The Baja Series receives a 1.75-inch lift upfront thanks to TRD springs wrapped around Bilstein shocks. The shocks are based on Bilstein's high-end 9100 Series dampers and use a 60-mm piston (compared with 32 mm for the stock Tacoma 4x4). The new front suspension increases wheel travel from 8 inches to 9.25 inches. It turns out the limiting factor for more suspension movement is the upper ball joint, and finding a better one would have cost too much time and money, according to the team. "We built this system so it could grow with the customer," Zwillinger says. So an owner could, for example, buy a pair of aftermarket upper A-arms that allow even more front-wheel travel, and then have the Bilsteins modified to match. The front bump stops are slightly shorter to allow for the increase in jounce (compression) travel.
In the rear, the TRD team selected the three-leaf (plus one overload leaf) spring pack used in Tacoma towing packages, which provides a 10-mm increase in rear ride height. The damping comes form Bilstein 5160 remote reservoir shocks that have been custom-valved. The team did much of the suspension testing and tuning at the Ocotillo Wells State Vehicular Recreation Area (SVRA) in California and had Bilstein's shock-tuning truck on hand to make on-demand adjustments to the valving. "We did at least three or four rebuilds on the rear shocks before we got it correct," says Zwillinger, "but basically we dialed-in the lightest tuning possible that would meet our durability requirements". The rear suspension package increases wheel travel from 8.5 inches to 10 inches—mostly in rebound (droop) travel. And to allow for the increase, the rear brake lines have been lengthened slightly with a bracket. Aside from the radical graphics package and TRD wheels wrapped with BF Goodrich all-terrain tires, the Tacoma Baja gets a slight bump in power from a TRD cat-back exhaust system. Engineers say the increase is slightly less than 10 hp. Tech Tidbit:The 3-inch-diameter front coil springs are manufactured by Eibach for TRD. They are off-the-shelf race units rated at 650 lb/in. That's slightly softer than the stock springs. Driving Character: Lifted pickup trucks tend to ride more harshly than their stock counterparts. The taller springs and higher spring rates, combined with off-road shocks that are way too stiff, make life unpleasant. But the Baja wears such a mild suspension lift and is tuned so well that it's only a bit firmer than stock. In fact, the sport packages offered on cars these days tend to ride rougher than this truck does. You feel a little more road texture in the Baja than you might in a stock truck. But at higher speeds, the Baja's suspension really smooths out the road. And this is true off-road as well.Stay updated with Toyota Sunnyvale events, exclusive offers, coupons, and much more.
Tuesday, March 20, 2012
2012 Toyota Tacoma TRD T/X Baja Series Test Drive
On Sale Date: May Price: $32,000–$35,000 (est) Competitors: Nissan Frontier Pro4-X, Chevrolet Colorado Z71 Powertrain: 4.0-liter V-6, 236 hp; 266 lb-ft (sport mode) Estimated Fuel Economy (city/highway): 16/21 What's New: Toyota has had a capable and popular TRD off-road package on its Tacoma pickups since 1998. The grouping of parts, developed by the team at Toyota Racing Development (TRD) includes one essential component for slow-speed four-wheeling: a selectable locking rear differential. With it, the TRD package has made the Tacoma a solid four-wheeler. But according to Zach Zwillinger, product development engineer for TRD, Tacoma owners have been yearning for something more extreme. And the company had yet to develop a truck specifically aimed at West Coast Baja racing enthusiasts. "They were asking for a lifted Tacoma," Zwillinger says. But sliding a taller, special-edition pickup truck under the noses of the Toyota executives preoccupied with government safety regulations is a challenging task. Nevertheless in the fall of 2010, TRD began work on the project that would become the 2012 TRD T/X Baja Series. The Tacoma Baja Series is available only as a V-6 4WD Access Cab or Double Cab short bed, and only in red or black. You can choose between a six-speed manual or the five-speed automatic. It's tempting to describe this truck as Toyota's answer to the Ford Raptor, but that's not quite accurate. The Baja simply isn't that radical—think of this truck largely as a well-executed off-road suspension package.
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