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XRX Series E85 Carburetor

XRX Carburetors

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XRX Series E85 Carburetor

ATM Innovation’s XRX Series is the ultimate 4700/4500-flange E85 carb available in 3 sizes from 1050cfm to 1250cfm, enough to feed the most robust big-blocks. A QFT die cast aluminum carb body is fitted with annular discharge boosters and ATM 4-circuit, 5-emulsion, 4-corner idle billet metering blocks. The throttle shafts are slabbed for unrestricted flow. And Braswell dual inlet Fuel Chute Lite fuel bowls with dual sight glass windows are fitted with 7/8”-20 AN #6 fittings for securing fuel lines. Methanol XRXs have a gold corrosion-resistant coating with black anodized billet blocks. They also have special gaskets and GFL diaphragms resistant to methanol fuel.

Product Details

XRX Series


When it comes to large 4700/4500-flange carburetors it’s hard to beat ATM Innovation’s XRX Series. You get a true custom built carb that is engine tested and ready-to-race right out of the box. And with the help of ATM’s Custom Shop technicians you can get your XRXs configured for anything from throttle stop racing to all-out 2 x 4 setups.

ATM starts with a QFT die cast main body and adds its own ATM billet 4-circuit, 5-emulsion metering blocks with 4-corner idle adjustment. It adds annular booster assemblies with custom sizes from .092”-1.05” depending upon the carb size and the application. Of course the XRX has changeable idle and high-speed air bleeds and changeable idle, emulsion, intermediate and discharge channel feed restrictions. With 3 sizes available from 1050cfm to 1250cfm, the XRX has advanced inlet contours and slabbed throttle shafts with external linkage that enhances flow velocity.

The final piece of the XRX puzzle is the Braswell Fuel Chute Lite dual inlet; dual sight glass windows fuel bowls that control fuel flow regardless of the G-forces. They have the desirable 7/8”-20 AN #6 fittings that make plumbing your fuel system failsafe.

XRX Series carbs are available for gas, methanol and E85. E85 XRXs have a gold corrosion-resistant coating with black anodized billet blocks and billet throttle bodies. They also have special gaskets and GFL diaphragms resistant to ethanol blended fuels.

  • Available in 3 sizes from 1050cfm – 1250cfm
  • Available for gas, methanol and E85 fuels
  • QFT die cast aluminum carb body w/annular boosters
  • ATM 4-circuit, 5-emulsion billet metering blocks
  • Changeable air bleed and fuel channel restrictions
  • Special gold corrosion-resistant coating with special gaskets & GFL diaphragms

Part #: XRXE

Price: $1,222.22
Size CFM:

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