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i was gonna repaint my car, but i've decided almost 100% that i wanna do a k20a2 swap with auto tranny.. then turbo it, etc. i've heard about the Hondata ECU quite a bit.. i was wondering on gains with the Hondata ECU.. and the cost.. where to get it.. and it is actuall an ECU.. or do you add it to your ECU? i've read up some on it here, but i've seen different views on it. thanks..

 
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First off, K20A2 doesn't come as an AT. You might be able to bolt the RSX AT tranny up to it though. Also, I'm guessing you're going to have to use a K20A2 ECU too, so I don't know how well that's gonna work. You're probably going to have to get a custom Hondata ECU reflash since it's going to be AT.

Honestly, just get an A3 since it's already an AT and you wouldn't have to worry about a funky ECU. That's one route that I've been thinking about going since I've got a slushbox too.

 
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An K20A3 Auto tranny will bolt up to the K20A2. You will have to use the A2 ECU with the A2 motor. But why Jeremy? Why stay Auto? Second off, the Hondata ECU is a reflash. You send them the ECU and they burn a new program on it. Its around $600.

If you are going to do the swap I've got a part that you would need. PM me for details.

 
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You can buy a Hondata K-Pro ECU if you dont wanna do the reflash but its over like a grand for it.

 
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I don't think the ecu will work. Manual ecu's have the plugin spaces for the auto harness, but no pins

 
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^^^^Good point.

 
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The K-pro is just a reflash program. Its makes your ECU fully adjustable. It cost $1K for the K-pro ECU reflash. Or you can just buy a whole new ECU from Hondata with the K-pro ECU reflash on it. That cost $1500.

 
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you can bolt the trans up no prublem and can get everything to fit but like aznboysrfr said the ECu will not work, you will havto use a K20a3 ECU because it has the auto trans plugs and the K20a2 dosn't. and if you do use the computer you won't get the fuff potential from the motor so your better of geting the K20a3 motor and trans or call hondata and ask them if they will reflash a atou trans computer.

 
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just drive a stick...

 
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Nothing like a boosted AT. Constant boost.

 
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^^ not nearly as fun! ... hardly ever get to hear the bov!

anyway ... I doubt they will be turbo'ing for a while ...

 
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Ah yes. Another ricer. They love to hear that magical BOV.

You know why the BOV exists, right? It's to let excess boost pressure off when the throttle body slams closed. When boost pressure is let off, you now have to spool the turbo back up again to create that lost boost.

With an automatic (as long as it's built properly), just smash the gas and go. The throttle will always be open and you will always be getting boost. None of that stupid shifting stuff and blowing off.

Just look at the Titan Motorsports drag Supra. They use either a 2 or 3 speed AT in it. If it works for the Supras and they're running sub-9s, it'll be good on my Civic.

 
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^^ another ricer? hah, I don't think so my friend. I was merely stating the advantages of having a manual over auto. Manual cars are simply more fun, ask ANY SPORTS CAR ENTHUSIAST ON THE PLANET

thx 4 inf0 buddy, I already knew why turbo autos are better than manual autos and how blow off valves work. You seem to think you know a lot about them, maybe you should go write a book

btw, sub 9 seconds isn't that fast for a drag car. AEM's rwd drag civic is in the 6's and fyi, it's a manual

 
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I wasn't trying to be an *** about it. If the guy wants an AT turbo, that's on him. They're killer in a quarter mile.

I agree that an MT is great for certain applications too. Road courses or AutoX, sure. It's a bitch having to try and control the throttle so it doesn't down or upshift on you. If I was doing that kinda thing, I'd definately get an MT.

As for the AEM RWD drag Civic. That's a crock. It's got an NSX motor in it with a sheet metal aluminum body and tubular frame. Of course it's going to run 6 seconds. It weighs nothing. The Titan Motorsports Supra is a gutted car. Seat and a rollcage. That's it.

 
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^^ hm, well careful when you start calling people ricers and generalizing ...

turbo = bad for autox'ing haha ... I think.

what's wrong with the nsx motor? ... they're both 6 cylinder engines ... the supra engine still makes more power stock than the nsx. But, I do see your point. I don't know anything about the titan drag car ... I thought most professionally sponsored drag cars would be shells

 
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Well, the first thing people scream is that there's no BOV with an AT turbo. Some people just don't really care about hearing one. All the little ricers around here love to rev so people can hear it. Whooptie doo.

A turbo would be total hell for AutoX. It'd be spooling up and blowing off all the time.

I'm gonna try and find specs on the Titan Motorsports car. I'll letcha know.

 
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^^ heh, well I was just trying to respond in a way that would be most favorable to people. Since the majority of people would rather hear a bov, I inserted my comment into the post about bov's ... I think it's a nice addition to the turbo. Some ppl like to go sleeper and have the bov re-circulate the air back into the intake, as you probably already know.

If you're a great driver, launcher and shifter, manuals will still overpower auto turbo's ... at least that's what I would think. ex: auto wrx's are still slower than manual wrx's (afaik). I could be wrong... besides, there's nothing wrong with power shifting a manual turbo

 
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fuuuuck... Matt told me the a2 came in auto, and a3 didn't. so i need a2 engine.. a3 tranny.. and $1k for the ecu to be flashed for it to work? and i wanna stay auto because i'm lazy.. and have the attention span of a goldfish.. and no, i'm not joking. i would really forget to shift, i'm that forgetful.

 
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i told you the k20a2 was the type-s and was stick, but you could attach the auto tranny. all in all, i say for all the money thats going to be put into it it wont be worth it to mix the engines/tranny's. i say just do the k20a3.

 
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well, actually.. frankie talked to you and told me.. but he's a fvck up and probably told me wrong. lol. so, am i right? k20a3 engine/tranny/ecu?

 
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that is the correct combo.

maybe when you turbo it you can hang with me and jodster

 
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maybe when i turbo mine i can take you and jodster

 
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everyone has different tastes, if he rather have an AT turbo charged car than that's cool as long as you are lightin' up it's all gud

 
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^^^

 
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Im a Turbo Auto waiting for my new turbo...

 
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sweet. you have to get it dyno'd.. d17? k20? whatcha have? i have another question while i'm at it..

k20a3
Hondata
i/h/e
turbo
pnp

what kinda #'s can i expect as far as whp?

 
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Cocky- why bother even swapping in the k20a3? I honestly dont think its going to be worth your time and money... its literally 33hp, not that much.

You must as well stay with the d17 and boost it and then build up your auto tranny, or swap in the k20a2, take the 6spd and 200hp.

Thats my .02.

 
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Why would you need header if you are going turbo.
K20a3 si motor with 5 speed tranny.
Race header, catback, intake, hondata reflash would be around 165whp.

What kind turbo kit are you looking at?

If you are going to spend money on swap.
Just get K20a2 from rsx type s with 6 speed tranny and go from there.

 
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why would you want a k20a3? it only puts down 160hp...
also I like to note your going to spend 10 grand on a civic? why? go get an evo! a wrx auto and turbo it!
jesus man...
swap 7grand
cybernation turbo is like 4 grand!!!
hell man rough estimate is 11 grand jesus I just said 10 but really its like 11 or more!!!
really think hard about what you want cocky....
money is money bro.
you know you can just turbo the d17?
we run good auto up to 9 psi on stock tranny with tranny cooler.
thats about 200+hp isnt that enough? I know for a fact it will eat an rsx type S alive and a stock mustang Gt!

 
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i'm surprised no one mentioned swapping an accord/crv motor. those come automatic (k24). they have more torque. AND i bet you could get one for around $1000. that swap might end up costing you less for more machine if you really want to stay auto