“low cost” turbo kit.

Information on the naturally-aspirated KA24E and KA24DE engines.
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I am Technoman
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Here is a write up on what you will need for a custom turbo kit for a KA24DE.

This will describe what you will need to build a custom “low cost” turbo kit.

FUEL: You will need to bring up the fuel system to handle boost. · Fuel pump· Fuel injectors 370 or larger limit 10 PSI on 370 cc· Fuel pressure regulator “adjustable”· Fuel pressure gauge· Fuel filter 300zx TT

COMPRESSOR: The turbo must be T-3 or larger. · Turbo charger T-3 T-4 Hybrid works the best.· Manifold · Down pipe· Custom hot pipe and intake pipe from the intercooler to throttle body. “All plumbing”· Blow off valve· Waste gate· Intercooler these can come from just about anywhere.· Oil feed lines and drain line “all hardware’

GUAGES:· Boost· EGT· Air/Fuel

ELECTRONICS: I say use the Greddy E manage because it’s very cost effective and will do everything you need it to do for a good low cost turbo application.

This is how I am going to use the E manage. I want to reprogram for larger injectors along with a Z32 MAF and set air/fuel mixture in 500 rpm increments. I would also like to have the timing harness to control my timing within the grid table in the e manage so my motor will not detonate. I will also be using the extra injector harness because I want to spray water/alcohol into my throttle body after 7PSI. By doing this I just might make it up to 14 PSI with the extra injector! By using this low cost ‘Piggyback” I can do anything I want to do to my turbo system even wile the car is on the dyno!

This kit would cost around 3k or less, depends on what “good deals” you can find.This kit will also give you way more power than any Nsport or Fmax kit could ever get you. For alot less money!

PS I’m sure I left something out but most of it is there.


silviaNE
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your e-manage idea seems a bit risky to me unless you have experience with the unit. just my op.

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silviaNE wrote:your e-manage idea seems a bit risky to me unless you have experience with the unit. just my op.


Whats risky about controling timing and adding more fuel under boost?

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No one should tune any management system without experience.

nismofan14
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The eManage is one of the most user friendly piggybacks you can buy. If you have an s14 then it is even easier since they have a base map for it.

encasemyheart
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If you put in 370cc injectors, can you just slap on the emanage and change the entire map the same percentage of the injector increase? Like going from 240cc injectors to 370cc injectors, that is about +55%, so would everything be okay if you set the emanage and changed the whole map +55%? Is this how it works? I'm talking something to work until you can drive to the dyno...

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I want to talk more about the injector harness and the sub injectors on the Greddy E manage. Greddy says you can have two sub injectors and if I understand them right the sub injectors can be programmed to “turn on” at different RPM”S. So I can have extra fuel come on at 7 PSI and alcohol from the 2nd sub injector come on at say 10 PSI and higher.

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encasemyheart wrote:If you put in 370cc injectors, can you just slap on the emanage and change the entire map the same percentage of the injector increase? Like going from 240cc injectors to 370cc injectors, that is about +55%, so would everything be okay if you set the emanage and changed the whole map +55%? Is this how it works? I'm talking something to work until you can drive to the dyno...
There is a little window in the interface of the software that you type in what ever injector size you have and the e manage will handle the rest at least good to run to the dyno.Make you’re changes on the dyno. Borrow a wideband o2 to use as a reference.

nismofan14
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I believe thats correct. The sub injectors can be programmed to come on at certain rpms, i dont know about boost levels however. You can use 370cc injectors. Greddy uses them in their turbo kit for the s14. Turbonetics uses a similar setup, (maybe even the eManage) to control 2 additional injectors and the ignition in their kit for the s14.

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nismofan14 wrote:I believe thats correct. The sub injectors can be programmed to come on at certain rpms, i dont know about boost levels however. You can use 370cc injectors. Greddy uses them in their turbo kit for the s14. Turbonetics uses a similar setup, (maybe even the eManage) to control 2 additional injectors and the ignition in their kit for the s14.


When you’re at X RPM. You will be at X PSI

nismofan14
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I am Technoman wrote:When you’re at X RPM. You will be at X PSI


Yes you are right.......lol i had one of those stupid moments. Anyhow, i know that i will be using the eManage when i get everything together. Eventually i will be getting a JWT ecu reprogram.

TomsMR2
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you can use a boost dependant timing retard box, like the MSD Boost Timing Master. retards timing x amount per 1psi of boost.

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TomsMR2 wrote:you can use a boost dependant timing retard box, like the MSD Boost Timing Master. retards timing x amount per 1psi of boost.


The E manage can also see boost and adjust timing with the right harness that I could probably make my self.

I’m not working for Greddy or anything I just looked into this turbo trend real hard and can not think of a better cheaper solution for turbo charging my 98 240sx. I do not want to rebuild my internals right away I don’t need to if I can just get the right solution to keep away detonation at 10- 12 PSI then hey what the Fuc!!! My other solution would be to spend about 1000 more dollars and get an “Fmax” or an “Nsport” kit and hope I don’t detonate at 7 PSI and trust in an FMU.

Mikel
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I am Technoman wrote:When you’re at X RPM. You will be at X PSI


Not true, it will depend on the gear, the temperature outside, flat ground, uphill, downhill. I've seen people wiring the SAFC Throttle Position wire to a GM 3 bar MAP sensor to have pressure dependant fueling. Does the Emanage have any provisions for a pressure sensor?

nismofan14
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for about $160 you can incorporate a greddy pressure sensor and the harness. Check it out e Manage

Mikel
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nismofan14 wrote:for about $160 you can incorporate a greddy pressure sensor and the harness. Check it out e Manage


Thanks :cool:

Looks very cool, better than tricking an SAFC into reading boost.

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Come December I'll be selling full turbo Kits for 1500 bucks cheaper then the closest competition...well shortly after Dec, since I get back that month. My kits will be staged like the rest, my stage 3 coming with a standalone alcohol injection system already tuned. All my kits will be tuned on my cars with stock bottom ends on a dyno and setup for safety. I'll also be running tests to see just how much boost the old KA will take before she pops.

For the record, I've never heard anything bad about the Emanage...other then I've only seen them on Honda's...lol.

WD

nismofan14
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For the record, I've never heard anything bad about the Emanage...other then I've only seen them on Honda's...lol.

WD [/QUOTE]

Lol.....me too but they do have an application for the s14 with the base map preprogrammed. I will know just how good it is shortly, i ordered it yesterday for use with my nitrous setup till i get my turbo setup together, might be waitin for december now that you mentioned your kits.

WD, be sure to keep us posted on those turbo kits. Whenever you get some specs let me know.

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Shoot me an email, since you have your mail turned off!!!!!I'll give you the specs of the turbines. I won't have the details of the fuel system till I start building and tuning the kits on my cars...

WD

Mikel
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You mind sending me the turbine info too?

[email protected]

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sil80drifter
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The Greddy site says that the E-Manage unit can only "slightly alter factory injector duty-cycle(± 20% at 5 preset RPM points)" This is kind of sucky, since the AFC II can do 50% on 12 different RPM points (and costs same or less). Is there any kind of adjustability of how far E-Manage can manage the fuel curves?

sil80

zeardux
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hey wd, are ur kits going to be for the kae or just de?

silviaNE
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I was refering to your aux injector an alcohol/water mix. It is not as easy as one might think to get that to work smoothly. i would recomend using an aquamist system standalone instaed personally. just my op.

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sil80drifter
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oh no u didn't tell WD to not use his alcohol like he wants to.... oh brother...oh boy....

sil80

nismofan14
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sil80drifter wrote:The Greddy site says that the E-Manage unit can only "slightly alter factory injector duty-cycle(± 20% at 5 preset RPM points)" This is kind of sucky, since the AFC II can do 50% on 12 different RPM points (and costs same or less). Is there any kind of adjustability of how far E-Manage can manage the fuel curves?

sil80


If you read the next paragragh you will see that with the eManage support tool software and a laptop the emanage can go past 20% along with a nice list of other functions.

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Alcohol injection is the shiot! It’s the hole reason I want to use the E manage to spray alcohol or I was thinking about spraying cheap A$$ Windex! It has a lot of alki and a little ammonia! im sure that will keep the ol valves clean! :D

nismofan14
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I am Technoman wrote:Alcohol injection is the shiot! It’s the hole reason I want to use the E manage to spray alcohol or I was thinking about spraying cheap A$$ Windex! It has a lot of alki and a little ammonia! im sure that will keep the ol valves clean! :D
Plus it will prevent you from streaking!!!! lol

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silviaNE wrote:I was refering to your aux injector an alcohol/water mix. It is not as easy as one might think to get that to work smoothly. i would recomend using an aquamist system standalone instaed personally. just my op.


Yeah, Sil80 was right, your gonna catch hell for that one. The aquamist kit is basically the same thing as any alcohol kit except you have a low volume pump and it sprays water. Granted, water has a better cooling effect on the combustion then Denatured alcohol does. But you wwon't ever catch me spraying somthing inside my engine that doesn't go boom when you put a spark to it.

My Alky kit could be tuned by your grandmother, besides, it will come 90% tuned for you already. You might have to adjsut the volume a small amount to tailor to your specific needs, but I'll be providing explicit directions on how to do so.

Denatured Alcohol burns 350 degree's colder then 93 octane pump gas. It also produces 15% more energy when ignited.

Alcohol is an easy way to increase the amount of boost your engine can run by 7-8 psi without detonation. Thats around 80hp to the wheels fella's.

WD

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Sorry, I'll only be doing the KA24DE for now, But I can build a kit for any motor, to include V8's. My shop is going to specialize in custom builds. Mostly Nissan though....

If I can get a donor car for a couple months, getting a kit fabbed up is easy. Then I'll just charge you for the supplies and shipping.

WD

TomsMR2
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thinking about it.. i definately wouldnt call an Emanaged turbo a "cheap" setup. dyno time is expensive, and so is the emanage.. especially if you're installing it yourself, which i have my doubts that people here are doing.

fmu's work. i dont see why you wouldnt trust them.


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