Thread: Time Attack BRZ
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Old 10-13-2021, 12:27 AM   #263
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region: NWIC
Location: Greater Seattle Area
2002 WRX - Link ECU
being installed :)


Originally Posted by JDwhiteWRX View Post
My turbo has arrived!

It took me a long time to come to a decision on which turbo to get, it was either going to be Garrett or Borg Warner. Obviously both great options but in the end the EFR series from Borg Warner won me over.

I've always been a fan of twin scroll housings and Garrett don't seem to be offering this on their newer G series turbos, they really do help to get a larger turbo making boost sooner.

I was also attracted to the aluminium housing option that is only available with BW EFR for the weight savings and better thermal properties.

EFR has a significantly lighter weight turbine wheel for better spool and transient response and a properly designed internal wastegate system for simplicity and better packaging.

The IWG is not always perfect though and it will limit my top end power to some degree. Full Race Motorsport have just released a kit for the internally gated EFR that uses a Civic Type R electronic IWG actuator for ultimate boost control, so I have purchased this kit to prevent any potential issues.

I have seen and heard lots of issues with the IWGs on the EFRs not working correctly even when properly configured with BW not being able to provide any meaningful support or resolution.
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