KA24DE into R32

Information on the naturally-aspirated KA24E and KA24DE engines.
mattheripper
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I have 2 KA24DE's. One has been rebuilt the other has low milage. I'm just wanting to know what it would take to get it in and running(the easiest way). Mounting it all up I'll need a KA crossmember. I'm assuming fuel system will be just hooked up the same, since I have a Walbro 255 and the fuel filter looks "similar". I'm mostly wondering about electrical. I've read write ups on RB20's into s13's and electrical is a matter of splicing a few wires... Could this be the same vice versa? Or how would it work since the KA has a distributor and coil? Any info will be greatly appreciated.

P.S. I currently have a pretty stock form RB20DET in my R32. It is running good and all, I'm just curious about all this incase things go south with it. Also the RB20 is a tank engine in comparison and quite a bit harder to replace than a KA24.


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Razi
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I think it'd be too much work to be worth it, why not just buy a spare RB or rebuild your current one if it ever dies?

Would be easier and quicker to swap in another RB than to try to hook up a KA into a R32.

You would probably need to fabricate custom engine mounts, and I'm not sure how you'd mate your transmission to the KA.

mattheripper
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The work is not an issue. It would be easier to swap in another RB20 and I've already had to take my engine out. But I would like to try this if I can more or less swap in 240sx parts(Harness, ECU, coil etc.). The KA crossmember will place the engine where it needs. Just like using the RB crossmember when swapping the RB20 into an s13. Both KA's have manual transmissions. I'm really just wanting to know if someone has an idea about the electrical side?

backseat240
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seems to me like the electircal would be just the opposite of a rb20 into a s13, would this be the first ka to go into a skyine ever???

mattheripper
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That's what I was thinking. Its just the distributor and coil snatch that's throwing me off. That'd be cooler if it was the first KA in an R32 but I bet someone somewhere has done it...maybe not in a four door though:D

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GO240
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dude you'd blow everyones mind they'd be like damn thats a skyline then it'd role by and they'd swear its a 240 with a body mod then you'd get to slap them in the face and say "b**** don't know about my KA fool" for real

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mys13240
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This is the most rediculous this I think I have ever heard of. You put a skyline engine in a 240sx for these reasons. The RB's have descent power in stock form and can be opened up with ease, but the skylines are really heavy. The 240sx on the other hand is relatively light, but has a powerplant that isn't so ballzy without modifying heavilly. There are plenty of salvaged skylines in japan where you can get these RB powerplants.

I have said all of this to say this : WHY WOULD YOU WANT TO WASTE YOUR TIME PUTTING AN ENGINE WITH 150hp @THE CRANK INTO A CAR THAT ORIGINALLY HAS AN ENGINE WITH 200HP @ THE CRANK. THERE IS NO LOGICAL REASON...UNLESS YOU JUST WANT TO BE DIFFERENT.

Small engine in bigcar = bad performance and s***ty Fuel milage

Just like getting a full size truck with a V6. The smaller engine barely has the power to pull the heavy full size truck so it gets s***tier gas mileage than if you get a V8

mattheripper
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mys13240 wrote:This is the most rediculous this I think I have ever heard of. You put a skyline engine in a 240sx for these reasons. The RB's have descent power in stock form and can be opened up with ease, but the skylines are really heavy. The 240sx on the other hand is relatively light, but has a powerplant that isn't so ballzy without modifying heavilly. There are plenty of salvaged skylines in japan where you can get these RB powerplants.

I have said all of this to say this : WHY WOULD YOU WANT TO WASTE YOUR TIME PUTTING AN ENGINE WITH 150hp @THE CRANK INTO A CAR THAT ORIGINALLY HAS AN ENGINE WITH 200HP @ THE CRANK. THERE IS NO LOGICAL REASON...UNLESS YOU JUST WANT TO BE DIFFERENT.

Small engine in bigcar = bad performance and s***ty Fuel milage

Just like getting a full size truck with a V6. The smaller engine barely has the power to pull the heavy full size truck so it gets s***tier gas mileage than if you get a V8
Um...Skylines are less than 100kg heavier. Do you maybe think that with the Skyline having the boat anchor RB could maybe, just maybe, be the biggest contribution of that? Bottom line there is the Skylines aren't "really heavy". Its not like the KA has less potential. Think about what I gain; more displacement, weight reduction, and better weight distribution. I can continue in how your wrong about most everything you said but in the end KA's are SOO much cheaper to build and up here at least they come for free, thus why I have two running ones...so whatever I'm different lol that's fine with me.

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Razi
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You also gain a bad top end on the powerband, and a crankshaft that isn't fully counterweighted.

But, whatever.Good luck with it!

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blakexcore
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mys13240 wrote:This is the most rediculous this I think I have ever heard of. You put a skyline engine in a 240sx for these reasons. The RB's have descent power in stock form and can be opened up with ease, but the skylines are really heavy. The 240sx on the other hand is relatively light, but has a powerplant that isn't so ballzy without modifying heavilly. There are plenty of salvaged skylines in japan where you can get these RB powerplants.

I have said all of this to say this : WHY WOULD YOU WANT TO WASTE YOUR TIME PUTTING AN ENGINE WITH 150hp @THE CRANK INTO A CAR THAT ORIGINALLY HAS AN ENGINE WITH 200HP @ THE CRANK. THERE IS NO LOGICAL REASON...UNLESS YOU JUST WANT TO BE DIFFERENT.

Small engine in bigcar = bad performance and s***ty Fuel milage

Just like getting a full size truck with a V6. The smaller engine barely has the power to pull the heavy full size truck so it gets s***tier gas mileage than if you get a V8
QFT.

the ka24 is bigger than the rb20...ka-t = awesomeness

h00kerslayer7
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if you have 2 ka24de's id be interested in buying one from you if youd want to sell it

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Sil240
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If you are really looking for: "weight reduction, and better weight distribution"

Go with a SR.

All aluminum engine, shorter than the RB.Tons of potential and I'm sure there's probably other guys that have done it before.Also turbo already.

With a KA your gonna have to build it to make big power.I think with a stock KA motor you can make like 350 whp reliable. But thats with a turbo kit.So factor in the $$ for that, plus mounts, wiring, headache etc....

If your gonna do it, I would love to see it though.

Bigvinnie
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mys13240 wrote:This is the most rediculous this I think I have ever heard of. You put a skyline engine in a 240sx for these reasons. The RB's have descent power in stock form and can be opened up with ease, but the skylines are really heavy.
Dude the RB20 sucks. It's the worst engine of the RB's, you would seriously onl;y want one to be JDM cool. People praise the SR20 over teh RB20. swapping a KA24 into it wouldn't be bad. No replacement for displacement. The RB20 and KA24 share the same tranny so its just a matter of swapping out the cross member, wiring, etc.

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blakexcore
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how about putting an ls1 twin turbo in it?

http://www.youtube.com/watch?v=EmDOkoFSHhY


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dat925stunna
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mattheripper wrote:
Um...Skylines are less than 100kg heavier. Do you maybe think that with the Skyline having the boat anchor RB could maybe, just maybe, be the biggest contribution of that? Bottom line there is the Skylines aren't "really heavy". Its not like the KA has less potential. Think about what I gain; more displacement, weight reduction, and better weight distribution. I can continue in how your wrong about most everything you said but in the end KA's are SOO much cheaper to build and up here at least they come for free, thus why I have two running ones...so whatever I'm different lol that's fine with me.
you doin a na KA or KA-T? cuz you can get alot of torque from the SOHC KA im goin to build mine to be all motor no turbo (i want it to last) my boy built his he managed around 250-260ish RWHP dnt member RWTQ (real s*** btw no bs) and my other friend has an 05 S2000 my friends s13 took it out of the hole f22s dont have torque but they pull (wen Vtec kicks in)eventually the s2000 will catch up but way later though if i had a video id post it on youtube but my friend moved to FL he might be on nico i dont know im thinking really of a KA24e-T but dont know a safe psi to boost because i really want my motor to last but all motor is good its nice ka have potential believe it or not.... ka's are made in japan too so ya not jus SR's,RB's,and CA's all the jdm ENGINE lovers "ka's can have heat if you set them up right"

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Hooked on 240
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Your probably the only person thats going rb to ka.



GL with what ever you do.

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legit240sx
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.....poor r32

im sure alot of people wouldn't hate so much if you were planing on building it, so what are your plans?


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480sx
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OP - Dude.. Unless you go Ka-T your going to be sorely disappointed with the end result.
Bigvinnie wrote:
Dude the RB20 sucks. It's the worst engine of the RB's, you would seriously onl;y want one to be JDM cool. People praise the SR20 over teh RB20. swapping a KA24 into it wouldn't be bad. No replacement for displacement. The RB20 and KA24 share the same tranny so its just a matter of swapping out the cross member, wiring, etc.
God your a fvking retard. Get off my internet.

The RB20 is a great motor with incredible rev potential. Fairly cheap, until you start modding it lol.


Bigvinnie
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480sx wrote:OP - Dude.. Unless you go Ka-T your going to be sorely disappointed with the end result.

God your a fvking retard. Get off my internet.

The RB20 is a great motor with incredible rev potential. Fairly cheap, until you start modding it lol.


Go back to your cave homosexual your the only one on the on theinternet that seems to have problems with my opinion.KA24det>RB20det


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blakexcore
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480sx wrote:God your a fvking retard. Get off my internet.The RB20 is a great motor with incredible rev potential. Fairly cheap, until you start modding it lol.
Bigvinnie wrote: Go back to your cave homosexual your the only one on the on theinternet that seems to have problems with my opinion.KA24det>RB20det

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480sx
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Go back to the turn tables kid.
Bigvinnie wrote:

Go back to your cave homosexual your the only one on the on theinternet that seems to have problems with my opinion.KA24det>RB20det

Bigvinnie
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480sx wrote:Go back to the turn tables kid.
Sounds like someones jealous that they can do more than be a grease monkey. I'm not a kid either chump so watch your comments or get blasted with factual information.

Time to pull out factual informationFirst youtube vid of kat smokin RB20.7PSI kadet VS. 10PSI RB20dethttp://www.youtube.com/watch?v=jkhVRVD9KzY

Second Dyno "PROOF"RB20det at 1 bar of boost makes 141.1KW=189.9WHP

Third Dyno "PROOF"Import Tuners Greddy kit not even at 1 bar of boost and makes an easy 194WHP

If you want to talk smack atleast back it up. The RB20 head as I recall sucks on the flow bench. Needs alot of work. The sr20det head outflows the KA24de head, the KA24de head outflows the RB20det head. Go figure.
Modified by Bigvinnie at 7:41 PM 7/22/2009

mattheripper
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I hinted at it a little bit but I guess I didn't say flat out that I will eventually build it/turbo it. But obviously its going to be much easier wrapping my head around this if I get the engine running first as a NA motor. Then build it up and turbo it.

Essecially since the engine was free, along with all the money I've already made parting out the RB, if I keep playing my cards right I could have 350hp with out paying a cent. Doesn't seem like such a poor R32 anymore does it, legit240sx? How much did you pay for your RB20 swap anyway? And to Bigvinnie for keeping this thread KA-real

Does anyone know the KA inside out enough, to know everything I'd need to run it? I'm just stuck on electrical right now. Motor, transmission, driveshaft, fuel, radiator and exhaust are all hooked up. Also all the emissions stuff has been deleted.

Rod Slider
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Pics? That and really neither engine sucks. They all have there purpose, and all are better than a non-running engine! And from what I read the KADE's head outflows the SR's head. KA's are cheaper and easier to get, these facts alone make it worth it. Why don't you just sell the R32 and buy a nice S14 with a KA-T already? But that's like asking a pornstar with a big slong to trade it in for a not-so-big one.

Bigvinnie
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Rod Slider wrote:from what I read the KADE's head outflows the SR's head. KA's are cheaper and easier to get, these facts alone make it worth it.
No a KA24de head falls short roughly by 20cfm @ a .400 lift, not a huge drastic difference. If I can find the links I will get them for you which there was one at kat.org, and zilvia. In any case the KA24de head isn't a well casted head and has many casting imperfections that make the sr20 head better at flow.The KA24de does have displacement on it's side which helps atomization of air and fuel. The piston diameter is what allows the advantage over the SR and Rb20. RB20det using the smallest piston diameter is going to struggle for power because of its valve sizes which are limited or else there will become alot of valve shrouding. So because of piston size the SR and KA both have the advantage over the RB20. Some people even dispute that the KA is actually better on power than the RB25det because of valve sizes that can be used.

A factor that people disregard most of the time is bore size and how efficiently that bore size will works with valve sizes and curtain space. The more pistons there are and the smaller bore sizes will limit curtain space and valve size. This is one reason why larger bore less cylinder engines benefit from although it will inevitably lack in rev range as the bore and stroke become larger.

Rev range is a different aspect of the engine however and quite clearly the RB series out revs both the KA and SR by 1000RPM no doubt.

Just for comparison between the sr and KA head you can look at the two on top of each other and tell that the porting size of the SR intake ports are much larger than the ka24de ports.


Modified by Bigvinnie at 9:14 PM 7/23/2009

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480sx
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Kid, you can pick up RB20 motorset for ~1000 dollars. It, along with the Ca, is the predecessor to the SR and the rest of the RB series. The motor has such a short stroke and a FCW crank, with a little work you can spin it up to 8-9 k, spool a huge turbo and make massive power. Its an inline 6, an inherently efficient engine design.

You think throwing up those dyno sheets supports your opinion at all? Seriously, you are a retard.

LOL at calling me a grease monkey. Seriously hilarious lol. Again, go back to your tables and keep talking about K values.
Modified by 480sx at 10:12 PM 7/23/2009

ubernoober002
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Ive heard about this, it supposedly blows up the car

Bigvinnie
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480sx wrote:Kid, you can pick up RB20 motorset for ~1000 dollars. It, along with the Ca, is the predecessor to the SR and the rest of the RB series. The motor has such a short stroke and a FCW crank, with a little work you can spin it up to 8-9 k, spool a huge turbo and make massive power. Its an inline 6, an inherently efficient engine design.
You can get a KA24de for 450 bucks used, and after market turbo parts for about $550.HX35 turbo $150 at junk yardsturbo manifold $100 on ebaydown pipe SR for $45 usedInjectors at pick and pull from a Q45 for $12.00 an injector usedinter cooler and pipes $200willem rom burner for a ka24de OBD1 ecu $130 on ebay, header chip set for $8.00. A bin from a friend at ka-t.org, or the eccs forums.

Theres even room to play with if you want to rebuild the KA with stock internals and get new rings and gasket maker.

You obviously don't get out much. Rev doesn't mean s*** for spool. Go back to school and learn about thermal dynamic principles. it's about heat transfer which infact an engine with larger displacement will transfer more heat, thus creating faster spool. Rev range doesn't mean s***! If it did you would see little honda engines making a gazillion HP. All rev is an equivelant too is top speed, with the extended range of the RB it will go faster with the same gearing that it shares to the KA. A KA will generate more spool at 5000RPM then the RB20 will at 5000RPM, that is a FACT.
480sx wrote:You think throwing up those dyno sheets supports your opinion at all? Seriously, you are a retard.
Absolutely dude, because thats reality. It's proof with power at the wheels. What don't you understand about this basic concept? Are you mental? I guess so.
480sx wrote:LOL at calling me a grease monkey.
No starting a stupid argument with me, and name calling that has no base makes you a grease monkey.

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480sx
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Bigvinnie wrote:
You obviously don't get out much. Rev doesn't mean s*** for spool. Go back to school and learn about thermal dynamic principles. it's about heat transfer which infact an engine with larger displacement will transfer more heat, thus creating faster spool. Rev range doesn't mean s***! If it did you would see little honda engines making a gazillion HP. All rev is an equivelant too is top speed, with the extended range of the RB it will go faster with the same gearing that it shares to the KA. A KA will generate more spool at 5000RPM then the RB20 will at 5000RPM, that is a FACT.
BAHAHAHAHAHAAHAHHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAH11!!!1!!!!! Omfg, thanks. Dude on the real, that paragraph shows how your really nothing more than a blow hard who reads things and thinks he knows stuff. You read the wrong things, you dont know s***. You have very little if any first hand knowledge or experience in this area outside your realm of the interwebz. Everything you talk about is 'theory', and you dont know a significant enough portion of basic forced induction theory to hold a candle in an argument or discussion. Unless you are talking about it with other people who dont know jack. At least they can admit it..

Maybe you should 'get out' and see these 'little hondas' putting down a 'gazillion hp' with a b or k series with a massive snail spinning to 9-10 grand and running sub 10 second passes pushing 1000 crank hp like its their job. Or maybe you should talk about how revs dont do s*** for spool to the guy running a 4000 hp 4 cylinder funny car taching out to 15g or so.

Dude on the real, thanks. That paragraph was hilarious lol. To much misinformation and misconceptions and general FAIL to even get into. Go tune your motor for iradium spark plugs kid.
Bigvinnie wrote:No starting a stupid argument with me, and name calling that has no base makes you a grease monkey.
Damn you even have the ability to redefine 'slang' to your own convenience. Vinster, you really are the man.
Modified by 480sx at 6:48 PM 7/24/2009

Bigvinnie
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480sx wrote:
BAHAHAHAHAHAAHAHHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAH11!!!1!!!!! BLAH BLAH I truly am hard gay, I NEVER HAVE PROOF OF ANYTHING, AND CHOSE TO BE NON CONSTRUCTIVE AND OFFEND PEOPLE.
So what have you proven? Nothing. No dyno's, No Pictures, Nothing. Your non constructive approach, and claim to know sh^t attitude. Your a waste of my time, and everybodys for that matter. the dude that started this thread obviously isn't happy with the RB20, and yiou think for some reason you will sway him. Atleast he's owned an RB I doubt you ever had. I have proven enough in this thread. When you can be constructive rather than a child maybe people in this forum would take you seriously. You are the butt of the joke..

Also all this non sense about the RB series of engines being fully counter weighted.... Explain why the RB26 and RB30 have halfweighted cranks, and why an RB26 out rev's an RB25 mister you know sh$t.


Modified by Bigvinnie at 7:54 PM 7/24/2009


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