2.0 stroke to 2.1
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This is a discussion on 2.0 stroke to 2.1 within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; I am thinking about doing the 2.1 stroker for my stock 2.0 block. Forged pistons, Forged Rods, and OEM crank. ...

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    2.0 stroke to 2.1

    I am thinking about doing the 2.1 stroker for my stock 2.0 block. Forged pistons, Forged Rods, and OEM crank. thoughts?

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    Sure, go for it.

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    Vague question is vague.
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    Quote Originally Posted by dgreve1 View Post
    I am thinking about doing the 2.1 stroker for my stock 2.0 block. Forged pistons, Forged Rods, and OEM crank. thoughts?
    I hope you mean OEM STi crank.
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    um my thoughts.... what pistons? what rods? what sleeves? whos doing the assembly? and the tuning? how much compression do you want to run? what about the fuel system? what turbo are you trying to support with this bottom end build? how much whp are you aiming for? you building/rebuilding the heads as well? can your transmission handle the POWA? lol what are you goals with the car? maybe im asking to much idk......but all things you need to consider before deciding to "build your motor"

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    I would be doing the assembly, not sure on tuning, OEM sti crank, Manley pistons and rods. Haven't heard a lot about them but I do like the idea of a 2.1L. Also I am curiouser if the valves will clear by going to a 2.1 I would still be on stock heads, transmission, and turbo I got a rod knock and I found this kit and it would work good to start building now wile everything is apart. I have a total of $3,000 to fix the rod knock and I found that I need to get new rod bearings and crank turned so I figured I would upgrade what I could now. I would love to get the I wrx to 400 HP at the wheel but not sure if the rest of the engine/transmission can handle it... Sorry about being vague earlier kinda not sure what all info is needed never built a motor before.
    Last edited by dgreve1; 01-15-2013 at 10:10 PM.

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    well given that you need to tear down the motor anyways id say its a perfect time for a built bottom end! although with the stock turbo you'll still be limited to like a 220-230whp machine. id say for 400hp you'll likely be looking at.....

    1. a water/meth injection setup, although E85 might get you close
    2. a pretty hefty turbo, GT3076, GT35R. any number of rotated kits out there can flow enough for that much power, and your built bottom end should handle it if its done right.
    3. def might need to build the transmission. not a neccessity right off the bat, but budget for it as the stocker wont last forever with that power esp if you drive it hard. (you want 400hp so im assuming thats the plan)
    4. supporting mods should be a given, fuel system etc. you'll need larger injectors if your going the E85 route than if you went 91 with water/meth
    5. your open front and probably worn out lsd rear diff's are probably something to consider down the road if you really want to control that 400whp. even awd has its limits
    6. dont forget. 400whp is about 240 whp more than stock. and about 180 more than stage 2. basically doubling what a stage 2 bugeye produces. its quite a bit of power esp for a DD, if yours is a DD, remember that drivability will suffer, things will break, and probably more often than you think. so budget for that as well
    Last edited by EndlessSea; 01-16-2013 at 08:20 AM.

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    ^ Great info, and some serious thought points.
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    cool thanks for the info guys really appreciate it

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