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Old 06-11-2015, 10:30 AM   #21
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What's keeping you from tracking out at T1 is that you're not unwinding the wheel. Your apex looks alright, especially the one at 2:50ish.
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Old 06-11-2015, 10:57 AM   #22
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Quote:
Originally Posted by Dunning Kruger Affect View Post
What's keeping you from tracking out at T1 is that you're not unwinding the wheel. Your apex looks alright, especially the one at 2:50ish.
I would suggest carrying more speed through T1 so there is an actual need to open the wheel and track out.
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Old 06-11-2015, 11:34 AM   #23
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I would suggest carrying more speed through T1 so there is an actual need to open the wheel and track out.
I agree. Typically I'm trying to open the wheel based on how much speed I feel can be gained by continuing to track out left vs just driving out there for the sake of it. In my mind, that also conflicts with the need to get back track-right before the kink leading into T3.

For what it's worth, according to my HLT telemetry, on the first lap you see in the video, my minimum speed through T1 is 45mph, and my max leading into T3 is 81mph. On the second lap, my minimum through T1 is 48mph, though my max leading into T3 is 79mph. How does that compare with what you guys experience?

By the split time, I was actually 0.47 secs faster through T1/2 on the first lap. Which is interesting because on the first lap I also had a 2mph lower top speed coming off the front straight leading into T1.

So many variables though. Like my T1 braking zone or how the different lines impact my time in T3/4. There's not a good comparison there since I was off-line in T3 letting the corvette pass on the first lap.

thanks for all input!

Last edited by bigmackloud; 06-11-2015 at 12:17 PM. Reason: typo
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Old 06-11-2015, 11:41 AM   #24
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Here's a full session from last year. My T1 entry speeds are consistently in the 48mph range, I always track all the way out, but I have/had some time to find in T3. I'm brushing 80mph on most entries into T3, but it's a corner that I'm working on, especially with some of the changes that were made to the track over winter.

How much power are you putting down?
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Old 06-11-2015, 11:57 AM   #25
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unwinding the wheel reduces the speed you lose due to scrub. So yea, you don't need to unwind, but at the same time the least amount of steering angle will get you the most speed from T1-T3.
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Old 06-11-2015, 11:58 AM   #26
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How much power are you putting down?
Honestly, I'm not sure. It's a 162k mile 1.6L with a Greddy turbo making typically 9 psi, tuned with an Emanage. I guesstimate 165rwhp. But that could be way off in either direction.
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Old 06-12-2015, 09:35 AM   #27
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So let's talk about what's achievable for a moment. What are some of the fastest Miata's you've seen lap VIR? The miata.net thread posted earlier had a guy with an ls1 Miata knocking down something like 2:05 laps, which is blazing. But let's say something more attainable, sub-200hp, r-comps, legit suspension, full aero, competent driver... what would you expect?
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Old 06-12-2015, 10:45 AM   #28
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Spec Miata times are in the 2:18 range, PTE is in the 2:17s.

There's a PTD Miata that has done 2:12. PTD is 14.25lb/hp unless if you go into a * classing. Go look at the Mid-Atlantic lap record sheet.
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Old 06-12-2015, 11:51 AM   #29
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Yea, I see the PTD record you're talking about. So I googled the driver, Alex Phelps. Looks like he's a better driver than I'm going to be any time soon (or perhaps ever). He also broke the PTD record by over 3 seconds with the 2:12 lap. Pic looks like an NC Miata. I'd be curious about more specs on it.

https://teamsneed4speed.wordpress.co...4/alex-phelps/
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