compressor maps

[ryan george]

Looking for a compressor map for a TE62. Trying to understand where this turbo really makes power. Thanks in advance.

 

[RUQWKNF]

FWIW, compressor map for that turbo doesn't exist if it's from PTE or Limit Engineering. It was never done.

However, you can use the Turbonetics map of the T-62 compressor wheel to get you an idea of it's flow characteristics. One thing to remember is, the map dramatically changes when you change the compressor cover, and IIRC, the T-62 map was done with their 60-1 style compressor cover. (4" inlet, 2.5" discharge) Most TE-62 turbos that I remember, came with the TO4E style compressor cover. (3" inlet, 2" discharge)

The TE-62 starts making steam at around 18psi, and has a sweet spot of 22-28psi. It was rated to support 635-640 flywheel hp when pushed. Some have actually made more, but were pushing the limits of the rotating assembly. That is, if it's coupled with a P-trim turbine wheel. It was an older combination that some people liked, and some people hated. If it's a journal bearing and the motor is a 231-235 CI, you will need a 9" or 9.5" converter that will flash stall to around 3400-3500 to really make it scream from a dead stop punch. A 3000-3200 will spool it up, but not fast enough for my tastes. I like the car to rip from a dead stop punch and that typically takes a slightly higher stall converter.
HTH

Patrick

 

[ryan george]

FWIW, compressor map for that turbo doesn't exist if it's from PTE or Limit Engineering. It was never done.

However, you can use the Turbonetics map of the T-62 compressor wheel to get you an idea of it's flow characteristics. One thing to remember is, the map dramatically changes when you change the compressor cover, and IIRC, the T-62 map was done with their 60-1 style compressor cover. (4" inlet, 2.5" discharge) Most TE-62 turbos that I remember, came with the TO4E style compressor cover. (3" inlet, 2" discharge)

The TE-62 starts making steam at around 18psi, and has a sweet spot of 22-28psi. It was rated to support 635-640 flywheel hp when pushed. Some have actually made more, but were pushing the limits of the rotating assembly. That is, if it's coupled with a P-trim turbine wheel. It was an older combination that some people liked, and some people hated. If it's a journal bearing and the motor is a 231-235 CI, you will need a 9" or 9.5" converter that will flash stall to around 3400-3500 to really make it scream from a dead stop punch. A 3000-3200 will spool it up, but not fast enough for my tastes. I like the car to rip from a dead stop punch and that typically takes a slightly higher stall converter.
HTH

Patrick

Thanks Patrick, was hoping you'd respond. It's from Limit, and pretty new. I'm guessing the trim is the TO4E style you mention cause of the 3" in and 2" out. It's on a 231 motor. I've got a 3200 Precision 5 disc. No, it won't smoke them from a dead stop. Thanks again for the info. I was probably going to ask you how to read the map once I got it!