# SR20 to CA18 Swap

**URL:** <https://forums.speedlife.net/t/sr20-to-ca18-swap/142798>\
**Category:** Canada Nissan Automotive\
**Created:** [June 4, 2006, 9:59pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798 "2006-06-04T21:59:01Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Speed\_Dreams](https://avatars.discourse-cdn.com/v4/letter/s/cdc98d/32.png) [@Speed\_Dreams](https://forums.speedlife.net/u/Speed_Dreams)\
**Post date:** [June 4, 2006, 9:59pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/1 "2006-06-04T21:59:01Z")

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Has anyone done this?  
Am i crazy for thinking about this? please list some reasons other then . because SR20 own

How much more work is it to change the motor the to CA18??

Thanks Guys

Drew

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**Author:** ![Lo\_2enz0](https://avatars.discourse-cdn.com/v4/letter/l/90db22/32.png) [@Lo\_2enz0](https://forums.speedlife.net/u/Lo_2enz0)\
**Post date:** [June 4, 2006, 10:18pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/2 "2006-06-04T22:18:02Z")

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its just a bit of wiring. lol i think its awsome you want to switch to a ca18

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**Author:** ![Speed\_Dreams](https://avatars.discourse-cdn.com/v4/letter/s/cdc98d/32.png) [@Speed\_Dreams](https://forums.speedlife.net/u/Speed_Dreams)\
**Post date:** [June 4, 2006, 10:28pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/3 "2006-06-04T22:28:36Z")

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well the parts are harder to find , they are more expensive because of the rarity but im just wondering how crazy am i?

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**Author:** ![Dynamo7](https://avatars.discourse-cdn.com/v4/letter/d/5fc32e/32.png) [@Dynamo7](https://forums.speedlife.net/u/Dynamo7)\
**Post date:** [June 4, 2006, 10:30pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/4 "2006-06-04T22:30:35Z")

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Rad ports on on the opposite side too, but a KA rad is the same as a CA one

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**Author:** ![TyPhOOn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/typhoon/32/5800_2.png) [@TyPhOOn](https://forums.speedlife.net/u/TyPhOOn)\
**Post date:** [June 4, 2006, 11:32pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/5 "2006-06-04T23:32:06Z")

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good job … props on this idea

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**Author:** ![Speed\_Dreams](https://avatars.discourse-cdn.com/v4/letter/s/cdc98d/32.png) [@Speed\_Dreams](https://forums.speedlife.net/u/Speed_Dreams)\
**Post date:** [June 5, 2006, 6:09am UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/6 "2006-06-05T06:09:00Z")

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do you guys have any technical info on the CA? like redline and stuff? How much power can be had with a mildly modded CA? are the motor mounts the same as the KA/SR ones?

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**Author:** ![CA18DET-180SX](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)\
**Post date:** [June 5, 2006, 7:24am UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/7 "2006-06-05T07:24:53Z")

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[www.ca18det.org](http://www.ca18det.org) They have good info on CA’s there including a crossover parts list.

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**Author:** ![Lo\_2enz0](https://avatars.discourse-cdn.com/v4/letter/l/90db22/32.png) [@Lo\_2enz0](https://forums.speedlife.net/u/Lo_2enz0)\
**Post date:** [June 5, 2006, 8:49am UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/8 "2006-06-05T08:49:20Z")

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a ca18 lightly modded can get about 200-220 whp, a mildly upgraded one 275-300whp at 18psi

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**Author:** ![TyPhOOn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/typhoon/32/5800_2.png) [@TyPhOOn](https://forums.speedlife.net/u/TyPhOOn)\
**Post date:** [June 5, 2006, 10:27am UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/9 "2006-06-05T10:27:53Z")

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just like an SR20, 300hp is very easily attainable with bolt -ons

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**Author:** ![Ca\_Silvia](https://avatars.discourse-cdn.com/v4/letter/c/5f8ce5/32.png) [@Ca\_Silvia](https://forums.speedlife.net/u/Ca_Silvia)\
**Post date:** [June 5, 2006, 5:12pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/10 "2006-06-05T17:12:11Z")

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Woah now, isn’t swapping in motors that are older than your production year illegal? Im not one to side with the law but… 1 you couldn’t insure it (well you shouldn’t be able but usually their pretty dumb at the registries) 2 if your car came stock with the SR then your fucked.

But on the other hand you can do anything you want if you dont’ get caught. Props for the CA love.

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**Author:** ![Lo\_2enz0](https://avatars.discourse-cdn.com/v4/letter/l/90db22/32.png) [@Lo\_2enz0](https://forums.speedlife.net/u/Lo_2enz0)\
**Post date:** [June 5, 2006, 5:16pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/11 "2006-06-05T17:16:20Z")

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according to my insurance…i have a ka24e in my car and its completely stock

like scott said ca18’s can make 300 easily. a decent tune, upgarded exhaust, turbo, intake, maf, injectors, fuel pump, and your on your way to 300

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**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\
**Post date:** [June 5, 2006, 5:40pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/12 "2006-06-05T17:40:42Z")

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hopefully this is a joke. :finga:

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<div class="post-metadata">

**Author:** ![Lo\_2enz0](https://avatars.discourse-cdn.com/v4/letter/l/90db22/32.png) [@Lo\_2enz0](https://forums.speedlife.net/u/Lo_2enz0)\
**Post date:** [June 5, 2006, 5:42pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/13 "2006-06-05T17:42:08Z")

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why would it be a joke, someone wants to put a better motor in the car than some chreap pop can lol

personally i am wondering why your not keeping the sr20

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**Author:** ![Speed\_Dreams](https://avatars.discourse-cdn.com/v4/letter/s/cdc98d/32.png) [@Speed\_Dreams](https://forums.speedlife.net/u/Speed_Dreams)\
**Post date:** [June 5, 2006, 8:03pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/14 "2006-06-05T20:03:50Z")

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im just weighing the optoins out there really. I will be swapping in either a new Sr20 or the Ca18 hopefully by the end of the month. Its roughly the same price for a SR Engine and a CA18 Motor swap package ( motor with turbo and trans, ECu and harness. )

questions i have are, can i use my Exhaust? I have a 3" elbow, dp, test pipe , catback  
wiill my T28 bolt on to the CA manifold?  
whats the difference in wiring? Im sure i will find this all out when i read that link to [Ca18det.net](http://Ca18det.net) or whatever , but any help and less reading for me is better

thanks for all your help guys its all still up in the air so…only time will tell

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**Author:** ![Dynamo7](https://avatars.discourse-cdn.com/v4/letter/d/5fc32e/32.png) [@Dynamo7](https://forums.speedlife.net/u/Dynamo7)\
**Post date:** [June 5, 2006, 8:45pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/15 "2006-06-05T20:45:41Z")

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A t28 will bolt to the manifold, and i believe the exhaust will work too. Some correct me if im wrong.

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**Author:** ![silvers13](https://avatars.discourse-cdn.com/v4/letter/s/47e85d/32.png) [@silvers13](https://forums.speedlife.net/u/silvers13)\
**Post date:** [June 5, 2006, 9:22pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/16 "2006-06-05T21:22:23Z")

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sure it will … im running the t28 setup on my ca 😃

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**Author:** ![beatshack](https://avatars.discourse-cdn.com/v4/letter/b/f0a364/32.png) [@beatshack](https://forums.speedlife.net/u/beatshack)\
**Post date:** [June 5, 2006, 10:13pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/17 "2006-06-05T22:13:45Z")

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is the CA18 an iron short block? One thing I liked about 4g63 six bolt engines were the iron short block and pretty much industructible bottom end. The heads were a different story.

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**Author:** ![CA18DET-180SX](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)\
**Post date:** [June 5, 2006, 10:21pm UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/18 "2006-06-05T22:21:59Z")

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> [@Ca\_Silvia](#):
>
> Woah now, isn’t swapping in motors that are older than your production year illegal? Im not one to side with the law but… 1 you couldn’t insure it (well you shouldn’t be able but usually their pretty dumb at the registries) 2 if your car came stock with the SR then your fucked.
> 
> But on the other hand you can do anything you want if you dont’ get caught. Props for the CA love.

Not to my knowledge, I think they only thing they look at is the displacement. So you could say your going from a 2.4L down to a 1.8L/2.0L for “fuel economy”. I know its illegal in some places in the states but I don’t think so here.

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**Author:** ![Speed\_Dreams](https://avatars.discourse-cdn.com/v4/letter/s/cdc98d/32.png) [@Speed\_Dreams](https://forums.speedlife.net/u/Speed_Dreams)\
**Post date:** [June 6, 2006, 6:38am UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/19 "2006-06-06T06:38:52Z")

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this is all good to know,  
The thing with my insurance is that they think i have a Stock 92 240SX so it shouldn’t matter.

I was reading through the CA FAQ on silvia , because the [Ca18det.org](http://Ca18det.org) site wouldn’t load on my computer, but someone mentioned the cluster being different , just like how in a 89-90 240 you neex the different cluster for the tach to work because of the electronics. Now that being said do i need to go to a 89-90 cluster for the tach to work becuase the Ca’s electronics are different?

thanks again guys

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**Author:** ![TyPhOOn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/typhoon/32/5800_2.png) [@TyPhOOn](https://forums.speedlife.net/u/TyPhOOn)\
**Post date:** [June 6, 2006, 7:12am UTC](https://forums.speedlife.net/t/sr20-to-ca18-swap/142798/20 "2006-06-06T07:12:43Z")

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I am using a SR20 HUD cluster on my 180sx right now and it is working …

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