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"Button" PTE #103

 
Old 01-13-2019, 06:30 PM
  #321  
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what is your plan for balancing the rear with the 3" splitter? I thought you were already running 0* AOA? I could be wrong about that. Is there a point hit for a 4" splitter or is it just entirely illegal?
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Old 01-14-2019, 01:10 PM
  #322  
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Originally Posted by MiataMan00 View Post
what is your plan for balancing the rear with the 3" splitter? I thought you were already running 0* AOA? I could be wrong about that. Is there a point hit for a 4" splitter or is it just entirely illegal?
Launch annoucement: Introducing The #GRIDLIFE TOURING CUP (GLTC) ? #GRIDLIFE
Rules: https://drive.google.com/file/d/1_QL...FmPAqAQGr/view

They require a glass, or 1/4" plastic windshield, and limit splitter depth to 3". Currently, my car is not legal.
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Old 01-14-2019, 03:49 PM
  #323  
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Get with the times whorge!


I'm really curious to see how GLTC goes over the next couple of seasons. It'd be cool if it expands to multiple tracks and maybe becomes THE catch-all w2w series.
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Old 03-26-2019, 09:39 PM
  #324  
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Engine is in.
Engine is through its first oil change, needs a second swap for the Amsoil dominator race oil, then a thorough tune with our external/optical rpm pickup.

Still debating the pro/con of a splitter. It costs me .5 penalty in P:W, roughly 75lbs in current 139whp config.

A minor improvement in radiator ducting has been made, and a cool comparison photo was taken of a Supermiata S2/ST5/ST6 airdam undertray laid under a Supermiata S1/ST5/ST4 4” splitter. The birch plywood tray is from Renderos Racing. I bought one of his kits Incase I decide to delete my splitter for the P:W bump, or for Gridlife GLTC use.






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Old 03-27-2019, 12:04 AM
  #325  
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2215lbs with a qtr tank AND driver.
Ballast up (2400-2450lbs) for ST5, pull it out for GLTC. Win.

It needs some new corner weight attention after the latest round of weight removal, then another oil change and a final dyno appointment.





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Old 04-10-2019, 05:04 PM
  #326  
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Prep post:

New engine is in. Its been to the dyno a couple times. It is shy of our power goals. We're all kind of stumped. A few other engines with very similar builds have landed in the 160-165 range, this one should have too. But our best run so far has been 151.44, SAE Dynojet, smoothing 5 for NASA ST rules.



I've double checked cam timing, swapped to amsoil dominator race oil, fresh clean air filter, new muffler(Racing Beat's new Power Pulse Race Muffler, look for it on Supermiata.com) and just generally gone through the car looking for any and every little problem. It makes 151whp on corn.





So, without the 151-158 Average, I can't ballast up to 2400lbs. That means I can't run 9" wheels or 225 R7s. So, I'll stick with my light weight 2250lb build, with splitter and 205s on 8" wheels.

The car is capable of being sub 2215lbs with me in, so I need to add about 40lbs of ballast to keep from going under 2250 if I run it out of gas.
With no ballast added, and the wheels off, my 1999 miata weighed 1999lbs on the hub stands, kinda cool.


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Old 04-10-2019, 05:56 PM
  #327  
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Weekend recap:

NASA SoCal. 3 in ST5 Saturday, 1 in ST5 Sunday. So I TT'd only.
11 in TT5 Saturday turned into 8 Sunday.

Basically, right off the trailer onto the track. Session 1 Sat morning is warmup/practice, times don’t count. I ran it on 225 RC1.


Session 2 was timed, and good conditions. I swapped to some fresh R7s and ran a new PR. 1:58.75.



Peep that new Racing Beat Race muffler:



Team TAPG (Toyota Arizona Proving Ground) threw in their hotshoe, and a set of stickers and nudged me out in session 3. So I had to go back out in session 4.



I went through my data and found several places for improvement for session 4. One of the best drives in recent memory, and I was able to drop some time, but I was not able to outpace the terrible conditions. 80* ambient, windy, 105* surface. If I had been a bit more familiar with the car, or had a test day...

We put 3 seconds on the field. J Allan in P3 won a PTC championship alongside me(in PTE) in 2016 and is no slouch.

Day Two:
Session one, best conditions, now counts for competition. I went ham. Again, THIS session was some of my best driving in memory. Data review from the day before, tire data from the day before, fantastic conditions, no breeze, cool air, no clouds. So good.




Last edited by doward; 04-11-2019 at 10:19 PM.
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Old 04-10-2019, 05:57 PM
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Old 04-11-2019, 01:14 AM
  #329  
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Old 04-11-2019, 01:01 PM
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So Preaux.


How come no Tarmac88 steekers
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Old 04-11-2019, 10:17 PM
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Originally Posted by emilio700 View Post
So Preaux.


How come no Tarmac88 steekers
I'm trying to borrow that diff out of sonny’s car for Championships. I need more SPM brownie points.
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