With the huge capability of the Borg Warner EFR turbos being explored more regularly as of late, we decided to put together a small kit to make it easier to get a proper 4-port EBC valve installed. This kit includes all the bits and pieces needed to convert from the EFR's standard 3-port valve to a MAC 4-port valve. The bracket, valve, mounting hardware, and vacuum fittings are all included, as well as an extra piece of hose and two spring clamps.

Trackspeed 4-Port EBC Valve Kit (EFR)

We expect that most customers will combine this kit with Turbosmart's bolt-on EFR dual-port actuator. The combination will be the easy button for medium/big boost EFR builds.

Turbosmart EFR Dual-Port Wastegate Actuator

 

Heck yea!

Has anyone else had issues with the dual port wastegate canister like Aidan has? Or is it just a heat and or alignment issue?

 

Aidan and I brainstormed a while ago about his problem with the actuator. I agree that it's a heat issue but it's exacerbated by his turbo location (low mount). I've had a Turbosmart actuator on my car for a long while, at least a year, with zero issues. On the Trackspeed kit, the actuator sits right under my hood vent, so there's no concern about heat-related issues.

 

Thanks for the info. This would be great solution for map switching between low to high boost. It sucks when a high boost canister means 18psi minimum.

 

I am going to swap to this shortly in Acamas. I have been using the Turbosmart with off-the-shelf 14psi springs (7+7), but I'm going to swap the inner spring for a 3psi to bring the base down to 10, and then walk it up from there. Should make it a little more driveable at partial throttle and give me better boost control on E85 at 25+psi as well.

 

Never heard of MAC, how does it compare to a Grainger 4 port solenoid? (just what I've used in the past)

 

MAC is pretty common, but IIRC there where two types of solenoids with different frequencies, however, the part number I commonly found in the past all pointed to 46A-AA1-JDBA-1BA
If only I could figure out how to do Aidan's multi position boost control switch. It'd be awesome to have a 3 position selector for low - med - high.