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

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Old 03-21-2016, 09:21 PM   #701
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Originally Posted by btabor View Post
Where are you from?
I'm in Indianapolis, planning on working on getting all the nasa hpde sessions done this year and run tte or ttd next year. I'm running a NA with vvt swap but I just dynoed at 152hp/130ftlbs, so it will really have to be detuned for tte. What do you recommend I do?
I recommend focusing on learning to drive on track and waiting for the 2017 rules to post, because D and E will probably be dead.
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Old 03-21-2016, 09:28 PM   #702
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I thought Xidas were 5 points by themselves due to the shaft diameter. Where are your points for springs?
Shaft Diameter? That's a new one.
Read the rules here: https://www.nasaproracing.com/rules

3 points for non-BTM shocks, no reservoirs
2 points for non-BTM springs

Xidas = 5 points.
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Old 03-21-2016, 09:33 PM   #703
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Originally Posted by dasting View Post
waiting for the 2017 rules to post, because D and E will probably be dead.
I doubt D and E will be dead. The rules will certainly be different, but there'll be a place for the current D and E cars.
It maybe called TT6 or TT7 and maybe a straight W/P ratio, but there's too many current 'customers' to not have a place for the cars.
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Old 03-21-2016, 09:38 PM   #704
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Quote:
Originally Posted by btabor View Post
Where are you from?
I'm in Indianapolis, planning on working on getting all the nasa hpde sessions done this year and run tte or ttd next year. I'm running a NA with vvt swap but I just dynoed at 152hp/130ftlbs, so it will really have to be detuned for tte. What do you recommend I do?
I'm from Columbus, Ohio. Look me up at the next event!

Run it really heavy on a * reclass.

Quote:
Originally Posted by dasting View Post
I recommend focusing on learning to drive on track and waiting for the 2017 rules to post, because D and E will probably be dead.
Or this. By the time you earn your TT license, it might be 2017 anyways.
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Old 03-21-2016, 09:41 PM   #705
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Originally Posted by EricJ View Post
I doubt D and E will be dead. The rules will certainly be different, but there'll be a place for the current D and E cars.
It maybe called TT6 or TT7 and maybe a straight W/P ratio, but there's too many current 'customers' to not have a place for the cars.
Even if they're not totally dead (and by dead I mean renamed to TT5/6/7, no one expects NASA to completely give up on slow car racing), it's looking rather likely that there will be a significant rules change. Maybe not, either way, too early to start speculating how to prep a car for 2017 season for D/E yet.

Shaft diameter rule does exist, just doesn't apply to Xidas.
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Old 03-21-2016, 10:30 PM   #706
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Here is the second attempt at uploading the record lap. It's only 360p, but at least watchable.
GoPro Hero2 is ancient by now...

Listen to that open diff! LOL

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Old 03-21-2016, 10:38 PM   #707
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Full 1080 comes up fine for me. (Youtube usually takes a few minutes before it processes all the levels).

Lol, yeah, that poor open diff. Not a chance on putting power down in those slower turns.
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Old 03-21-2016, 10:51 PM   #708
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Full 1080 comes up fine for me. (Youtube usually takes a few minutes before it processes all the levels).
Well would you look at that..
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Old 03-22-2016, 10:31 AM   #709
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I cant break it down much more than I did. I can currently afford the sways since I'm on an open diff and SM6s. This leaves me with 2 points left on the table and the 2 brake points are pretty much a waste.

Near-future goal setup includes removing the brakes(-2) to fit SM7s(+1 over SM6) and a diff(+3), to bring me up to the 19 point cap.

Jeff is pressuring me into stock sways and R7s over sways and SM7s but i currently love the way it handles and don't want to risk it :(
I missed that there was no diff in your current setup and I haven't checked out the 2016 rulebook for tire points.
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Old 03-22-2016, 07:27 PM   #710
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Are any of the OG's going to come out of the woodwork this year for some whooping in E/D? At either championships?
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Old 03-22-2016, 08:20 PM   #711
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Are any of the OG's going to come out of the woodwork this year for some whooping in E/D? At either championships?
I think all the OG's (former national champs) have left PT. New blood is fast though. Taking up the fight quite well. The full points build NB1 has never won nationals or T25 though. I'd like to see that.

Just playing with the NASA calculator, this is what I would build:

NB1, 2410# 146whp
83.5mm 9.9:1 blueprinted
full exhaust
stock cast header
MS3 Pro
E85
CAI
Xida 1000/400
stock sway bars
OS Giken & 4.77
15x9 6UL
SM7

Pretty much what we ran in 2013 but now with 2pts leftover that I would use for ELBJ's.
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Old 03-22-2016, 08:38 PM   #712
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Do you think a NA with vvt would be competitive or I'm I wasting my time?
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Old 03-22-2016, 09:27 PM   #713
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Originally Posted by btabor View Post
Do you think a NA with vvt would be competitive or I'm I wasting my time?
Use all 19 points well, and anything can be "competitive" regionally.

There's a very fast vvt swapped NA in my region. He's even on a TTE no-star reclass and uses the 7 asterisk points on wing/airdam. He has the PT record, I have the TT record. Our cars are about as different as two NASA PT/TTE Miatas can get.
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Old 03-22-2016, 09:50 PM   #714
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Do you think a NA with vvt would be competitive or I'm I wasting my time?
Since the rulebook is massively changing in 2017 you're wasting your time worrying about what is competitive under the 2016 rules.




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Old 03-22-2016, 10:00 PM   #715
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What about a 1.6L?
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Old 03-22-2016, 10:03 PM   #716
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Guaranteed to set a new lap record at pretty much every track in the US.
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Old 03-22-2016, 11:27 PM   #717
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Originally Posted by dasting View Post
Even if they're not totally dead (and by dead I mean renamed to TT5/6/7, no one expects NASA to completely give up on slow car racing), it's looking rather likely that there will be a significant rules change. Maybe not, either way, too early to start speculating how to prep a car for 2017 season for D/E yet.

Shaft diameter rule does exist, just doesn't apply to Xidas.
Oops, your right. I never looked at the reservoir sections.

And your also right about not spending money prep'ing a car for unknown rules. I did finally sell the sport brake setup I bought in the fall of '13 for my '99 when they split NB1 and NB2 in the '14 rules.
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Old 03-23-2016, 12:14 AM   #718
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Guaranteed to set a new lap record at pretty much every track in the US.
Sweet!
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Old 03-23-2016, 12:25 AM   #719
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Originally Posted by emilio700 View Post
I think all the OG's (former national champs) have left PT. New blood is fast though. Taking up the fight quite well. The full points build NB1 has never won nationals or T25 though. I'd like to see that.

Just playing with the NASA calculator, this is what I would build:

NB1, 2410# 146whp
83.5mm 9.9:1 blueprinted
full exhaust
stock cast header
MS3 Pro
E85
CAI
Xida 1000/400
stock sway bars
OS Giken & 4.77
15x9 6UL
SM7

Pretty much what we ran in 2013 but now with 2pts leftover that I would use for ELBJ's.
You would rather have the extended ball joints over ARBs?
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Old 03-23-2016, 12:39 AM   #720
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Quote:
Originally Posted by emilio700 View Post
I think all the OG's (former national champs) have left PT. New blood is fast though. Taking up the fight quite well. The full points build NB1 has never won nationals or T25 though. I'd like to see that.

Just playing with the NASA calculator, this is what I would build:

NB1, 2410# 146whp
83.5mm 9.9:1 blueprinted
full exhaust
stock cast header
MS3 Pro
E85
CAI
Xida 1000/400
stock sway bars
OS Giken & 4.77
15x9 6UL
SM7

Pretty much what we ran in 2013 but now with 2pts leftover that I would use for ELBJ's.
I would maybe consider front lower offset bushings to get to a desirable camber level for free and switch to 205mm R7 which is only 1 more point than SM7. Then one additional point to use for something trivial.
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