Common K24 questions answered

[LOVIN MY EP3]

no, mine fit perfect

just making sure... Thanks

[sbRR]

All the information in here will become extremely handy when I do my k24/k20 swap this coming Spring. Thanks everyone!

[MadLorEP3]

has anyone had any issues with using the stock k24a2 intake mani with karcepts adapter and the aem v2 intake? Will this fit?

[RHCP0801]

karcepts adapter with the ep3 throttle body? any shortram fits fine, cold airs wont

[MadLorEP3]

karcepts adapter with the ep3 throttle body? any shortram fits fine, cold airs wont

tnx bud
stupid questionbut just wanna clarify, the aem v2 is a short ram right? and the v1 was the cold air?

[RHCP0801]

yea the v2 is a short ram, i have a cai on my k24a2 but its made out of 3 inch black dryer hose due to all the bends around the battery and coolant hose.....i would love to get one made out of actual piping but this will have to do for now, and the fact that it only cost me like $10

[Kumar]

This thread has answered a lot of my questions already and has been a wealth of information. However I'm a newb when it comes to engine swaps and I want to make sure I get this right the first time.

I'm about to install a K24A1 but there are a couple of things I want to clear up before I proceed. This is the list of parts I do have:

I. Parts I bought for the swap:

1. K24A1
2. New K24A1 valve cover gasket
3. New K24A1 exhaust manifold gasket
4. New K24A1 Belt
5. New K20A3 intake manifold gasket
6. New K20A3 throttle body gasket
7. K24A1 passenger side motor mount bracket
8. KPRO

II. Questions

1.) Based on my part list, is there anything else I should replace while I have the engine on the stand?

2.) Can I use my stock injectors since I have KPRO or do I have to use 310cc injectors?

3.) I plan on using my stock exhaust manifold and stock exhaust system. I understand I have to get the downpipe extended by couple of inches to compensate for the increase in height from the K24 block, is this the part of the catalytic converter that needs to be extended?


4.) Is there anything else I forgot to mention?

Thanks for the help.

[Heitzke]

Everything looks pretty good. How many miles are on the motor you're swapping in?

You can probably get away fine with the 270's, especially since you're using the stock cat/exhaust.

I'm honestly not sure how your front sway clearance will be with the stock header/cat. Personally, my clearance issue with my RH was at the first bend in the exhaust where it crosses under the passenger floor. The extra deck height of the K24 sucked up that clearance and the exhaust was beating on the floor of the car. It's probably one of those 'wait and see' sort of things.

[Kumar]

Everything looks pretty good. How many miles are on the motor you're swapping in?

You can probably get away fine with the 270's, especially since you're using the stock cat/exhaust.

I'm honestly not sure how your front sway clearance will be with the stock header/cat. Personally, my clearance issue with my RH was at the first bend in the exhaust where it crosses under the passenger floor. The extra deck height of the K24 sucked up that clearance and the exhaust was beating on the floor of the car. It's probably one of those 'wait and see' sort of things.

Thanks for the reply Heitzke. The 03 K24A1 has 32,000+ according to the records of the salvage yard I bought it from. I was looking for a low mileage K20A3 to make the swap easier but the CRV motor was $600+ Tax.

I will be using my stock injectors and will be starting on the swap tomorrow evening. Like you said, I will wait and see about the clearance when I get to there. I will post back here with the progress.

[Import_Tuna]

Thanks for the reply Heitzke. The 03 K24A1 has 32,000+ according to the records of the salvage yard I bought it from. I was looking for a low mileage K20A3 to make the swap easier but the CRV motor was $600+ Tax.

I will be using my stock injectors and will be starting on the swap tomorrow evening. Like you said, I will wait and see about the clearance when I get to there. I will post back here with the progress.

I'm interested in this as well. I'm going to be rebuilding a K24A4 and chucking it in in the summer sometime, I'm thinking, and I don't know what I'm going to do with the exhaust. I wouldn't mind putting a header on, but I want to keep my cat, and this kinda complicates things according to what I've read so far.

[goldEp]

ok guys.. i just did my k24a1 swap yesterday.. it started right up.. all the info and tune you need is right here.. i used the tune thats on this thread the k24a1 with intake, header, exhuast. i set my launch at 5500 and rev to 7000.. i had done swaps before with b-series d-series and i have to say k-series are easier.. specialy with threads like this.. came out smooth.. i bought the long block in denver for 800 drove home swaped all from a3 motor clutch,flywheel,water pump, i used to stock k24a1 crank pully, and i had to use a little bigger serp belt then mentioned on here...i used 695k6.. problems i cam acroos the passenger side axel came out of place internally and i had take the axel boot off and fix.. once done it went back on perfect.. driver side mount gave me little shit.. took me a whole day.. first k_series swap.. pulled a3 from top and droped the k24 from top also.. it was very easy.. if only some body would add torque specs on here then you wouldnt have to go no where..! i love ephatch.! i did it in my super little garage with 20 degree weather of colorado..lol

[05TurboS2K]

I had pure bad luck with 37k on my F22c, some valve material made it into the cylinder (FRM) and scored it. Now I'm considering a K24A1/K20A2 hybrid for my S2000. I'll have to sell my AEM setup and buy a Kpro which will mean I'll loose $500 bucks in the end there. My question is this....

If I'm going turbo is it reasonable to stick with a bone stock K24A1 (and K24A1 head) with hopes of 400hp on my GT3076R turbo I have already on the F22c? I'm THEN thinking later at any time I could always slap a K20A2 head on it and get Kpro and have a nice little hp gain.

I'm trying to do this on a budget where I can upgrade later but have a 400hp turbo motor for really cheap. I know I'll need a custom manifold because the K series faces the wrong direction and I know I'll have to make a custom adapter plate for the tranny but that's fine. My AEM setup should run the K24A1 since it doesn't have Vtec correct?

Cut me some slack if you could, I know NOTHING of the K series but quite a fair bit about the F20/22.

1. Thoughts on going this route?
2. What is the limit of the K24A1's stock hp capabilities?
3. What then would be the limit with the K20A2 head when I add that later?
4. What then would be the limit with the K20A2 head + TSX pistons and rods? That help?
5. What is the safe rev-limit in all of these situations? I rev 8200 now of course but I'm fine with 7500 or whatever is safe... though I'd love to rev to 8200 simply because my stock cluster in the dash would be matched properly including the over-rev light.

thanks much guys!!!!

-Greg

Lucid,

That is what I was thinking. If I am going to be porting the head (A4) and building the valvetrain with different than stock, I didn't think I would need to bother with a K20A2 head. I am thinking that the K20A2 is best if doing an NA build or stock build as opposed to turbo.

I am doing a complete build from top to bottom (all forged) so I thought sticking with the A4 as opposed to getting a K20A2 would make more sense.

[ep-unit]

what is everyone revving the k24a1(no type-s oil pump) to?

[Twisted-X]

Alright, so I'm thinking about replacing my entire exhaust, and in the next 18 months getting a k24a2. I'd like to get the supporting exhaust mods for the K24 done before the swap. For the header, I'm thinking either the KRRH or the Skunk2. For the exhaust, either the RSX-S Megapower (60mm) or Megapower R (70mm), because I love the sound.

My questions are:

1. Will either of these headers clear the '02 front sway (which I plan on swapping in)?
2. Which exhaust diameter is better for the k24a2 (exhaust velocity and such)?

Thanks Guys(Gals)

[PAPITUYO326]

I have a KRRH + Toda Front Sway on my K24a1/K20z3 and I have about .090 inches worth of clearance once the car is on the ground. VERY tight. Much tighter than my old RSX spec DCRH or SixSigmaRacing Header.

With that said, the KRRH is very flexible for installation. You can have pieces extended to help fitment.