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Top : Buick Resource : Production Information : 1990's :
1998 Riviera

1998 Buick Riviera Specifications

3800 Series II Supercharged V-6
3800 Series II
Supercharged V-6
Type90o V-6
Bore and Stroke (in.)3.80 x 3.40
Piston Displacement (cu. in.)231
Cylinder Head and Block MaterialCast Iron/Cast Iron
Compression Ratio8.5:1
Net Horsepower @ Engine rpm240 @ 5200
Net Torque (lbs-ft) @ Engine rpm280 @ 3600
Recommended FuelUnleaded Premium
Fuel ManagementSupercharged Sequential-Port Fuel Injection
Oil Capacity (qts)4 (5 w/filter)
EPA Fuel Economy Rating, City/Hwy (Projected)18/27
Suspension
Front Suspension TypeMacPherson Strut
Shock Absorbers, Front
Deflected Disc Strut
Stabilizer (mm)
28 mm - Tube
Rear Suspension TypeSemi-Trailing Arm
Shock Absorbers, Rear
Twin Tube with Electronic Level Control
Transaxle
Automatic Transmission with Overdrive
TypeFour-Speed with Electronically Controlled Capacity Clutch
Selector PatternPRND321
Gear Ratio (each times converter ratio)
First
2.92
Second
1.57
Third
1.00
Fourth
0.71
Reverse
2.39
Final Drive Ratio
2.93
CoolingLiquid
Capacity - Dry (pts)14.8
Chassis
Chassis/BodyIntegral Frame Body
Body MaterialSteel
Steering
Steering Gear TypeRack-and-Pinion
Overall RatioVariable 15.5:1 to 13.5:1
Number of Wheel Turns (stop to stop)3.15
Turning Diameter (ft) (curb to curb)39.1L/39.1R
LinkageRear
Tie Rods, Number2
Parking Brake
ControlFoot Pedal
Operated OnRear Brakes
OperationPush-to-Set-and-Release
Release LocationLeft-Hand Side Under Instrument Panel
Major Changes for 1998
Powertrain/Chassis/Suspension:
New standard engine: 3800 Series II Supercharged V-6
Fuel tank capacity revised to 18.5 gallons
Exterior:
Four new exterior colors: Twilight Blue Metallic (27), Midnight Blue Pearl (28), Emerald Green Pearl (38), Slate Green Pearl (61)
Three new stripe colors: Codes 43A, 46A, 58A
Interior:
Two new interior colors: Medium Blue (27) and Light Autumn Green (42)
Next Generation Air Bags
New Standard Equipment:
4T65E HD four-speed overdrive transmission with electronically controlled capacity clutch
Leather bucket seats with full-length operating console
P225/60R16 Eagle touring blackwall tires and 16" aluminum wheels
New Optional Equipment:
New OnStar service is an available dealer installed option (OnStar readiness - standard)
Heated passenger seat (part of A43 option)
Passenger seat includes power lumbar
P225/60R16 Michelin steel-belted, radial-ply, all-season blackwall tires
Product Improvements:
New front-and rear-speed sensors
New onboard refueling vapor recovery system
Enhanced evaporative emissions
Revised strut tuning for improved ride
Revised cradle mounts for improved isolation
New quarter-turn gas cap for improved ergonomics
OBD II enhancements
Brakes
Power Brake TypePower Four-Wheel Disc
Anti-Lock System
Self-Adjusting FeatureStandard
Hydraulic System TypeProportioning
Effective Area Total (sq. in.)40.9
Gross Lining Area Total (sq. in.)52.7
Swept Area Total (sq. in.)397.9
Rotor Diameter (in.) (F/R)11.85/10.94
Rotor Thickness (in.) (F/R)1.26/.43
Rotor Material and Type (F)Cast Iron - Vented
(R)
Cast Iron - Solid
Brake Lining Material
Front and Rear
Nonasbestos Organic
Front Lining
Outboard (in.)
4.96 x 1.85 x .50
Inboard (in.)
4.96 x 1.85 x .50
Rear Lining
Outboard (in.)
3.57 x 1.33 x .35
Inboard (in.)
3.57 x 1.33 x .35



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