Blow a3, need suggestions for swap

[04SiSpeed]

I blew the motor, and i need a new one so i am stuck between the TSX and Si/RSX Type S motors. Now my question is, will the k20a2's and z3's n what not drop right into the hatch without any new mounts, header, things like that? I figured i would need to swap the engine harness and ecu just to make it easier, but as for as functioning and putting it in the car, what exactly do i need. Now i am on a tight ass budget for several reasons.

A complete swap, with mounts, axles, harness, kpro, ect. for a k24a2 is 4k

So is it gonna be cheaper to just pick up a k20 and put it right in? Or will i have alot of odds and ends i need to get as well like with the k24 swaps? Thanks and sorry if this doesnt make sense and if someone has already asked this. I dished out 5k for my built motor, got robbed for 6k in electronics, and found out my motor on the hatch was blown all in a week. Very very upsetting... Thanks for your responses.

[talonXracer]

The complete 02'-04' K20A2 w/6spd is by far the EASIEST swap going. The longblock includes the wire harness and the A2's ECU, just pretend they are direct a3 replacement components, directly plug and play, you will need to remove the powersteering pump from the A2 and install the idler from the A3. I would also strongly suggest that at this point several washers(2-3) be added between the alternator and block on the three alternator mounting bolts of the A2 so that the original A3 serp belt will work perfectly. There COULD be an issue getting the 6spd into reverse, but it is easily remedied with a little trimming of the shifter assembly. Also I would use the A2's starter/alternator harness as well, it looks cleaner(it enters the fusebox from the frame side)

[RHCP0801]

k24a2 swap took me less than a day to put it in and start it up and that includes taking the old a3 out. Install was so easy, just need to get your exhaust fixed since it sits a lot higher in the engine bay if your using ep3 exhaust. $4000 is a shitload of money for that, i got mine from a junkyard for $1800 to my door with a warranty, call around and see if you can get a better deal

you dont need new axles, mounts or harnesses for the k24a2, all you need is a crv pass motor mount bracket that cost like $20 or whatever. I used everything from the ep3 including tranny, axles, subframe and wiring harness. All you need is kpro

[talonXracer]

I agree the K24A2 will provide a far better engine for the swap, plus when the Kpro and exhaust are added in the costs are about a wash

[SandBagger]

EP3 chassis 2,750lbs = K24a2. If you had an EG, DC2, or EK I would say K20

[talonXracer]

EP3 chassis 2,750lbs = K24a2. If you had an EG, DC2, or EK I would say K20

Do not be so quick to discount the K20A2/Z1/Z3 platform in the EP3, it is a fantastic engine and unlike the K24 platform it is completely plug and play and requires no fiddle farting.

[RHCP0801]

k24a2 was complete plug and play

[04SiSpeed]

Ugghhh this is such a headach. You want to just go with the larger motor but as my luck has it i always run into something that goes wrong. The k20 seems a lot easier to go in, but the k24 is gonna be a better suited motor for the car and its weight. Iv been looking around for some motors i found a few but they all have high miles on them. Im looking for something around 35k.

Id like to go with the k24, but i dont know if my time and money are going to allow that so i guess we will see. Ill post up when i get the motor, prolly be a while tho since the integra is getting finished.

[Tortoise]

Do not be so quick to discount the K20A2/Z1/Z3 platform in the EP3, it is a fantastic engine and unlike the K24 platform it is completely plug and play and requires no fiddle farting.

Isnt a k24a1 direct too?

[mugen03]

you need the crv passenger side motor mount......then yes

[04SiSpeed]

But the CRV motor isnt as nice as the tsx motor, i think the tsx head has similar flow rates to the type s heads. So if i was to go to a 2.4 liter it would deff be a TSX long block no doubt.

[mugen03]

k24a1 vtec killer

[talonXracer]

But the CRV motor isnt as nice as the tsx motor, i think the tsx head has similar flow rates to the type s heads. So if i was to go to a 2.4 liter it would deff be a TSX long block no doubt.

The PRB heads flows better than the smaller ports of the TSX head, the TSX can be opened up to match a typeS head, but you will never be able to outflow a ported typeS head. The TSX head was not intended for high rpm, big cam usage, it was intended for midrange torque.

[04SiSpeed]

Got ya, so say you where trying to do a nice DD with a sc. the tsx motor would be the best beat according to the theory right?

[TXEP3]

I swapped just the straight up k20a2/6speed in with zero modifications required. The only thing I had to do was get the A2 ecu reflashed to recognize my key. I read in a couple swap threads that you need to modify the shift linkage for the 6 speed, but mine works perfectly without putzing with it. IMO, swapping the A2 is the least trouble. Took the car down on a saturday morning and had the new engine in and driving monday with 3 sets of hands for help.

[RHCP0801]

they are all easy if you know what your doing, no sense in saying the a2 is the least trouble. I started at 9 30am, had the k20a3 out at noon and k24a2 in and running at midnight with the help of 2 friends and drove the car to work the next day....they all fit and are easy if you know what your doing

[heyvortek]

k20a FROM JAPAN!!!...but if u wanna be cheap. k24a1 with kpro and crv passenger mount..

[04SiSpeed]

I swapped just the straight up k20a2/6speed in with zero modifications required. The only thing I had to do was get the A2 ecu reflashed to recognize my key. I read in a couple swap threads that you need to modify the shift linkage for the 6 speed, but mine works perfectly without putzing with it. IMO, swapping the A2 is the least trouble. Took the car down on a saturday morning and had the new engine in and driving monday with 3 sets of hands for help.

yea iv been told by a few different ppl just about any k series is fairly strait threw with the install so I'm not worried bout that anymore. I'm gonna order a kpro just to keep things easy and I found a few tsx motors the k24a2 for just about 1900 with 35k on them so I am leaning toward one of those. The over all plan for the car is to hav a good dd with a supercharger so I feel the extra trq with the :24 n a sc will b very nice lol. Anyone with this set up already can hime in I'd lik to hear how you like it so far, iv seen videos they seem pretty nasty with jus the sc, header n a nice exhaust

[whatsvtec]

Of all available options, best direct swaps for versatility would be k20a, k20a2, and k24a2 IMO, best performance if you're not looking to tear into anything and want best bolt on results. I hope to someday get a tsx swap too. It's the best option w/tranny if you can find it. The taller 6th gear and larger displacement make it an instant winner for me. Good luck with your TSX swap, should do a build/swap thread to make things interesting. :pray2:

[04EP3Hatch]

PERSONAL preference, get an 06-07' K24A2 and keep your five speed, throw an ITR intake cam inside her with an RBC manifold and go get tuned. have fun with around 240whp and 200ftlb

[RHCP0801]

yea i made 235hp 191 tq on my k24a2, also kept the 5 speed

[SandBagger]

K24 with the chassis weight of the Ep3.

[04SiSpeed]

I went with a k20a, got the trans too. Couldnt find any low mile TSX motors and didnt want to do any sort of build. Stock honda with kpro all the way lol.