GheyrodX - bigger, fatter, gheyer!

[scheides]

Aww, no more baby turbo? :) Looks sexeh, I love the ef-series compressor wheels.

[Murlo26]

Aww, no more baby turbo? :) Looks sexeh, I love the ef-series compressor wheels.

Still looks baby to me :D I guess mine doesn't "look" much different lol.

[goodhart]

How big is the EF2 inlet? 2.5"?

[Kracka]

How big is the EF2 inlet? 2.5"?
Right about that. The EF2 reuses the stock turbo inlet elbow.

[JET]

Ooooh, shiny!

[Kracka]

MAP EF2.5 installed and tuned by Cobb yesterday while I was in Austin, TX for an event.

426whp
393wtq
27.69 psig (peak) holding a flat 26 past redline.

Still on 93-octane pump gas and stock cams! Solid gains over the EF2, but definitely lost some spool and response. This is with the 3" anti-surge cover, but MAP also sent me a 3" standard cover so I'm thinking if I swap that one on I'll gain back some spool and response. I'll talk to MAP about it and go from there. The car is definitely a beast for a DD, and I believe this is the farthest Cobb has ever pushed the stock cams and it's getting up there for pump gas numbers too. My previous results on the EF2 were 413/384; peak boost was right about the same, ~27psi. I think this is yet another good turbocharger option from MAP. While not replacing any of the current models, it's a good fit between the EF2 and EF3 as intended.

small chart:
http://www.mitsustyle.com/photopost/data/641/medium/MAP_EF2_5_dyno_tune0001.jpg

big chart:
http://www.dsmstyle.com/photopost/data/641/MAP_EF2_5_dyno_tune0001.jpg

[Halon]

So it's the EF2 wheels, just different housings?

[Kracka]

So it's the EF2 wheels, just different housings?
No. EF2 turbine wheel, but with a different compressor wheel that allows for the larger 3" inlet. The EF2 compressor wheel isn't big enough to warrant anything but the stock turbo inlet

[Halon]

So what size is the comp wheel?

[Kracka]

It's the EF3's compressor wheel.