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Tampilkan postingan dengan label japanese import cars. Tampilkan semua postingan

Jumat, 24 Februari 2012

Tips for customizing import tuners

So you’ve tacked a three-foot-high metal bar onto the back of your trunk, spent $200 on clear-colored taillights and another $600 on “VTEC” stickers, rented The Fast and the Furious three times, and you say your car still doesn’t go any faster? We’re just as baffled as you, but we have a few pointers that might help. 1. Even if the point is to build your own personal Import Tuner, it’s critical to start with a decent foundation. All the lowering, stiffening, and boosting doesn’t mean half as much on a car that can’t put it to good use, and there are plenty of cheap, good platforms out there. - What’s popular isn’t always best. Sure, you could become Slammed Honda Import Car Owner #16,384, and you’d be getting a reputable car with one of the world’s most tuner-friendly engines. You’d also have to live with marginal low-end torque (not as easy to upgrade as horsepower), and unless you dip back into the 1990s, wouldn’t be getting that car’s double-wishbone front suspension, one of the things that made it special. Like most cars, it’s also front-wheel-drive, capping a low glass ceiling on the usefulness of whatever extra power you squeeze out of that little engine. - Get a rear- or all-wheel-drive car if you plan to go fast. One set of wheels can only do so much, and overpowered front-drivers simply have lower handling skills all around, not to mention feeling slow-witted and less fun even when driven normally. And wouldn’t you like to give drifting a try? Some recent RWD cars that sold for less than $30,000: Mazda Miata, Toyota MR2, Ford Mustang, Nissan 350Z, Mazda RX-8, Chevy Camaro, Pontiac Firebird. - Lighter is better. Mass is the enemy of all vehicle dynamics: acceleration, braking, roadholding, turning, etc. Starting light is its own reward, and makes every future mod count that much more. 2. Now for the upgrades themselves. - The single most beneficial: a turbocharger seen modified on japanese Import Cars. Assuming your first wish is to go faster (with the same engine), this exhaust gas-recycling device crams extra air into your engine at higher engine speeds, boosting output of both horsepower and torque. Superchargers achieve the same basic effect through less-efficient means (since it relies on the engine for power). - After fortifying your engine is the time to worry about intake and exhaust mods (better cams, headers, air filters, mufflers, etc.) High-performance / high-strung engines are better equipped to enjoy the benefits of better breathing. - As far as suspensions and lowering, feel free to go as hard as you can handle. But build properly, making sure your shocks are at least as aggressive as your springs, since the point of the former is to control the motion of the latter and you don’t want your suspension constantly hitting its bump stops. And don’t cut your springs! - Bigger wheels benefit handling, but there are drawbacks: harder ride, more unsprung mass, more work for your shocks, and lowered resistance to pothole damage. Depending on how much torque you have on tap, too much traction can also make it hard to provoke wheelspin during launches, damping some fun and delaying the acceleration process. As a rule of thumb, don’t fit a street car with any diameter past the teens, or with tires that have an aspect ratio of less than 40. - Speaking of tires, no one brand is best, and model lines change names all the time. Just stay away from low-performance all-season tires (anything with “M+S” stamped on it) and try to stay with tires with a speed rating of H (130 MPH) or higher. After H comes V, Z, and Y. Before H comes R, S, and T. Yes, it doesn’t make sense. - As far as brakes go, bigger rotors help, but also only to a point. Braking depends just as much on tire traction as the brakes themselves, and again, going bigger also adds more unsprung mass. Instead, focus on making bum brakes better, i.e. swapping from rear drums to discs (better heat resistance, pedal feel, and stopping ability), or swapping from solid discs to vented ones (better cooling). Brembo is the standard in aftermarket brake brands. - Fitting a new set of gears and/or a new final-drive ratio can boost torque and make your engine a little more responsive, at the cost of a little gas, more engine noise, and lowered top speeds (since you run into the redline earlier). - If all you want is more low-speed muscle (like many motorists), all the tiny engine tweaks in the world won’t help you. Power and torque are different (though related) commodities; what you need is a car with a bigger engine. - Unless you have a rear-drive car and drive at triple digits, stay away from spoilers. Specifically, stay away from wings – any high-flying bar that isn’t 100% attached to the body. At low/medium speeds, their main contribution is drag, and on front-wheel-drive cars, the rear downforce they add is actually counterproductive, causing even more understeer than usual. Spoilers (i.e. the attached-to-the-body kind that you might see on an old Lexus SC400 or V6 Pontiac Firebird), on the other hand, actually improve airflow and are slightly useful.

Kamis, 31 Maret 2011

Lifestyles of import tuner enthusiasts

Fast cars, fast women, and fast money? You must be thinking of Hot Import Nights, the constantly-on-tour event with chromed-out rides and non-stop hip-hop that’s more interested in showing skin than sheetmetal. And for a whole bunch of people, it pretty much stops there. It’s a safe bet that a good three-quarters of the customized cars roaming the streets are of the all-show-and-no-go kind, most commonly a hopped-up economy car with wheels that scrape its fenders meant to give off the image of speed. Luckily, there’s a select minority that actually prides themselves on their ability to make Import Car more interesting in any number of ways – many of whom have high technical proficiency, take the hobby seriously, and hate being grouped with the former camp. First, there are events in which anyone can participate but where nimble-handling Import Car do best, such as Autocross. Usually held on Sundays (not for free), anyone is welcome to take their best shot at running what they brung through a maze of orange cones and compete for the best times. Compact Honda Import Car arrive in droves at these things. Obviously, some also race face-to-face. Obviously, no one could get away with the giant organized illegal metropolitan street races you see in movies, and less emphasis is put on drag races (that’s more of an American muscle car thing) but competitions do go on at racetracks and spontaneous challenges happen on the street all the time. But the import scene itself also seems to be inventing new events. After all, the culture, like the majority of the cars themselves, came from Japan, and some of it is spilling over. The most recent and widespread of them all is drifting, a subjectively-judged competition event where drivers compete to see who can boot their car sideways around a track in the most interesting manner. Entire sets of tires easily go bald in a day, and the amount of power isn’t nearly as important as the linearity and controllability. Anyone without a cheap, light, stick-shifted rear-wheel-drive car is toast, and the talent of certain makes and models really springs to the surface. Those of you who’ve been getting ridiculously large offers for that 1986 Toyota Corolla hatchback rusting away in your driveway now know why. Helping to expand the popularity is an entire anime series dedicated to the sport called Initial D, obviously popular with the younger set. Much higher exposure will soon come in the second sequel to that lucrative B-movie The Fast and the Furious, this time titled Tokyo Drift and set for a summer 2006 release.

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