I thought a few of you guys might be interested in some of the latest on the BorgWarner EFR turbochargers, especially the viability of the internal waste-gate turbine housings. The 7670 and 8374 are pretty well suited for most 2 rotor applications. The 7670 is particularly nice for a sub 400rwhp car looking for ultra fast response, and the 8374 for the 500~ish rwhp cars. Anyhow here is part 1 of the 7 EFR turbo systems we are building( some we are also tuning in house too).

BorgWarner EFR IWG turbochargers and the Rotary Engine | TurboSource

 

Nice! I think I know what turbo I'm upgrading to next.

 

Update!;

BorgWarner EFR turbochargers are living up to the hype | TurboSource