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07 civic si . need motor questions/answers

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Old Jan 9, 2010 | 01:45 PM
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jo6wo's Avatar
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From: west chester, pa, usa
Default 07 civic si . need motor questions/answers

i been out of the game for a while so i dont really know what bolts in what anymore. so thats what i need help with

i just picked up a 07 civic si cheap. with a rod through the block, dont ask i know how or why. lol. only 60k miles

heres the deal. i am consitering putting a k20a type r engine in. will it go in with any problems ? anyone know what i will need engine , ecu, harness. anything else i would need ? would a k20 a engine bolt up to my k20z3 trans ? lol i hate asking these questions but i dont know anymore
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Old Jan 9, 2010 | 01:47 PM
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Default Re: 07 civic si . need motor questions/answers

Originally Posted by jo6wo
i been out of the game for a while so i dont really know what bolts in what anymore. so thats what i need help with

i just picked up a 07 civic si cheap. with a rod through the block, dont ask i know how or why. lol. only 60k miles

heres the deal. i am consitering putting a k20a type r engine in. will it go in with any problems ? anyone know what i will need engine , ecu, harness. anything else i would need ? would a k20 a engine bolt up to my k20z3 trans ? lol i hate asking these questions but i dont know anymore
You'd have to run a stand alone, no tach, speedo or cruise.
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Old Jan 9, 2010 | 02:27 PM
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From: killafornia
Default Re: 07 civic si . need motor questions/answers

^you sure? i thought that was only if you swapped it from the single cam models.
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Old Jan 9, 2010 | 02:41 PM
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Default Re: 07 civic si . need motor questions/answers

Originally Posted by i-VTEC_DOHC
^you sure? i thought that was only if you swapped it from the single cam models.
Type R engine is a cable throttle body.
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Old Jan 9, 2010 | 02:43 PM
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From: killafornia
Default Re: 07 civic si . need motor questions/answers

if you use the long block, all u need to do is just swap the tb and the sensors go right over.
and use fp and k pro to copy the tables over from a stock itr to the fp. makes sense?
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Old Jan 9, 2010 | 03:21 PM
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From: DOMAYNE BUILT, ca
Default Re: 07 civic si . need motor questions/answers

Max you are right in regards of the long block. Now If you swap the dbw from your z3 it will work. But All you need is the block and use your z3 head. Yes the tranny will bolt up with no problems.
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Old Jan 9, 2010 | 03:24 PM
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From: killafornia
Default Re: 07 civic si . need motor questions/answers

max: 1
tokyo: 0
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Old Jan 10, 2010 | 04:11 PM
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Default Re: 07 civic si . need motor questions/answers

lol thanks for the help guys. im torn with what i want to do. i think im just going to put another z3 in and call it a day. i got a line on a complete z3 longblock for 1000 compaired to type r long block thats 3500
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Old Jan 10, 2010 | 07:03 PM
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From: killafornia
Default Re: 07 civic si . need motor questions/answers

k24z3 ftw!!!
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Old Jan 10, 2010 | 08:00 PM
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Default Re: 07 civic si . need motor questions/answers

It depends on what year K20A R motor you are talking about, I'll assume you are referring to the pre 07 K20's

jo6wo, you will have to swap all the K20Z3 sensors over to the K20 and retain the K20Z3's intake manifold (RBC) and exhaust manifold with the DBW throttle body. You will have to cut off the water port on the K20Z3 intake manifold. Everything else is golden! Just be sure to pick up flash pro and at least do a AFR tune so you don't do any damage.

Images are clickable

On the bottom is the stock K20Z3 intake manifold, on the top is after it has be modified.


the manifold on the left is a K20Z3 manifold before it's been cut.


here is what the manifold looks like after it's been cut.


Originally Posted by Tokyosmash!
You'd have to run a stand alone, no tach, speedo or cruise.
Sure if he was running the engine's sensors and throttle body and converted to cable operation.
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