I did some makeshift research on wikipedia here and came up with a few engine swaps that are popular, and I guess possible, for the 240sx/s13.

http://en.wikipedia.org/wiki/Nissan_SR_engine

http://en.wikipedia.org/wiki/Nissan_CA_engine

http://en.wikipedia.org/wiki/Nissan_RB_engine

In addition, here's the original link for the 240.

http://en.wikipedia.org/wiki/240SX

Hope it helps, most of the specs are in Kw and metric units however.  

This is quite possibly the dumbest thing I have ever read. Most of these "tuners" Come from Japan were the Engine options NEVER included the KA24DE engine in the S chassis.

In fact, one drift Team went with the Boosted KA Instead of an SR to save on Cost. www.dragsport.com/issue/2006/0406_cover_story.shtml

Your Example of wear and tear is uniformed, and poor at best. Most of those dyno Examples are done with motors over the 120K-mile range. SCC, and Import Tuner Noted on several Engines they dynoed, that even with high Mileage, the Engines were in Remarkable Shape.  

Again, with the uneducated and stupid post. Why shouldn't it? The KA can withstand decent power in stock block form when turbocharged, with the weakest link the Crap Pistons. Even then, it’s good for about 300whp+/- depending on tune.

I wasn't aware that 300whp was Not Decent HP.

And not to mention, a KA-T will make More Torque than a SR will. Period.

You have failed this argument for several reasons.
First, you assume that the KA requires a rebuild for turbo charging.
Second, you assume that it would cost over 4K to make any power.
Third, you have brought NO proof of anything you said.

My conclusion is you're an idiot, and don't know half of what you're talking about  

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so you are saying that a factory turbo motor isnt the best way to go?  i was giving the most logical solution to make power.  if youre going to come here and flame threads, make sure you know where the posts are coming from.  there are plenty of boosted KAs out there that are making big power, but they will eventually have more problems then a fatory turbo motor and they will be more difficult to work with.  this is the whole point i was making, its much easier to make power with the sr20.

And You're also incorrect. The KA has a better drivetrain, more displacement (more torque) More Available parts (and the motor itself), and If you plan on making Serious power with both, plan on opening up the Block.

I think the record for a KA on stock Bottom end is something like 633whp, and that's on a 200K+ mile motor.

My biggest problem with you was giving out false information, such as 80-100whp on a stock KA, when they dyno over 25whp more, and over 160whp with boltons (equal to what a stock SR puts down)  

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* Bore × Stroke: 89.0 × 96.0 mm
   * Max power: 155 hp (112 kW) @ 5600 rpm
   * Max torque: 160 ft·lbs (217 N·m) @ 4400 rpm
   * Valve Configuration: DOHC, 16 valves
   * Compression ratio: 9.8:1, 9.5:1, 9.3:1


Do your research before you call somebody out.

What is the point of posting this? I know the Stock Specs on a KA24DE.
We were talking about Whp, not crank HP dumbass.

I also know you can Get 200 crank hp for half as much as a stock SR20 swap (and not including labor of swapping one in)



Spent around $700, and there is room for improvement (stock cams)



PDM's car, 200CHP, STOCK CAMS and 250 000kms on the motor.

http://www.club240.com/forums/showthread.php?t=30440 (info on both can be found here)  

so you are saying that a factory turbo motor isnt the best way to go?  i was giving the most logical solution to make power.  if youre going to come here and flame threads, make sure you know where the posts are coming from.  there are plenty of boosted KAs out there that are making big power, but they will eventually have more problems then a fatory turbo motor and they will be more difficult to work with.  this is the whole point i was making, its much easier to make power with the sr20.  

^ my point exactly. And i posted those specs because of the compression ratios. Yes you can turbo it and yes it will make decent hp. But why bother when the "crappy pistons" are just gonna break meaning your gonna have to strip out the engine anyways. Why not throw in a different engine while its out? Maybe an engine that is turbo from the factory? One that can handle more boost to make even more power? Why not an engine that makes almost 300 hp stock? 280 i think it is? Figure you spend 1-2K on the turbo system itself, 1-2k rebuilding your engine to handle it (replacing the "crappy pistons", and another 1-2k to have it installed. Not to mention that the swap is more.. interesting.. ill say. You will have more of a unique ride.  

your calling me an idiot based on my claimed hp numbers?  so i was 25 hp off, thats what ive seen on certain dynos, each dyno is different.  the KA24E found in 89-91 240s and the KA24DE are different as well (SOHC vs DOHC) the DE made 15 hp more that the KA24E which made 140 (from the early s13s).  those will dyno lower as well.  lets relax before we get ahead of ourselves.  Either motor is capable, but my only point was that a fatory boosted motor will typically hold up better and respond better to bolt ons.  im sure we can all agree on this to some extent.

im not saying you cant make power with the KA, if i had a 240, I would stay with it until it blew.  all i am saying is that the SR is more of a logical choice, i am in no way putting down the KA.  I am agreeing with you that its capable.  Lots of 240 guys are running big power (300 and up) on their KAs and are sticking with the KA because of the torque.  

the 240sx is an s chassis *** the only reason they made the ka24de is because the japanese engine (ca18det) isnt street legal because of the turbo and emissions from the turbo, and they never used the ka24de because nobody likes a NA sports car, and by thinking that a "stock block" ka24de can handle boost without a rebuild "you have proved you are a complete moron" ***  

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your calling me an idiot based on my claimed hp numbers?  so i was 25 hp off, thats what ive seen on certain dynos, each dyno is different.  the KA24E found in 89-91 240s and the KA24DE are different as well (SOHC vs DOHC) the DE made 15 hp more that the KA24E which made 140 (from the early s13s).  those will dyno lower as well.  lets relax before we get ahead of ourselves.  Either motor is capable, but my only point was that a fatory boosted motor will typically hold up better and respond better to bolt ons.  im sure we can all agree on this to some extent.

im not saying you cant make power with the KA, if i had a 240, I would stay with it until it blew.  all i am saying is that the SR is more of a logical choice, i am in no way putting down the KA.  I am agreeing with you that its capable.  Lots of 240 guys are running big power (300 and up) on their KAs and are sticking with the KA because of the torque.

I agree. Lets get on some common grounds here. The KA is a good motor and can make decent power. However if you had to pull the engine because maybe it cracked or something, putting in an SR engine would make a lot of sense because it is a great platform to run large amounts of hp and responds well to mods. Not to mention it is already turbocharged. Am I right?

Also, turbocharging the stock engine is a good choice. It probably ends up a grand or two cheaper and you dont have to deal with the emissions part at all. And if you rebuild the engine while your at it, you can make a beast out of your once stock engine. Right?

However, it come down to person preference?  

Both motors can make a lot of power, the KA24DE has weak ringlands and isnt built as well for boosting, but it is low compression and a 2.4L so it is atleast comparable to a SR20DET. Since it runs on regular from the factory, there is some room for adding boost, unlike a highcompression honda motor.

The SR20DET has a weak aluminum block that needs sleeved if you plan on making BIG power anyways.

Not to mention KA24DE blocks can be found for a few hundred bucks, where SR20DET blocks are a thousand or 2.  

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your calling me an idiot based on my claimed hp numbers?  so i was 25 hp off, thats what ive seen on certain dynos, each dyno is different.  the KA24E found in 89-91 240s and the KA24DE are different as well (SOHC vs DOHC) the DE made 15 hp more that the KA24E which made 140 (from the early s13s).  those will dyno lower as well.  lets relax before we get ahead of ourselves.  Either motor is capable, but my only point was that a fatory boosted motor will typically hold up better and respond better to bolt ons.  im sure we can all agree on this to some extent.

im not saying you cant make power with the KA, if i had a 240, I would stay with it until it blew.  all i am saying is that the SR is more of a logical choice, i am in no way putting down the KA.  I am agreeing with you that its capable.  Lots of 240 guys are running big power (300 and up) on their KAs and are sticking with the KA because of the torque.

I think We hit some common ground here, and I'm sorry for calling you out. You are correct that the SOHC KA was around 100hp when Dynoed, Not the DE (which does dyno over 25hp more. And That is a Huge difference)

For $2000, Plus install, You can Build a Very reliable KA-T set up that will blow any stock DET out of the water. For under $1000, you can be putting down the same numbers as a Stock SR20DET, in a N/A KA.

The KA isn't the best Motor Nissan Made, but the fanboyism needs to stop.  

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^ my point exactly. And i posted those specs because of the compression ratios. Yes you can turbo it and yes it will make decent hp. But why bother when the "crappy pistons" are just gonna break meaning your gonna have to strip out the engine anyways. Why not throw in a different engine while its out? Maybe an engine that is turbo from the factory? One that can handle more boost to make even more power? Why not an engine that makes almost 300 hp stock? 280 i think it is? Figure you spend 1-2K on the turbo system itself, 1-2k rebuilding your engine to handle it (replacing the "crappy pistons", and another 1-2k to have it installed. Not to mention that the swap is more.. interesting.. ill say. You will have more of a unique ride.

This is just dumb. Pistions Cost around $500. And SR motor Cost $2000.

You can Push over 300hp on a stock KA block, and lets say around 350-400 with a good set of pistons. ( It will not take $1000 to install them ither. Thats Laughable)

You will still be more powerful than a Bolt on SR, and cost less. And No stock SR makes 300hp.

Most people swap SR's because its the cool thing to do, not because they are educated on 240sx's  

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the 240sx is an s chassis *** the only reason they made the ka24de is because the japanese engine (ca18det) isnt street legal because of the turbo and emissions from the turbo, and they never used the ka24de because nobody likes a NA sports car, and by thinking that a "stock block" ka24de can handle boost without a rebuild "you have proved you are a complete moron" ***

I'm not sure much can be said besides you're an idiot. Around this same time period, we had the 300ZX Twin Turbo from nissan. Second, the 240sx is, and never was a sports car. Its a GT car.

The 350Z is N/A, as is the Corvette ZO6, Porsche 911 GT3, and pretty much every hyper Exotic and High end car.

and by thinking that a "stock block" ka24de can handle boost without a rebuild "you have proved you are a complete moron" ***  

It seems everyone agrees with me, an not you. I wonder who is the idiot here Jdm Riceboy?  

so what if im the only person that doesnt agree with you, do you think that telling me that im the only person that doesnt agree with you is gonna make me change my mind, im opposing you because my dad tried to turbo charge his 240sx without a rebuild because he didnt wanna spend the extra money, and sure enough one of the connecting rods broke and put a nice hole in the block while  his dumbass was doin 95 in a 65 on the freeway, i wouldve taken the car but i was 12 at the time, shortly after that he sold it to my cousin who sold it to someone else, im still pissed at my dad for what he did.