Blow Through Carb

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Jan 1, 2005 | 11:41 PM

highboy1977

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Joined: Dec 2004

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From: Yakima, WA

Blow Through Carb

I was wondering if you have to have a blow through carb to run a turbo. I was thinking about putting a turbo on my 460 with about 7lbs of boost, and can get the turbo for cheap, but I didn't want to have to buy a new carb. I have heard people talking about converting Holley carbs to blow through but not Edelbrocks, can you do it? Thanks.

Jan 3, 2005 | 07:14 AM

Freightrain

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From: Ohio

Not sure what would be the reason you couldn't??

The only thing maybe the design of the box? Maybe only compatible with Holley carb?

I don't think it's the carb, just the design of the body.

Give Vortech or Paxton a call and see what there carb boxes will work with.

Jan 3, 2005 | 08:13 PM

stevef100s

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From: Destin/Ft. Walton Beach,

I remember that there are special floats that have to be used in a blow through setup. Hollow floats will collapse. I'm not sure about the rest of the mods needed.

Jan 4, 2005 | 12:39 AM

crash66

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Here is a site I found awhile back. It is very informative and I hope to do some playing with this stuff within the next few years or so.

http://www.hangar18fabrication.com/blowthru.html

Jan 4, 2005 | 07:50 AM

Freightrain

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From: Ohio

Ya, you can't run the hollow plastic or brass type floats. They must be the black plastic floats(they are solid, not hollow). A simple switchover.

Not sure if Ebok carbs come that way or if they have a selection.

Jan 5, 2005 | 06:27 PM

DYERS6-71

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From: ARKANSAS

buy the sa designs book on supercharging from summit it covers what your looking for

Jan 8, 2005 | 06:52 PM

Yeller

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You don't have to set your system up as a blow-through. You can set it up to draw the air through the carb...oddly enough called a draw-through set up. It's not as common but it does have its advantages. You don't have to modify the carb and you don't need a blow-off valve. Check out this site for tons of info. www.turbomustangs.com/forums
They have a carburated turbo forum and a junkyard turbo forum. Both have stickys on how to modify a Holley and Edelbrock for blow-through. Read the stickys in the forums before you post...they get kind of uptight on that site if you ask questions that are already answered.