I have a '91 RX7 with a stock FI 13B NA engine. I use it as a daily driver, and weekend drag racer.

 

This is an everlasting debate. I voted turbo simply because the parts are more readily available to turbo our cars. Which is better...well thats just an opinion and should be left up to the owner...

 

supercharger is probly going to be more reliable than turbo... but i guess it really depends on where you want your power at. with turbo youll have a little bit of turbo lag, wich i guess these days you realy odnt have to worry about anymore... with a supercharger your pretty much getting instant power... theres more to that, and both have thier pros/cons... but we need to know more about your whole set-up

 

IMO I like Turbo's powerband better, I likw the swift kick in the *** feel. Plus for the most part you can always make more boost, but not on an 6 port engine. So.....Its more a personal preference.

 

why not on a 6 port engine? i was thinking about leaving my 6port, getting it ported and the rotors beveled and turbo-ing it withought the whole t2 swap...

 

Please elaborate on this one... I'm assuming you mean put lower compression rotors in?

 

A turbo is like adding free horsepower. You are using wasted exhaust gasses to produce more power. With a supercharger you are taking power away from the engine to make power. So say if you boost 6psi with a turbo and 6 psi with a supercharger with all else being equal, the turbocharged car will make more power to the wheels.

 

twin screw supercharger(only supercharger worth its salt)= good throttle response and early boost all the way to redline ~ 340hp pin you in your seat corner exit, more fun imo. oh yeah, you can fmic this supercharger! this supercharger will take to higher boost better than the roots.



centirfugal supercharger= same as the single, just belt driven... probably the only benifit is cost.



big single= huge boost, more power, too peaky for having fun with around town and in the mountians.

good for drag and hwy racing.

 

Superchargers create massive power all the way through the powerband. Thats the only reason I like them.



I would take a turbocharger before a supercharger just because its cheaper and easier to do. But if you have the time and money, a good supercharger setup will outrun a comparable turbo setup. Unless you do that crazy electric assist turbo charger, then it will be about the same.

 

i think he's talking about the CLR rotors.

have you seen them? i actually didn't know about them until last night when i was reading thru the other forum.

they look like this: