed Italia splitter mount looks great. Sorting the mounts out on a custom splitter IS the hardest part. You need to decide if you're going to run the splitter all the time on the street or just to and from events. Its possible to make a pretty painless QD mounting system IF you can...
  11. SCCA CAM-C Thread

    The splitter does take a while. I started my first one late into a xmas holiday break and I think that took about a month. Version 2 and It took just as long, but I'm much happier with the result. Better choices for materials and my woodworking improved a lot for V2. My lexan spoiler was nice...
  12. How do you clean under the hood? Isn’t there wiring under there that can’t get wet ?

    I've only recently started to clean engine bays on my vehicles, but yeah the engine can get properly wet and its fine. Most of the connectors and wiring looms are decently protected against water. The engine bay isn't sealed off to water at all, plenty can get in through the grill and...
  13. Trunk weather stripping. Normal or?

    Ringworm can be cured by 2-4 week course of an antifungal cream.
  14. Tow hook

    Have a ZL1 front and rear hook on mine and I had to use it to get the car on a trailer on Saturday :facepalm:
  15. Ohlins Coilovers and Wide Front Wheels

    I have 19x10” P6GR Seven street wheels so you obviously have great tastes, but 8 year old NT05s are probably ice skates. You’re not putting enough hard miles on the car per year to properly wear out low treatwear summer tires like those, so avoid any of the hot 200TW and drag radials. They’ll...
  16. Motor seized - what would you put in?

    Yeah it died doing what it loved. Put down a good run with power but was rod knocking as we exited the finish chute. I'll take the 5th. Any trophy finish in the Spokes X class feels like a win. Looks like I might get to codrive a 911 next event, which will be fun. I appreciate the advice...
  17. Trunk Floor Velcro: The Ultimate AutoX and Track Day Innovation of 2024.

    I had a problem with the carpet trim panel just forward of that removable piece which I fixed with velcro. But that thing still gets removed for events. Its a loose item and we dont need none of those. One time I left an entire floor jack in the wheel well and went for a lap. Won’t make that...
  18. Cobalt Filly Aero Improvements… Thoughts on Fog Light Area?

    If you're running wider than 255 tires, those air curtain holes aren't helping, but they're going to be pretty minor. Why do we think 232° is too hot for the cylinder head temp? I mean cylinder heads are supposed to be hot. IMHO that's probably within the design parameters of the engine. I read...
  19. Ohlins Coilovers and Wide Front Wheels

    You’re picking up the right takeways. You've done so much to make the handling sharp with all of those bearings, it would b a shame to put a wide tire on a too narrow wheel (which makes the handling feel more squirmy, and wastes a little bit of the tire contact patch). You've sharpened up the...
  20. Ohlins Coilovers and Wide Front Wheels

    I cant figure out why 2/3rds of those options have a tire slightly too wide for the wheel. I’ll come back and first answer your question. No, if you arent chasing time, a 305 and the offsets to run them arent needed on a street car. The tires generally cost more and they tramline more on...


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