Need Some Assistance.

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
Zane98S14
Posts: 12
Joined: Mon Feb 19, 2007 10:39 am
Car: 98 Nissan 240sx

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Hey guys, been readin the forum for awhile but this is my first post. For a very long time i've been playin around with different ideas of what to do with my 98 240. SR is out becuase i couldn't pass emissions with the OBD2 awesomeness of the 98's. So I have seriously been thinking about KA-T which scares me slightly becuase i'm not entierly sure what all is involved, which is why i've put it off a little while. Are there kits that are below 3 grand? becuase most of the ones i can find are in that range. As retarded as this will probably come across, i was wondering if anyone has any experience with the 1300 dollar kits off ebay (i'm very wary about this but...). If its better to peice one together, can someone link me a full parts list? lookin for 250 hp hopefully under like 2 grand. Any help appreciated.

Thanks,Zane


NateDogg
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Read the FAQ at the top of this forum.

DRFT(kinda)
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I second what NateDogg said, but also I would like to chime in with what I know.

eBay kits are a complete waste of time and money. If you are looking for cheap boost you have to worry about reliability. If you still want to go the cheapest route possible I would look into putting together a kit yourself. A good key thing to keep in mind is that more air = more fuel. I'm not sure what the smallest turbo you could get for your HP goal cause I really don't know much about the different kinds of turbos. But you will need a exaust manifold, intercooler and piping, some form of fuel management, a form of boost control, blow off valve, wastegate, oil lines, and probably bigger injectors. I'm probably missing a bunch of stuff but I'm sure someone else can fill in what I left out.

halnfl
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You could get a kit from JGStools. It is around 1700. Then you'd need a sr downpipe, intercooler kit,bov, injectors, fuel pump and you could get away with a safc if you don't go crazy with boost. That way you'd have a good base foundation of parts that could take you further in the future. You could probably manage all of that for 2500 or so. With time you could build an engine. Get bigger injectors and a tuned ecu and you would be running with the big doggs.

Zane98S14
Posts: 12
Joined: Mon Feb 19, 2007 10:39 am
Car: 98 Nissan 240sx

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Yea, this is pretty much everything i've been lookin at. I spent some time on the JGS site yesterday checkin some stuff out. I was thinkin about sticking with a T25 or T28 size turbo instead of the T3/T4's JGS' kit has with them but that will probably be the route that i go. SAFC for beginning and probably some 370cc injectors off the SR's. I just wanna get goin and not go to crazy right now but who knows. Thanks guys

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mac2686
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Car: 89 240sx xe coupe

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what did you do with the sr you took out? if you still have it you could get the turbo and injectors of it and prolly some other parts.. unless of course you sold it all

S13FX
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Like the previous poster stated. What did you do with the SR you took out? I mean if it's in good running condition Im sure you can sell it for a nice price. And the money you take for it you could probably piece a really nice Turbo kit for the ka, thats including injectors and such. Which will run you 300rwhp easy. Then spend about another 2k on engine rebuild and you can have your self a beast.

All in all my personal experience is with the KA, if you take your time, research the parts you get. You can put together a really nice Kit, that will make you really happy and reliable. The trick here is to wait a for that great deal to pop out and they pop out all the time.

For instance when I totaled my baby, I striped her and resold the parts for way less then I bought them, and they were all pretty much brand new. And nothing was cheaped out on.

Zane98S14
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Joined: Mon Feb 19, 2007 10:39 am
Car: 98 Nissan 240sx

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No no no, i didn't have a SR in there...i ruled that out as an option for me to choose because i wouldn't be able to pass emissions since they don't use tail sniffers for 96+ OBD2 Cars so i couldn't trick the computers with timing and leaning the mixture out.

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mac2686
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Car: 89 240sx xe coupe

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o okay... well that blows

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kornaz
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Car: 95 240sx SE.
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Piece it together. Hunt down the parts. For 2G's you can be boostin' easily. I'd go with the T3/T4, it's cheaper to upgrade, and T2's are a bit too small for Ka's.

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WDRacing
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Kornaz, we frown on off site linking to competitive forums. There isn't anything that can be found anywhere else that can't be found right here.

WD

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WDRacing
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Zane,

Here's what you need to do. Sit down and figure out exactly what you'll want out of your car. By that I mean, what will it be used for? Is it a daily driver? Will it see road course days at the track? Will it be used for drag racing? What are your power goals? What is your make or break point with the budget? How mechanically inclined are you? Will you be able to tune the fuel management yourself?

There alot of factors that go into the choice of turbo kits and fuel management.

For a quick and easy setup, buy the JGS turbo kit, you don't need a SR downpipe, I don't know where that came from. The JGS kit does not come with a FMIC setup, so you can buy one of those from ebay. They are pretty cheap, but work very well. That leaves fuel management. Obviously when you add alot more air, you're going to need to add alot more fuel. The simplest method is to install a 255LPH fuel pump and use a FMU. The FMU is a rising rate fuel pressure regulator. It increases fuel pressure 8 psi or so for every one lb of boost. This is a very easy and proven method. ANYONE WHO SAYS THEY DON'T WORK IS A LIAR AND HAS NO IDEA WHAT THEY ARE TALKING ABOUT. I'm just getting that out there now, you'll be surprised what people will say because they "know someone" or "read it on the internet somewhere". One must becareful of these internet racers.

With the above list, you can safely run 8 psi on 91 or better octane pump gas. Probably cost you close to $3000.

Don't be afraid of asking questions. We're all here to help each other out. I'm the resident Moderator...we keep things pretty loose in here. Don't take it personally if we screw with you, its never serious. We just like to have a good time. You'll make alot of friends here if you want to.

Welcome to Nico and Happy Boosting WD

Zane98S14
Posts: 12
Joined: Mon Feb 19, 2007 10:39 am
Car: 98 Nissan 240sx

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Preciate everything guys. Yes, i've already deduced all i hope to accomplish. Its mostly a DD with weekend Auto-X and occasional drift, since thats been my thing for years. HP goal is 250 and i'm a mechanical engineer so i'm pretty decently mechanically inclined. The only thing that really scares me about this whole process is the Air/Fuel items. I've never dealt with tuning of any kind, i usually just do the wrenching. I've been looking at the JGS kit for awhile and will probably just buy most of my stuff from them. With that kit and a 255lph fuel pump, am i going to need to upgrade my injectors from stock? my fuel rails? And i'm not to firmiliar with the FMU, really have never heard anything about it (unless this is a general term for something like the SAFC-II or e-Manage), where can i get more info?

Thanks guys

Modified by Zane98S14 at 7:40 AM 2/21/2007
Modified by Zane98S14 at 9:13 AM 2/21/2007

red boy
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Car: 1995 240sx

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Ive also been looking at the JGS Mani. Can you cut and weld on a flange for external waist gate? Or does it work better with internal waste gate only?

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WDRacing
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The FMU is a simple design really. It connects to the fuel line after the factory fuel pressure regulator. The factory FPR keeps the fuel pressure at what it should be. The FMU has a boost reference vac line that goes to it. When it see boost, it increases the fuel pressure over the stock FPR by whatever type you get. They come in various increase rates. The one you want is the 8:1, 8 lbs of fuel pressure for every 1 lb of boost. Its extremely simple and easy to install.

Here's The Vortech FMU

Here's a pic of how the fuel and vacuum lines will go.



WD

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WDRacing
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You can weld a external wastegate flange on almost any manifold. They sell one with a 38MM wastegate flange already though.


Zane98S14
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Joined: Mon Feb 19, 2007 10:39 am
Car: 98 Nissan 240sx

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Wow, this is by far the most helpful site i've ever been on. Thanks WD. So basically if i understand you correctly i can run the Vortech 8:1 FMU with a 255lph fuel pump and i don't even need a unit like the e-manage or S-AFC? At least to start out with, that will all come eventually.

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WDRacing
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That is correct Zane. Just remember, this is for low boost only. Once you increase the boost more then 7-8 psi, you'll want somthing else for fuel and timing management. If you here any knock at all, immediatly let off the throttle. The knock in detonation, hopefully just mild. You need to run 91 or better octane gas at all times. If you still get knock, try retarding your base timign a few degree's.

If you have any issues once you get to that point, make a new thread. We'll be able to pretty much diagnose anything you may run into.

One more thing to note. Make sure the car is in great running condition prior to the turbo endeavor. That way any issues you have after the install are new and related to steps you just made.

When you get close, amke a new thread so we can go over all the little things.

WD

Zane98S14
Posts: 12
Joined: Mon Feb 19, 2007 10:39 am
Car: 98 Nissan 240sx

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Yea, i will probably go with a SAFC shortly there after, just wanna get up and running. Also, anyone know when JGS will be getting more of the KA24DE kits in? Says they are currently out of stock. Thanks again

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WDRacing
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They build them in house. Your best bet os to call and place an order or make the inquiry.

WD

Zane98S14
Posts: 12
Joined: Mon Feb 19, 2007 10:39 am
Car: 98 Nissan 240sx

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One more question regarding intercoolers: Is it possible to avoid a battery relocation? i've hear of people using CRX batteries (very tiny) in SR20 240's. If its possible to avoid, is there a company that makes prefab piping for it? I noticed JGS also IC piping, how does it fit?

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WDRacing
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Check these kits out...

FMIC Kit $110

FMIC Kit $145

FMIC Kit $156

You can use a smaller battery if you choose to. But a relocation is pretty easy.

WD


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