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  1. General K-series related talk
    Hello I have k24z7 internals and I needed a k20 trans case to bolt up to my engine, would the internals fit into a k20a2 case or even an a3? 6 speed. Thank you
  2. General K-series related talk
    Hello I am relatively new to hondas , I purchased a k24z7 transmission thinking it was a k20z3 trans only to be lied to. I plan on putting this trans on my k20a2. Will they bolt up? And will I have to change anything about the trans to fit my Rsx? Such as the shift selector or the speed sensor...
  3. K-Series Transmission
    Hello I am relatively new to hondas , I purchased a k24z7 transmission thinking it was a k20z3 trans only to be lied to. I plan on putting this trans on my k20a2. Will they bolt up? And will I have to change anything about the trans to fit my Rsx? Such as the shift selector or the speed sensor...
  4. Engine Building
    Hi guys I have a recently built k20a2, since the rebuild the car lacks power, it crosses over into vtec, but I feel no power gain and its asif the car hits a wall once it reaches 7k rpm. You also get a strange (backfire?) Noise from the engine bay when it reaches 7k. The crossover is audible...
  5. ECU and Tuning
    I purchased a 2003 manual type-S RSX with the intent of swapping the powertrain into a 1986 AW11 MR2. In prep for this I bought a MegaSquirt3 Pro Ultimate ECU kit only to realize after some further investigation that the K20 cam phasing might be a challenge not easily solved with the MS3...
  6. All Motor K series Technical Discussion
    I’m trying to build my k24/k20 in my rsx and I need some help. What do you guys think about running wiseco 12.9:1 pistons and Manley H beam rods. I’m looking for a reliable daily quick car and I’m new to this. Thanks
  7. General K-series related talk
    Hi! I have had my ep3 (k20a2) sitting over winter and went to start it and it would not start. The car cranks over, so the battery is fine and the fulepump is running. After a numer of attemts to start it and alot of cranking i don't realy know where to begin. Do you guys have any idea of what...
  8. General K-series related talk
    Im currently doing a k20/k24 build. Ive looked online for some flathead pistons but couldnt find exactly what im looking for. Does anybody know where i can find some pistons like that? Or pistons from another make of car that will fit?
  9. All Motor K series Technical Discussion
    All, I currently have a 2006 Acura RSX Type-S with a K20Z3 swap. Currently running the original Z1 trans with open diff. RBC/I/RH/2.5” exhaust/KPRO/Mikey dyno tuned. Made 215whp on 93. I’m itching for more power and change things up a bit... Have a buddy selling a JDM K24 3-lobe with type r...
  10. General K-series related talk
    Hey guys, I’m looking for some advice on a K20 street build. I have a k20a right now but I’m willing to go k20a2 if that’s better. I’m planning to supercharge it with the jrsc but I want to keep it running on 93 octane gas. What psi should I target? Should I bore out to 90mm to get more air...
  11. General K-series related talk
    So I plan of buying a k series tucked harness and a haltech elite 1500 but will I have to run a fuse box or a switchboard. I’m just not sure how the stock harness works. Also they have an option on the k tuned website to add a dedicated power cable. Any advice would be appreciated. Hope everyone...
  12. General K-series related talk
    So I am buying parts right now and I’m wanting some help to build at least 700-800 whp. I am putting the engine in a sand rail and want it to be crazy money really isn’t an issue but I don’t want to spend an outrageous amount I want to stay around 15000 for the total engine build. I will put my...
  13. General K-series related talk
    I have a problem here for a kswap attempt for Crz. Setup as below. ECU & harness - civic type r euro fn2 Engine & transmission - k24a3 manual Chassis - Crz manual 2013 Note - swap is without kpro / hondata, the plan is to just remap the ECU itself will do. As for the harness, I am able to...
  14. General K-series related talk
    I have EF and I'm planning on k swapping it, hopefully a k20a2 or z3. Would it be possible to run A/C and/or P/S with this set up, would it fit in the engine bay? I can't find any k swapped ef's with a/c still in tact so any advice would help. thank you.
  15. General K-series related talk
    Hey Everyone! Sorry if this has been asked before. I was wondering if it is possible to put the k20 clutchkit/flywheel into a k24 gearbox? As I've been recommended to do this as it is better. Also what are the benefits of doing so rather than a k24 clutchkit/flywheel? Thanks! Pic of my ride
  16. Forced Induction and Nitrous K series discussion
    Hi I have a EF Civic and I want to make it a supercharged k series, is it possible to have a S/C k20 or S/C k24 with A/C and/or power steering. I want to do this project but I still want my car to be livable.
  17. 2001+ Civic EP3 / RSX DC5 / EM2
    So i have swapped everything over into the car (engine, trans, subframe, etc...) and done all of the wiring from following fourms. But the only thing i am needing to do now is to wire in the clutch interlock switch and the cruise control switch on the clutch pedal. I dont need cruise control...
  18. All Motor K series Technical Discussion
    Hey guys. First time poster here so let me know if I'm in the wrong section. I"ve just purchased a K24A3 and gearbox to go into an EG. My goal is 170kw/230hp at the wheels with the stock block and head. My old DC5 Type R made 160kw with bolt ons and a good tune. I have a few questions: Is it...
  19. 1992+ Civic EG / DC2 / EK K-Series Swap
    Hi, I have a ek hatch and plan on k swapping it and making it awd. I plan on going with a k20a2, but I don't know which transmission I should get that is manual and awd compatible. Is there any k20 awd manual transmissions that could be bolted on? or could any other awd manual transmission fit...
  20. General K-series related talk
    Hello everyone! New to k20a.org and have a question about my current car that i paid $1000 for running driving but was given little info on when purchased from a friend. Car is a 2006 Civic Si coupe that when i purchased i thought it had original motor and trans, until i went to adjust the...
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