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  1. All Motor K series Technical Discussion
    I have a base model rsx 03, it’s pretty much bone stock aside from coilovers and a larger intake and high flow exhaust, I’m planning on messing with it quite a bit. These have a k20a3 which isn’t the best from what I’ve heard but I’m trying to hit roughly 300hp (with boost) nothing too crazy and...
  2. All Motor K series Technical Discussion
    Hey guys, I’ve seen on here some talk about swapping the head on the k20a3 to the a2 head for a power boost on the base rsx but I’ve seen good and bad, I’m going for forced induction and I want 250-300 hp out of it, what k series would work and what engine work would I have to do (I already...
  3. Introduction Forum
    Will t he k20a3 Transmisson bolt into the k24a2 no problem and fit into the rsx
  4. General K-series related talk
    People who have done this swap, has it worked out well? Any major issues? Would you recommend?
  5. General K-series related talk
    Hi all, first post so forgive me if anything about it is wrong. I have been looking into getting a new car recently and a ‘05 Civic Type-S EV1 (UKDM) has really caught my eye. It comes with the not rated k20a3, however for a 20 year old in the uk this really is closest to the best i can get...
  6. General K-series related talk
    So my k20a3 es1 has been together for about 2 years and 22 000 km's and i have been noticing its been steadily increasing the rate it uses oil. All the mods i have listed in here: K20a3 cheap power . Oil change intervals have been 5-5500k km's and always with some high milage synthetic 5w30...
  7. 1992+ Civic EG / DC2 / EK K-Series Swap
    I'm currently trying to learn about the k series and im curious on if I were to install hasport k tuned mounts for the k20a3 on my 98 ek civic, would a k20a dc5 type r engine fit those mounts? Thanks.
  8. General K-series related talk
    So I have a JDM K20A3 and I’m wondering if the K20A2 crank will be usable in the A3(of course I’ll be upgrading rods and pistons to fit the crank)? I’m planning on boosting it as I build the motor. Please don’t tell me to get a A2 or K24 engine instead, I am just asking this simple question(no...
  9. All Motor K series Technical Discussion
    I am new to engine building, was looking to upgrade the valve springs and retainers in my a3 to go with my k20a2 cams vtec killer setup and was wondering if I could get away with using the stock valve keepers and valve seats with supertech springs and retainers for the a3, wont be revving past...
  10. Introduction Forum
    1949 or 1950 Austin Devon A40 (My first build) Dodge D50 Chassis K20A3 Greddy Turbo Kit Searching for RWD Transmission.
  11. General K-series related talk
    Hey guys I’ve recently gotten a hold of a 04 ep3 without any prior knowledge of what’s on it. I’ve replaced the exhaust as it was rotted but when I got around to driving it feels like the motor is really sluggish and gas pedal is hard when going from 1-4k rpm after a while the motor just goes...
  12. General K-series related talk
    i have a rsx type s with k20a3 block. k20z3 cylinder head complete. type s transmission, type s ecu, type s intake, type s harness, type s oil pump, a friend offers me some k20z3 pistons and crankshaft, they fit in the k20a3 block, do I need k20z3 bearing bushes? without what they sell me the...
  13. All Motor K series Technical Discussion
    Hello so this is gonna be my first engine I build alone, I don't have a body or a car ima put it into yet. And yes I know its a A3 but its what I can afford right now. I want to just build it as much as I can nothing crazy just building with what I can afford. I really want to keep this as a...
  14. General K-series related talk
    Hey i just wanted to know if anyone knew if I could put k24z7 camshafts in my k20a3 head. i have a k20a3 with bad cams and I snagged a k24z7 from work and wanted to know if those cams would work or not
  15. General K-series related talk
    Ok, I'm going just going to get this out there right away since all I've read today is that I should just throw away the A3 and find an A2... That's not what I'm going to do lol. K20A2's are starting to creep up in price to the point where they're not as affordable for me. So, I'd like to stick...
  16. General K-series related talk
    Buying parts for my future K24/k20 frank, and I found a great deal on a k20z3 head near me. Problem is, it’s missing cam gears. Can i swap the cam gears from a set of a3 cams I have lying around and be fine?
  17. General K-series related talk
    So like title says let's play a game ! Taking a stock oem block don't matter if it's head swapped as mine is as well. But short block must be stock. I will start I'm running a freshly abused 210000 mile motor when swapped at 23 psi in the summer 17 psi in winter boost by gear on e85 march marked...
  18. 2001+ Civic EP3 / RSX DC5 / EM2
    I just bought an ep3! Is there anything i need to be aware of when i go to swap my high mileage k20a3 motor from my ep3 si with an rsx base model a3.. Just the motor. The engine has 270k on it and i just don't think thats reliable anymore i need.. Should i do both trans and engine? Is there...
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