since im a TRUCK MOTOR

or KA fan ill have to contribute to this thread with the KA-T option.
Turbo KA24s can make very reliable power with little effort and some know how. this isnt going to be for the novice 240sx enthusiast unless you buy a bolt on kit and take it somewhere
Parts for a KA24 DIY Kit
Turbo Manifold (matched to your turbos flange)
Turbo, of course

Custom downpipe or possibly sr20 downpipes
Custom hot and cold pipes
Intercooler
BOV
Wastegate(unless your turbo is internally gated)
Upgraded Fuel pump
Upgraded Injectors
Some type of Fuel Controller
Highly Recomended
EGT Gauge
WIDEBAND o2
New Clutch
so there you have the basic parts you need to boost your KA. the biggest downside in my opinion is the lack of boost the KA can take in its stock form but if your just looking for some fun 7psi on a SR20 t25 will make more than enough "fun" for you.
there are a few comapnies that make BOLT ON kits for our cars but the most comprehensive and cost efficent would have to be the BOOST DESIGNS kit which can be found at
www.boostdesigns.com . GREDDY also makes a bolt on kit for OBII or s14 KA24DE so that is an option for you s14 KA owners out there.
NOW if you want to go big power on your KA you have some options but all require a rebuild of the bottom end with some forged internals and a headgasket upgrade. there are alot of companies that make good parts for your KA and all that info is just 1 search on GOOGLE away but ill help you get started. you can begin at
www.ka24de.com
there is also alot of VERY GREAT INFORMATION to be found at
www.KA-T.org so make sure to stop by there.
also something for you *new* KA-T people out there to know is that some SR20 parts are interchangeable and a great upgrade for your KA. commonly used SR parts on a KA are the 370cc injectors and the stock t25 or t28 turbos. most INTERCOOLER kits made for the s13 or s14 chassis with SR20s but can be used on a KA-T setup with little modification to the hot and cold pipes.
i know theres alot more info that can be added so ill try and update this when i get more time!
Jimmy