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By TurboTapin · Posted
Turbomachinery engineers. They're just mechanical engineers who generally studied in universities focused on oil and gas, aviation or that had a formula SAE competition team. We have an entire team of them in our engineering department... they geek out over data and performance testing. I worked with them a lot when we developed an anti surge system for centrifugal compressors ran by electrical motors (~20 000-50 000HP) to avoid surging on accidental power loss. They laugh when I mention automotive turbochargers.... it seems they're lightyear's behind in technology due to poor funding. If you think formula 1 spends a lot of money, a single turbine/centrifugal compressor package in my line of work including the balance of plant equipment generally ranges in the 150-250Million range depending on size. -
The diff brace did not increase NVR at all. And yea the whole reason I thought getting the rear diff brace was a no brainer was because of the reduction in wearing the bushings out + wheel hop. It's a cheap mod for a big cost mitigation in the long run. I bought it for $99 USD + shipping. In regards to the sway bar - i had some over/understeer going on but i just checked my tires and they are pretty worn out. I wont be changing them til july since i'm away for work for a month or so. will sort it when i get back and do more testing. But its definitely still a big thumbs up from me given how planted the car feels now and me being able to go around corners quicker. Still puzzling to me why they never put a LSD into these cars....even the 400z. I saw this mob selling LSD kits for a decent price though it's a little more involved on your part to get it installed: https://www.tractionconcepts.com/Infiniti-Q60-R190-Limited-Slip-LSD-Rear-Conversion-p/tcxin9240.htm -
Great for thrashing on the track - particularly if it is all corners. Otherwise, it is a recipe for massive tyre wear and reduced straight line traction. -1 is plenty for a streeter. -
There are other MAP tapping ports. There's one that runs to the boost gauge MAP sensor on the firewall (over in the corner behind the brake booster). Start at that sensor and follow the hose to the plenum.
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Japanese circuits have always looked tight to me on Youtube vids. They seem to be able to fit tracks into the smallest of spots. I've never experimented with camber in the rear. I'm running similar front camber to you (albeit in the E90) but I've been looking into what options I have in the rear. -3 rear seems like a lot. Yeah, mine is the N54. I had an N52 330i for about 7 years, it was awesome but I just needed a little more poke. The N54 is also DI. I'm running BC coilovers with the M3 front arms and a Whiteline front sway bar and the turn in and ride quality is brilliant. But I do still suffer from a bit of roll so I've been looking into that lately.
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