My turbo is on its way and the Full-Race kit was just ordered today with a slew of other goodies. Ended up going with the Turbosmart twin port WGA and a 4 port BCS. Something tells me I should probably get the speed sensor kit as well.

Still need a motor to bolt it all to though...

 

What spring pressure are you going to run in the wga? I'm going to be using a 3-port and turbosmart single port with 23psi springs, I think it should be plenty for me. The speed sensor is a good idea if you want to max the turbo out.

 

I'm going with a 20psi stack. In doing my research I read that the twin-port WGA can control a much wider range of boost while using a softer spring setup. I figure I'll probably run close to wastegate pressure for a wet/rain setup. I'm going to be using the AEM Infinity, which I believe can support 4 maps, so that should be plenty.

 

Yeah 4-ports are great for that, they are used a lot on hondas that need like 3psi in first gear and 20psi+ by 4th.

I'm sure that combo will work really well for you!

 

Yeah this is for an autox only car, so I'm a big fan of having flexibility in power level based on conditions. Having driven both a 450whp and 260whp Evos in the rain, it's a hell of a lot easier to go fast in the 260whp car...

 

I have the turbosmart twin port and considering how much it leaks from the shaft I am not sure how it is going to work... however I have springs for up to 23 psi base pressure, so that should be ok..

 

They make this skinny black part that you put inside the cabin near the floor board that controls the power output of the engine! It's revolutionary.

 

That's funny...lol. But you still need a 4 port wastegate solenoid to run boost lower than wastegate spring pressure. I know what he's saying. It's much easier to navigate cones with your right foot planting the black skinny thing to the floor board.

 

But with less power, the skinny black part can be pressed closer to the floor board, and more often.

 

Lol. And more specifically, there's more "resolution" in tps position to power level, especially on a turbo car. You can meter out the power more accurately.

 

they also made boost control!!

 

So has, anyone seen anymore failures from the EFR Shafts? or was it just Black E's 8374 that failed after being pushed too hard? It's weird to me that a 79lb/min turbo would fail at 800hp.

 

Because of the turbine wheel material, you CANNOT overspin an EFR and expect it to live very long at all. If you do, the wheel tends to disintegrate.

To me, these turbos are basically unbeatable for people who don't want to put a turbo on kill mode, like a road race car. The EFRs are amazing in that situation.

 

800 wheel hp on an AWD car with around 16-19% drivetrain loss.

 

I had a 8374 and a 9180 turbine failures due to over speed but the 9174 has been kicking hard and strong for a while now. I'm actually in the process of switching on to a aluminium CHRA 9174 with a 1.45 turbine EWG housing.