RX-Ben

New ST/TT guidelines are out. I am interested to hear where people are headed. There look to be four options, unless you want to head down to PTB.

NASA
ST3 - 9,5:1, available -.5 mod for no aero, I assume the prior -.4 for 275s is still around
ST2 - 8:0:1 - no non-aero mod bonus , same old rules with some bones thrown in odd directions

NARRA
GT3 - 8:75:1, -.4 discount for the 275s, no penalty for slicks
GT3 - 7.5:1, no penalty for slicks

NASA ST/TT Guiedlines

NARRA Rules

2MCHPWR

For NASA, were can a mostly stock TTA c5 z06 play without adding $$$ suspension and brakes that are allowed in TT3?
I'd like to keep my car as is and just continue to play in TT. 3250 lbs / 360 hp = 9.02:1.
I guess I could have added more power since I run 275's to bring it down to the .4 mod factor we're allowed for the 275's in both NASA and NARRA but I didn't realize that until 3/4's through the season.

96solo

I see nothing in Greg's post about no aero mods for TTS now TT2, but only see it for TTA now TT3. Where do you see that?

RX-Ben

fixed the ambiguity. I tried to put a poll here, I'll post it separately. Sometimes I'm real bad at the internet.

Stock C5Z is still TT3. Transmission is now universally open.

brkntrxn

Base C5s are also ST1/2/3 and no longer allowed in PTB*/TTB*.

What a goat-screw!!!!

My car went from being a nationally competitive PTA/TTA car to a DE3/4 car overnight.

RX-Ben

Well, you aren't the only one to suffer the effects of a destroyed PT/TTA market.

Hmm, I think that is still an open point and can't see a reason why they would kill he PTB/TTB option.

msracing

Hey i am think of racing my C6 ls2 vette next year,, its a track only car with full cage,, some aero with a wing and front splitter,,, the motor is a ls 2 with cam , intake headers, brakes are big brembo front and stock z06 rear... Moton Coilovers... 3200lb.

what class would i fit into in Nasa and Scca... ?

Manny

BERETTA

Depends on your rear wheel HP, most likely ST2 for NASA unless you have big power 8 to 1 ratio for ST2 next year. As my car sits right now I can go 406 at the wheels with the new 8to1..

SCCA= STO most likely, stick around --STO changes are due out Monday.
Rumor has it they are making changes to STO to a point where T1 cars and STO may fit in the same class?

Jason

corvettes are out of TTB

msracing

i have 420 hp are there is aero open on ST 2 is the tire size open.. anything else i need to know,,, Thank you for the help..Manny

Z06Tracker

Ben,

I am torn. Maybe move to ST2. But, I am also thinking ST3\STR3. My aero is easily removeable. So, I could set wt\hp for ST3 without aero, and add the aero if car count is better in STR3 as there is no penalty in STR3 for aero.

AU N EGL

What is the rear wheel hp?

3200 lbs+ 225 of you = 3225 lbs

3225 / 8.0 ( NASA ST2 ) = 403 RWHP

if you have MORE then 403 rwhp then it would be NASA ST1 class.

Think I have that right



SCCA maybe STO but may need a TB restrictor plate depending on RWHP


First thing is to get your RWHP off of a dyno jet

AU N EGL

ST2 3250 / 8 = 406 rwhp

so 400 rwhp, hmmm for ST2.

and

OUCH

does this mean no more PTA for C5Zs or PTB C5 Coupes ?

but could be ST3 3250 / 9 = 361 rwhp

( Plus or Minus modifications points )

I am reading this correctly ?

RX-Ben

I see that now and I don't understand it (actually I do, but not from a performance standpoint). So the C5 has been converted to an "S-U-R" car, in all its feeble variations, overnight.

All the competitors driving the following cars have also experienced the same upheaval. Given their consistent participation and support in the TT/PT classes, I expect a huge outcry.

BMW - 2006-2008 M5/M6
Ford - '07-'09 Shelby GT500, 2012 Mustang Boss 302
Lotus - Exige S, Espirit V8 TT,
Mercedes - SL65 AMG, E63 AMG, CLK63 AMG, CL65 AMG
Nissan - 2009 370Z Nismo,
Ferrari - 355, 456 GT, Testarossa
Porsche - 997 CS, 997 Club Coupe, 997 C4S, 997 C4, 996 Turbo, 996 C4S

RX-Ben

Who is going to show up for STR3 - Legends and Panoz cars?

RX-Ben

I didn't think that language pertained to TT/PTB, but there is a confirmation elsewhere that PT/TTB is off limits to any C5 as well.

http://www.nasaforums.com/viewtopic.php?f=2&t=66311

fatbillybob

SCCA similarly has destabilized it's racers. The nation of club racers is not happy. Since both major clubs have done this at the same time there is no where to jump for rules stability. 2013 is going to be a very bad year as we all play musical chairs for probably a drop in net drivers as some just plain park cars until the dust settles.

RX-Ben

My comment was tongue-in-cheek given that the cars I listed don't compete (or at least not consistently) in NASA TT/PT. But your comment is still on point.

On the upside, the NASA rules are now much closer to the NARRA rules, though I realize that NARRA isn't an option for all.

clubracer6

JerryTX

So who is going ST3 and who is going ST2 in NASA. I was on the fence but given the low potential car counts in ST3 in TX, I may up the power to get to 8.0/1, especially since I blew up my LS2 this weekend

JK