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I'm wondering what is better, supercharged k20a3 or turbocharged a3. Plz help me out. Not really into a lot of HP, but i want some power in the motor.

 
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if your not so into power but want enough, just get an a2
edit: sorry just realized maybe u alreay have an a3...anyhow i prefer turbos but hey i guess its up to you. either way low boost with a good tune should give you nice power and not so many problems.

 
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he already has a swap, why would he do another one

 
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ya thanx i realized that after.

 
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A3? This isnt for you i take it

 
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man im confused....

 
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to clear the cofusion.. i have the k20a type r motor.. i want the lower compression engine for turbo set up.

 
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so let me get this right. you have a type r motor now. but looking for more hp and thinking about a a3 swap w/ turbo/sc???

 
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just an a3 with turbo.. i'm not looking for more HP.. i want the power, but dont want the high compression ratio

 
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Put a Turbo on your K20A and run lower boost. Get a good shop to tune it and it will run safetly.

You'll make more power if not the same if you were to drop in a K20A3 with a turbo and run more psi. Plus the money you'll save swapping another motor in and out.

 
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I'm thinking KEEP the A block, its got goodies like piston oil squirters that the A3 doesn't have, just drop a set of 9:1 pistons in it.

 
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S/c that beast. Why would you take that engine out? I am a little baffled cause that sounds crazy. A s/c k20a is an excellent combo, they use them in the atom, the go cart on top gear that races a bike.

 
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i say s/c it for that down low power

 
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turbocharge it.

superchargers have an inherent parasitic loss from the fact that they are driven from the crank.

also, turbos only require a boost controller to up the boost (30 seconds).
superchargers require swapping pulleys and belts (2 hours).

 
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2 hours? lol oh come on now, i can do mine in 10 mins.

 
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well, if you have to ask "should i turbo or supercharge it?", it will probably take you 5 days.

j/k

 
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this is true lol, but i know him hes a good guy. and honestly on an A3, with one of your setups ;-) maybe you could do it and get rev-hard to make one. Just a thought

 
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revhard already wants to copy my 03 Si intercooler piping. lol. And we just swapped out the manifold and turbo we had on it for the revhard manifold and a t3/t04e with the revhard downpipe. Robs Si is gonna kick *** when were all done.