How does this sound....KA-T Plans

Information on the naturally-aspirated KA24E and KA24DE engines.
driftin8ez
Posts: 1155
Joined: Thu Mar 18, 2004 4:42 pm
Car: 92 Coupe, Turbo Miata
Contact:

Post

Ok i have a 92 240sx just wanted to get that out of the way. here are my plans for my KA-T project. Ok instead of doing a rebuild on my 164k engine. I want to buy a 98 or other low mileage engine. SOmething with like 20-40k on it from an s14. Just the long block. I will then build that engine out of the car. injectors, pdm cams, clutch, fpr, turbo kit of course, head polish stuff like that. Then when i feel it is time i will drop it in. Does this sound ok. Is it possible to put and s14 ka into an s13 with a ka24DE? If that is possible this seems to be the route seeing as a low millage KA should be the same cost as a rebuild without all the down time and labor charges. WHat do you guys think?


ultimatuc
Posts: 447
Joined: Wed Apr 28, 2004 8:13 am
Car: fast cars, big trucks, sluts

Post

better get the harness and ecu. you'll need it. then you will have to get a stand alone, because JWT says they cant remap ecu's 97 and later. youre best off getting a low mileage 95-96 w/ ecu and harness.

good luck

driftin8ez
Posts: 1155
Joined: Thu Mar 18, 2004 4:42 pm
Car: 92 Coupe, Turbo Miata
Contact:

Post

alright so I need to find a low mileage ka from a 97 or below. If i get a 95-97 i need the ecu and harness. Do they have KA in japan. They usually have low mileage engines. Maybe i can import an s13 ka from japan. Besides this with the engine does this "plan" sound ok?

User avatar
hannibal
Posts: 9680
Joined: Wed Sep 11, 2002 2:38 am
Car: Red Line to Glenmont
Location: Washington DC

Post

Sorry no S13 or S14 KA's in Japan. I dont know if theyre available in JDM trucks either. You can find them in the US for $400-500 (complete from motor to transmission, I think) with 40-60k miles.

I think what ultimatuc said is correct: JWT can only remap the 91-96 KA24DE ECU. If youre using SAFC or eManage, you could use any engine (and its ECU) from 91-98.

Can you use 97-98 KA with a 96 ECU?? Or in general, a KA and ECU from different years??

User avatar
fiznat
Posts: 5651
Joined: Sun Sep 15, 2002 10:15 am
Car: Grown up :(
Contact:

Post

I dont know what you guys are talking about. He is just planning on swapping the longblock- the block and the head. He definetly WONT be needing the S14 harness and ECU for that. What you will have to do (and I know because this is also what I am in the process of doing), is simply either use your S13 intake manifold and all it's gizmos, or use the s14 one and you'll have a few dangling connectors and plugged hoses.

Why would you need a whole 'nother ecu, nevermind harness, to run just another block and head? They're pretty much the same... the only thing that you need to watch out between S13 and S14 KAs is the emissions/OBD changes, and that is largely covered by using the S13 intake side's vaccum/fuel/etc setups.

Also on another point, if you are going to rebuild the engine anyways- why are you thinking about spending extra money on an extremely low mileage S14 KA? I understand the desire to have it new, but that's honestly not really necessary. I am using a 97 KA for my turbo project - building it out of the car just like you are planning - and with 90,000 miles, the thing is still in beautiful condition. Check out my cardomain site in my signature for pics. ...or maybe by "build the engine" you meant just cams and crap (which are probably also unnecessary on a stock internal motor, but thats another story...).

Anyways, good luck with your project-- keep asking questions (dont forget to search), and heh... dont accept what anyone says without least a second opinion from someone who's been here for a while.

ultimatuc
Posts: 447
Joined: Wed Apr 28, 2004 8:13 am
Car: fast cars, big trucks, sluts

Post

^ it was late, and for some reason I was thinking he had a sohc.

IWannaS15. I have a 97 w/ a 96 jwt ecu. and it has proved more trouble than its worth. I now have to swap a 96 harness and manifold, and all sensors.

User avatar
hannibal
Posts: 9680
Joined: Wed Sep 11, 2002 2:38 am
Car: Red Line to Glenmont
Location: Washington DC

Post

I stand corrected.

I thought the ECU had to match the head. But Fiznat says its just the intake mainfold that has to match. Makes perfect sense since thats were most ot the sensors are.

Fiznat, thanks fr the correctionAnd, driftin, sorry for the misinformation

driftin8ez
Posts: 1155
Joined: Thu Mar 18, 2004 4:42 pm
Car: 92 Coupe, Turbo Miata
Contact:

Post

dont worry about the misinformation ultimatuc, Everyone makes mistakes. Also thanx for the correction and taking time to write that long epic of a post fiznat.

You were right fiznat, all i want to do is get a low mileage engine so i dont have to rebuild it. That way i can spend the extra $$$ on a port and polish and some pdm cams. That is about it on the engine internals. Just want to get the engine flowing and reving a little freer. If it is a waste i wont do it but i though it would give me a few extra HP in the long run.

edit* looked @ your car domain site. Sweet. What you were saying about miniaml down time and dropping it in when it is built is the same way i was planning to do it. Keep that updates i want to see how your progress is.


Return to “KA24E / KA24DE Forum”