nruzic
New member
Hampton, VA
- Aircraft Year
- 1992
- Aircraft Type
- 114B/115
- Reg Number
- N114PW
- Serial Number
- 14542
Re: 114 Hot Shot
Ian The best tubocharged engines installations always design with an inter cooler. The compressor driven by the turbine requires quite a bit of power (over 20HP) to compress the air at ait (atmospheric Pressure at 18,000 ft is 1/2 SL) to manifold pr of 30 in.
This work done in compression comes with losses so heats the air while compressing it. The compressor discharge air is above 200F. The effect of outside air temp even though it may be below freezing thus is marginal in the teens perhaps even in Canada or Alaska.
As you state an intercooler helps in allowing more mass flow due to cooler charge density beyond that the cooler charge air provides detonation margin.
If you like I can throw in a post with typical 260 HP turbo supercharger work done and estimated charge temp numbers.
Ian The best tubocharged engines installations always design with an inter cooler. The compressor driven by the turbine requires quite a bit of power (over 20HP) to compress the air at ait (atmospheric Pressure at 18,000 ft is 1/2 SL) to manifold pr of 30 in.
This work done in compression comes with losses so heats the air while compressing it. The compressor discharge air is above 200F. The effect of outside air temp even though it may be below freezing thus is marginal in the teens perhaps even in Canada or Alaska.
As you state an intercooler helps in allowing more mass flow due to cooler charge density beyond that the cooler charge air provides detonation margin.
If you like I can throw in a post with typical 260 HP turbo supercharger work done and estimated charge temp numbers.