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Discussion Starter · #1 ·
So this late spring/early summer, I am pulling the trans to install carbon synchros and will also be removing the motor to do some porting on the head, cleaning up the engine bay. I'm currently making 400+whp on my setup, so I figured while I'm at it, why not do a 2.3L?

I currently have a built big turbo and 4 port system (see sig), and this is my daily driver. Seeing what a stroker kit does for down low power, I really want to go that route, but keep the car daily drivable. For someone in my position, would I need anything more than a 2.3 kit from SpeedPerformance, or is it as easy as throwing in the new rotating assembly and buttoning it up with a proper tune?

Not my first rodeo, I've built 350's in the past, but this would be my first 4cyl rebuild.

Thank you guys in advance for any insight you could provide.
 

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the guys on here make it seem as easy as swapping pistons, rods, and proper crank.
 

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I have a 2.3 build from speed. I would give Pablo a call and ask if there is anything else he suggests other than the norm.


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@kewing and multiple other guys in here are in the process of a 2.3 build. Karl would be able to answer many questions you may have. I am going to link some motor builds

http://www.focusst.org/forum/focus-st-builds/75858-stealth-s-2-3-build.html
http://www.focusst.org/forum/focus-st-builds/127641-kewing-2-3-build-project-quicksilver.html

Found this over in the RS forum, lots of great info since they are using the 2.0 block.
http://www.focusrs.org/forum/53-focus-rs-builds/97186-building-strong-2-3-2-0-block-6.html
 
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Check out Stealth's build or mine and it should tell you all you need. If you take a little time and ask around you can source the parts separate much cheaper. Stealth did a 2.0 build for around $2,000. My 2.3 build will be around $2,200 or so. All depends on what you want and how far you want to take it. Good luck and feel free to send me a message if you have questions.

I will say get a keyed crank and sprocket. If it is a daily maybe just shoot for some 4032 pistons instead of the 2618. That will lower your hp ceiling, but will wear better and be a little quieter. Just have to determine what you want. Side note: the head sucks...runners are ok, but I roll my eyes while typing this. Bowls are horrible!! Like the devil himself cast these bowls! LOL

Bowl work is a must. Crower valve springs. Clean the valves are you should be good!

Good Luck!
 

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Discussion Starter · #6 ·
@kewing and multiple other guys in here are in the process of a 2.3 build. Karl would be able to answer many questions you may have. I am going to link some motor builds

http://www.focusst.org/forum/focus-st-builds/75858-stealth-s-2-3-build.html
http://www.focusst.org/forum/focus-st-builds/127641-kewing-2-3-build-project-quicksilver.html

Found this over in the RS forum, lots of great info since they are using the 2.0 block.
http://www.focusrs.org/forum/53-focus-rs-builds/97186-building-strong-2-3-2-0-block-6.html
Thank you for the info! I’ve been reading through these, great resources.


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So having just been through the process here is what I found. You have a choice of having the pistons sit too far down in the hole or doing a custom piston. Most of the time that means buying 4 sets. But Manley will mod off the self pistons for $250. You call the compression you want.
 

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So having just been through the process here is what I found. You have a choice of having the pistons sit too far down in the hole or doing a custom piston. Most of the time that means buying 4 sets. But Manley will mod off the self pistons for $250. You call the compression you want.
I went with Mustang rods and focus 2.0 pistons and they don't sit that far down. My compression will be around 9.4:1 or so. However, if you need something different I can see how modifying off the shelf pistons would be ideal. All depends how much you want to spend! LOL
 

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Discussion Starter · #9 ·
I went with Mustang rods and focus 2.0 pistons and they don't sit that far down. My compression will be around 9.4:1 or so. However, if you need something different I can see how modifying off the shelf pistons would be ideal. All depends how much you want to spend! LOL
Had you gone with 2.3 pistons instead of the 2.0's, would your compression ratio have been higher or lower than 9.4:1?
 

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@SIstomper @kewing what rod and main bearing clearance does this engine call for?


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Mine were right at .003"
Connecting rod should be .0011" - .002" max of .0039"
Mains .0007" - .0015" max of .0039"

This is out of the manual.
 
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