KA24DER Help

[Soilsack]

I am about to begin sourcing some parts for my KA-R. the platform will be a 1998 240SX SE with 116K on the clock.

I have not checked compression or anything like that yet but I do want to say, if I test it and it is good I would like to avoid rebuilding my engine and just using stock internals.

I plan to maintain this vehicle as a weekend driver. Street only and I do not have any goals of seeing over 250 HP/TQ. I compiled a list of things, most of which I probably don't need, to get started.

So guys, keep in mind. Street car, Supercharged, No "hellaflush" fitment. Just something to make the car a little more fun.

Now on to the dream list


Suspension

1 Stance Super Sport Plus Coilovers$1100.75

1 Nismo Front Lower Control Arms$436.95

1 SPL Pro V5 Front Outer Tie Rod Ends$249.00

1 Tein Front Inner Tie Rods$95.00

1 Front Steering Track Boots$49.00

1 SPL Titanium Tension Rods$265.00

1 Nismo Rear Lower Control Arms$455.95

1 SPL Titanium Rear Traction Rods$254.00

1 SPL Titanium Rear Upper Arms$360.00

1 SPL Titanium Toe Rods$285.00

1 Energy Suspension Rear Subframe Bushings Kit$152.99

Total$3697.64


Brakes

1 Z32 Front and Rear Calipers$250.00

1 StopTech Sport Brake Kit $553.74

1 R33 E-Brake Cable$45.00

1 Z32 Master Brake Cylinder$49.99

Total $898.73


Engine

1 Q45 Throttle Body$78.00

1 Cometic Valve Cover Gasket$33.20

1 ARP Head Studs and Cometic Head Gasket Combo$185.95

Total $297.15


Intake

1 KA24DER.com Kit$950.00

1 M62 Supercharger$699.99

1 Q45 MAF Sensor$26.57

1 APEXi Dual Funnel Power Intake Kit$169.14

Total 1845.70


Exhaust

1 DC Sports Header$379.95

Total $379.95


Fuel

1 DeatschWerks 370cc Fuel Injectors$359.00

1 Walbro 1142 High Flow Fuel Pump$119.95

1 Nissan Z32 Fuel Filter$24.95

Total $503.90


Electrical

1 Summit Racing Battery Relocation Kit$194.95

1 NGK Iridium IX Spark Plugs Heat Range 6$39.95

1 NGK Spark Plug Wires$59.95

1 Bosch Distributer Cap$23.95

Total $318.80


Drivetrain

1 S15 HLSD$379.99

1 Exedy Performance Stage 1 Clutch$345.35

1Nismo Transmission and Motor Mount$365.00

Total $1090.34


Electronics

1 A-Pillar Triple Gauge Pod$32.99 http://www.glowshiftdirect.com

1 Autometer Phantom Air Fuel Gauge$231.97

1 Autometer Phantom Vacuum/Boost 20psi$68.97

1 Autometer Phantom Fuel Pressure 100psi$59.97

1 Nistune Type 4 Board, Cable, And Software$498.94

Total $892.84


total before shipping? A whopping $9925.05

Hence the reason I came here. With simply window shopping I see all of this and THINK I need it. I am coming to you for advice with what I REALLY need. I expect that most of the suspension department is not needed and I know there are probably things that I can get for less money but this is just what is available now while I shop. If there is a lower cost alternative to some of these products that you would suggest please feel free to do so. ANY Advice would be great, I really appreciate it.

[DJ-of-E]

Please take out a lot from your "dream list" because it is really confusing to see what parts you are using. You're askng for KA24DER build, but showing other stuff at the same time.

Also, I really love KA24DER because of the wide powerband and really focused on low and mid-range torque on the engine. However, please note it will only reliably be fast with little boost dyno'ing around 210hp and with 220lbs of torque without needing for water/meth injection. Any higher and you will need major meth/water injection to cool, and that's barely 250hp range. By that time, you might as well build a T28 KA24DET. My last build was KA24DER, but it really is annoying and scary that there isn't a readily available supercharger intercooler kit to fit for KA24DER setup. Otherwise, you'll blow up the engine.

[Soilsack]

I'm not sure how it's confusing. I am attempting to plan upgrades to the car and it is a list for a total build. However, I would like advice on some of the other parts listed. I am not sure what I really need, what I don't need at all, and what can be substituted for a lower cost component. I would like to avoid water/method injection so I don't know if there is a larger pully for maybe 5 lbs of boost but I don't want turbo and after comparing prices the supercharger is cheaper and requires fewer parts.

[DJ-of-E]

I'm not sure how it's confusing. I am attempting to plan upgrades to the car and it is a list for a total build. However, I would like advice on some of the other parts listed. I am not sure what I really need, what I don't need at all, and what can be substituted for a lower cost component. I would like to avoid water/method injection so I don't know if there is a larger pully for maybe 5 lbs of boost but I don't want turbo and after comparing prices the supercharger is cheaper and requires fewer parts.

It's because you're requesting KA24DER help, but you have a bunch of other stuff. This will make the conversation very difficult to follow as people may even ignore the KA24DER aspect.

btw, 5lbs of boost would barely get you 180hp on KA24DER.

[Soilsack]

I am not looking for big hp, I just want a little boost in power that is reliable. I looked into turbo and it is more work, modification, parts, and money. Supercharger seems like the best route. The only reason I put the 250 horsepower in there is because I am not looking to make any more than that. I want to avoid water or meth imjection as well, what is the recommended psi to avoid it? Is there a way to change the thread title?

[silviaks2nr]

Be smart and get cams, and head work w/ springs and valves, a bigger throttle body/ intake manifold, and an AEM v1 or v2 or megasquirt instead. ITB's if you're feeling ambitious.

Pretty much everyone with experience will tell you supercharging these motors is dumb and a waste of money. If anything it's LESS reliable than turbo even at these low power levels. I would build another motor to turbo or just do a swap.

[DJ 21o3]

If it is only a street car, you can cross off the SPL arms for cheaper arms, just don't go too cheap. I admit I cheaped out and went with ISIS because Enjuku will back them if they manage to somehow break on me, but that is for a missile like build. Also i thought the stock LCA were good enough for any mild build, so you could take the NISMO FLCA off the list. People will surely correct me, and that is fine. Take their advice, im young and dumb.

I will say I was somewhat in your boat. I have more $$ in a pile of parts in my shop than what the car is worth! lol Good luck

[DJ-of-E]

I am not looking for big hp, I just want a little boost in power that is reliable. I looked into turbo and it is more work, modification, parts, and money. Supercharger seems like the best route. The only reason I put the 250 horsepower in there is because I am not looking to make any more than that. I want to avoid water or meth imjection as well, what is the recommended psi to avoid it? Is there a way to change the thread title?

From my experiences, KA24DER is not worth the trouble. You have to maintain it similar to TURBO setups with no way to cool it. I'd rather either spend money on TURBO or just keep it N/A.

If you want reliable, like I said, maybe 210HP max. So basically, you've just dropped about $2200 on a supercharger setup to get extra 40HP? I rather go NA and take the money to spend on proper coilovers. Heck, with that much money, you're better off getting a 350z track edition.

[Razi]

You're going to need to figure out how to deal with the assload of heat it's going to make.

[Soilsack]

Well I appreciate the help. I don't understand how it is so difficult to find objective individuals that understand the fact that someone doesn't want 400hp. Or people that will actually offer insight on a subject. I figured I would reach out for some input on the best way to make this kind of setup work. Instead I get unhelpful comments about how I should either give up or do something I don't want to do. I figured the purpose of a community like this is to share ideas and help others grow but I suppose I was wrong.

[Salvarath]

Sorry you're having so much trouble with the community, but I suggest checking out another community: ka-t.org, it has lots of ka24der information and a few very nice supercharger builds/setups that I'm sure you could follow/modify to the extent you want. Good luck with the research and I hope you go through with it, oh by the way check out adamky on there. He has a really nice s14 setup, his name on YouTube is adamky1

[HighwaystarJC]

Really I was considering the ka24der setup but as previously posted it just isn't a sensible setup on our engines. You can do a ton of research but as much as you argue that the sc would be less maintenance it just isn't feasible.

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[Chaluska]

My advice, don't spend all that cash on suspension stuff. a lot of what you are posting is either MSRP expensive or name brand parts. a full z32 brake conversion, WITH parking brake, shouldn't run more than 5-600 dollars. the nismo front lower control arm? it literally is a stock arm with a "less stiff than energy suspension" bushing. if its just a weekend street car, you are wasting THOUSANDS of dollars on over the top bulletproof suspension. Coilovers make for a terrible street car BTW when compared to springs and struts. the S15 HLSD is also a waste of money, a VLSD with fresh fluid will be just as good "on the street" as an HLSD. the summit battery relocation kit is about 4x as much as it would cost to buy a battery box, and 30 foot of 2 gauge cable and a few connectors. I would say in your list there is about 6000 dollars of extra shit you would be wasting money on. I'm being real, and not trying to mess with you.

a supercharged KA is more of a novelty than a realistic world usable application. a turbo is FREE power, using the exhaust to create boost. a supercharger is a parasitic power adder, which robs horsepower the faster it spins, and as everyone else has mentioned, it creates a TON of heat.

taking tuning, and fuel out of it, with what you have in the supercharger, the kit, a apexi air suction kit, dc sports headers, Q45 throttle body, your sitting at around $2000.00.. you can get a GOOD used turbo manifold / downpipe / wastegate / T3 turbo for just under a grand.. you'll need an intercooler, which is around $250, and oil lines (another hundred). another hundred bucks in pre-bent piping, silicone connectors, and clamps and your CHEAPER than if you would have went KA-R.

I was in the same boat as you.. here is the engine im building.. total so far is about $4500 and it has ARP head studs, felpro head gasket, Bullseye S259 turbo, Phat manifold and downpipe, Tial wastegate, 740cc injectors, Z32 maf, Nistune, mid mount intercooler, PLX wideband, PLX boost gauge, Oil pressure gauge, all new OEM timing / oil pump / distributor bits/ knock sensor / plugs, wires, all sensors...

https://scontent-a-ord.xx.fbcdn.net/hphotos-prn1/t31/1956953_693142100709036_606042643_o.jpg

Do the right thing.

Also, you need to chunk in some money for a nice radiator setup.

[sidewayz240]

I'm running a KA-R setup. I started it acouple years ago before the ka24de-r kit hit the market, I designed/built it as my final project for college. I can't comment on the reliability of the setup as I haven't actually put it on the road yet, but I'll find out in a couple months when the weather agrees. I will be installing a meth kit before I drive it hard.

Quick vid I made for my final presentation
59uZHrBjThg

The supercharger part of the build starts of page 4 if your interested.
http://www.son240sx.org/showthread.php?133320-Project-Do-Work/page4

If you want a ka-r then just bite the bullet and do it, the only way your gunna learn if its right for YOU or not is by doing it.

[Srsil]

Bag the ka put a bone stock knotch top in it more power more realiability better gas mileage lighter it will last 100k on 10 psi with intake and exhaust and proper maintnence a ka wont

[FaLKoN240]

ANY Advice would be great, I really appreciate it.

You got a lot of advice in this thread, and you turned it down.

The KA24DER.com kit is sold out, from what I understand, it has been for a while.

All those parts you listed can be found, for the most part used. Unless you have all the money now to plunk down on those parts now, I would suggest taking it easy, getting the necessary parts and buying things as you see fit.

To be honest I would buy all the parts used that work for turbo/supercharging. (if you haven't given up on the idea after you spent some cash)

It's easy to throw around a bunch of parts and numbers until you start paying for them and realize you need to spend money on unplanned expenses.

[240sxfan6882]

You've pretty much been schooled by people here about how a KA-DER is simply not worth it for several reasons (which have already been posted):
No intercooling other than meth available (which is prone to failure more)
a lot of cash for low 200hp numbers.

Take people's advice and look for a T25 bottom mount setup with like a GT2871r with .63AR housing... that will give you very good spool... or even an S15 turbo for insta-power with the option of intercooling options.

/Thread

[rwtf]

basically what everyone is saying is going turbo is cheaper and makes more power and less problems...its simple.

[HeyGirlHeyyy]

You would be better off swapping in a 1UZ-FE. It can be done for the amount you're planning on spending for your exhaust and intake setup, less if you're mechanically inclined. They also make power in the mid 200 area (250hp/260tq), but it would be far more reliable than any boost application.