Power Solutions International 8.8L V8
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| Power Solutions International 8.8L V8 | |
| Manufacturer: | Power Solutions International |
| Introduced: | 2015 (on IC Bus CE Series) |
| 2019 (on Thomas Saf-T-Liner C2) | |
Power Solutions International's 8.8L V8 engine manufactured by Powertrain Integration for use on Freightliner C2-based school buses, IC Bus CE Series school buses, as well as other industrial applications.
The 8.8L V8 is designed to operate on either gasoline or liquefied petroleum gas (LPG), also known as "propane autogas".
History
In 2015[1], the 8.8L V8 began powering IC Bus CE Series popane-fueled school buses. In 2018[1], the engine was further applied to gasoline-powered CE-Series school buses.
In 2019[2], PSI and Freightliner began offering the 8.8L V8 on a propane-fueled variant of the Thomas Built Buses Saf-T-Liner C2, as well as the Freightliner S2G chassis.
Construction
The 8.8L V8 engine features a cast iron, non-siamese bore engine block, cast iron cylinder heads, cast aluminum intake manifold, cast stainless steel exhaust manifold, forged steel crankshaft & connecting rods, and electronic throttle control. If propane-fueled, a BiPhase LPEFI® (Liquid Propane Electronic Fuel Injection) fuel system is equipped.
Specifications
Gasoline 8.8L V8
| Engine displacement |
Years | Cylinders | Cylinder bore | Piston stroke | Compression ratio | Maximum RPM | Power Output | Torque Output |
|---|---|---|---|---|---|---|---|---|
| 8.8L (537 cu. in.) | 2015-Present | 8 | 4.35" (110.5mm) | 4.50" (114.3mm) | 9.1:1 | 7100 (no load) | 265hp @ 2600rpm | 548lb-ft @ 1800rpm |
Propane 8.8L V8
The propane variant of the 8.8L V8 is identical in size, ratio, and max RPM. Primary difference in a slightly higher power and torque output.
| Engine displacement |
Years | Cylinders | Cylinder bore | Piston stroke | Compression ratio | Maximum RPM | Power Output | Torque Output |
|---|---|---|---|---|---|---|---|---|
| 8.8L (537 cu. in.) | 2018-Present | 8 | 4.35" (110.5mm) | 4.50" (114.3mm) | 9.1:1 | 7100 (no load) | 270hp @ 2600rpm | 565lb-ft @ 1800rpm |
References
- Power Solutions International's 8.8L V8
- 2018 IC Bus CE Propane Sell-Sheet
- PSI 8.8L Gasoline On-Road Engine Operation and Maintenance Manual
- Navistar Learning; 2015 PSI 8.8L LPG Engine Overview (Caution, Drive-by Download)
- Navistar Learning; 2018 PSI 8.8L Gasoline Engine Overview (Caution, Drive-by Download)
- ↑ 1.0 1.1 PSI, Navistar “The Power of Choice”;Power Solutions International; 5 November 2019
- ↑ PSI 8.8-liter Propane Engine Powers New Thomas Built bus;Power Solutions International; 5 November 2019