Valkyrie

Can someone give me a very basic list of what mods are allowed in ITS and what has to be done to make an FC competitive in that class?

Is there a class that you can build an FC for that will run in either SCCA or NASA?

Just curious because my FC is looking really sad and it would take too much time and money to restore it to 100% for the purposes of street driving, but stripping it for track use might be doable...

What sort of budget is required?

What other classes can NA FC's be competitive in without new car budgets?

j9fd3s

iTrader: (3)

ITS is a fun class, and you could do it with a car that is streetable if you pick and choose the mods correctly. NASA does PT/TT and i think the ITS prep puts it in PTC/TTC although since modifications are point based you could be in D or B depending on mods.

anyways, basically IT prep goes like this

its for NA cars only. the engine must be stock, including the flywheel. you must use a stock intake manifold and AFM.

the exhaust is unrestricted, except for sound in some places. you can run any ecu you want as long as its in the stock case, which makes Rtek pretty easy, although we put an E6X in there back in the day.

you can run any fuel pump/injectors/fuel pressure regulator you want, although stock is fine.

clutch is unrestricted except it must bolt to the stock flywheel, the transmission needs to be a stock NA. the fast guys ran the GTU's 5th gear, as its closer.

rear diff must be stock, most people probably ran the S4 clutch type, rebuilt for more preload, and the 4.3's

brakes must be stock, except pads and lines.

suspension must be stock, except swaybars, shocks springs and camber plates. in NASA the rear camber link is 3 points, i'm not sure its legal in the SCCA, but people do it anyways.

interior gets removed, you install cage+all the safety stuff

exterior stays stock.

you end up around 150-165rwhp, 2600lbs, and its fun, and the cars are pretty reliable

Valkyrie

Are coilover kits (stock geometry) illegal in ITS?

What sort of body work (reinforcement and weight reduction) is allowed and/or required to be competitive? Undercoating and sound deadening removal, welding, etc? Tower bars? Can you delete a sun roof?

Stock diff... that's kind of boring. lol. I guess you probably can't get away with using an aftermarket one since the sound and behavior makes it pretty obvious. 4.3 sounds like a must for track work.

Do you have to stay within your original trim level or can you upgrade the brakes to four-pots, use toe control cancelers, replace mounts and bushings, etc?

Does stock exterior include wings and splitters? Can you roll the fenders? What about tire and wheel sizes?

I mean, I want a cheap class but if you can't at least do a few basic tuning mods, it's not as much fun...

j9fd3s

iTrader: (3)

coil overs are legal. body is stock, except where you add the cage, and remove undercoating. tower bars are fine, removing the sunroof is legal too.

i think you could run an aftermarket diff, it just needs to be the NA one. i also spaced on the diff gears, most racers either run the 4.88 or 5.12's which requires that you buy the 1st gen set and cut the pinion so you can put the FC long pinion snout on there.

you can run the 4 pots. i think all the mounts and bushings are legal.

in the PT/TT classes you can do a wing and splitter, but i'm not sure about the SCCA. fender rolling is legal, but flares aren't, well in the SCCA.

the SCCA runs a 15x7 wheel, with a 225-45-15 tire, NASA lets you run anything you want, but wider takes more points.

IT is a cheap class!

oh yeah if this wasn't clear the emissions can be removed, and that means all the 6 port/vdi crap too, not that it helps

Valkyrie

Thanks!

BTW when you say flare you mean add-on flares, not flaring the fenders in order to widen the track width without spending any money, right?

On that note, I assume wheel spacers are legal.

j9fd3s

iTrader: (3)

you can roll the fenders, but pulling or flaring isn't legal in that class.

spacers are legal, but the SCCA might limit your total track width.