fromWRXtoEVO

iTrader: (18)

Hi,

I am currently searching a lot to upgrade my current setting. My idea was to get a bit more boost and flow out of the stock turbo. I heard that Forced Performance sells the titanium shaft with 33% less inertia and much better spool up.

Has anyone try putting the 18g Mitusbishi wheels on the stock TD05HR EVO 8MR turbo?

I absolutely don't want a turbokit, I want to improve my current turbo so, do you guys think that I should remove my turbo and send it to a place for porting and polishing plus fitting it with the lighter titanium wheels/shaft?

Is there any direct bolt on that can provide me a awsome spool up with better top end?

I use to have a WRX with a FP18G and tons of other upgrades, going with that turbo on my WRX was indeed the bigest mistake of my life, the car was extremely laggy and by adding the FP18G turbo plus UTEC plus PE650ccInjectors plus fuel pump and full dyno and tunning I only improved .5 seconds at the track(not worth to me) .

My current mods are:

HKS 264/264 cams
Works 3" Downpipe
Works 3" cat
Greddy EvoII 3" cat -back
Halman RXkit MBC
Power Agency Air Filter
Dynoflash Custom road tunning

Please help. Thanks!!

DEV0LUTI0N

You might already have a ti shaft...did you check

dizzigital

iTrader: (5)

looks, it's Mr. BOOYAKA.

bbbwrx

iTrader: (10)

The MR shouldn't have a TI shaft. I believe the only upgrade from the 03 turbo is the 10.5 hotside

That is the problem with the EVO there are not any real easy bolt on turbo upgrades like the Subys. Your best option to keep stock spool and get a little better top end is to get the TME turbo

Ben

DEV0LUTI0N

...the dude is back! Change clothes! BOOYAKA is Everywhere like savoir fare!



and once again, one time for dizzie-bone...in da ********in house!
BOOYAKA

DEV0LUTI0N

I knew I saw some crap about titanium parts in the MR turbo....**** it

Evolution 8
Turbo = TD05HR-16G6-9.8T (GSR / USDM E8)
TD05HRA-16G6-9.8T (RS/RS2)
Nozzle Area (cm2) = 9.8
Turbine = USDM EVO 8 & JDM GSR =Inconel (steel alloy),
RS/Rs2=Titanium alloy.
Compressor = Aluminium, 68mm wide


Evolution MR aka "8.5"
GSR = TD05HR-16G6-10.5T or TD05HRA-16G6-10.5T (Ti Alloy option)
RS = 6MT:TD05HRA-16G6-10.5T or 5MT:TD05HRA-16G6-9.8T

Nozzle Area (cm2) = 10.5 or 9.8(RS-5speed)
Compressor = Aluminium, 68mm wide


All Evo 4-8 Turbos are twin scroll designs meaning that the engines exhaust is divided into two channels (see first pic). As the engine exhausts in pulses.. its supposed to result in quicker spooling. From the Evo 4 onwards, the Turbo spins in the opposite direction, i.e. Anticlockwise (hence the R in the turbo name). The Titanium Alumnide alloy used in the RS/RS2 and some GSRS (factory option) has less inertia and thus spins up around 500 rpm sooner. These Titanium turbos can be indentified by the A in their name.

HiHeatEVO

iTrader: (4)

injectors and some alky injection with a reflash...i think would be the best power gainers without changing turbo's.