Im so sick of the SR!!!

Information on the naturally-aspirated KA24E and KA24DE engines.
Structure240sx
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you could start a trend Mad. put a turbo ka in ur car and see what happens


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Rev_D21
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I get people thinking I did the SR swap on my altima all the time, sorry to disappoint but the KA is a pretty sweet and easy to work on motor. I ride with Bluebird badges on my altima but what people don't know is the Aussie Spec Bluebird SSS came standard with a KA24DE, not the SR20DET. I do plan to go KA-T next year perhaps. There is no replacement for displacement.

The SR20 swap is a bandwagon thing and people are paying big bucks to do it. I don't see the reasoning behind that except people have too much money to spend on stupid **** when they should be buying themselves an education. Turbo what you got and don't believe everything you read.

Structure240sx
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there are some benefits to the SR tho. the higher redline doesnt really make up for the displacement issue but the compression ratio does. what is it like 8.2 or 8.5:1. i know people have takend the ka to 360-400rwhp on a stock ka but secret services got 539rwhp on a stock sr. the major downside to me is that fact that parts are much harder to come by and if u blow your engine u can find one in a junkyard.

what am i doing. sorry for being a hypocrite, ka vs. sr no good

cosmo
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Structure240sx wrote:but secret services got 539rwhp on a stock sr.


Yeah but with 100+ octane and hours upon hours of tuning. I say for 91 octane and the average Joe with no time to tune his engine for 30 hours, the limit is still around 400hp

Structure240sx
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that average joe would probably only get 300rwhp ouot of a stock ka then. enough debating both are good engines but just one has been put high above the other

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McAdam
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that is until the SR20 burps a rocker arm when you miss a shift and send the tach above the magical 8300rpm point.

some guy with a hacked MAF is running right around 260RWHP on his KA, thats a hacked maf, for christs sake! I think he is only boosting 10lbs? if that? I know another guy put his turbo (t3/to4 borgwarner IHI hybrid) and he is only running 5lbs right now and hes getting 225RWHP.

I would say the average joe could get 400rwhp out of his KA as long as he could stave off detonation. those ringlands are the real bad parts.

McAdam

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McAdam
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My bad, I jsut checked. he is running 248RWHP and 255RWTQ with a hacked MAF set-up. but its only at 8lbs. Hacked MAF KAT there ya go

more power to the KA, lol!

McAdam

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ghostchild316
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I feel all of your guy's pain too.I get the SR/drift **** all the time.It really gets old..QUICK...

I love my SOHC KA much.

169k mi. and has never let me down.

I'll turbo it in the future:ylsuper

Chingon
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ah so much talk about the ka...gotta love it. Anyways, I'm figuring that I can get a really cheap ka to work and learn on but was wondering why so many people say it's not a "boostable" engine. What needs to be changed that is of bad design for boost? Why as some ppl say isn't the ka as rev happy and as "smooth" as the sr? And how hard is it to go all motor instead? For say 300hp? Sorry to hijack, is just that I love my ka too, and figured i could get some good input.

Bryson
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you'll only reach an all motor power of 300 with INSANE cams and a huge compression ratio combines with an extremely high ammount of NOS.. don't waste the money.

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fiznat
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I've never heard of a NA KA running 300hp. Check out the NA KA24 section and you'll see...

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There isn't anyone on here who hates the SR as much as I do. I've never even owned a KA powered vehicle and I still prefer it over the SR. I'm in love with the 4 banger stroker motor. The head design is great minus the need for larger cams and a serious port job. But with 248/248 cams and a good hand port job you've got a very efficient little rocket. Add some boost and your well on your way to fun. I've owned 2 Skylines and have driven every car in Japan from a GTR down to the lowly NA versions of the 180 and Skyline. The KA gets my money every time. Even over the RB26 nowadays, only cause the parts are so friggin expensive.

If Nissan had used some better pistons the KA would be an animal. So you throw 750 bucks at the block and install your favorite turbo kit. Bam....easy 300 horses and a car torque so fun you'll think your sitting behind an 8cyl.

For the record, I've driven some very mean SR's. I've even riden in some pretty damn quick CA's. So the other motors are not without style, grace and good potential. But it will sure be nice to see the KADET get some more of the credit.

WD

Chingon
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hehe, yeah I had to throw the question in there about an all motor ka...It's just that I see the formula atlantic (4age) 1.6l pushing 240 horses, so I thought,...why not with twice the displacement? But then again, a formula atlantic is 15k$

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spec-u-later
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Yeah! To hell with the SR. I hate affordable motors that are capable of great power with little money. Those things suck!

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SR=2300-3000 or more (not including S15)FMIC = 700 (get a good deal)Exhaust = 400Turbo = 700 (you get a good price because the stock T25 cant boost much over 250hp)Injectors = 400ECU/piggyback something = ~500

For the KA:FMIC = 700 (get a good deal)Exhaust = 400Turbo = 625 (you get a T3/T04E from Cheapturbos.com)Injectors = 400ECU/piggyback something = ~500exhaust manifold = 250-600

Umm yeah, so that means that to get 300hp, it's cheaper with a KA and it's been proven to last. If you rebuild the KA...it'll be closer to equal. SR's are a rip off for what they are (a 13 year old engine that's been beat on then sold for 2500 dollars when it was bought from a Junkyard in Japan for 500) I'm excluding newer SR's because nobody seems to ever get them.

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nathan, not to be a party pooper, but I think you need at least reinforced internals to push boost to produce 300hp on the ka (for reliability reasons) not that i'm against the ka by any means though.

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yea forged pistons thats it another 400. An this thread is not comparing engines theres a whole other thread about this. This one is just ranting about how just because i own a 240 doesnt mean I want an SR. Today even I had 3 ppl say wut u need to do is get an SR. An i reply well u gimme a nice bj an 4000 bucks sure, other than that ill take a KA-t over an SR anyday.

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spec-u-later wrote:Yeah! To hell with the SR. I hate affordable motors that are capable of great power with little money. Those things suck!


This isn't a debate on which is better and for why. Its the fact that the KA is a sweet motor that every one gets rid of. Oh, and how does it get any more affordable then modifying the motor thats already in your car?

Nathan, I agree that 300 is easily attainable with stock internals. Kill detonation and save the ring lands and you should be fine. So a FMU alone isn't going to cut it.

Its good to see a large KA following. Once we get a few more high HP KA's out there, then we'll get a little more attention. I've talked to a few magazines already that I have friends working at. So I know I can get my car in the pages. If they let me tell my own story, I'll be sure to throw a few SR comments out there.

WD

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kingjag88
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Quote »The sr does have direct injection[/quote]

I can't say I've heard of a "direct injection" SR20 SFourteen but I may be mistaken, unless you mean "direct ignition," which to my knowledge is on all SR20DET's.

Nathan
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You dont have to have forged internals for 300hpish...they just make you feel better, hence I have them :)

SingleCamSam
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If the D240T can push 350whp on stock internals i'd say 300 is MORE than safe. I don't think we've found the limit of the KA yet.

SloMoe
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T. Y. Yap's s14a KAT is pushin 318 rwhp and 329 ft/lbs. of torque on stock internals, and I might add has been doing so for 40,000+miles :)

rco8786
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There's actually a guy around here building an NA KA..I thought that was original. cool guy too.

Chingon
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hmm excellent to know the capacities of the ka, thanks guys....on what level of boost? 12-15?

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MagnumP_I
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Wow this thread just taught me alot about the KA I always knew it was good but not that good. I just bought a 240 an I guess i was lucky because it was a close friend I helped get his car running and it has a SR already an I only paid 3gs so Im happy besides the Koyo Radiator I have to weld from a leak. Also one of my friends has a KA S14 and he wants to turbo it but hes not sure if he should save up for SR or KA-T to track it?

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Reno
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MagnumP_I wrote:I Bumped an old Thread... YAY!!

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ditto

240RB1
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i work at goodyear and yesterday one of my co-workers cousins cam over to get a rotate and balance done and when he saw my car he asked me is that yours i said yea then he said you got an sr20det? i said nope im savin up money to boost my ka he then said why that motor is s**t i just lost my respect for him after he said that. he drives a tauras sho- i dont understand why people start talkin about somethin they have no knowledge in

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idriftnsj
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hey stucture240sx where r u from in sj

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-RJ-
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!240RB! wrote:i work at goodyear and yesterday one of my co-workers cousins cam over to get a rotate and balance done and when he saw my car he asked me is that yours i said yea then he said you got an sr20det? i said nope im savin up money to boost my ka he then said why that motor is s**t i just lost my respect for him after he said that. he drives a tauras sho- i dont understand why people start talkin about somethin they have no knowledge in
hahah i know 4 people with POS cars telling me that the KA is garbage. i think people always mention SR is because they think theyre cool because "Oh I know that SR motors go in the japanese cars and people use them to drift, so i am going to make fun of this guy becuase i know the SR motor is better even though i never driven or even rode in a SR powered car before, and my wang is small."

thats what i think


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