Supercharger on a carborated motor?

[Pegasus_Crazy]

Fine, I admit it. I'm stubborn, pig headed, and just plain impossible. Yet somehow I'm gonna pull this one off.

I pulled the Gen II 3100 with a blown head gasket and some rather nasty anitifreeze-in-the-bearings wounds out of my Beretta and rebuilt it. After assembling the short block, I came up with the unique idea of turning it into a distributor fired, carborated freak of nature and transplanting it into my new love, a beaten but not yet hopeless Fiero 2M4.

Everything is falling into place, except one thing... Somehow I've got it in my head this engine simply cannot live with normal aspiration. As much as I looked, I cannot find a supercharger intake manifold to fit a non EFI 60 degree V6 ANYWHERE. I could just machine a custom carb plate for any old m62 but making an entire intake manifold is another story.

If you have any idea, no matter how crazy it sounds, please speak up

[bszopi]

Do a search for Fageol...

[dohcfiend]

o man i hate to be the devils advocate here but have u thought about a centrifigal supercharger? i think they have a blow-through setup for carbed engines.

[LA1 Z24]

There is a setup out that that basically encases the carb inside a pressurized box...Seen it last night on Rides, on the discovery channel. Look up "Eleanor GT 500E Super Snake" and take a look at the motor pics

[Pegasus_Crazy]

Fageol sadly wouldn't answer my E-mails. I think the pressurized blow through system is a great idea (it also means I could use twin turbos - hee hee hee ) Still looking for some good pics on how it's done, the shelby lead turns up lots of hype about the movie car and little about it's supercharger. In particular I'm wondering how a 390cfm Holley 4bbl with vacuum secondaries would handle it?

[bszopi]

There is a guy on here (614streets) with a Fageol SC. Do a search on here and you can see pics of his setup.

[geoffinbc]

Talk to 614 and visit his site

http://614streets.com/2.8.html

[Pegasus_Crazy]

614 Streets has a pretty nice setup, but.....

Guess you DO learn something new every day.... an intake manifold designed for an old school iron head 60 degree pushrod motor will not fit the aluminum heads of a 3x00? Oh man this isn't good.....
If this is in fact true it would mean using my rather sexy canted port splayed valve aluminum heads with a carb is out of the question. Someone please confirm or deny this nasty little bit of info so I can either shoot myself or sigh with relief.

[bszopi]

Unfortunately, shoot yourself...

[RacerX11]

true, the carb intakes won't work with the AL heads. Also, it will be very difficult to use a distributor with them as well.

Marty

[Pegasus_Crazy]

Thankfully Malory makes a rather nice dual point distributor that because of it low tech design is much smaller then the usual oversized GM HEI Spark cannon, and will clear the heads. Now on to bigger and brighter things...

I do have the original SFI intake manifold with it's rather nice intake runners. Now, let's play pretend here.... Say I slid some aluminum plugs in the injector ports and tig welded then in place from the top. Then I took a Weiand 142 roots blower and made a bottom plate that adapted to the 6 ports the plenum used to attach to. On top I just throw on a standard holley adapter plate for a 390cfm 4bbl. It's absolutely nuts... but would it run?

Maybe I should move this thread over to boost?

[donk_316]

https://www.fierosound.com

He put an ATI procharger on a Fiero.

[Pegasus_Crazy]

www.fierosound.com

He put an ATI procharger on a Fiero.

It's an EFI motor though

[RacerX11]

Thankfully Malory makes a rather nice dual point distributor that because of it low tech design is much smaller then the usual oversized GM HEI Spark cannon, and will clear the heads. Now on to bigger and brighter things...

I do have the original SFI intake manifold with it's rather nice intake runners. Now, let's play pretend here.... Say I slid some aluminum plugs in the injector ports and tig welded then in place from the top. Then I took a Weiand 142 roots blower and made a bottom plate that adapted to the 6 ports the plenum used to attach to. On top I just throw on a standard holley adapter plate for a 390cfm 4bbl. It's absolutely nuts... but would it run?

Maybe I should move this thread over to boost?

Have you got the distributor to fit yet? Even the small diameter GM HEI distributor with a remote coil will not clear. It isn't the heads, it is the lower intake runners that don't clear.

Would t run? Sure, maybe. But probably not very good. The SFI intake runners are designed for dry flow. I would very very surprised if you were able to get even mixture distribution to all of the cylinders. You would be creating a very convoluted path for the air/fuel mixture to travel, which is condusive to fuel dropping out and puddling.

Marty

[Pegasus_Crazy]

The Mallory dual point does clear because I've tried it, but I get what you're saying
about the intake.... when I stop and think about it there's just no way to get a suitable distribution of fuel (using aluminum heads with a carb) without making a custom intake manifold.

Might be iron head time.... Darn! Any advice on improving flow through the iron heads, or perhaps even aftermarket performance Gen I heads?

I'm assuming my roller cam will still work.....