CA20 Engine swap

[long shot]

I was looking around the site and foun some CA18 engine swaps but was wondering if it is possible to do a CA20 swap. Here's the deal, i have a nissan 200sx and wrecked it a few weeks ago but the engine is fine. A guy that i work with has a 240sx for $300 but has a blown engine. I was wonering if i could pull my engine and swap it out for the blown one.

[placham]

Your talking about RWD 200sx "S12" right?

I guess it should work, I haven't seen a ca20, nor did I do a CA18 swap.

But your theory is sound. I would not be surprised if the trans would be the same also, might just have to swap bell housing. For example if you have auto and want 5 speed.

Do it, or at least try it.

Is Ca20 a DOHC motor?

[long shot]

yeah that's right. It's an s12 body, rwd, 5 speed. However the CA20 is only a SOHC. Does that mean that it wouldn't work?

[Hijacker]

Being an older model, it should work decently. It was EFI IIRC, so you'll have to do some wiring work to make it mate up to the S13s power routing.

The engine mounts will be different, IIRC. Of course, I may be off and the block shares the same location as the CA18, which is a direct bolt in on an S-chassis

The driveshaft may or may not need something special done. Nissan used the same transmission design for a LONG time, so it's possible the trans casing is the same length. You'll have to measure to be certain though.

[long shot]

well I'm not to car savvy when it comes to engines (electronics is a different story though) but what is and EFI IIRC and what does that mean? would i have to make special mounting brackets to accommodate my engine? also what do you mean when saying that it shares the same block as the engine?

[cmoody2006]

EFI= Electronic Fuel Injection IIRC= I Haven't got a clue

You would possibly have to make your own motor mounts.... By the sound of it you haven't done this before? If thats the case your in for a bumpy road.... Your block is basically what houses everything in your engine.... It holds your piston's in place and is designed specifically to spec for your car....or motor however you want to put it... I think don't quote me on this... The ca18 and ca20 block's were the same but the heads were different. Like the ka24e and ka24de the kae was sohc and the kade was dohc..... This is my guess

[long shot]

well, you guessed right, i've never done this before but i also don't expect it to be an easy task either. I'm not the best with mechanics but when it comes down to it i usually can figure things out if i take them apart. Anyways thanks for the input but if some one could tell me what IIRC means that would help too. I don't know if EFI would affect the car or not? maybe one of you would know. I was pretty sure that the the mounts on the 18 and 20 were the same. BTW i'm a member of club200sx.org since i own one and i have some knowledge about the car and the site to back me up too.

I don't know if the wiring harness in the 240 would work but i was planning on pulling the whole engine control setup and pcs from my 200sx and then installing them into the 240sx. I got to school for electronics so this would probably be the easiest part for me, or at least that's what i think. I also am assuming i'd have to use the gauges of a 200sx to make it work too.?Any other input is greatly appreciated and i thank you guys for what you've done so far, also if you could reccommend anywhere else on the web i should look that'd be great too.

[Hijacker]

IIRC = If I Remember Correctly

EFI pertains to the fuel management control system. So everything that reports to the ECU to tell it how much fuel goes to the injectors.

When you do motor swaps, there are connectors for the engine (EFI) harness that supplies it power and also has a few other wires (mostly sensor related) going through it. You need to cross referrence the chassis' wiring diagrams with the motor's wiring diagrams to get a full understanding of what exactly would need to be done to make it work right.

[long shot]

i have my factory service anual for my 200sx that has all the wiring diagrams and what not, do you know of where i could download one for the 240sx?

[Enlefo]

Sounds like a lot of work for a fairly lackluster result. If you wanna be unique, go ahead, but realize the amount of time and money you'll be putting into this will be pretty high for something that won't be that great performance wise.

Why not buy a kade out of a later model s13 or s14 and through that in? KA's are still fairly abundant and cheap.