I have a 1991 RX-7 N/A 5 speed. I have a Mazdaspeed Shortshifter, Bonez Flywheel, Bonez Clutch, A'pex Dual N1 exhaust, Bonez superflow system, and a Bonez intake. it is pretty fast right now but, naturally, I want to go faster. Does anybody have any suggestions on my next upgrade?

 

the magic juice, nitrous

 

 

N20 is just about all thats left. Also, have you lost as much weight as possible?

 

You can always pull apart the motor and do some portage. And of course remove as much weight as possible (inc. ps, ac, bracket, smaller battery etc etc), do as much porting as possible (manifolds, housing, tb etc).

 

Can I turbo it? I mean I am willing to spend a little money if it means big power. If I can how much power can I get with a mellow, steetable, not-much-lag turbo?

 

You technically can slap a turbo on any car. Just depends how much custom fabrication you are willing to do and how deep your pockets are. What kind of goal(HP or 1/4 mile time) are you looking for?

 

If you've got a chassis in good condition your best bet would be to swap the entire drivetrain from a turbocharged RX-7 into your car. All said and done, it should cost around $3000 depending upon whether or not you rebuild the engine, transmission, and diff (if it's a clutch type).