Electrikhead

rofl = Rolling On the Floor Laughing , silver rotar, its most commonly found in CS which is Counter-Strike a game i live by and swear by its the ****! ! werd you guys kick ***, im gonna take some pics of my car this week and post them up to let you all take a look and give oponions

spaz

would the Centrifugal style s/c have a problem with the high rpm of the rx7...considering that the red line is so high... i read that the Centrifugal style s/c depends on a belt the rpm of the engine... would that mean the u need a different pulley in order to not blow the s/c ???

Bridgeported

For superchargers, the centrifugal one is best suited for high RPM applications!

stillmatic

I thought that with a supercharger you already had to have the horse to gain the horse. I.E. it takes horses to make em. But with the turbo, it takes nothing but exhaust there for you get "turbo lag"... I don't know much about superchargers but my dad does because that's what they use on some airplane engines. Most of the time they use turbochargers...

I don't know how much of a difference you would get from either but with the supercharger, there is no lag. But then again I don't know how much power you can make from a stock 143hp(guess)gxl. I have the same car... I am planning on playing with this one and one day buy a 3rd gen. Or do a TII switch. Turbos are a lot of work and money to put on a gxl. Best off doing a TII switch and upgrading that engine to its max(if you want to keep the GXL).

I am working on my exterior right now but I am going to get to the engine soon and will be doing some serious work on it to get the most power without shortening the life span.

Also, I hope that the fact that an old guy used it as a "Sunday car" doesn't hurt you in the long run!

Bridgeported

I think you are correct if I understand what you are saying. Just to clarify, a supercharger requires more power to run than a turbocharger will. This is what I touched on in my longer post above when I talked about the efficiency of each supercharger. Generally, the lower efficiency that a supercharger has, the more power that is required to run it. I've heard of some setups using as much as 20-40 hp just to power the supercharger.

With a centrifugal unit, there is not "lag" because it will always be spooled up, but at the same time there will be some lag because at a lower RPM there isn't as much boost as at a higher RPM when the unit is fully spooled and into it's efficiency range.

Electrikhead

I hear you Stillmatic, my ULTIMATE goal is to own each one of the Generations, i.e. find each one of them in mint condition, my search has left me with just having to find a 3rd gen, although right now there is a 93 R1 red with tan interior only has 24.000 original miles, and is still under the FACTORY mazda warrinty till 70,000 miles WHICH IS AMAZINg, but that comes at a price gg over 20 grand, and the guy is like " i just bought a viper so i dont drive it too much anymore...." But i hear you im still debating, Bridgeported has me convinced that super is almost the way to go, but first i must change Flywheel, exhaust, clutch, intake... i have already done shifter bushings, a piece of a vent, and Tokico suspension kit. ANd to complete the ultimate goal is to have the RX-8 that i "ordered" at www.mazdarx8.com hahah

88 vert

[IMG]C:\My Documents\supercharger.JPG[/IMG]

This is the nelson setup originally sold by mariah motorsports they no longer sell this kit,I acquired mine used off parts trader.com they are very pricey and a good amount of money to do the setup right and safe.I ahve installed all 4 550 injectors,Apexi s-afc,Cartech FPR,Walboro fuel pump,K&N air filter,and full racing beat exhaust.I have not had a chance to try this setup yet for im still in the process of installing it,i am 90% done with it.I have 140,xxx miles on the motor so i dont expect it to last long,but it will be fun while it does.You just have to go with what you want really,I chose the S/C because its different,but if im not happy with it i will be going turbo.I just like the idea of no turbo lag,I drove a friend of mines TII and it has really bad lag,and i didnt like that feeling..

Bridgeported

But I bet you would like the feeling of the big turbo coming on and the car rocketing past the supercharged RX-7 beside you?

88 vert

o yes i would like i said ill give the S/C a try and if i like it ,when i get a new motor i will probably send the S/C off to get rebuild and add more boost but for right now its a good learning experience, inever messed with forced induction before and the more i learn the more i like so give me time,either i will have 1 fast *** S/C vert or 1 fast *** turbo vert,either way it will be a learning experience for me.

spaz

how much boost will the s/c put out... and will the n/a rotors be able to handle the boost.... one more question.... if you do a rebuilt can you put tII rotors in the n/a block and slap on a s/c without worring about the engine blowing???

88 vert

the S/C was just rebuilt,but it waa only rebuilt back to stock,which is bout 9lbs. you can have them rebuilt up to 17lbs of boost but wont last very long,as you could figure.I have never heard of anyone having problems out of boosting the NA motor and ive heard of boost levels reaching 12lbs on a NA motor.I dont think i will have any problems im going to have pinapple build my next motor for me and set it up for S/C.

KamakazieX

I had an idea of putting an intercooled/alk injected V1 or V2 vortech on there at about 12lbs, now if the boost was a little higher, and a wastegate/bov was used say anything about 12.5 then youd probably be with something in the range of a T3 if you set it up right...

get a megasquirt kit before you even think of bolting anything on, you need to be able to accurately control fuel and ignition before you consider anything else. If you've got 3000 for a super you've got 200 for a megasquirt!

Jager

iTrader: (10)

Quit kicking up posts!

gingenhagen

A better question would be how much money you have to spend. If you want a supercharger, the only pre-made kit is the camden one, which is a roots blower, and costs $4000 (recent thread on it...search for "supercharer"). If you want a turbo, you can buy a T2 for $3000-4000, or you could try swapping in a turbo engine (kind of bothersome, what with the drivetrain also needing an upgrade).

Anything other than the 2 options I gave, you will be custom fabbing everything. If you can do it all yourself, it'll be reasonably priced. If you can't do fabrication, then it's going to be very expensive.

rotaryroket87

camden makes a kit just for they fc and hey what do you kow its on the front page go to
www.camdensuperchargers.com and its right there go to the installation process for pics but if i were you i would go turbo, rotaries have more power at low end with back pressure and the turbo obviously gives that well and at high end you will be pushing uber amounts of air into the motor.

SonicRaT

iTrader: (6)

Does nobody look at dates? This **** is over 3 years old.

Jager

iTrader: (10)

Read my post a little ways up. People really need to read the dates :S!

Louisiana_FC3S

there's a pretty good looking kit on horsepowerfreaks.com, plus it's a centif. sc.
the url is:
http://www.horsepowerfreaks.com/pric.../Sport_Compact

i was thinking about getting this one.

Aaron Cake

iTrader: (1)

There's nothing right about this post besides the fact that Camden is making a (rather poor) supercharger kit.

Tech_Greek

I can pull on most high trapping mph cars right now off the line up until about 70-80mph, then the effect runs out, it falls flat on it's face (running out of fuel, needs a tune and bigger injectors)...

I'm guessing around 200 RWHP for the car, never got it to the dyno...it's been a FUN car but it's about to be sold to a local guy as he's dieing to get his hands on it...

For me, it was the unique factor, when I could pull up next to a 10 second evo and have people come stare at my car because of the whine then it was a nice feeling...sure it wasnt fastest but it was faster than stock (I'm guessing mid 14's)

Jager

iTrader: (10)

Ever bring it to the track like you told me you were?