Ka24det FAQ

[shalezzz]

Can anyone point me in the direction of a good write up for ka turbo coolant lines? I searched all over Ka-t, and the only one ive sen on zilvia used rubber hoses bypassing the throttle body.

[booey13]

Originally Posted by shalezzz

Can anyone point me in the direction of a good write up for ka turbo coolant lines? I searched all over Ka-t, and the only one ive sen on zilvia used rubber hoses bypassing the throttle body.

Are you using a bb turbo?

[LBK S13]

Ok so I may be new to the site but I found this thread by actually typing in KA--T FAQ and I expected to find some questions yes but answers right behind them. I read all 11 pages of this thread and saw a lot more stupid questions then answers.
To contribute to some answers. I have a 91 s13 KA24DE T
I originally bought a used turbo from eBay. That was shit and lasted a few weeks. They warranted it and give another. That lasted a month. I found a localish tuner club and a guy had to t3/4 turbos that had their own problems and I pieced them together and have gotten about 20000miles out of them. I am running the cobra MAF and SAFC with 370cc injectors and I got it tuned more than once to make sure as far as the rest of my turbo kit it was pieced together by buying things similar to a complete kit found on a brand name website. My turbo set up has only given me one problem and that was when a drink spilt on my SAFC and shorted it out. For questions on parts and set ups there is a chat section where you can start a thread. Hope this helps someone

[LexSan]

can somebody help me with a code? its for a bone stock ka. i got 1400 i told its egr related but im not sure what exactly it is. i was told maybe like an egr vaacum solenoid? or just maybe a new gas cap im not sure

[roboticnissan]

What are you guys hooking your wastegate vaccum too? I have a t28 turbo

[supakat]

If you have a nipple on the compressor housing, use that. It does not need vacuum, only pressure signal. You can use a true vacuum line. It does not matter.

[roboticnissan]

Can you explain a pressure signal? I obviously dont have a nipple on the compressor housing or id use it.

[supakat]

Just get a vacuum line from the IC or tee off from FPR vacuum.

[roboticnissan]

Ive read fpr is BAD on a lot of sites.

[supakat]

A vacuum is a vacuum. I have never had any issues. My FPR feed is Tee'd to my MegaSquirt. Even DIYAutotune.com states to Tee from FPR. MegaSquirtPNP by DIYAutoTune.com

[je_decoy]

^^ if your blowing vac lines its gonna effect the whole system not just the individual unit its hooked to

[supakat]

Anything hooked up to a turbo motor will see positive pressure unless it has a one way valve like the brake booster.

[Bosko]

Hey guys, just recently found a used KA24DE on good ol' Craigslist. Its got 125kish on it. Its got everything but the trans on it. He thinks it has a spun bearing, and is selling it for 75$ (block, head + components). Now, this just seems really low to me, so I'm alittle skeptical about its true condition, but I'm in need of an engine for my car, so, should I shell the 75$ and see what all needs done to get it going, and if so, what brands would you guys recommend? I've already started factoring in sr injectors, a fuel pump, and such. Or should I try and find a different one? I'm looking to go for a mildish build, mid to low 200's hp wise, just to be around an SR20's area. I just have no idea where to start, but I have seen the info about the injectors, 255 fuel pump, avoiding Egay, so on, I just have no idea what to expect. So I was wondering if someone could point me in the right direction. This is my first build, so I'm trying to go the "prepare for the worst, hope for the best", route.
Here's the link to the Ad if it helps

240sx KA24DE motor and trans

Just looking for alittle advice, all input is welcome!

[roboticnissan]

Why is spark plug gap sooo different on everyones builds? Whats the latest on spark plug gap for turbo guys, im at 23 and having issues. That seems hella low

[supakat]

The reason why it is so different is because of cylinder pressures, fuel, power of the spark, etc. .028 seems to be a good gap for most KA's with distributor systems. I am running .036 with LS2 coils. In regards to your setup, have you tried rewiring the ignition coil with a relay. This helped my setup a lot when I was using a distributor.

[240skate]

Turn key Ka24det swap & Silvia front end

This is going in my car. What do u guys think? Its costing me 3000$ for a turn key swap...

[shalezzz]

If you have a de already than no, if you have a sohc than it's debatable, but still kinda high for a Kat. You Should have him install it with the price for 3 grand if he's that firm on the price. And is it tuned? It may have never ran good enough to get it on a dyno and now he's jest selling his prob and trying to get every penny he can.

[240skate]

I have a blown stalk ka right now. Just got the car as a project. Its getting installed for 3k

[OiyItsC4ry]

How are T3/T4 Turbos on a Ka? Do I still need to have it tuned or do you think I can run it w/o a tune and low boosting?

[booey13]

^sure you can and it's been done before. Although it's not recommended. If you want it to last get a tune. An safc at the very least.

[Jonas00]

had a t3 60-1 set up. works perfectly fine. you are going to want a tune ...

[ditchs14]

hey guys. got a quick question. this is mostly for the guys who are running over 14psi. heres my setup

built forged bottom 9:1
bc 264 cams
bc oversize valves
all arp hardware. im running the old arp headstuds(the 1.9 saturn ones)
t3/04e @ 15psi
hks 740cc


so i blew my first head gasket. was a felpro. took the head off and everything is fine. nothing is warped. i was at the strip and i just got my bee r a few weeks ago. testing out the 2 step... anyway #4 cylinder started burning coolant after my third pass. car has around 10,000 on the new motor. coolant was NOT in the oil.

the gasket had two small holes between cylinder 2&3 and by #4 as well.

so my question is..im going with a felpro again.is there anything i can do to prevent this from happening again? a buddy had the same thing happen to his KA-T(built with t28) after a few thousand. he said that instead of just hand tightening the studs in like it says. he used an Allen key and tightened them down pretty good before putting the head back on. haven't had a problem since. also i saw that on arp's new stud kit for the KA it says you can use locktight but you must torque the head down before it sets. soo any tips

[brandonc108]

What do you guys think of this kit?
cxracing.com: Newly Released Complete Turbo Kit for 91-94 Nissan S13 240SX with Stock KA24DE DOHC Dual Cam Engine

[240 bro]

hey guys,im pretty new to the whole forum thing but my names biagio, i have a 1993 240sx se,its a Ka24de pretty much stock aside from intake, exhaust and finally coilovers, anyway i was wondering if i someone could help me, im really interested in saving money for a whole turbo setup but i cant get a solid price because i dont know everything i need. could someone give me a complete list of everything id need to put on a stock 240 to have a complete setup, thanks

[One_love_silvia]

what size fitting did everyone get for the turbo oil lines that gets welded onto the oil pan? anyone know stock sr20 thread size and pitch?

[chuki monsta s13]

Hello everybody i have a ka24de with a t25, walbro 255l pump, n60 maf, 370cc injectors, smic, xs manifold, sr downpipe and elbow, Enthalpy ECU for 91 octane and stock FPR

NOw we retarted 15 deg BTDC, when we start the car it idles fairly high, i read the wideband gauge it reads crazy lean. We checked for vacume and boost leaks but none, we noticed when we spray starter fluid in the MAF the car idles perfect for a lil bit then goes lean. I am stumped any wise words would help.

thanks

[kevmeistah21]

I got a s13 ka24de, i removed the "PCV TREE" and now i'm wondering what to do it with it? Im going to boost it so i have a catch can as well. Can i have one vacuum line going from the PCV valve to one side of the catch can the the other line leaving the catch can going to the breather on the valve cover? OR have the the pcv and breather off the valvecover tee'd into one line going to the catch can and the other line from the catch can to pre turbo?

[EliteDriftProductions]

Ok, so I recently purchased a 90 hatch rolling shell, my buddy is giving me his ka24 engine,tranny and ecu wiring harness. He rebuilt it and has about 10k on the new motor. I want to turbo it and am wondering if it can handle pretty good boost on a t28 turbo? Thought about a t3 but I am not 100% on how much the motor can take. Any suggestions on what size turbo or should I just start buying eagle rods, forged pistons, new crank and cams so that I can uprade to a bigger turbo eventually? I am starting to drift so I am figuring should just stay stock for a while then slowly upgrade to all this that I just explained. Let me know if there is a better way of going about this? Thanks!

Oh and I know some of you will say "SR! Problem solved" But I hear KA's are badass built up.

[mmmS13]

Originally Posted by EliteDriftProductions

I want to turbo it and am wondering if it can handle pretty good boost on a t28 turbo? Thought about a t3 but I am not 100% on how much the motor can take. Any suggestions on what size turbo

t3/t4 50 trim .63 ar beautiful turbo for pump gas, full boost around 3500rpms holds strong until redline. If the motor was properly rebuilt it will hold 15psi easily on a good tune. Im running 11psi on a stock block with 230k miles, proper tune is what makes or breaks a KA.

[josh_schul]

Originally Posted by mmmS13

t3/t4 50 trim .63 ar beautiful turbo for pump gas, full boost around 3500rpms holds strong until redline. If the motor was properly rebuilt it will hold 15psi easily on a good tune. Im running 11psi on a stock block with 230k miles, proper tune is what makes or breaks a KA.

Hey just wondering what your numbers are... i have the same turbo and am running a similar setup... just curious?