Nasa TT/TD disccussions
 

Need help with classing? Want to discuss parts specific to TT/PT? Is it related to the twins?

This is your thread.

Crap - Mike beat me to it....


Thanks for getting this started.

Figure I'll throw this out there for people who haven't read the 2016 rules.

NASA has increased the minimum competition weight (car + driver, measured immediately after you come off track) again for 2016.

Year -- Comp Weight
2014 - 2775 lbs.
2015 - 2885 lbs.
2016 - 2940 lbs.

So, if you are competing in TTD-B classes you will need to take points if your car with you in it is lighter than 2940 lbs (or add ballast). While I think these weight increases were unnecessary, these are the rules. That said, I'm looking forward to competing in TT4 next year (planned weight/power ratio of 12.0whp/1lbs) when they introduce the new class. I'm prepping for it this year and will most likely end up running in TTB, even though I'll probably be quite under powered.

When will NASA TT come to PNW? :wub:

Don't forget you can dyno-reclass into your target class, and effectively take zero points for all of your power mods.

You get hit hard power to weight though. My dyno reclass had me at 15.67 lbs/whp. Class power to weight is 14.25 lbs/whp and adjusted can be even lower (tires less than 245mm gives you another 0.4 lbs/whp etc.). So at 195whp (which is what I make on 93oct) I would have to be at 3055 lbs. which would mean I would have to add 170 lbs. of ballast to the 70 lbs I already have. If I were to re-class using my E85 number of 205whp I'd be at 3213 lbs.

I really don't think dyno reclass is the way to go with this car, especially for TTD. Best build in my opinion is:

5pt exhaust (header/fp/catback)
5pt decent coilover (like KW V2 or something)
6pt 225 Hoosier R7
2pt BBK or diffuser maybe
1pt Clutch type LSD
0pt E85 tune and lots of bushings

There's more to dyno reclassing than peak horsepower.

If you're serious about competing, schedule a consult with me, and I can show you the light.

I wish I could even find a dynojet to make a couple pulls on, all we have is Mustang Dynos.

YAYYYYYYY :)

I have my comp weight at 2800 this year. Last year I was out 2950. I'm excited to see how it feels now.

How will that impact you classing/points wise? And where did you loose the 150lbs from?

I, for one, would like to see this thread succeed where the other one failed.

My name is Chase and I am really hoping to go through the NASA HPDE licensing program this year and hopefully race in TTD. I have done quite a lot of reading with regards to classing rules so I am really excited about see how everything turns out!

I look forward to learning and sharing in this thread!

Getting your comp weight down to 2800 isn't very hard. That's about where I was last year (my comp weight was 2885 and I was running 70lbs. of ballast and I weight in at around 210-215lbs with all my race gear on, leaving my car around 2600lbs with about 1/2 tank of gas).

I was able to get my car (not including me) down to around 2600lbs while leaving the interior completely stock. My lightweight mods include:

Removing trunk junk - about 40lbs.
Lighter wheels (Enkei RPF-1) - about 16lbs
Essex Sprint BBK - about 20lbs.
Driveshaft Shop Carbon Fiber DS - around 13lbs.
ACT Pro-lite Clutch and flywheel - around 12 lbs.
Shorai 5lbs. battery - around 20lbs.

So that's about 120lbs right there from the car and you can get another 20 pretty easily by moving to a lighter cat back from the stock one.

When you want to remove even more than that, take a look at @Anthony build thread:

http://www.ft86club.com/forums/showthread.php?t=42284

My name is Faber - 2013 BRZ Limited - NASA Central.


Car currently has too many points, would be in TTC.... debating how much money or time I want to spend to make it back to TTD before this season. This will be my first NASA season.

Plans for Spring:
4.56 Final Drive swap
Maybe 4 Point Roll bar w/ seat/harness/hans
Maybe 17x8 w/ R Comps




Current Parts Combo:
(Finish while I am not at work)