1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Turbo or supercharger

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Old 11-12-04, 10:28 AM
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what about making a s/c using rotary logic?
Old 11-12-04, 11:16 AM
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Imagine, Super II's..... I just feel a turbocharger is more efficent becasue your basically just using wasted exhaust gasses. I have never driven a supercharged car. I have read the arguments over which is better, for whatever reason, etc. I'm jut glad my TII is a hell of a lot faster than my old N/A.
Old 11-12-04, 11:33 AM
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^i agree your old (my) car is slow....
Old 11-12-04, 11:37 AM
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lol, she had some mad top-end (I only went to about 130), and was a great commuter car, but definately not a stop light king.
Old 11-12-04, 11:40 AM
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Originally Posted by cds00bsmg
but definately not a stop light king.

agreed
Old 11-12-04, 12:13 PM
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all i know is i'm 90% sure i'm going to try a SC for my forced induction experiment. i like the idea of having some low-end power and the noise of the blower.
Old 11-12-04, 06:14 PM
  #32  
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Originally Posted by Sterling
Ooooohh I just love this arguement!
C'mon, let's argue 'bout it!
"Turbos suck ***, man!"
"Superchargers rob all the power they make and stress yer engine!"

David Grimes, I have not had a blown rotary, so's ya know. I proposed the idea about two years ago (maybe three) here of using an Eaton M90 on my stockport 12a. (Look it up. Lotsa good info.)
Here's what I have learned...

I have yet to slap that M90 on my little puppy, but whenever this old BS rears it's ugly head, I'm amazed at the knowitalls that wanna compare apples to oranges.

First of all, the Atkins blower...I met Dan. I like him, he's a great kid and not a malicious bone in his body. But his ole man bought the Camden from MazdaTrix, he didn't make it himself, and so I have no problem saying that that **** is older than Direct Freak!
Two lobes, straight, and I'm not even sure if there's a teflon apex seal. It requires plumbing for an oil line, utilizes no bypass valving and is not port-conducive to breathing in cooled charge.

The Eaton M90 is a tri-lobed helical rotor design and port-timed to get rid of that "Fuppp-Fuppp-Fuppp-Fuppp" pulsation, is lubrication-resevoired with a plug and can be orientated at any angle, and utilizes a bypass valve that while you're cruising is said by Eaton to leave the blower using 3 HP (THAT'S T H R E E ) to spin during cruising.
And Eaton guarantees, as an OEM part, their supercharger series for O N E H U N D R E D T H O U S A N D miles!

I only figured it was fair to mention that not all SCs are made equal, while turbos are pretty much one design.
2ndGenV8RX-7(Kenishi please forgive me for typing that) mentioned the Lysolm...the Eaton M series is about as close to a screw-type as most of our wallets will allow for.

Ehhh. Family takes priority, ya know how it is. Hopefully someday I'll be able to start my project. The plan is to make a kit with all the brackets and **** and sell it to you guys. Then you just need a blower and intercooler. Trying to make it so you can all boost your rotaries for UNDER $1500...12-15 psi max, and NO CHANGING PULLIES!!!
If it all works out, I'll have a manual over-ride for the by-pass valve that gets set into the dash.

"Dial-a-boost"

You people think I'm kidding.
You fail to mention your little story about riding in a certian blue supercharged first gen at sevenstock. The words you said when you got out of the car were simply "OH MY GOD".
Old 11-12-04, 06:53 PM
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Wink

Originally Posted by hornbm
You fail to mention your little story about riding in a certian blue supercharged first gen at sevenstock. The words you said when you got out of the car were simply "OH MY GOD".

Sterling
he has you on that one rember I was there ...
Old 11-12-04, 08:07 PM
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I had to searckh for this thread on what form member [Metallic_rock] got to drive one weekend so here is the thread link.

https://www.rx7club.com/showthread.p...=Metallic_rock


Later
Dan Atkins
Old 11-12-04, 10:54 PM
  #35  
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still waiting till i turn 18 so i can make enough money to hok mine up. that means by next summer i will have the M90 in and a few other goodies from sterling...and others...
Old 11-12-04, 10:56 PM
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My SC 12A blew out its front housing bearings in under a year....OK, I'm lying, but I felt a need to kick the antpile on this tired subject....
Old 11-13-04, 01:21 AM
  #37  
How About A Cup Of STFU

 
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I reckon I need me some of that religion.
Old 11-15-04, 01:56 AM
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The eaton M90 is for fuel injected vehicles correct? Most of us on the first gen pages arent fuel injected so the m90 isnt that feasable. If im wrong, then scratch everything written here. Ive looked at that supercharger before and wished it was for a carb setup, would be an easy ordeal.
Old 11-15-04, 09:15 AM
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Originally Posted by MountainDew67
The eaton M90 is for fuel injected vehicles correct? Most of us on the first gen pages arent fuel injected so the m90 isnt that feasable. If im wrong, then scratch everything written here. Ive looked at that supercharger before and wished it was for a carb setup, would be an easy ordeal.

The Camden S\C is set up for both EFI or carb...

Dad Atkins
Old 11-15-04, 05:41 PM
  #40  
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The M-(0 is for anything yer little mind dreams up!

Dan, I thought that Code Blue's car was very nice. And her hubby is a psycho!
But, I plan to multiply that power output from a streetported 12a by a factor of two.
Old 11-15-04, 05:51 PM
  #41  
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Sterling, you know I'll be up for a Sterling charger - let me know what you need. You got my email address.
Old 11-17-04, 12:01 AM
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Dan, he had mentioned that you can get one on ebay for like 300$. The ones on ebay are normally used from newer cars,thus not for carb set ups. Yours on the other hand, yes they are for carb if you like, but cost alot more than 300$. I think the value of your supercharger is fair, but not for everyone. If you supercharge anything, normally cost you 2-4000$ depending on what you buy used and new.
Old 11-17-04, 12:45 AM
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yea They're going for like 150 now and you can use a M90 on anything you want. I've seen them on FI and carbed mustangs. And I've seen awesome reliable setups witha used M90 for less than $800...
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