AKUMA EVO X: AKUMA's new 2.2L and more
 

I wanted to start this thread to update what we are doing with the shop Evo X. I had a thread up a while ago, but there are so many changes, I though it would make sense to start over.

Basically I had the opportunity to develop our new stroker motor with our machinist and throw it in the EVO X. Shep really hooked us up with a trans overhaul and a new final drive as well. Headgames is doing the head, and I will get it tuned.

Here are the specs of the new build:

AKUMA 2.2L Shortblock
-JE Asymmetrical pistons Coated
with upgraded pins**Retains Oil Squirters**
-Manley Rods- Turbo Tuff Pro I Beam
-Manley Billet Crank-94mm 33lbs
-ACL bearings
-Cosworth thrust Bearings
-Akuma Spec ARP Headstuds---See pics below, they are HUGE!
-Mainline honed/Cyl Torque Plate Honed/Blueprinted/Balanced

-Head work by HEADGAMES:
-Valve job
-Ferrera valves(inconnel Ex)
-Combustion chamber shaping
-Cosworth DUAL Spring and Ti retainer set
-KELFORD C Cams***
-Cosworth Head Gasket
-Head gasket matched to Akuma Spec Head studs

These are most of the other mods on the car... :)
-FP Black Ball Bearing Turbo
-Fullrace Header-coated
-TBE: Tomei Ti cat Back and test pipe
-Akuma I/C Pipe kit with ETS 4" core
-KW Competition 2 way coilovers-corner balanced and aligned@ Akuma
-Aquamist Meth Injection
-Cusco chassis bracing
-Whiteline Sway-Re
-Recaro Profi seat and Personal Wheel
-Akuma Surge Tank + Bosch 044 + FIC 1100cc +Cosy rail and FPR
-Akuma Firewall
-Carbonetic twin Carbon Clutch

I will have it assembled next week and on the dyno the middle of the following week, but here are some pics to start

http://i576.photobucket.com/albums/s...s/IMG_1004.jpg http://i576.photobucket.com/albums/s...s/IMG_1003.jpg http://i576.photobucket.com/albums/s...s/IMG_1002.jpg

This is the 1/2" Headstud vs to standard ARP stud...
http://i576.photobucket.com/albums/s...s/IMG_1006.jpghttp://i576.photobucket.com/albums/s...s/IMG_1005.jpg

cant wait to see the results!

why did you use JE pistons instead of the manley that go with that stroker kit?

This is not an off the shelf stroker kit. I chose the JE Asymmetrical pistons because of their design. The forging is very similar to the Cosworth piston design. The obvious difference being the asymmetric skirt. This design has a few benefits on paper, from weight savings to knock resistance. Manley has some very nice products, but the new JE design has the edge in this department.

I have the head coming back on Weds. so I should have it on the road Thursday...tuning the following week or possibly Saturday. Once I have actual data, I can then put up a much more detailed follow up post.

John

Turbo Tuff Crank+Turbo Tuff I beams+Platinum series 2618 Manley Pistons =Off the shelf Manley stroker kit. Only difference here looks appears to be the JE pistons (custom ordered?) that is that same stroker kit I am using in my current build, except I am using the Manley pistons. JE looks like Very nice stuff also, are they 2618?

Looking forward to the results. Good luck with the rest of the build.
http://photos-h.ak.fbcdn.net/hphotos..._2715387_n.jpg
http://photos-b.ak.fbcdn.net/hphotos..._6998459_n.jpg

Any updates?

We had an issue with the motor..

https://www.evolutionm.net/forums/ec...-thoughts.html

an update will be posted in the future when we receive the engine again.

Mike@Akuma