I don't realy run anymore but I think the best setup would be a reclass to TTC* at around 2700lbs
with probably a F22 motor and intake/exhaust/ECU and detune it a bit up top

+5 shocks/springs
+4 wing
+3 225 R7


thats it

 

Can't wait. I am going to be planning towards tt# based setup for this.

 

So I tried one last attempt with Greg to see if the Mugen hardtop could be allowed in TT3 without taking the Modified OEM Roof Line points, but he wasn't having it. So if you show up in a TT3 with all OEM aero except a Mugen hardtop you are dinged .7 by losing the .4 for OEM aero and taking the -.3 for Modified OEM Roof Line. I don't believe that was ever truly the intent of the rule, but Greg didn't seem like he wanted to change it to read differently.

 

There exists a 43 page thread on OEM hard tops vs aftermarket on the NASA forum. I'm quite sure he considers this a discussed and decided issue. I don't really think it's an s2000 based decision. While there are certainly many s2000 owners who would like to run something different, think of all the Miata's out there. Further, they have a lot of people who would engineer something to gain a 1mph advantage, with a very small deviation from stock.

i know there is fluid dynamic analysis, that show a Spoon hardtop is a clear advantage. And Im fairly certain I could even expand on that advantage. I have my own doubts that a Mugen top provides anything significant. However, given that there are clear examples where non-OEM hardtops are advantageous, NASA really has no choice but to assess modification points/factors to non OEM equipment. And honestly, it's pretty much like that with everything we do that's non-OEM, not just tops. Some of those assessments also apply to things of questionable aerodynamic value given the points/modification factor (i.e. CR aerodynamics)

Good news is with the Mugen top assessment, you could go aero crazy; underbody tray, diffuser, wings, etc

 

Run top down.... oem aero.

 

That 43 page thread deals entirely with TTC/TTB where the rules are very different. The modified roof line is a penalty meant for people chopping/laying back windshields and severely lowering the coefficient of drag. It's just another poor interpretation that will penalize future S2000's wanting to participate in time trials that already have a Mugen top. I have known about this rule since I bought my Mugen top 2 years ago. I have purchased an OEM replica top, but I am not happy about it.

 

Is that your plan? I can't run OEM Aero regardless of hardtop.

 

In the numbers class. Does oem aero include the cr aero since that is "oem"?

 

That 43 page thread deals entirely with TTC/TTB where the rules are very different. The modified roof line is a penalty meant for people chopping/laying back windshields and severely lowering the coefficient of drag. It's just another poor interpretation that will penalize future S2000's wanting to participate in time trials that already have a Mugen top. I have known about this rule since I bought my Mugen top 2 years ago. I have purchased an OEM replica top, but I am not happy about it.
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Don't disagree with you in principle. I just know he's gonna stick with a strict interpretation of "altering the roofline". And since the TT/PT rules are merging into ST/TT, he will stay consistent with prior interpretations

 

I doubt it will be included, since the rules generally state BTM (base trim model).