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I spent a lot of Mid-Ohio weekend running for my life with probably the slowest car on track operating at full power. Post weekend maintenance discovered severe front brake pad drag that I've likely had around for multiple weekends, like wheel only free spins half a rotation, but it's nice to identify at least one culprit of straight line handling being off. That's currently being resolved along with front bumper air dam/undertray revisions and removing the roof scoop (RIP). Road America coming up in a few weeks and hoping to punch a little higher despite being a terrible lightweight/low power track. Overall felt fantastic about my driving at Mid-Ohio, braking much improved and starting to put things together that I know from a couple decades worth of sim racing at a high level, just gotta keep connecting dots and let the hyper nerd lizard brain take over.
As far as actual updates, stayed busy over the weekend building new undertray/air dam setup. I moved the center cables a bit more outboard on the undertray as they were gonna get in the way of ducting, but this is pretty much the setup for now. The undertray is now only 2" off the ground (ie it should actually work) vs the KBD bumpe as-is which sits a solid 5" or so off the ground. That's a lot of air it lets under the car and very little ability to produce downforce. I yoinked the roof scoop off last week, need to figure out a decent way to patch up my fastback since I've already proven to myself I'm awful with fiberglass. Finally, the aforementioned brake drag. I did a whole lot of adjusting my BX11 box mount kit and the right side elminated almost all drag simply from torquing the rotor on, loosening the other bolts (box mount adapter/caliper), then torquing things back down with pads installed. Left side needed shim combinations that I messed with for an hour and half and had it dialed, but when torquing things down one location only had about half thread engagement and hit me with the ole "righty-loosey", so I either need to threadsert/helicoil that location or get new box mount adapters.
Also threw together a moroso catch can setup on summit that I plan to drain back to oil pain. That should show up this week and go together pretty easy, because I have MSM motor the oil pan already has a location on hot side I'm not using to drain back to pan. Right now the driver side of my engine bay is covered in oil because simply running a filter off the VC wasn't cutting it, this motor ain't that tight.
Maybe I missed it, but why are you removing the roof scoop? Did it get damaged, or just wasn't making a noticeable difference?
On the quest for less drag, it's also not hooked up to anything since I moved intercooler up front. I'll A/B test it later on, but going into Road America I'm just trying to make the car more slippery (but still not willing to do OE bumper with trash can air dam haha). Hoping it also at least marginally increases wing efficiency/downforce, but not expecting much since I mounted it a bit low and the windshield of miata absolutely wrecks the air behind it.
That side-profile shot from Mid-Ohio is so sick. The car looks friggin' great. I suspect it'll look even better with the new lower undertray setup. RIP to the roof scoop but your reasoning makes sense.
On a related note, what side skirts are you running?
That side-profile shot from Mid-Ohio is so sick. The car looks friggin' great. I suspect it'll look even better with the new lower undertray setup. RIP to the roof scoop but your reasoning makes sense.
On a related note, what side skirts are you running?
Def think lower undertray will help not just aero, but looks. The bumper being higher than side skirts looks a bit weird. Bumper and sideskirts are KBD.
07-08-2024, 10:01 AM
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