ATM’s Gas XRSB Series are our most versatile "street/strip" race carburetors with a 4150-style flange and "with vacuum ports". They are the perfect blend of a precision die cast aluminum ATM ™ carb body with ATM 2-circuit, 4-emulsion billet metering blocks. F uel is managed by ATM™ all aluminum dual inlet, dual sight-window fuel bowls and the billet aluminum throttle-bodies have vacuum tubes for vacuum advance and PVC hookups. They are available in 5 sizes from 650cfm to 1050cfm (4150 flange) applications.

Gas XRSBs standard finish is silver polished with black anodized billet metering blocks and throttle bodies.

XRSB

X = cause it's cool

R = Race

S = Street

B = Billet

ATM Innovation’s Gas XRSB "street/strip" race carburetor is a step up from its XRSC series. While it shares many of the same features with the XRSC, the XRSB is intended for racers that frequently take apart their carburetors for precise tuning changes – the billet metering blocks and billet throttle bodies add another level of durability over die cast components. They also offer more race details like “slabbed” throttle shafts that promote smoother flow and less turbulence.

ATM’s XRSB carbs use the ATM™ die cast aluminum carb body that has a fully contoured high-flow air horn and externally changeable idle- and high-speed air bleeds. When combined with ATM’s 2-circuit, 4-emulsion billet metering blocks with 4-corner idle adjustment, the XRSB becomes one of the most “tuneable” race carbs on the market. These billet metering blocks also have changeable idle fuel and power valve channel restrictions.

Dynamic fuel handling is important in hard-cornering racecars and ATM’s™ all aluminum dual inlet, dual sight-window fuel bowls were designed exactly for this purpose. They are fitted with 7/8”-20 inverted flare fittings for leak-resistant connections.

They are available in 5 sizes from 650-1050 CFM (4150 style).

• ATM™ die cast aluminum main body w/changeable idle and high-speed air bleeds
• Billet 2-circuit, 4-emulsion metering blocks add durability for frequent calibration changes
• Changeable idle and high-speed air bleeds along with changeable idle fuel feed and power valve channel restrictions allow a precision fuel curve for your specific application
• 4-corner idle adjustment
• ATM™ all aluminum dual inlet/dual sight-window fuel bowls
• Billet throttle body with slabbed throttle shafts
• 4 Vacuum tubes in throttle body (2 are 3/8" full vacuum, 2 are 1/4", 1 full, 1 timed)

Dyno Results

Check out our dyno results on one of our 572 engines that we were testing. This particular build ideally should have had a 950cfm carb on it but we wanted to test to see the range limits on the 850 cfm carb. For engine build in this hp range we strongly suggest using our ATM 950cfm.

Every engine we have tested have showed great HP and TQ numbers with the ATM carbs. We will soon have more various dyno results showing the hp numbers on all the ATM carbs.

Who is ATM INNOVATION?

ATM Innovation is a new high performance company backed by one of the most experienced teams in race carburetor technology. It’s true “that the apple doesn’t fall far from the tree” and CEO Angela Benoit Neely has spent years following in her father’s (Marvin Benoit [founder of Quick Fuel Technology™]) footsteps. She is launching ATM Innovation with years of experience at QFT™ under her belt.

Angela’s mission statement is boldly stated on the banner of this website. It’s the “NEXT Generation In Fuel Systems” which means that ATM is innovating and re-inventing race carburetors and throttle stops as we now know them. A good example is its new Double D™ throttle stops that not only restrict horsepower when applied, but actually increase horsepower when they are fully open.

Her motto is “we build parts for racers by racers”. Performance, quality and customer service is the foundation for ATM Innovation. And Angela and the ATM Team are already delivering on these promises with a World Championship in one of the toughest divisions in Lucas Oil Drag Racing – Super Gas.

Angela proudly reflects on ATM and what they’ve accomplished so far, “I will forever be indebted to my father and family for the education and opportunities they have provided. The new ATM Team is truly the Next Generation, building state-of-the-art, high performance and racing fuel systems”.

Angela Neely
CEO - ATM

Product Information