BRZ - Full Race EFR 7163 Turbo kit - Clean Install

[Circuit Motorsports]

BRZ. 6 Speed. EFR 7163 Turbo. Tuning.


We just finished a full write-up on a very nice BRZ turbo build that was completed at our shop recently. This was a very exciting project for the client with top-shelf parts, and we are happy that he is happy. Read on to see what parts we used, why we used them, and some small details that added up to a very clean install and overall result.



Full Story - http://www.circuitmotorsports-blog.c...ce-bw-efr.html

[Surok]

Thanks for the writeup.
I Currently utilize the BW 6758 and i am interested in how the car feels with the larger turbocharger installed.
when does the car generate boost? i think it is around 2000-2500 rpm on my motor.
does the cars owner have any plans to push the boost up past 20psi?

i am interested to see what a 71 series turbo can do with one of these motors.

[Circuit Motorsports]

The boost control was a little wonky, because we had to run a softer wastegate to keep the boost threshold under 6 pounds for the fuel system. It spools up and was making 6 pounds around 3k rpm.

When we can run a stiffer WG, and get more aggressive with the boost control it should improve. Overall this turbo spools up quick though!

The next step for the owner is bigger injectors, fuel return, and turning up the boost with real boost control. Goal is to stay around 350hp, then build the motor in the future.

[Amputechture]

Fuel return for 350 WHP?

[Circuit Motorsports]

350-ish hp is about the area where we have seen issues without a fuel return.

[Surok]

i have 450whp, no fuel return. just a dw 65c and E85 fuel.

[Amputechture]

That's asking for drivability issues imo.

[Surok]

nah, it drives perfectly.

fully built engine, gearbox, driveshafts, twin plate clutch etc.

[Amputechture]

Originally Posted by Surok

nah, it drives perfectly.

fully built engine, gearbox, driveshafts, twin plate clutch etc.

Not you, I was referencing a car with a return system that doesn't need it.

[8RZ]

Nice work, how long was the process?

[Circuit Motorsports]

Originally Posted by Amputechture

Not you, I was referencing a car with a return system that doesn't need it.

Not really, it just allows the fuel to be returned to the tank. If setup and tuned for it, it would not be noticeable at all. Most factory turbo cars come with a return style system, like a WRX or STI. It allows much more fuel pressure to be run. We ran into an issue with a Vortech SC car on 93 octane that wouldn't make more than about 360whp because of fuel pressure issues due to the stock return-less system.

*Also, we should clarify, it is pressure dependent, so around 12-15psi is where you will see the issue, and on most kits we have tuned that's around 350hp.

Originally Posted by 8RZ

Nice work, how long was the process?

The install took about 3-4 days to get finished, tuning is about days worth of work to get it perfect.

[Evil Rocky]

Very nice write up!

[SkyeHack]

What's a setup like that cost?

[Circuit Motorsports]

Originally Posted by Evil Rocky

Very nice write up!

Originally Posted by SkyeHack

What's a setup like that cost?

Depends on the options and turbo you choose. The Full-Race kit is around $6k, then we can add things like the oil cooler, clutch, fueling upgrades, etc.

If you're interested in a setup like this feel free to call or message us and we would be happy to assist!