ok i was thinking about the whole turbo thing but then i realized that with the same internals and the tuning and a supercharger i could easily build a better drifter than a turbo set up becuase a supercharger would have better torque at a lower rpm. just wondering what you guys thought if i took off my a/c compressor and replaced it with a supercharger. would i be the first or would it just be dumb just curious!

 

AFAIK, nobody makes a bolt-on kit, so you'd be on your own when it comes to fabricating a mount. It's not impossible - Vortech makes a centrifugal SC that would be perfectly sized - but it wouldn't be as simple as just replacing the A/C compressor.

 

oh i know. and im actually buying the kit for the nissan 350z from vortec so all i really need to do is pull my engine out build a hanger for the supercharger. rebuild the bottomend of the engine new pistons sr20 injetors. upgrade the fuel pump. and i should be ready for some serious drifting

 

Sounds like an adventure. Take lots of pictures...
:-P

 

it's been done to a hardbody truck. Check out NICOs ancient threads on it, lol.

 

meh gay, turbos are best

 

Cetrifugal sperchargers do no produce more torque down low. They have to spool up just like a turbo, but don't produce their maximum boost until redline.

A properly-sized turbo is going to produce more hp/torque everywhere in the rev range than a supercharger....and with the relative ease of turbocharging a 240, the supercharger is a lot of work for a less ideal solution.

-Justin

 

not worth the money, stick with a turbo

 

centralfugal sc does produce more low end torque than turbos because the sc is ran off of the crank and turbos are ran from exhaust gas.
A supercharger for the 240sx is not a very good idea. the idea for drifting is to keep the rpms up. The low end torque the sc would give you is good for "off the line" racing. You see, when you are in a drift the rpms are already high so the turbo would make it better for drifting. also, a turbo has more of a power upside since it is not extracting any power from the motor to run the turbo.

 

No, they don't. That is 100% incorrect.

Centrifugal superchargers are basically just the compressor half of a turbo. They don't boost immediately, but have to spin up to speed to produce boost.

In addition, they are not equipped with a boost control mechanism that would emulate the wastegate on a turbo - so they have to be geared to hit the maximum boost at engine redline - not before.

That means that you will never hit maximum boost at less than engine redline.

Some roots and screw type chargers will boost lower. These chargers are not generally used in bolt-on applications for imports (although I think jackson racing may do a couple of applications like this).

In any case, 99% of the bolt-on superchargers out there are centrifugal, which have all the drawbacks of turbo (slight lag to boost, hot intake chages) without the biggest benefit - the ability to hit peak boost early and hold it to redline.

-Justin

 

I knew that max boost didn't occur before redline but I didn't know the boost lag on the centrifugal was like the turbos. Granted, I've never driven a centrifugal sc'ed car but I have driven a roots style and thought the basis stayed the same.
Anyways, yeah....don't supercharge your car. Turbo #1!!!

 

its not exactly like a turbo as far as lag is concerned but close. justin is right it uses a gearing system in front of the compressor housing. superchargers are way too costly for just about any app. now a days. turbos have gone a long way since the whole turbo vs. superchager thing has been around. anyway. get a properly sized turbo and it will be much better than a supercharger and cost less. not everyone has to get a big turbo. i think everyone thinks of lag because of big turbos and hi boost. larger compressor and lower boost, size it right and you get what you want, unless its a lot of power.

 

i've reasearched over and over again. Turbo always comes out on top for our engines.
HOWEVER, if you WANT to go sc then an Eaton M62 or M90 supercharger will bolt right onto the ka24. You can find one of a '93-'96 thunderbird. Nico's has some info on it.
ALSO, don't forget, you'll have to ahve the underdrive pulley, they don't make one that will work. so its going to be lots of dough and time.

Easier just to trubo charge. Don't get me wrong i love s/c ... but turbo winds in this situation.