The Detroit Diesel Series 92 is a two-stroke cycle, V-block diesel engine, produced with versions ranging from six to 16 cylinders. Among these, the most popular were the 6V92 and 8V92, which were V6 and V8 configurations of the same engine respectively. The series was introduced in 1974 as a rebored version of its then-popular sister series, the Series 71. Both the Series 71 and Series 92 engines were popularly used in on-highway vehicle applications.

History The Series 92 engines were introduced in 1974. alternative HTML link Compared with the Series 71 engines from which they were derived, the Series 92 featured a larger bore of and an identical stroke of for a nominal displacement per cylinder of , from which the Series 92 derives its name.

While the basic mechanics of the 92 series indicated superior performance and durability, early prototypes were challenged by breakdowns resulting from the torque inherent in the design. Carl Kamradt, the senior engineer in Detroit Diesel Allison's E5, or Experimental Department, was responsible for working through the practical applications of the engine, resulting in the 92 Series becoming the favored choice for applications requiring high torque and dependability. Upon Mr. Kamradt's retirement in 1984, the E-5 division was eliminated as the 92 Series ran its course. In the 1980s and early 1990s, the Series 92 was used as a major bus engine in North America. It was also available for several other applications: Trucks, buses, motor homes, construction, fire trucks/apparatus, industrial equipment, several military vehicles, aircraft and marine applications.

The Series 92 left the market in the summer of 1995 and the four stroke Detroit Diesel engine Series 60 was introduced as a replacement.

Features and specifications 9.0 litre (V6), 12.1 litre (V8), 18.1 litre (V12) and 24.1 litre (V16) Power ratings ranging from Supported the DDECI, DDECII, DDECIII and DDECIV. Gear

Power output for selected models Family Model Torque Power 6V92 6V92 @ 1400 rpm @ 2100 rpm 6V92T @ 1400 rpm @ 2100 rpm 6V92TA @ 1300 rpm @ 2100 rpm 6V92TTA @ 1300 rpm @ 1900 rpm 8V92 8V92 @ 1400 rpm @ 2100 rpm 8V92T @ 1400 rpm @ 2100 rpm 8V92TA @ 1400 rpm @ 2100 rpm 8V92TTA @ 1400 rpm @ 1950 rpm 12V92 (two joined 6V92 engine blocks) 12V92 @ 1300 rpm @ 2100 rpm 12V92TA @ 1200 rpm @ 2100 rpm 16V92 (two joined 8V92 engine blocks) 16V92TA @ 1200 rpm @ 2100 rpm

Power output specifications (6V92) @ 1200 rpm; 253 horsepower governed at 2100 rpm @ 1200 rpm; 277 horsepower governed at 2100 rpm @ 1300 rpm; 300 horsepower governed at 2100 rpm @ 1300 rpm; 335 horsepower governed at 2100 rpm

Power output specifications (8V92) @ 1400 rpm; 360-435 horsepower governed at 1965-2100 rpm

Model number The model number indicates the basic configuration of the engine. The model designator consists of the number of cylinders (6, 8, 12, or 16), the block layout (V), engine series (92), and a lettered suffix which provides information about forced induction (T for turbocharged, A for aftercooled), so for instance, an 8V92TA designates a Series 92 V8 engine that is turbocharged and aftercooled.

+ 8 08 3 - 7 0 00 Model designator Number of cylinders Application designation  Basic engine arrangement and drive shaft rotation Design variation Specific model number 8 = Series 92, vee arrangement  2 = Marine 3 = LC (left hand rotation, starter on right bank) 0 = 4 valve head   3 = Industrial F-F 4 = LD (left hand rotation, starter on left bank) 3 = Turbocharged without aftercooling 5 = Generator 7 = RC (right hand rotation, starter on right bank) 4 = Turbocharged and aftercooled 7 = Vehicle F-F 8 = RD (right hand rotation, starter on left bank) 5 = Customer special engine 8 = Vehicle F-F  7 = Constant horsepower (TT)   8 = Constant horsepower (TTA, California & Federal Certified)

Notes

Detroit Diesel (2 cycle) common model and suffix codes Model codesL Low profileV V-blockN Needle Unit Injectors, four exhaust valves (per cylinder)T TurbochargedTA Turbocharged Aftercooled (JWAC Jacket Water Aftercooled ) TAC Turbocharged Aftercooled California Certification (JWAC Jacket Water Aftercooled ) TT Tailored Torque (Fuel Squeezer)TTA Tailored Torque Aftercooled (Fuel Squeezer Plus) (JWAC Jacket Water Aftercooled ) TI Turbocharged Intercooled TIB Turbocharged Intercooled Bypass Blower

Competing power plants Detroit Diesel 6-71 (inline) Detroit Diesel 8V71 Caterpillar 3406 Cummins L10 International HT530 Cummins 6CTA8.3 Detroit Diesel Series 60

See also List of Detroit Diesel products

References

External links

Video of the GMC RTS Bus