RX7_GSL_1985

I want to do one of the 2 to my car but i dont know which one costs more,

I would like to know 1. which one gives better gas mileage i know that they both reduce mpg but which one reduces the least.
2. which one gives more power
3. which is easier to install
4 which one is cheaper and if i dont do it myself which one will cost more to get installed.

Directfreak

iTrader: (2)

1. which one gives better gas mileage i know that they both reduce mpg but which one reduces the least.
Atkins claims 25 MPG on some of their S/C setups.

2. which one gives more power

A Turbo has more potential horsepower.

3. which is easier to install

After seeing some of the Atkins setups this weekend, I would say the S/C - and you get to keep all your current bolt-ons like exhaust and headers.

4. which one is cheaper and if i dont do it myself which one will cost more to get installed.

A budget turbo nikki setup can be had pretty inexpensively if your pretty handy yourself - (see Coldy 13, Gregs, IoTus, and MoreMazda to name a few)

The Atkins setups cost about 2500 or so depending on the blower and carb combination, and is a pretty complete system. A higher budget Turbo system can easily - and I do mean EASILY exceed 10-15 thousand.

I would say the S/C would be easier to install since there is no intercooling allowed, and it pretty much only a carb, intake and S/C away from being installed. I don't see why it would exceed ONE day to install it, since their really isn't any fabrication involved.

SERIES 1 XLR8

it all depends on what kits you can get and what turbo setup you got.......

enigma32

@ directfreak


Look at that! All answered quite cleanly and completely in one response!

bouis

25 mpg? Hah! I wonder if that comes with a money-back guarantee.

1984special

I bet it is 25mpg if it's mostly cruising.

Just wanted to know why superchargers don't allow intercooling because I am interested in the Atkins EFI kit myself.

prefix

Depends on the kind of supercharger. A centrifugal allows for intercooling and you'll need it because it heats up like a turbo, but there is no real need for one on a roots style. The charge isn't heated up enough.

web777

It doesn't allow intercooling because the carb is on top of the SC which is attached to the intake manifold. Turbos need intercooling since the exh spins the turbo which heats up the air.

Lotus00

How much is the supercharger EFI kit cost? All I can find on thier website is the 7" and 5" blower...

1984special

CamdenS/C



=) sweet!

Lotus00

So that wont bolt right on to an 85 13b, would it?

1gendreemer

I was wondering the same thing. My 84 GSLSE needs an SC....

CODE BLUE 2

I have a Camden supercharger p/o polished 4port turbo housings in my 79 and there is NO WAY my car ever could get 25mpg...I put $20 to fill up and I can go 160 miles on a tank of gas. This is not getting on it all the time. It includes freeway and city driving.

Though the gas mileage sucks bad, I am definetly a supercharged person. Im also a fan of Turbos. Gotta love both of them....

I think pricing is probably close to the same, and superchargers are probably an easier set up. My car is carbed and in the fall wish to go EFI instead. Will be costly but will add much more HP.

Ive driven in Atkins 2nd gen supercharged 7in EFI car from california to washington state, and wow that car rocks and rolls.

Well at this point my preference is a SUPERCHARGER....
Have any questions catch me on aim.
strawburbr1

bliffle

I'm leaning towards an SC system, since I had a lot of experience with them on brit cars 100 years ago. Well, it seems like that.

Pretty benign: low speed torque, good mileage when you treat it normally, plenty of available power. Only problem I ever had was burning valves: hey, wait a minute! My license plate says "NO VALVE"! Hey, that's a break!

B

CODE BLUE 2

Smile bliffle,
My supercharged car just does something for me when I get in my car. I have instant right now power, love the sound of the whistle. Takes that turbo a sec, while my supercharger is right now. BUT I do like turbos too....gotta love the sound of them also.

Hey get your supercharger from Atkins rotary, sister company is camdensuperchargers.com

Ive had nothing but great luck with them....whats even better is they are located in WA state where I live. But hey they are nothing but helpful if needed.

Good luck
Let us know what you decide on....again if you need any other info you can catch me on aim...

CODE BLUE 2

Well heres my car domain if you would like to check it out.

http://members.cardomain.com/codeblue2
http://www.camdensuperchargers.com/

web777

Code Blue2,

I dig your car. Nice, clean setup!

Lotus00

Anyone know if that supercharger intake for EFI would bolt on to a first gen? I really want to go supercharged, but I also want to keep EFI...

Terror7

I realy want to supercharge but only 1 person over here has said that it will do well. Someone else said that cos they dont have to talk to begin with, they need talk to start with for a superchager to perform well. (youve gotta give to take) Had another very good mechanic bassically look at me like i was dence when i said i want to do it. The only things rotary super over here are a 20b That can never get tuned. and Datsun that pulls 8.5 sec with a 13b with a screw compressor. I really want to do it now so i can prove that it can be done to so many here.

Directfreak

iTrader: (2)

https://www.rx7club.com/showthread.p...5&pagenumber=1

1984special

It was a 16 page read, and a messy one at that. Thanks for the link though! Very interesting to try out if you're bored all summer...

Heres the vid of the homemade $300 S/C
http://www.sonicrat.org/na-sc.mpg

REVHED

Intercooling has nothing to do with the fact that the exhaust gasses spin the turbo. Any time you compress a gas (air) it heats up. The amount it heats up depends on on the efficiency of the compressor. Roots style blowers are generally less efficient than turbo's at a given boost pressure so they would benifit just as much from intercooling. They reason it's not normally done is because the supercharger is usually mounted after the carby and running gas and air through an intercooler is not good for your health.