Adding a Turbo to a Stock KA24 (Noobs Read)

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
pella
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hello all. i am a noob! i have a 1995 s14 with a blown KA24 engine and a auto trannie. i just bought the car yesterday as is. it is stock with the exception of the failed s15 front end conversion lol, but hey the headlights and carbon hood are cool. i am looking for any advice, tips or critcism(where needed). i learned alot, and had multiple questions answered at the start of this thread. the original plan was to buy a whole sylvia front clip and do the swap, but the nazis in cali wont let that happen. so now, im going with the KA-T. im just worried about the smog situation. is it really feasable to remove all the stuff involved with the turbo every two years for smog? also, a good KA-T rebuild kit with everything to make it "bullet proof" so i dont blow the damn thing up. and what does a running stock KA with a 5 speed trannie worth? mine has an auto transmission.


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WDRacing
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If it's just a sniffer test you have to pass and not a visual you can pass the sniffer with the turbo on easily. You can also have the EGR tube connected to your down pipe so that all your smog stuff works like stock.

WD

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HGOTBOOST
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Great read answer alot of questions in my mind right now.

njfinest240sx
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werd that helped out alot

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Kouki_Projekt
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I have a quick question, I'm about to go ka-t and I've been told that i need to buy an OBD2 ecu if I want to tune my ecu because the stock OBD1 ka ecu canno be tuned... is that true?

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biggie
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Kouki_Projekt wrote:I have a quick question, I'm about to go ka-t and I've been told that i need to buy an OBD2 ecu if I want to tune my ecu because the stock OBD1 ka ecu canno be tuned... is that true?
That's the opposite of the truth. ROM tunes are available for OBD1 (less than 1996).

I assume you have a '97-'98 based on your name. So you need a '95 ECU to ROM tune. But will have the CEL light on and will fail inspection if you are in a State/County that has OBD2 inspections.

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Kouki_Projekt
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thnx for the info biggie

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Caveit77777
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So I've learned quickly that most of the people in the KA-t section on nico are waiting for WD's answer haha. Nice writeup(s)

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Chris28
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Caveit77777 wrote:So I've learned quickly that most of the people in the KA-t section on nico are waiting for WD's answer haha. Nice writeup(s)
It's because we all fear the wrath of the worst moderator on the face of the planet.

:couch

Either that or it's because he knows what he's doing haha.

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WDRacing
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When we figure out custom titles again Chris...you're first on my list buddy...lol.

tmoneythabest
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nice write up help out alot

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S13_RB25
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Just a quick question, would the stock compression ratio of 9.5:1 be safe to boost and make around 280-300whp??

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biggie
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S13_RB25 wrote:Just a quick question, would the stock compression ratio of 9.5:1 be safe to boost and make around 280-300whp??
With proper parts and tune, yes. I'm currently at 282hp.

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WDRacing
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S13_RB25 wrote:Just a quick question, would the stock compression ratio of 9.5:1 be safe to boost and make around 280-300whp??
Easily attainable with an off the shelf tune these days. Match your fuel management parts to a good tune, Enthalpy is currently the best from what I've read.

WD

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Chris28
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Image

Figured I'd post this in here since this is with a stock KA. 280 whp is easily attainable with the right supporting mods, but I recommend at least 550cc's and a z32 MAFS before running more than 8 psi of boost.

Specs for people finding this thread by searching: 370cc injectors, stock MAFS, EFI Specialist Tune, GTi-R t28 turbo.

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S13_RB25
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Awesome, just one last question. Has any ever used or heard about this turbo mani for the ka24de:
http://www.importperformanceparts.net/

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WDRacing
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Chris28 wrote:Image

Figured I'd post this in here since this is with a stock KA. 280 whp is easily attainable with the right supporting mods, but I recommend at least 550cc's and a z32 MAFS before running more than 8 psi of boost.

Specs for people finding this thread by searching: 370cc injectors, stock MAFS, EFI Specialist Tune, GTi-R t28 turbo.
Didn't you pop your motor right after that dyno because you were running to much timing?

:inout:

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Chris28
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Nope, that was base timing that I was looking at lol.

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JonathanPrem
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How much can the ka24de tranny hold it

OK240sxGUY
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Awetastic dude, thanks! It's what I've been lookin for :chuckle:

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slikklogic
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soo this intake manifold sucks..i need vacuum ports and only accessible one is the fpr..should i tee off that for gauge and bov???? i have seen some pictures of people putting on a vacuum block to split the brake booster line. but i cant find one of those anywhere right now

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CanuckS14
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Car: Red 240SX LE with a stock KA24DE, outfitted with E3 Diamond Fire spark plugs and a stock type replacement K&N air filter.
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That Guy1 wrote:
Thebighouse111 wrote:hey i've been looking for a 240 for a couple months and i've been wondering what motor to use. I've heard that the KA is very strong. anyone have a set up for like 500hp+ and at what point should you upgrade the internals. Thanks
If you want that, just go LS1.
You know, I see this and cry lol. Turbo magazine, sister to import tuner magazine, has done a 750hp KA24DET build with the help of the founder of enjuku racing, whose first car happened to be a '95 240SX with a KA24DE (which is why enjuku was originally the go to place for anything Nissan). It requires a crap load of cash and time cuz you bore it from a 2.4 to a 2.6 and up size your head bolts from 10 mil to 11 mil, scrap the stock semi countered crank for a fully countered crank which involves modding the block by grinding to fit it. It's a nasty build and very risky and involves super intelligent chimps with doctorates in engineering :ohno: but it is possible to build a nasty a** 240LS-murderer.

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CanuckS14
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Also, I learned through PMM on YouTube, who did some homework, that the 5 speed manual trans off the SR has a tighter gear ratio than the 5 speed manual trans from the KA and is completely interchangeable with a KA. All that is required is a swap of the bell housings, which bolt right up perfectly. So for all those inclined, it's a DIY mod so you can save some bucks.....just don't forget you clutch alignment too or s*** can go south fast.

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WDRacing
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CanuckS14 wrote: You know, I see this and cry lol. Turbo magazine, sister to import tuner magazine, has done a 750hp KA24DET build with the help of the founder of enjuku racing, whose first car happened to be a '95 240SX with a KA24DE (which is why enjuku was originally the go to place for anything Nissan). It requires a crap load of cash and time cuz you bore it from a 2.4 to a 2.6 and up size your head bolts from 10 mil to 11 mil, scrap the stock semi countered crank for a fully countered crank which involves modding the block by grinding to fit it. It's a nasty build and very risky and involves super intelligent chimps with doctorates in engineering :ohno: but it is possible to build a nasty a** 240LS-murderer.
I've driven some very high hp small cube motors, they all have one thing in common, huge amounts of turbo lag. Usable power from 5000 and up isn't fun for anything other than going in a straight line.

By going with an LSx you can have a motor that makes over 300ft lbs of torque at throttle tip in, by just dropping it in. With a cam, intake and rom tune you can make over 500 ft lbs. We're talking about a car that pushes you into your seat from the second you touch the go peddle to the point where you lift. Traction will be a thing of the past.

I love the KA, but it will never beat the LS series where power is concerned.

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WDRacing
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CanuckS14 wrote:Also, I learned through PMM on YouTube, who did some homework, that the 5 speed manual trans off the SR has a tighter gear ratio than the 5 speed manual trans from the KA and is completely interchangeable with a KA. All that is required is a swap of the bell housings, which bolt right up perfectly. So for all those inclined, it's a DIY mod so you can save some bucks.....just don't forget you clutch alignment too or s*** can go south fast.
Not a lot of SR transmissions lying around though. The ones you find are usually beat pretty badly.

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WDRacing
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WDRacing wrote:
CanuckS14 wrote: You know, I see this and cry lol. Turbo magazine, sister to import tuner magazine, has done a 750hp KA24DET build with the help of the founder of enjuku racing, whose first car happened to be a '95 240SX with a KA24DE (which is why enjuku was originally the go to place for anything Nissan). It requires a crap load of cash and time cuz you bore it from a 2.4 to a 2.6 and up size your head bolts from 10 mil to 11 mil, scrap the stock semi countered crank for a fully countered crank which involves modding the block by grinding to fit it. It's a nasty build and very risky and involves super intelligent chimps with doctorates in engineering :ohno: but it is possible to build a nasty a** 240LS-murderer.
Welcome to Nico!

I've driven some very high hp small cube motors, they all have one thing in common, huge amounts of turbo lag. Usable power from 5000 and up isn't fun for anything other than going in a straight line.

By going with an LSx you can have a motor that makes over 300ft lbs of torque at throttle tip in, by just dropping it in. With a cam, intake and rom tune you can make over 500 ft lbs. We're talking about a car that pushes you into your seat from the second you touch the go peddle to the point where you lift. Traction will be a thing of the past.

I love the KA, but it will never beat the LS series where power is concerned.

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tunermt
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KA-t are a damn good time :)
[youtube]http://www.youtube.com/watch?v=jpqgWcf1iCo[/youtube]

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WDRacing
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Yes they are!!!

strongrsthood
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Very nice glad to see knowledgeable people still build cars

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WDRacing
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strongrsthood wrote:Very nice glad to see knowledgeable people still build cars
Welcome to Nico!


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