View Full Version : Need help reading compressor maps...
rhfosu
12-17-2019, 08:42 AM
I currently have a gt2871r, and I am considering a gen 2 gtx2860r for quicker spool. However, an EFR6758 has popped up, and I am tempted. I am looking for quicker spool, and I cannot read compressor maps very well. Looks like the EFR flows more up top, and the turbine doesn't spin nearly as fast, but I don't know how that correlates to revs. Looking for the best possible option for power down low. Any help reading these maps would be appreciated.
https://i.imgur.com/D6fNrbF.jpg
https://i.imgur.com/OQUopK3.jpg
IronAudi
12-17-2019, 10:37 AM
Simple search will show you what you need to know. Its not hard.
https://www.enginelabs.com/engine-tech/power-adders/understanding-compressor-maps-sizing-a-turbocharger/
rhfosu
12-17-2019, 10:45 AM
Simple search will show you what you need to know. Its not hard.
https://www.enginelabs.com/engine-tech/power-adders/understanding-compressor-maps-sizing-a-turbocharger/
I read this exact article before posting this. I am simply not smart enough to translate that into the real world.
rhfosu
12-17-2019, 10:49 AM
Simple search will show you what you need to know. Its not hard.
https://www.enginelabs.com/engine-tech/power-adders/understanding-compressor-maps-sizing-a-turbocharger/
Best I can tell, the EFR is most efficient flowing 25-35 lbs/min, and the gtx is most efficient flowing 20-30. Garrett spins way faster though, which means hotter. I just don't know enough.