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  1. General K-series related talk
    I have a k20 swapped mr2. I have finally gotten the motor running, the car has a 4bar map sensor. It will not run cleanly when I have it plugged in but when I disconnect the sensor the car goes down in idle and begins to die. For background info I have a base rsx harness with a skunk 2 pro TB on...
  2. All Motor K series Technical Discussion
    Here we go for investigatio guys, ima try to list most info i can relate so bare with me Looking for insights on a destruction that happened on my k20/24 Drove my k20/24 swapped car yesterday, did some pulls, had fun no issue at all. On my way back home i was crusing 5th around 2400rpm then...
  3. General K-series related talk
    Does anyone know if the K20A3 has compatible sensors and water pump housing with the K24A1. I currently have a K24A1 with none of the above mentioned, I'm also working on getting a K20A3 for the head, and figured if it has all the sensors and water pump housing I might as well harvest those if...
  4. All Motor K series Technical Discussion
    I’m from Canada, Ontario and over here we don’t have e85 as a normal gas pump so my best gas is 94Oct. But I wanted to know how would I be able to reach the 300hp club or around it with pump gas I know what to do up top with my head 4P PRO TSX CNC head with DC 4.5’s Super tech valvetrain But I’m...
  5. General K-series related talk
    Hey guys I just got an EP3 Si trans with 140k miles. I’m planning on putting a k20z3 LSD in it. I was wondering if while I’m in there I should just bite the bullet and install some new diff carrier bearings.
  6. K-Series Transmission
    So I’ve just gone from k20 swap ek to k24 block k20 head the only thing is my gearbox from the k24 is auto will my ep3 k20a2 gear box bolt straight up and that’s it? I’m only asking cus my mate said I need a bush to convert to manual?
  7. 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
  8. Engine Building
    I'm putting together a k24a1 frank with a k20z3 head. Block and head are completely stock, and I'm using an OEM TSX headgasket. I'm going to run a 50 degree VTC gear, and was wondering if anyone had run this combo before and experienced any problems with the full 50 degree VTC advance. I know...
  9. General K-series related talk
    hey guys what is the best oil to run in a k20 race car? if you had no budget which oil would you run? I recently purchased motul 8100 x clean EFE 5W30, I just hit 200,000 and I want my motor to run smoother.
  10. All Motor K series Technical Discussion
    The mods on my k20/k24 are Forged pistons/ rods Supertech springs and retainers Ported head and ported oil pump Bored out block with sleeves I was wondering if I need bigger injectors for the car to run right. I just want to get it tuned and running for now and save up for the fuel system...
  11. ECU and Tuning
    I have a ep3 with a k20a2 swap. I’m running kpro. It gave me some issues with the primary 02 sensor and said that it had daughter board communication errors and voltage errors. From what I read the o2 sensor was the culprit. However I replaced it cleared the codes and it still won’t start. Any...
  12. 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
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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
  18. 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...
  19. 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?
  20. 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...
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