how much would it be to put a 20b in a 94 rx-7

 

About $35,000.

http://www.pettitracing.com/sections/Banzai.html

 

You *might* get lucky and get as low as $25,000, but I doubt it. $30,000-$35,000 is the going number.

 

wut all do i need to buy and how much are the parts

 

You can try to SERACH function to find out some of this info. It's been asked a lot in both the 20B forum, and the 3rd Gen Specific forum.

Here is *basically* what you need:
- complete 20B engine with all accessories ($3000-$4500)
- new fuel system (pump, lines, etc)
- stand alone EMS (such as wolf3d, haltech, mircotech, motec, electromotive, etc) ($1500-$3500)
- new ignition system
- subframe to mount 20B in
- new exhaust system
- custom rad and intercooler and piping

There is more, that's the basics though.