SR20 to cefiro

[KKaplumbaa]

Hello. I have an a31 cefiro but since I am in Turkey we have a CA20S engine. I did some research. Then I found that I can swap with a ca18 but when I heard that it has the similar substructure as the s13. I thought I can swap with an sr20 because the sr20 was used with the s13. So can I easily swap the sr20 on my cefiro or is it difficult? 

[GTSBoy]

Yes, it will fit, with the right engine mounts, plus a complete wiring loom. The CA is carby fed, yes? Then you need to add a complete EFI pump system (probably a whole tank) to get that to go.

I don't know the 4 cyl stuff that well, but I'd be reasonably sure you'd need an SR gearbox, which will definitely need a clutch, and probably lead to needing tailshaft mods (although maybe you'll get lucky there).

There will be more. Not from me. Just on the list.

[robbo_rb180]

yes easily doable was very common conversion around 15+ years ago

Require:
Sr20 cross member and engine mounts
sr20 gearbox or bell housing if manual CA already
sr20 loom and ecu
sr20 radiator (or make a cross over pipe to us CA style radiator)
sr20 engine

All parts can be sourced from an s13

Will require some mods to engine loom to body loom plugs but plenty of info out there on that.

 

[WMDC35]

4 minutes ago, robbo_rb180 said:

Will require some mods to engine loom to body loom plugs but plenty of info out there on that.

 

At a guess being carb all the dash loom will be different & will probably need more work there or replaced.

 

[Ozdavroz]

RB20DET also came in the Cefiro and will sound a lot better than any SR20.

Can go up to RB25/RB20 if you want it to go faster than SR20

[KKaplumbaa]

10 minutes ago, Ozdavroz said:

RB20DET also came in the Cefiro and will sound a lot better than any SR20.

Can go up to RB25/RB20 if you want it to go faster than SR20

I would do it but the spare parts for the engine are either not available or very expensive so I'm thinking of going with SR20

[KKaplumbaa]

2 minutes ago, KKaplumbaa said:

I would do it but the spare parts for the engine are either not available or very expensive so I'm thinking of going with SR20

If I can find it for a reasonable price I can do it

[KKaplumbaa]

Thank you guys all for your help.

😆

 

[KKaplumbaa]

Just now, KKaplumbaa said:

Thank you guys all for your help.

😆

 

sorry i mean 😊

[Ozdavroz]

1 hour ago, KKaplumbaa said:

I would do it but the spare parts for the engine are either not available or very expensive so I'm thinking of going with SR20

RB20 being an option from factory would mean no custom parts or fabrication required, just have to collect the right bits. Probably would be the easiest option I reckon for a motor swap. How common are SR20s vs RBs in Turkey?

[GTSBoy]

34 minutes ago, Ozdavroz said:

How common are SR20s vs RBs in Turkey?

I would suggest equally difficult to find, perhaps edging to the SR. Turkey has almost exclusively Euro market cars, some Korean, few Japanese other than pedestrian shite. I guess they're probably losing the fight against Chinese shit like we are now too.

I would vote for a BMW V8, found in a 540i in a wrecking yard somewhere in Deutschland (or possibly Albania).

[KKaplumbaa]

28 minutes ago, Ozdavroz said:

RB20 being an option from factory would mean no custom parts or fabrication required, just have to collect the right bits. Probably would be the easiest option I reckon for a motor swap. How common are SR20s vs RBs in Turkey?

SR20s came with cars like the Bluebird and Primera, but the RB20 never came. The ones in Turkey were either brought in specially or from abroad. That's why RBs aren't as common as SRs. And if a part breaks or I need to replace it when doing maintenance, it's harder to find parts for RBs.

[KKaplumbaa]

5 minutes ago, GTSBoy said:

I would suggest equally difficult to find, perhaps edging to the SR. Turkey has almost exclusively Euro market cars, some Korean, few Japanese other than pedestrian shite. I guess they're probably losing the fight against Chinese shit like we are now too.

I would vote for a BMW V8, found in a 540i in a wrecking yard somewhere in Deutschland (or possibly Albania).

I asked someone about this and he told me about the Audi 1.8T engine. But I think it would be difficult to swap

[WMDC35]

10 hours ago, KKaplumbaa said:

SR20s came with cars like the Bluebird and Primera, but the RB20 never came. The ones in Turkey were either brought in specially or from abroad. That's why RBs aren't as common as SRs. And if a part breaks or I need to replace it when doing maintenance, it's harder to find parts for RBs.

FWD is different though.

[Butters]

Given you already have the engine cross member to match and likely gearbox mount to. The SR20 has a head start on the RB in this case.

They handle GREAT with an SR20, lots of fun.

 

One I did back in the day

[GTSBoy]

I would think that rather than attempting to perform an engine swap, with all the difficulties associated with doing so in a country where the raw materials required are harder to get hold of, I would just build the CA20 for boost, find an EFI manifold for it and either add a turbo or a supercharger. Or both.

You replace one set of difficulties with a different set, but I know which would be more fun.

[KKaplumbaa]

12 hours ago, WMDC35 said:

FWD is different though.

Yeah, I did some research and found out that some things are different.

[KKaplumbaa]

4 hours ago, GTSBoy said:

I would think that rather than attempting to perform an engine swap, with all the difficulties associated with doing so in a country where the raw materials required are harder to get hold of, I would just build the CA20 for boost, find an EFI manifold for it and either add a turbo or a supercharger. Or both.

You replace one set of difficulties with a different set, but I know which would be more fun.

If there's nothing else I can do I'll probably do something like that

Someone on the internet said that ca20s and ca18 engine blocks are the same and that you can use a ca20 engine block and put ca18det parts to make a ca20det Do you think this is possible or will it damage the engine?

[KKaplumbaa]

6 hours ago, Butters said:

Given you already have the engine cross member to match and likely gearbox mount to. The SR20 has a head start on the RB in this case.

They handle GREAT with an SR20, lots of fun.

 

One I did back in the day

I hope one day I can do it like you. Your engine looks great.

[GTSBoy]

1 hour ago, KKaplumbaa said:

Someone on the internet said that ca20s and ca18 engine blocks are the same and that you can use a ca20 engine block and put ca18det parts to make a ca20det Do you think this is possible or will it damage the engine?

I don't know if the blocks are "the same". They will be very very similar. Obviously, either the bore or the stroke is going to be bigger on the 20. If the bore is bigger, then the 18 head is unlikely to fit properly. If the bore is the same, then you can almost certainly fit the CA18 head, but there migth be a few fun things you have to do to make water galleries (or other things) line up properly. Or... it could just be real easy.

Is it worth the effort? Almost certainly not. You can make nearly as much power on a 2 valv ehead as you can on a 4 valve. There's not any "magic" in a 4 valve head.