K20a = PRC IM, cams, crank, pistons, ecu, injectors... type-r
K20a = RBC IM, cams, and the rest PRC... different ports in head... euro-r
K20a2 = PRB... DC5s
K20a3 = crap... decent low comp good for boost... EP3, DC5base
K20z1 = PRC cams, and the rest is a2... DC5s 05-06
K20z3 = RBC IM and euro-r head ports... different oil pump design... 06+ si
K23 = RDX turbo
K24a1 = crap... good boost... accord
K24a2 = like a 2.4 a2 with RBC IM
K24a4 = crap... although it accepts... true vtec head swaps
crap= single variable cam lobe on intake side with vtec in @ 2200... weird, but good on gas... all with low comp to run on 87 pump
i hope i spit it all out right... but that should get you started. most i talk to think all "k20's" are created equal, but thats far from the truth.
ok, so coronavirus hit my state pretty hard and i got quarantined. since i cant go anywhere, my car has been sitting for almost 3 weeks. when i started it today, the vsa, traction control, and check engine all came on. when i opened the hood, there was nothing was out of the ordinary, so i think...
Well one day I was driving on the highway and noticed that i needed some more strength to shift into 5th. Now right way it got me thinking, so anyways I exited the freeway, come to a light, put it in neutral and when the traffic light turns green again, I attempted to put the vehicle into first...
So, long story short. I let my friend borrow my car and I just got it back, 2007 Si. I used the key to open the door and had to jump it to get it back home. Now It's at my house but the battery is completely dead so I can't use my FOB to unlock anything or pop the trunk. The problem is now...
Hello, Im currently having problems that i cant put my 2007 civic si into reverse. It just pops out when moved into reverse and I also have pop outs when i shift to 2nd 4th or 6 gear sometimes. I believe its a problem with my shifter cable but I would like some confirmation. Thank you!
Hey everyone, I’m new to the forum and a first time Honda owner.
Here’s the back story...
I just bought a 07 civic SI 4 door off of a friend at work as a project car. Last year he had the clutch replaced after it started slipping. After it was replaced he drove it 30 miles a week, just to and...