auto ka24det?

Information on the naturally-aspirated KA24E and KA24DE engines.
numatik
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Do you guys think it would be better to...

A: get a stage 2 Nsport kit with ball bearing upgrade for my automatic s14 w/42,000 well maintained miles?

B: do an swap for a CA/SR w/a 5 speed?

My mechanic friend keeps telling me to turbo the current engine because its in great shape, and sometimes automatics mated with turbo motors can be as fast as manual trannies. He said we could install a big transmission cooler to be on the safe side. He said he would install the kit w/me.He is a guy I can really trust.

You also have to take into consideration that I have cams from a 91 ready to put in the KA as well as an ASP pully.

oh yeah, the mods list is a joke in case you didn't know.

Well...


Silvia007
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I'd say no matter which way you go, you'll be fast. If you like it automatic... then stick with it, like they say, why change a good thing. I'm just not too confident on the KA's ability to run boost as reliably as the CA or SR. I know my friends SR has like 9 lives, ran with no oil pressure for a week (turbo failed due to lack of oil), we replaced the oil pump and everythings fine. Anyway, that's what I think.

numatik
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OMG! I was just about to write this post when my alarm pager started to go off! I grabbed my trusty expandable baton and ran to my beloved 240 to kick some a$$! I quickly stuck my baton in my pants when I saw the officer standing next to my car as it was being DRAGGED up onto a flatbed! I pleaded my case and they let me go! COOL! my alarm just payed for itself!

anyway...Whoa that guy with the sr is damn lucky. yeah, i was hoping for fast, or maybe damn fast. Right now I'm leaning towards KA, because I already have the cams (or cam because I guess only the intake cam from 91 is needed for turbo KA applications), and the pully. I am just worried about the auto. I don't want to dump a butt load of money into my car, then get beat by everthing and it's mom cause I'm running an auto.

Infamous
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auto's are good for bracket racing....

numatik
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Do you think it would be an ok daily driver?The only formal racing I plan to do is at the drag strip.

S13Ka24e
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There is a member here name Wolf240SX that is currentlying running nsport stage 2 kit and iirc he was running around 13.5 at the 1/4. He was on an automatic and i don't think he was having any porblems with it. I would stay auto, i like my auto just fine and being stuck in chicago traffic sucks so having an auto is good for me. Do what you want to do, but if i was in you, i would go for the nsport stage 2 on the auto.

numatik
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cool, thanks for the advice.I'm in Boston and traffic really sucks. At least work is like a 1/4 mile away. 14 sec to get to work, that will be cool!LOL!

Structure240sx
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i've read back yard productions had an auto kat with about 330 rwhp dont know how long it lasted they did do a 5spd swap. generally i;ve hear that the stock transmission is good to about 250rwhp. a transmission cooler will definitly help. and like said above about wolf autos can still be quick. with the milage u got definitly sitck with the KA more torque and parts are easier to get.

S13Ka24e
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Structure240sx wrote:generally i;ve hear that the stock transmission is good to about 250rwhp. a transmission cooler will definitly help.


Really? because i heard that the auto transmission in good condition with tanny cooler is good to atleast 350hp....

numatik
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yeah, thats a big difference (250-350)

Structure240sx
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it is just what i heard tho. i should start talkin from experience instead of out of my ***. try talkin to aries he was just selling a built auto transmission. he should know the limitations of them pretty good.

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KoukiS14
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I woulda THOUGHT that an auto KA turbo would suck.... but, Marty King proved me wrong!!! I believe he was the first to install Fmax kit in the U.S. (98 LE), along with a guy in Canada. . so kinda. . shared information as they went. . VERY NICE CAR. . he sold it to a "friend of a friend"... for like 14k!!!!!!!! Car was better than showroom condition.

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WDRacing
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My first Skyline was auto, it was pretty quick. I recommend a 3000 stall converter and a big transmission cooler....

WD

nlzmo400r
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i think ur only problem would be reliability, the sheer fact that ur 240 is ur daily driver makes me want to lean toward the CA or larger SR, its just safer as far as running boost, but its up to u, and if tuned properly, the turbo KA, can be a strong reliable motor, be careful,and thanx for takin it to the track and not on the streets, atleast not too often anyway :)

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WDRacing
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No offense there Nizmo, but you have no idea what ur talking about. A forced induction motor is a forced induction motor. All 3 of the engines you listed will explode without the proper tuning. The CA and SR run well with boost cause they're ECU's are programmed to run with boost, however, if you turn the boost up, you have to add fuel just like the KA.

To say the CA or SR is safer to run boost is completely wrong...

WD

Jeff240sx
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Don @ PDM told me a while ago that the stock 240sx transmission was good to 350rwhp.Also, Level10 does valvebody upgrades, and can acquire a high stall torque convertor.I had an auto KA-T untill I blew it up at 18psi (the motor) and decided to swap to the 5-speed for sheer fun (and the BOV sound :) )Anyway.. I was about .4 seconds behind another similarly modded KA-T with a 5-speed. 14.8 at 4.35psi vs. 14.4 at 4.35psi. Both of our cars were making 205rwhp at the wheels, due to the fact he dyno'd his with the EXACT setup I had. Anyway.. it won't be that bad.-Jeff

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GirlRacerS14
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I wouldn't personally worry about your KAT being a daily. I've driven mine daily for well over a year and half at 11 psi. It's still just as strong now as the day we installed the turbo. Besides, KA's are expenable....you can find them super super cheap if you do blow it up...

I'd say Turbo the KA, even if it is auto.... :angel

GR

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sk8erguy1501
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What would be a safe but still performance wise amout of boost to run on a KA? Wut about a buil up SR? Thx.

numatik
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Think the stage 1 Nsport kit coupled with a 91 intake cam would run too lean?

Just got my 91 cams today!


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