I've read the TT rules multiple times and I'm still confused.

Does the hp/weight ratio classification supersede the point base classification?

i.e. The point base system puts me right on the edge of TTB, but my adjusted hp/weight is right around 10.08:1, which is TTA.

 

correct. i went through the same process like wtf. so basically look at the p/w then say with you in A then you can "fill" your points from the base class and be fine.

 

If I'm classified based on hp/wt, then do points really matter anymore?

Or are they both looked at every time I make a change to the car and whichever is highest dictates the class?

 

yeah points matter because if you have more points than allowed from your "base" class to "actual" class then you will be bumped up.

 

Thanks!

 

Don, were you dyno re-classed by Greg?

 

I just emailed my dyno plots to Greg on Tuesday. Haven't heard anything back.

Looking back over the points sheet, because I have a turbo setup, do I have to take points for:
-Mod' air intake
-Aftermarket Boost Controller
-Aftermarket wastegate
-Aftermarket intercooler
-Mod'd echaust manifold
17 point right there.
I guess technically, yes. But I've taken 5 points for having FI, plus another 10 for have the AEM EMS with FI. Kinda feels like I'm getting double dinged.


Also, we talked about upgrading my camshaft from a GSR to and ITR, does this count as a mod'd camshaft though? +6

 

That's what I figured. It would have been weird for him to reclass you, and then your P:W ratio be off.

When you get dyno adjusted, all the engine points go away. The new base class accounts for that (which for you will probably be TTA or TTB* or TTB**). All other points (suspension, transmission, aero, tires, etc.) are still in effect. Also, when you get dyno reclassed you can't use the normal "-50lbs = +2 pts" or whatever. Instead, you need to get a new reclass done. Typically, Greg gives out 3 or so options with different weights/power levels/base classes, so you can pick how you want to do it. Right along with that, you will need to make sure you stay within the proper P:W ratio for whatever class you wind up in, in addition to points. The reclassing pretty much covers that though, so you should be fine.

Also, for non-OEM turbo applications you can't just piece together the points, you're instead required to get the dyno reclass. It'll probably work out in your favor in the end, but even if it doesn't you're stuck with it.

 

lulz
It looks like I'm going to have to run TTS. fml

 

:snickers:

 

Yeah, oops

 

Greg said my base class was TTA*
So from my understanding, by the time I add points for suspension, brakes, aero, LSD and tires; I'm bumped up two classes.

No problem. I'm sure I can run head to head against a GTR on Hoosiers.....
:/

 

Yep, you'd be hard-pressed to remain in TTA. That does seem pretty damn silly though, what are your laptimes like currently? Unfortunately, it looks like Danny Popp is the current TTS record holder at VIR with a 1:59.

 

My goal was a 2:10. I think if I could shave some weight and drive it like I don't care about balling it up, maybe I could get in to the 2:08 range if I quit early braking into 1 like a sissy.

TTA Z06's are running 2:05's. I was hoping for TTB because most of the M3's are running in the 2:08-2:12 range and I could be competitive with them.
Me being in TTS is a joke and is pretty discouraging from trying to run the entire series.

I think I'll just keep the interior I have and try to run 'street' class with Redline if they ever come back around.

 

What's the current weight for your car? You could try dropping the power down to maybe get bumped to TTB*.

 

Around 2600 with me in it. I could put a lower wastegate spring in it. Remove all my aero, remove lsd tranny, go with street tires, and just maybe get into TTA. My best time ever on street tires was in the 2:12's.

 

How much HP are you making? Just go with an N/A motor and you should be in TTB. I'm in TTB with a 200whp B18C in a 2500lb car.

 

I emailed Greg sunday night to get reclassed. Still waiting to hear back from him

I'm hoping to be TTD or TTC with points to play with. I definitely don't want to TTA.

187whp in a 2680lb car w/driver

 

i don't know anything about your car but your p/w is 14.33:1 which is still good for ttd.

 

To stay in A you'd have 12 points left to play with after your initial classing. You could get some points back on tires too, as the base tire size is 295 in A and I'm pretty sure you're not running that wide (even if you're using 275s that's -4pts). Going to a street tire would help also. Figure at least +5 for shocks/springs, not sure if you have swaybars, LSD is +3. Aero gets expensive, unfortunately. You'd probably have to change things a little, but you might be able to squeeze in. The only points you would for sure have to get dinged with would be "altered transmission gear ratios". No way around that one, unless you use a D-series trans.

Dropping power would be the easiest/quickest way to do that. To squeak into TTB* at the current weight that would mean 250whp. Have Jack tune for torque, as thats totally unregulated by the system (I don't totally understood how this is done, but apparently lots of people are doing it). You could definitely have all your aero stuff, big Hoosier A's or something and be in TTA. Or make similar modifications as above (lose some/all of the aero, etc.) and maybe stay in B. Your base class would be TTB* most likely so you'd have the same number of points to work with.

 

Awesome starting point which I figure I would be in lol. It will move into TTC easily. If I calculated everything correctly, I maxed out in TTC and anything else would push me into TTB which is what I wanted, that way if I wanted to run TTB, I can just shed more weight.

I have lots of mods (aero, r-compound, suspension)

 

92integra, note as I said above that if you're dyno reclassed and you want to change weight you have to get reclassed, you can't just use the standard weight savings point listings.

 

Oh ok. But if I am classed for TTC and wanted to run TTB in my TTC prepped car, that is allowed right?

 

92teggy... you'd need to email GG for a TTB class.

Both of you guys... GG should have provided you with a couple of options. both my base options were TTD* and TTD**... the difference between the * and ** was 100lbs.

I should end up in TTC...

 

Yes, you can do this. You don't have to be prepped to the class limits to run up a class, lots of people do this to populate classes, or to run with people when their own class is empty.