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Found a 3.8 supercharger on craigslist...

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Old May 17, 2012 | 05:18 AM
  #1  
ScorchedBird12's Avatar
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From: Providence, RI
Car: 1989 Pontiac Trans Am GTA
Engine: TPI 5.0 V8
Transmission: 5-speed manual
Axle/Gears: Stock
Found a 3.8 supercharger on craigslist...

Knowing that this could possibly be an M62 I figured already that it would be too small for the TPI 305 and too costly to get it to fit in the first place....so I clicked on the listing anyway:

http://providence.craigslist.org/pts/3010747880.html

$75 is a steal for a supercharger especially if it works. I've read up a few threads on here regarding on using the M90 here and end up knowing that you can spend quite a few dollars on getting it to fit. But for $75 if I can get it to work in the future after ironing out all the small kinks in my car I figure I might as well think about nabbing it. I mean all the money I can spend fabbing the fitment I'll still save money...I mean how much do these things usually go for anyway?

Just wanted to know if it's even worth nabbing it to hoard it...I will grab it if it's possible and practical (mainly practical because of the cost of the unit, I can even probably haggle it down to $50 lol)...I mean I'm not going to spend $75 on a paperweight. If I can buy and use it down the road, why not? How often does a $75 supercharger come into your life lol.

Last edited by ScorchedBird12; May 17, 2012 at 05:22 AM.
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Old May 18, 2012 | 08:18 AM
  #2  
anesthes's Avatar
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From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: Found a 3.8 supercharger on craigslist...

Originally Posted by ScorchedBird12
Knowing that this could possibly be an M62 I figured already that it would be too small for the TPI 305 and too costly to get it to fit in the first place....so I clicked on the listing anyway:

http://providence.craigslist.org/pts/3010747880.html

$75 is a steal for a supercharger especially if it works. I've read up a few threads on here regarding on using the M90 here and end up knowing that you can spend quite a few dollars on getting it to fit. But for $75 if I can get it to work in the future after ironing out all the small kinks in my car I figure I might as well think about nabbing it. I mean all the money I can spend fabbing the fitment I'll still save money...I mean how much do these things usually go for anyway?

Just wanted to know if it's even worth nabbing it to hoard it...I will grab it if it's possible and practical (mainly practical because of the cost of the unit, I can even probably haggle it down to $50 lol)...I mean I'm not going to spend $75 on a paperweight. If I can buy and use it down the road, why not? How often does a $75 supercharger come into your life lol.
edit: That is an M90 for sure.

If it's am M90, its 90cfm per stroke, with a max of about 550 cfm.

It could be mounted with with some fab work on a 305, but probably wouldn't create more than 1-2psi of boost.

-- Joe
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Old May 18, 2012 | 10:14 AM
  #3  
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From: Salem,Oregon.
Car: '74 Firebird, '84 vette
Engine: 454 twin turbo, 350 HSR
Transmission: 4L80E, 700R4
Axle/Gears: 9", Dana36
Re: Found a 3.8 supercharger on craigslist...

I have a couple of these little blowers, the biggest problem with adapting them to almost anything is the throttlebody location. And you's need to run two of them in parallel to do much good on a SBC.
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Old May 19, 2012 | 09:44 PM
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83 Crossfire TA's Avatar
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Re: Found a 3.8 supercharger on craigslist...

I've posted this before, look around here. We had one mounted on my brother's car like an accessory on a .030" over ford 5.0 (306) and with some porting, the right pulley sizes it was enough to push roughly 9psi boost and made enough power to run 120mph in a 4 door ford LTD.
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Old May 20, 2012 | 12:35 AM
  #5  
ScorchedBird12's Avatar
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From: Providence, RI
Car: 1989 Pontiac Trans Am GTA
Engine: TPI 5.0 V8
Transmission: 5-speed manual
Axle/Gears: Stock
Re: Found a 3.8 supercharger on craigslist...

Originally Posted by 83 Crossfire TA
I've posted this before, look around here. We had one mounted on my brother's car like an accessory on a .030" over ford 5.0 (306) and with some porting, the right pulley sizes it was enough to push roughly 9psi boost and made enough power to run 120mph in a 4 door ford LTD.
I already did look around and I do remember reading your story...but I wanted to pretty much ask if 9 psi of boost was worth $75?
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Old May 20, 2012 | 07:18 AM
  #6  
anesthes's Avatar
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From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: Found a 3.8 supercharger on craigslist...

Originally Posted by 83 Crossfire TA
I've posted this before, look around here. We had one mounted on my brother's car like an accessory on a .030" over ford 5.0 (306) and with some porting, the right pulley sizes it was enough to push roughly 9psi boost and made enough power to run 120mph in a 4 door ford LTD.
A 550 cfm blower made over 560hp ?

-- Joe
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Old May 20, 2012 | 07:19 AM
  #7  
anesthes's Avatar
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25 Year Member
iTrader: (13)
 
Joined: Jul 1999
Posts: 12,093
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From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: Found a 3.8 supercharger on craigslist...

Originally Posted by ScorchedBird12
I already did look around and I do remember reading your story...but I wanted to pretty much ask if 9 psi of boost was worth $75?
No such thing as a 9 PSI blower. Blowers move air, and all are rated by CFM. PSI is a product of backpressure, based on how restrictive your engine is.

A blower that makes 9psi on a 302, might make 2psi on a 454..

-- Joe
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