Is your NA/ KA24DE "fun"?

Information on the naturally-aspirated KA24E and KA24DE engines.
Touge Runner
Posts: 17
Joined: Wed Oct 30, 2002 11:27 am

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The reason I ask is I cannot swap an SR20 due to emissions here in Ontario Canada, so im left with modding the KA24DE (NA, since I dont want to run boost on an engine that will have higher kms. so please dont recommend boost)

I know going NA on this engine doesnt compare to boost, but for those of you who have done it, was it worth it?

What kind of 0-60 times/dynos have you accomplished?


Daunttless
Posts: 3890
Joined: Sun May 12, 2002 7:20 am

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You are unfortunately looking at like 2000+ dollars in components + labor for 200hp, the only person who can tell you if its worth it or not is you. : )

R240NA
Posts: 462
Joined: Sun Sep 15, 2002 7:43 am

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Don't listen to everyone. I love my KA. 159.8rwhp at last check, and it's lots of fun. 400rwhp is cool as hell, but pretty damn useless for everyday driving. I don't want to go into the motor yet because I get into enough trouble, local laws and road regualtions will only allow for so much anyway.

jrc90240sx
Posts: 455
Joined: Mon Jul 29, 2002 9:21 am

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I was wondering if you carry any KA24e parts? I am finally getting my rebuild underway, and would like some info form you if I could. I am looking to do a middle of the road rebuild, so if I want the engine can take some boost later. Do you sell any rods, and pistons?? KA24de pistons and rods should work if the piston is flat top right? So what kind of options do I have? Do you know how much I might be able to bore over?

Here are my goals160-180 rwhp NA260-300 rwhp Turbo

shouldn’t that be possible? Oh and if you do sell parts send me a email at [email protected] Thanks

Joe

Touge Runner
Posts: 17
Joined: Wed Oct 30, 2002 11:27 am

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Thanks for the feedback...im not looking for 200 at the wheels NA, id ba happy with a 15.0 1/4 mile and solid suspension for the touge... Thanks!

Boehm
Posts: 22
Joined: Sun Nov 03, 2002 11:46 am

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For togue (drift) I feel that NA is the best route that you can take. (Same for autocross)

Once you start loosing weight from the rotating mass the engine becomes really much more responsive.

A moderate, well built NA setup will also do just fine at most stoplight drags, No one (with the probabe exception of AWD cars) can unload 400 hp in first or second gear.

In all, I am very happy with my NA KA. (And this is from someone who has owned 2 R32 Skylines, a GTS-t and a GTS-4, and a CA Silvia)

Touge Runner
Posts: 17
Joined: Wed Oct 30, 2002 11:27 am

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Quote »A moderate, well built NA setup will also do just fine at most stoplight drags, No one (with the probabe exception of AWD cars) can unload 400 hp in first or second gear.[/quote]

Very true, what is your definition/price range of a moderately built NA engine? The KA specifically...

Boehm
Posts: 22
Joined: Sun Nov 03, 2002 11:46 am

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I am putting down about 155 Wheel HP, depending on the weather :-) according to the Apex'i rev-speed meter. (I've seen it read as high as 185...but that was at 100+mph) So I claim 155.

I've invested less than $1200 in engine/transmission performance (including a clutch/flywheel swap). I of course would like a little more...but who wouldn't.

BTW I am using Ebachi Sportline Sprints, KYB AGX shocks, and Falken Azenis tires for autocross, and can easally pull over 1g lateral. The adjustability of the AGX is wonderful

technoman
Posts: 218
Joined: Sun Aug 25, 2002 6:07 pm
Car: puss

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I agree with R240NA My KA is making around 160Hp with lower torque. 152LBS torque because I dont use a Cat. My car feels fast and the Orlando police depot agrees my car is fast so I really dont need more HP because I will not have a drivers license.

technoman
Posts: 218
Joined: Sun Aug 25, 2002 6:07 pm
Car: puss

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I use a G tech pro and it says Im putting down 178hp sometimes on cool cool nights. But im going on what the dyno says and I have the same mods as the other guys here making 155 or so.Using the G tech pro late at night in about 68 degree weather I can put down a 14:91 at 82mph

Zebrahead
Posts: 675
Joined: Mon Aug 05, 2002 7:08 pm
Car: cars, basketball, girls, fishing

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What kind of mods are ya'll running? My KA has 68K miles on it, w/ a intake and exhaust. I want to complete the picture w/ a header and a new clutch. What kind of HP do you think I'll put to the ground? 140? 150? What more will I have to do for around 160?

Nick.

technoman
Posts: 218
Joined: Sun Aug 25, 2002 6:07 pm
Car: puss

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A JWT ecu put me at 160hp to the wheels with out it It it put down 148Hp to the wheels. In a 97 degree Dyno room.

technoman
Posts: 218
Joined: Sun Aug 25, 2002 6:07 pm
Car: puss

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I want a new fuel pump and maybe shave the head for 10.5.01 compresion I should have close to 180Hp

Jarret
Posts: 58
Joined: Sun Oct 27, 2002 7:00 pm

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Touge, Keep your KA, the SR don't pass Ontario drive clean, nor does a JWT ECU upgrade for that matter. I have a Powerdyne/Paxton supercharger running 6psi on the stock engine. I run @225 hp with the modest other mods I have on the car.It's all I need to dust upstart civics and upset the odd CHAMEROmank!

The NA KA is just a dandy with proper breathing, lightweight pulley/ flywheel/flexplate, headers, and a good exhaust. Then go to work on what makes driving the 240 everything.....springs, swaybars, strut tower braces, shocks...etc

then you'll KNOW exactly what I mean...

good luck!-Jarret

Boehm
Posts: 22
Joined: Sun Nov 03, 2002 11:46 am

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Jarret-Any pics of the supercharger install? I would like to see how you have that set up.

technoman
Posts: 218
Joined: Sun Aug 25, 2002 6:07 pm
Car: puss

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I would also like to see the SC set up as well..

Touge Runner
Posts: 17
Joined: Wed Oct 30, 2002 11:27 am

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Ok, so the SR20 is pretty much out of the question emision wise, im hesitant to run FI on the KA since it'll be a high KM engine....

jrc90240sx
Posts: 455
Joined: Mon Jul 29, 2002 9:21 am

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I would also very much like to see your SC setup. I know i wouldnt get as much power out of a SC for the same boost as a Turbo. I still like the idea of a SC more then a Turbo, as i am just looking for a "set it and forget it" setup.

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Megaseth
Posts: 3863
Joined: Wed Aug 14, 2002 5:00 pm
Car: 2002 Pathfinder SE
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im also looking into something similar to the other guys. I was thinking about this: JWT popcharger, new injectors, JWT ECU, possibly a header, and a new exhaust thats 2.5". i was looing at just a muffler with the rest done by a shop. i dont want to go into internal mods, as i dont have a lot of time where i wont need my car. can anyone else give me some suggestions?

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themadscientist
Posts: 26254
Joined: Tue Nov 12, 2002 3:30 pm
Car: R32 GTR, DR30 RS Turbo, BRZ, Lunchbox, NSR50 Sportster 883 Iron
Location: Staring down at you with disdain from the spooky mountaintop castle.

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Silvia CA18DE automatic with HKS muffler, $300.00TODA lightweight flywheel, $75.00Junkyard five speed setup, $100.00Junkyard salvaged shortshifter, $25.00 Turbo Silvia viscous diff, FreeHKS 4-2-1 header, $75.00Apexi SAFC, $100.00Basic tune up and clever flow and heatshielding tricks, couple of afternoons and about $100.00

Go to the Drag Meet (only 150meters though, no 1/4 mile round here) and pull identical times as some goof in an R33 GTS-T

PRICELESS!!!

I get the feeling the KA is likely a little faster than the CA due to it's bigger displacement, I roughly calculated a high 16 1/4 mile for my low buck toy without opening the motor. Cams, high compression, headwork and I am sure it would break into the 15sNot much to speak of but on the cheap it's damned fun!

Boehm
Posts: 22
Joined: Sun Nov 03, 2002 11:46 am

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mad scientiest-not too hard to beat a stock GTS-t.

Mine ran mid 13's with bolt on's.Now my NA-NA 240SX is running low 15's with bolt on's.

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themadscientist
Posts: 26254
Joined: Tue Nov 12, 2002 3:30 pm
Car: R32 GTR, DR30 RS Turbo, BRZ, Lunchbox, NSR50 Sportster 883 Iron
Location: Staring down at you with disdain from the spooky mountaintop castle.

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that is what a lot of people say. Had I been under the hood and in the driver's seat of the R33 I would not have won, uh in the Silvia I mean, it's confusing racing yourself! I have owned several Skylines, none have been over 300hp because I don't have that kind of coin and I keep shuffling through cars but all have been faster than the Ts I see rolling around these days. I can get about half of them with my wife's 20valve Corolla, what gives?I am reminded of the formative years of the 5.0 Mustang movement, a car with potential but with a lot of non-driving goofs making it and the real enthusiasts look bad.

Boehm
Posts: 22
Joined: Sun Nov 03, 2002 11:46 am

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mad scientist-Where are you located? Japan? Austrilla? NZ?

Daunttless
Posts: 3890
Joined: Sun May 12, 2002 7:20 am

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he's in Okinawa.

midnightshadow
Posts: 61
Joined: Thu Aug 29, 2002 2:41 pm
Car: cars, snowboarding, mt biking

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some parts of canada are just not lucky enough to escape emissions testing. In BC they have it in the lower mainland, must be a big city thing(i guess they just don't care in the prairies). I am lucky enough to live on Vancouver island so i can do whatever i want to my car :) oh the endless possibilities without the emissions police.

midnightshadow
Posts: 61
Joined: Thu Aug 29, 2002 2:41 pm
Car: cars, snowboarding, mt biking

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pop the hood and check to see that your accel cable is giving you full movement at the throttle valve end.

HighAspirations
Posts: 6
Joined: Wed Jan 08, 2003 7:18 pm
Car: Reading Sr forums =)
Contact:

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Why are all you guys complaining about not being able to pass emissions tests in Ontario. If the engine was not offered in that car stock than you can claim hotrod status and you get much higher emission tolerances and the SR can pass

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KarmaPolice
Posts: 108
Joined: Mon Sep 02, 2002 8:59 am

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Yeah man, lets see this charger. I'd love to supercharge my ka. Details please.

Julio Bro!
Posts: 290
Joined: Tue Jul 30, 2002 11:01 am
Car: 1993 240SX SE, manual transmission, Stillen intake & strut bar, Magnaflow cat + custom cat-back, NISMO sus

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Hey people, http://www.kennebell.net works with the twin-screw type supercharger and have a nice kit for the Miata. It's smaller and lighter than an Eaton, so it should be easier to adapt for the 240SX. I wrote them but the answer was "nothing available or in the works for your application", which is kind of strange when a usable kit is available.

I think that what they need to know is that there are people willing to buy it, so send your messages, maybe the quantity will convince them to, at least, test one. Alright, go ahead and ask them to at: [email protected]

apzak
Posts: 451
Joined: Sun Nov 10, 2002 8:55 am

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Quote »i just got it today and when i took it for a spin there must have been only 1 1/2 inches travel between no gas and floored. I checked under the pedal and there was some sort of ( governing?) plastic piece which added about another inch to the amount of gas i could give it... removed that promptly. It still seems even when i floor it, its not full throttle...[/quote]

Does removing this plastic actually do anything? Could it do bad?


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