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Race Prep Miata race-only chat. 949 Racing - Rim & tires

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Old 12-11-2013, 06:59 PM   #121
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Originally Posted by EricJ View Post
Oops, I have a set of '03 calipers and brackets and a master, booster and prop valve sitting in the garage ready to put on my TTE '99; AND I don't have 3 points to spare.
Less than 5 weeks until our first TX event, in the past how early have the rules been finalized for the next year?
btw, don't feel bad. I literally paid for sport brakes 30 minutes before Greg responded to me.

if you are running a points car...do you normally take the point for the PS pump and run a depowered rack, or are most people keeping the power steering? Definitely seems like a lot less fun to run the PS, but that point could probably be better spent else where...
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Old 12-11-2013, 07:16 PM   #122
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I guess if they split up the NBs, the NB2 might have to take points to remove power steering.
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Old 12-11-2013, 07:48 PM   #123
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I guess if they split up the NBs, the NB2 might have to take points to remove power steering.
I didn't realize the NB doesn't take points for PS? power steering was standard on the NB I thought?
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Old 12-11-2013, 07:55 PM   #124
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I didn't realize the NB doesn't take points for PS? power steering was standard on the NB I thought?
99 Base came with manual steering.
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Old 12-11-2013, 07:57 PM   #125
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Originally Posted by Red_5 View Post
99 Base came with manual steering.
it would seem you are correct sir:
1999 Mazda MX-5 Miata Base Convertible 1.8L 4-cyl. 5-speed Manual Features and Specs

newbie mistake on my part!
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Old 12-12-2013, 03:08 AM   #126
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Originally Posted by Red_5 View Post
I guess if they split up the NBs, the NB2 might have to take points to remove power steering.
Looks like that is a points free mod, except for an engine pulley change.
I can not find any mention of power steering or the steering rack in the points section except for shimming the rack to fix bump steer.

Looks like adding power steering is free, at least as of 2011 it was:
http://nasaforums.com/viewtopic.php?...power+steering
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Old 12-13-2013, 01:05 PM   #127
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Is there a clear winner on the "to dyno reclass or not" question for PTE with a NB2? Looks like you want to get to 145whp with a NB2 if you class on points. Getting there I'd imagine would take an ECU (+3), Intake (+1), Header (+2) and Exhaust (+2) which is about 8 points. If you dyno reclass you'll take a hit in your p:w but you basically get 8 extra points (possibly less if you spend more on tuning/0-point motor work) and a considerably "better" torque curve. So you could run a lot more tire, or throw some aero on.

I'm leaning towards dyno reclass, not entirely for performance reasons. It would be nice to be able to uncork the motor when I'm at a DE for some extra umf as well as things like power-steering delete and harmonic damper replacement.
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Old 12-14-2013, 01:57 PM   #128
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ST TT1-3 2014 rules posted. But not TTB-F yet.

http://www.nasaproracing.com/rules/Super-Touring.pdf
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Old 12-15-2013, 09:20 AM   #129
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Quote:
Originally Posted by FatKao View Post
Is there a clear winner on the "to dyno reclass or not" question for PTE with a NB2? Looks like you want to get to 145whp with a NB2 if you class on points. Getting there I'd imagine would take an ECU (+3), Intake (+1), Header (+2) and Exhaust (+2) which is about 8 points. If you dyno reclass you'll take a hit in your p:w but you basically get 8 extra points (possibly less if you spend more on tuning/0-point motor work) and a considerably "better" torque curve. So you could run a lot more tire, or throw some aero on.

I'm leaning towards dyno reclass, not entirely for performance reasons. It would be nice to be able to uncork the motor when I'm at a DE for some extra umf as well as things like power-steering delete and harmonic damper replacement.
Points cars are faster. You don't need the header.
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Old 12-18-2013, 02:02 PM   #130
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Just got an email from Greenbaum. All 1.8 miatas are taking a small penalty. 1.6 stay the same
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Old 12-18-2013, 02:04 PM   #131
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Just got an email from Greenbaum. All 1.8 miatas are taking a small penalty. 1.6 stay the same
Penalty? please elaborate.
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Old 12-18-2013, 03:21 PM   #132
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Penalty? please elaborate.
Weight.


I guess I have to apologize for that
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Old 12-18-2013, 03:28 PM   #133
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Not sure of the specifics but he changed my reclass from 141whp at 2105# to 140whp at 2115#.
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Old 12-18-2013, 04:53 PM   #134
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Weight.


I guess I have to apologize for that
Rewrites rule book for miatas, throws the dueces into the sunset....
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Old 12-18-2013, 07:03 PM   #135
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"Most of the decisions have been made. A6's are now 50 points, Miatas all start in TTC, etc."

from nasaforums.com • View topic - TT1, TT2, TT3--- 2014 ST Rules are posted

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Old 12-18-2013, 07:32 PM   #136
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Originally Posted by circuitmstr74 View Post
Just got an email from Greenbaum. All 1.8 miatas are taking a small penalty. 1.6 stay the same
Does this apply to 1.6 cars with a 1.8 motor swap? I would assume so...but
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Old 12-18-2013, 07:40 PM   #137
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Does this apply to 1.6 cars with a 1.8 motor swap? I would assume so...but
...about to import a jdm/eudm nb 1.6 vvt motor.
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Old 12-18-2013, 07:47 PM   #138
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...about to import a jdm/eudm nb 1.6 vvt motor.
I don't know of a 1.6L B series Mazda with VVT. Engine code, applications, production years?
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Old 12-18-2013, 07:51 PM   #139
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Damn. I was thinking about this some more. Let's say that the base weight goes up for points cars, and as mentioned the dyno reclasses become less favorable. The dyno reclassed cars will clearly be slower than before. However, the points based cars (being limited by the class maximum power to weight ratio), will be able to tune in more power to offset the added base weight.

This makes going the points classed route a bit more appealing. Too bad I've already committed myself to sticking with the dyno reclass route...
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Old 12-18-2013, 08:14 PM   #140
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Originally Posted by speedengineer View Post
Damn. I was thinking about this some more. Let's say that the base weight goes up for points cars, and as mentioned the dyno reclasses become less favorable. The dyno reclassed cars will clearly be slower than before. However, the points based cars (being limited by the class maximum power to weight ratio), will be able to tune in more power to offset the added base weight.

This makes going the points classed route a bit more appealing. Too bad I've already committed myself to sticking with the dyno reclass route...
This does kind of suck.

Since I'm swapping a VVT into a 1.6 car, I have no option but to dyno reclass. I can't imagine being able to build a points 1.6 motor that could compete, even with the substantially lower weight.
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