Supercharged KA

[nlzmo400r]

yea i caught that too, but decided, ahhh, i dont really care to correct people, it seems when i do most people snap back and say 'YEA, i know , i was just saying' anyway, thanks for hte correction, er correcting him or whatever

[krazy skwerel]

maybe they were saying turbo is the best choice. just a thought.

[nlzmo400r]

well itll definitely be cheaper than trying to customize a supercharger for your 24o, but depends on waht u want

[keepingthe240]

A "fast response street turbo" will begin building boost at about 1,500 to 2k and working hard by 2.500rpm to 3k. Best suited for street,low boost (7-16psi),or competion(autocross or rally cars) Procharger(built in KCMO) builds a sc kit for the 350z.I know of the guy that let the shop use his car to build it. I looked at the supercharger on the car at the import race june 01......very clean install.......easy to get it to work on the 240.....over $4k for the kit and ect

[Julio Bro!]

Hello rousie 13 and contratulations in being one of the few braves trying to give this option a shot.

I too believe that a modern supercharger setup will be a better power/torque effective option than a turbo. Probably the engine swap is going to be cheaper, but I think the KA is just waiting to be squeezed into something like supercharging.

I would try myself, but I'm not in a good economic state right now, but I did some searching for good options. I found that the centrifugal supercharger has some compression losses because by design backpressure may happen. Also the housing takes a lot of space right in front of the engine; I think the best centrifugal is Powerdyne, but is not the best option.

I think the best option would be an Eaton type, specifically the twin-screw design because it's a smaller setup. I think an appropiate unit would be the Kennebell twin-screw compressor. They made an excelent kit with intercooler for the Miata, which has an engine layout very similar to the 240SX, only a smaller engine in a smaller engine bay; this I think is good for us because more power will come from the system and with more space to work. The unit goes attached to the top exhaust side of the block and nothing is eliminated. Check my post with a picture here:

http://www.nissaninfiniticlub....ber=2

I think you should call them and see how to fit a unit to your engine, without the intercooler (cheaper, more space). What do you think of the setup?

[RobDET]

Not that i'm an advocate of supercharging the KA but it would be most effective to remove the intake manafold all togather and get a sheet metal one fabbed that was open on one side. Then you get a roots blower from a mercadies or something outta the junk yard and bolt it to the manifold. (that's how i would do it you could even do a water to air IC between the manifold and the SC unit) oah an don't let all this bad talk about $$ discourage you. I'm on college and i have a proper SR swap sitting in my garage waiting for the lats few parts. I sold by B16 powered CRX to get it tho. It is definately more than 3,000 to do the swap. I've spent around 4,500 so far and i still have sotck exhaust, suspension and Dub Caps. Basically what i'm getting at is don't fret too much. Just save your pennies (no beer or smokes)

Rob

[krazy skwerel]

No beer? Now thats just crazy talk, and you say your in college. You gotta get your priorities straight. haha :batman

[420sxWETDREAMS]

http://www.ka24der.com/

Supercharger vs. Turbo
There are many things one should consider when deciding what is the right setup for their application. First off, peak HP and TQ isn't everything. The M62 superchargers yield usable power that is noticeable all throughout the powerband, but especially at low to mid range RPM's. This is due to to inherent properties and efficiency of the Eaton M62 roots-style supercharger and 2.4L KA24DE motor combined together.

Here are a couple selling points to put it in perspective:

Powerband is similar to a small stock V8 but much cheaper
Yields more power and torque down low compared to small, medium and large turbo setups
Associated parts are readily available and replaceable unlike most JDM motor swaps which can be problematic to source parts quickly and conveniently
Compared to most turbo setups, installation is easier and maintenance time is reduced
Because supercharger whine is awesome

Applications
The KA24DER.com kit is intended for 91-98 Nissan 240sx's with the DOHC KA24DE engine. The kit is not guaranteed to fit ABS-equipped models due to supercharger inlet elbow placement inevitably conflicting with the ABS unit.

Who Will Benefit
A supercharger kit is not for everyone, but on the flip side, nor is a turbo kit. Below are some of the platforms we believe the supercharger kit would be advantageous towards:

Daily drivers
Drifters
Autocrossers
Road racers

Typical Gains
Dyno SheetAt 10 psi, we recorded 255 wheel horsepower and 249 ft.lbs. This is an estimated 120 horsepower increase at the wheels compared to stock. But like anything else, there are many variables that come into play. Results may vary depending on motor condition, compression ratio, pulley used and resulting boost level, ecu tune, type of cams used and if headwork is done, exhaust system setup, gasoline used, elevation, dyno utilized, etc.


The kit includes the following components:

1/2" thick 6061 aluminum CNC machined adapter plate between the supercharger and stock upper intake manifold assembly; intake ports are radiused; three 1/8" NPT ports for vacuum/boost signals; provisions for stock AAC valve and air regulator; includes the stock Nissan gasket between the supercharger and the adapter plate
1/2" thick 7075 aluminum CNC machined alternator relocation bracket; includes pullies, tensioner and drive belt
6061 aluminum 3" intake pipe assembly setup for use of a Nissan Q45 throttle body; slip-style recessed CNC machined flange/tube assembly allowing for easy installation and access to bolt heads; 1/8" NPT port for actuator signal line
6061 aluminum Q45 throttle body cable bracket (bolt-on)
All necessary hardware and gaskets for installation
Detailed installation instructions

Here are some of the other items you will need to buy or prepare for:

Eaton supercharger from a 2002-2004 Nissan Xterra or Frontier (from the 3.3L V6); the supercharger inlet will need to be ported to our specification and gasket matched; the bypass valve butterfly casted housing will need to be machined down to create a sufficient air gap between it and the adapter plate; the first 4 cooling fins (closest to the pulley) on the supercharger housing will need to be machined down flush if you plan on using a stock style oil filter; otherwise an oil filter relocation will be required for proper clearance
Nissan Q45 82mm ID throttle body (from the 4.5L VH45DE motor)
The stock mafs HP/airflow potential is very limited; to take advantage of full airflow potential through the mass air, we recommend you using a Q45 mafs as its resolution and airflow limit is more suited for the supercharger kit
Relocation of the battery to the trunk will be necessary as the intake pipe needs to be routed in its path down towards the passenger side fenderwell (may need to cut the battery tray with a holesaw to create room for the pipe to pass through)
We recommend at least 370cc injectors for boost levels up to 10 psi on gasoline; beyond that, an injector upgrade will be required; you may also want to upgrade your worn out factory fuel pump with a DeatschWerks 300+ LPH fuel pump for more safety margin as well; for E85 applications, plan on a minimum injector size of 550cc
Factory fuel and ignition maps will not be appropriate for the supercharger kit; we recommend either a custom ROM tune (Nistune or Calum) or purchasing a standalone (AEM, Haltech, Motec, etc.) and then having your car professionally dyno tuned; contact us through the form on the left if you have interest in having your car tuned by us or a recommended professional

[darens13]

thread from the dead!

[sandcrabsailor]

HAHAHA I hadn't even noticed until you said something! And 420sxwetdreams beat me to everything I was going to say.
Thanks for saving me some red face.

[darens13]

well while we are on the subject of supercharged ka's, if anyone knows where i can get a cad file or dimensions for the supercharger plate let me know. i would really like to build my own since i can do it myself a lot cheaper.

[s13coupe1991]

FAIL

[Promise Land]

does anyone have pictures of the kit on a car? The YouTube videos show dyno pulls, but you can't tell the details in the engine bay.

[krash]

From BorHor's build thread : borhor-s-vert-build-t366631.html

Heres some pics of an adapter plate and the supercharger:

[OM3GA]

that is a pretty neato kit

[gigabit240]

Hahaha i was reading this thinking.. wtf? why hasn't anyone put a link to a supercharger build.. then i looked at the date lolz