[8695Beaters]

Well the whole point of having VTEC is to run two cams in the same engine. The low profile cam is for torque and the high profile is for high rpm flow. Setting the threshold lower will take away from that high rpm gain. And if you want to race, then most of the time wou will be revving high anyway. so lowering VTEC too much won't help.

As for your first question, there are hundreds of ways to go faster. Here are my favorites: Basic bolt-ons (CAI, exhaust, headers, plugs, plug wires, ignition, intake manifold). Then a good tune will always help you out for power. After that, how fast you want to go depends on how much you want to root around in your engine and how much you can afford.

Are you going road racing (aka anything but a straight line)? If so, then you will want a trusty set of two-way adjustable coilovers at the least. Some strut braces, and a set of camber plates if your coilovers didn't come with any. If you can afford them, adjustable A-arms and toe links will help too. And of course a good set of sway bars never hurts. If you don't mind the noise and ride, then polyurethane bushings and engine mounts will also help. You will also need some lightweight (16" or less) wheels with some nice, sticky UHP tires. Don't go to crazy with the offset, or your handling will all go to hell.

Think about brakes, but not too hard. Some good track/street pads and maybe stainless steel brake lines. Make sure they are DOT approved (most generic lines aren't). If you plan on racing more than a few laps at a time, then bigger brakes will be necessary to avoid brake fade. If you want to go to the trouble, go ahead and flush your brake lines and fill them with DOT-5 fluid. Make sure that the brake seals in your car can handle DOT-5 without swelling up and leaking. I don't think that will be a problem on a modern Integra, but I'm not sure. Anyone else know for sure? If you're weekend racing, then all you really need to do is just top up your reservoir with DOT-3.

Then there's always stripping weight, but use that at your own discretion. I prefer having a complete car, so I usually strip the sound deadening and leave the panels. A good harness and seat (both FIA approved) will shave weight and help your driving. A smaller battery is also a good way to remove some weight. Just don't ever leave the lights on.

All this depends on two things: What racing class are you looking at and how well can you drive? I'd say start out in a stock class in whatever series you are looking at. Most don't allow VTEC controllers and are very limiting on what mods you can make. Read the rules VERY CAREFULLY before you buy parts. Also, learn how to drive your car while it's still slow, so you can handle it better when it's fast. Go find a backroad and beat on it some. Practice some technique and figure out the car. A good driver can beat a good car most of the time. A good driver also gets noticed more than a good car.