twin-turbo EJ20 in EA car

[mdcc2010]

For those who don't know, the 2nd gen Legacies in Japan (and a few other RHD countries) had the option of a twin-turbo EJ20. This engine was not fitted to LHD cars because the LH turbo interfered with the brake booster and steering linkages.

 

However, cars with the EA series engines seem to have a bit more space under the hood with the engine slightly more forward (mostly due to the spare tire), so there may be sufficient clearance. Anybody ever look into transplanting a TT EJ into an older generation car?

[WoodsWagon]

http://www.ultimatesubaru.org/forum/showthread.php?t=116818&page=17

 

Note the eliminated brake booster so it's just manual brakes.

Steering column was shortened and the steering coupler lengthened to clear the turbo.

 

It really makes more sense to just run a single turbo. If you can pick up a twin turbo cheap, you can swap the exhaust manifold and run a single.

Edited April 3, 2012 by WoodsWagon

[mdcc2010]

I guess that's a yes. haha. Thanks for the link.

 

I owned a Legacy B4 RSK and love the performance and driveability of the TT (mine was an EJ 208; the 276hp high-output version). Yes it would have to be tuned to run on lower octane fuel (they want 100 RON, which isn't easy to get Stateside), but ECUTEK has experience with retuning them so i don't think that would be difficult.

 

I wonder if there's some sort of remote brake system I could use. Not necessarily brake-by-wire, but even a remote booster or something. I seem to recall some VWs in RHD trim with the brake booster still on the left, so it can probably be done. Interesting project at the very least.

 

As an aside, i still don't know why everybody hates on sequential twin turbo systems. Yes they're harder to modify, and support from an aftermarket ecu is questionable at best, but from stock they give useable boost from very low rpms without sacrificing high-end power. With Subaru's system the boost valley would have to be tuned out, but it can be done. Or, it can be mitigated by a decent driver; it rarely bothered me.