Everything you need to swap an a2 into an EP

[WhiteOnRice]

You thought this was going to be a write up huh? Well it's not! But it may be someday...

I'm going to make this into a list of things you need to swap a k20a2 into an EP3. The list is for people like me: who need every detail before jumping into an engine swap.

I'm doing the swap in 2 weekends, maybe I'll take some pictures and make a formal write up. I'm pulling it up and out (don't want to mess with the subframe).

What I've gathered that isn't obvious or doesn't bolt in:
-Replace RSX-S power steering pump with EP3 idler pulley
-Serpentine belt: 64" 7-ribbed or EP3 belt with washers to extend alternator pulley outwards.
-RSX-S engine harness, EP3 can be used with modification
-EP shifter may need to be cut to reach reverse ( http://images.sportcompactcarweb.com...rid02_zoom.jpg )
-RSX-S ecu (use EP3 until you get your key reprogrammed to ECU by Acura/Honda, keep RPM's low until while using EP3 ECU)
-EP3 axles

Let me know if I should add anything.

[nilly1010]

you need to keep the ep3 axles i believe

[davisj3537]

You DO NOT run that on a ep3 ecu under any circumstances. You don't need rsx axles...they are the same as ours. Ep shifter only needs to be cut if you have an 04-05 model and if you have a bcss then there is not cuttin involved. I have never heard anything about washers to extend the alternator...

[ClouD]

[QUOTE=davisj3537;523418]You don't need rsx axles...they are the same as ours.[QUOTE]

Is the rsx axles the same for the types s and base model? It should be since our motor is there base one.

[davisj3537]

Is the rsx axles the same for the types s and base model? It should be since our motor is there base one.

Yes they are the same sir

[shadowmd]

[QUOTE=davisj3537;523418]. Ep shifter only needs to be cut if you have an 04-05 model and if you have a bcss then there is not cuttin involvedQUOTE]

not true lol. i have an 05 ep and when i first got my a2 swap i ran with the stock shifter assembly for about a year then switched to the buddy club. but i never had to mod my stock shifter assembly.

[r_jones06]

you need to keep the ep3 axles i believe

that is my understanding too from my post from earlier this week... a2 splines are bigger http://www.ephatch.com/forum/showthread.php?t=43421

[blackbelt]

I have an A2 swap. This would have come in handy.

[davisj3537]

The rsx axles wont match up with your hubs is what it is. Your axles have the same spline pattern on the tranny side of the axle.

[WhiteOnRice]

Yes, you use your EP axles. I don't know why I said RSX-S axles. The splines are larger on the RSX-S (axle nut is 36mm on DC5, 32mm on EP3).

You DO NOT run that on a ep3 ecu under any circumstances.

Why do you say this? I can't start the swapped car with my EP key and Acura says I MUST drive the car to the dealership for them to reprogram the key.

Can anyone confirm what belt I should use? Will EP3 belt work fine with the EP idler pulley and all other pulleys from the rsx-s?

[jdmrace1]

thanks for the info, definitely helps

[clizoman]

you got it right just swap the pump, tensioner, idler and ac compress over.

[03ep3 stapel]

this was all helpfull for me to read too because i am getting an a2 and building the bottom end and swapping it thanks

[solidcoma18]

I'm getting everything ready to do the K20A2 swap next week but I got a question, can a use the A3 alternator and crankshaft pulley because the one that came with the engine A2 pulley has a little piece missing and onother thing, can I use the A3 throtle body because the engine the I got came without the TP sensor. Thnaks!!!

[j0000stin]

I'm getting everything ready to do the K20A2 swap next week but I got a question, can a use the A3 alternator and crankshaft pulley because the one that came with the engine A2 pulley has a little piece missing and onother thing, can I use the A3 throtle body because the engine the I got came without the TP sensor. Thnaks!!!

yes and yes