1996 Dodge Viper RT/10 Looks to the Future
From the December 1995 issue of Car and Driver.The Viper is the New Chrysler Corporation’s attempt at atonement, at making up for the sins it committed against cars—all those bogus wire wheel covers and limp shock absorbers and padded-vinyl roofs—during the reign of Lee the Imperious. And by the precise calculations of our test department, each Viper built since the 1992 intro cancels out 817 K-car New Yorkers. HIGHS: The way other cars let you go first, prodigious g-forces, sunny days.A lot of “nice” Chryslers were inflicted on the market in those years (more than it could stand, in fact), but the Viper goes about the work of offsetting them with a swaggering gusto. There’s not a nice fiber in its glass body. It’s so ornery it won’t even cancel its own turn signals. “Knife-in-the-back handling,” we said in our last test (“The Supercar Olympics,” July 1995). “Big, crude, deafening, and something of a cartoon,” we said. “Villainous.” (We don’t hold back once we get the adjectives flowing.) Now we learn that particular Viper was having a bad suspension day—month, actually—during our last test. Wheel alignment was way wrong. High-grip tires don’t like being pointed in contradictory directions. For the record, when we phoned Chrysler before the test to say the suspension had passed through independent and was well on its way to defiant, we were told: “They’re all like that.” Anyway, that was then and this is 1996 and the Viper has undergone, for the new year, its first change of underwear since its 1992 introduction. It has a new frame, new suspension, new tires and, what it really needed all along, more horsepower. Surely the New Yorker cancellation rate will be much enhanced by such extensive reengineering. Knowing how you care about such things, we set up an all-Viper comparison—the exact same test car of last summer, fresh from alignment therapy, versus a pre-production 1996 model. It’s easy to spot the model-year differences on the outside. There are no side exhausts on the new car, racing stripes now appear on both white and black cars, and wheels are different—they’re painted an astonishing yellow on red cars. Inside, the black cockpits are spiced up with vividly colored leather on the wheel rim, shift knob, and brake handle—it’s bright blue on white cars, lipstick-red on red cars. “I won’t go into the politics on that,” said engineer Pete Gladysz, who is chassis and design manager on the Viper Project. From the driver’s seat, it’s easy to spot differences, too. The new car’s ride is less punishing, the cockpit is much quieter now that exhaust goes out behind, the steering doesn’t squirm as much on truck-worn pavement, and the brake feel is more conventional—it’s very good too, thanks to Chrysler ending its infatuation with a quirky booster that gave remarkably short pedal travel instead of good modulation. “We thought it felt like a Ferrari F40,” Gladysz explains. Gladysz says most of the 1996 changes were made in anticipation of future model needs and to comply with regulations. The first of the future models is the coupe, due in late spring. Inevitably, it will be heavier. So the engineers went looking for offsetting weight reductions to build into the basic car, and they found enough to lighten the roadster by 90 pounds (our test car, a prototype, is about 60 pounds overweight). Logically, the less drafty, less leaky coupe will encourage driving on colder, wetter days, so new tires were sought. “I didn’t say all-weather tires,” Gladysz reminds. On the regulatory side, lower noise standards are coming in Europe, and new emissions requirements are coming in the U.S., occasioned by the on-board diagnostics OBD II rule. For both noise and OBD II, the side exhausts had to go. Everybody wins: the new system pipes the noise far behind the cockpit and away from the occupants’ ears, and it improves the exhaust note while reducing back-pressure. Output rises 15 hp as a result. LOWS: Interior hospitality of a grizzly’s den, assembly details that look homemade, rainy days.Weight reduction also brings gains. The frame loses 60 pounds while improving 20 percent in torsional stiffness. New suspension arms and knuckles are now aluminum, and the wheels are slightly lighter. Together, those changes reduce unsprung weight substantially. Front-suspension geometry remains as before, but the rear roll center was lowered to reduce tire scrub—to cut down on self-steering in the truck ruts. At both ends, shocks are new and their attachments were moved closer to the lower ball joints for better control of small suspension movements. Powertrain changes are numerous as well. Cooling-system capacity is increased, and the clutch, differential, and half-shafts have been upsized for more torque (Gladysz alludes to a future need for this extra beef, without confirming the limited run of high-output Vipers we expect in time for racing season). A power-steering cooler was added. Tire sizes remain as before, but the carcass construction, tread pattern, and compound reflect an entirely different approach to performance in these new-to-the-U.S. Pilot SX Michelins. Contrary to Gladysz’s prediction, we find them slightly less grippy on the skidpad than the Michelin XGT Z tires of the 1995 car on hand for comparison: 0.97 g versus 1.00 g. They seem to understeer more, too—for sure, they require larger steering angles at any given lateral force. And they make a shrill howl at the limit.That’s the bad news. The good news is that the car behaves better on them in every other way. Along with the suspension changes, they vastly improve handling. When cornering at the limit, the new Viper no longer seems balanced on a knife edge. It’s more gradual. The tail now slips into a drift angle. Even with alignment properly set, the 1995 car is still snappish—it’ll bite if you change power or steering imprudently near the limit. The new version is far more tolerant. You can work with it, make corrections, adjust your path, even as you approach the hairy edge. Proof of this new attitude shows up during hot laps. At the Chrysler proving grounds road course, our man Don Schroeder drove a six-lap session in each car. His best time in the ’96 was 1:17.47, with a best-lap-to-worst-lap variation of only 0.08 second. In the old car, he managed one lap in 1:17.32, but the best-to-worst variation exceeded two seconds and cumulative time was far behind. Heard from trackside, the 1995 exhaust at full power hisses like a shot-down blimp, seriously uncool compared with the disciplined roar of the new one. On the road, the difference between new and old is no less dramatic. Tire noise on textured roads used to be deafening; now it’s merely excessive (like everything else about the Viper). Ride is much improved too, enough for us to upgrade our rating from the previous “terrible” to “bad.” Perhaps because of the additional frame stiffness, the body is less clattery. Gladysz says the new tires are significantly better in braking. Certainly they team happily with the new booster to shorten stopping distances from 177 feet in the realigned ’95 car to 163 feet. Pedal feel is much better too, which is particularly important because the Viper does not offer ABS. More Viper Reviews From the ArchiveThe Viper’s bountiful torque “flat”—the curve, like Nebraska, is flat as far as the eye can see—gives a peculiarly constant acceleration, sort of a civilian substitute for a Saturn booster. The extra 15 advertised horses were definitely on the job the day we tested the two cars back-to-back—0 to 60 mph improves by a tenth of a second to 4.1 seconds, the quarter-mile quickens by a tenth of a second and 1 mph to 12.6 seconds at 113 mph, and top speed rises to 173 mph from 167. A down-to-weight production car should be slightly quicker. VERDICT: A raw-meat roadster for the folks who don’t care what anybody says.While the changes for 1996 add up to a more powerful and less belligerent machine, the Viper remains outrageous by intent: the cockpit smells like fiberglass, and its weather protection stows in the trunk. The big hospitality breakthrough for 1996 is sliding-glass technology for the side curtains. That, together with the less obstreperous road behavior, adds up to a better Viper, but no one will confuse it with a “nice” car. SpecificationsSpecifications
1996 Dodge Viper RT/10Vehicle Type: front-engine, rear-wheel-drive, 2-passenger, 2-door convertible
PRICE
Base/As Tested: $61,975/$66,045Options: hard top with sliding side curtains, $2500; air conditioning, $1200; luxury tax on options, $370
ENGINEpushrod 20-valve V-10, aluminum block and heads, port fuel injectionDisplacement: 488 in3, 7990 cm3Power: 415 hp @ 5200 rpmTorque: 488 lb-ft @ 3600 rpm
TRANSMISSION6-speed manual
CHASSIS
Suspension, F/R: control arms/control armsBrakes, F/R: 13.0-in vented disc/13.0-in vented discTires: Michelin Pilot SXF: 275/40ZR-17R: 335/35ZR-17
DIMENSIONS
Wheelbase: 96.2 inLength: 175.1 inWidth: 75.7 inHeight: 44.0 inPassenger Volume: 49 ft3Trunk Volume: 5 ft3Curb Weight: 3484 lb
C/D TEST RESULTS
60 mph: 4.1 sec100 mph: 9.8 sec1/4-Mile: 12.6 sec @ 113 mph130 mph: 16.9 sec150 mph: 29.0 secRolling Start, 5–60 mph: 4.6 secTop Gear, 30–50 mph: 9.3 secTop Gear, 50–70 mph: 9.1 secTop Speed (drag ltd): 173 mphBraking, 70–0 mph: 163 ftRoadholding, 300-ft Skidpad: 0.97 g
C/D FUEL ECONOMY
Observed: 13 mpg
EPA FUEL ECONOMYCity/Highway: 13/21 mpg
C/D TESTING EXPLAINED More