Home > Dyno Results, General Info > Pure Tuning Evo VIII-16G / IX-16G / FP-Green Turbo Comparison

Pure Tuning Evo VIII-16G / IX-16G / FP-Green Turbo Comparison

January 27th, 2009

EvoIX-16G

This comparison was done to show the difference in the OEM turbo options and a good initial upgrade for the EvoVIII and IX. The CT9A chasssis came with a few different turbo configurations with a large improvement in 2006 with EvoIX the MHI-9-Turbo. Shortly after the 9-Turbo release Forced Performance took it another step furthur by offering their 9-Green Model using the 9-Turbo housings making it a direct bolt-on upgrade.

MHI Evo VIII (8-Turbo) used in test:
TD05HRA-16G6-10.5T / approx. 580cfm (unofficial flow rating)

MHI Evo IX (9-Turbo)
TD05HRA-16G6C-10.5T / approx. 610cfm (unofficial flow rating)
The 9-Turbo came with a few improvements over the 8-Turbo for 2006 when it was released making it the largest Mitsubishi turbo used on the 4G63.

MHI 9-Turbo Improvements:
- Larger Compressor Cover w/increased A/R
- Large 10.5cm2 Hotside (single flapper)
- Improve actuator design

FP-Green:
A hybrid turbocharger made by Forced Performance useing the new developments by MHI (Mitsubishi Heavy Industries) and stuck a larger compressor and turbine wheel in it increasing the flow to around approx. 660cfm. They do rate the turbo at 700cfm, but from what we have tested it seems to fall a little short of those numbers.

1st Graph Evo VIII w/FP-Green vs Evo IX w/Stock Turbo
Run 1:
Evo IX w/ Stock Turbo
Stock Motor w/Cosworth Cams
Stock Intake Manifold
Stock ECU tuned by Pure Tuning
Stock Throttle Body
No Porting on anything
Peak Boost: 26.6psi
Fuel: 100oct

Run 2:
03 Evo VIII w/ FP-Green
Stock Motor w/HKS Cams
Magnus SIM wo/ Velocity Stacks
AEM EMS (no MAF) tuned by Pure Tuning
Stock Throttle Body
No Porting on anything
Peak Boost: 26.3psi
Fuel: 110oct

All the customers that have come in with the FP-Green all run higher boost levels (over 25psi) so I don’t have a great depiction of a lower boost level FP-Green.

So yes the Evo IX has variable timing, but the Evo VIII does have an AEM without the MAF and a Magnus SIM that we have shown to make more power than the stock intake manifold toward the last third of the powerband.  The Evo VIII was also running 4psi more by redline than the EvoIX.  I don’t think there will be any arguments here.

I also want to add that the FP-Green will never spool faster or the same as a 9-Turbo or 8-Turbo as I have seen some people state that it will. I can assure you it won’t!

Graph2 Evo IX w/Stock Turbo vs Evo IX w/FP Green
Run 1:
Evo IX w/ Stock Turbo
Stock Motor w/Cosworth Cams
Stock Intake Manifold
Stock ECU tuned by Pure Tuning
Stock Throttle Body
No Porting on anything
Peak Boost: 26.6psi
Fuel: 100oct

Run 2:
Evo IX w/ FP-Green
Stock Motor w/ Cams (can’t remember at this moment which ones)
Stock Intake Manifold
Stock ECU tuned by Pure Tuning
Amplified Ignition
Peak Boost: 27.1psi
Fuel: E85

You can see in this graph there is a substantial improvement in power from 4000-6300rpm, but because the FP-Green equipped Evo9 is running E85 it will naturally make a little more power.  The fuel choice isn’t all the increase but is defiantly some of it.  The Fp-Green equipped Evo is also running slightly higher boost which can also contribute to some power increase.
I would say the FP-green is worth some power over the MHI-Evo9 Turbo, but not enough to justify its expense.
Evo VIII owners should consider the FP-Green as a substantial improvement over the 8-Turbo, but not over the 9_turbo. I would say the next turbo upgrade past a Evo9 Turbo would be the FP-Red if staying with a factory based bolt-on turbo, but I would jump into a Twinscroll BorgWarner S200 or Garrett 30R getting the spool of an FP-Green but the power of exactly what was used.

Graph 3:  Evo VIII with 8-Turbo (10.5) vs 9-Turbo
05 Evo VIII
Stock Motor
Stock ECU
Stock Intake Manifold
24psi
93oct

This is a direct comparison of the MHI 8-Turbo vs the MHI 9-Turbo at the same boost on the same car.

Thanks for reading.

Dyno Results, General Info

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