IHRA

WDRA and IHRA Unite to Shape The Future of Sportsm...
IHRA Membership Renewals Important Update
Byrd named IHRA VP of Strategic Partnerships
WDRA and IHRA Unite to Shape The Future of Sportsm...

WDRA and IHRA Unite to Shape The Future of Sportsm...

2/6/2025 -
NORWALK, Ohio — In a groundbreaking move for the world of drag racing, the World Drag Racing Alliance (WDRA) and the International Hot Rod Associatio
IHRA Membership Renewals Important Update

IHRA Membership Renewals Important Update

2/4/2025 -
Membership Renewals – Important Update Attention IHRA members and competitors: Our online membership portal has been temporarily unavailable during th
Byrd named IHRA VP of Strategic Partnerships

Byrd named IHRA VP of Strategic Partnerships

2/2/2025 -
HAMILTON, Ohio — The International Hot Rod Association (IHRA) has named Christian Byrd the Vice President of Strategic Partnerships. The 47-year-old B

Latest News

WDRA and IHRA Unite to Shape The Future of Sportsman Racing

2/6/2025
NORWALK, Ohio — In a groundbreaking move for the world of drag racing, the World Drag Racing Alliance (WDRA) and the International Hot Rod Association (IHRA) have announced their first-ever...more

IHRA Membership Renewals Important Update

2/4/2025
Membership Renewals – Important Update Attention IHRA members and competitors: Our online membership portal has been temporarily unavailable during the recent ownership transition. We appreciate...more

Byrd named IHRA VP of Strategic Partnerships

2/2/2025
HAMILTON, Ohio — The International Hot Rod Association (IHRA) has named Christian Byrd the Vice President of Strategic Partnerships. The 47-year-old Byrd has served as General Manager for zMax...more

Syers Remembered as an Inspiration, Champion Racer

1/30/2025
The International Hot Rod Association remembers Teri Syers whose determination to be a champion despite battling cancer proved to be an inspiration for all. Syers died Tuesday. She was 52. Syers won...more

IHRA Officials Attend Xtreme Raceway Park Banquet

1/27/2025
FERRIS, Texas — International Hot Rod Association officials, led by IHRA Owner Darryl Cuttell and Vice President of Racing Operations Alan Reinhart, were on hand at Xtreme Raceway Park’s annual...more
Upgrade Your Race Car with These Summit Racing Brand Parts
50
5/22/2024

5/22/2024

IHRA Events


Upgrade Your Race Car with These Summit Racing Brand Parts

Even with race season under way, it’s never too late to update your IHRA race car. Summit Racing Equipment offers these parts to help you do just that.

Summit Racing™ Universal Harness Bar
The Summit Racing™ Universal Harness Bar is designed for use with a roll bar-style racing harness system in cars that don’t have or require a roll cage. The bar has a telescoping center section with one inner and two outer steel tubes. They bolt to mounts that attach to the car’s B-pillars with the included 5/16-inch RivNuts. The harness bar should be installed so it sits between 0 and 10 degrees below the shoulder for optimum harness angle.The bar is a bolt-in, but we recommend welding the attachment points for maximum strength. The instructions will show you how the bar installs. The Summit Racing Universal Harness Bar can be adjusted from 48 3/8 to 59 3/8 inches long.

Harness Bar

Summit Racing™ Race Series Carburetor
Fully machined and hand assembled in the USA, the Summit Racing™ Race Series Carburetor is ideal for drag racing and street/strip applications. The 750 CFM four-barrel carburetor has a square bore mounting flange to fit most high-performance and racing intake manifolds. Features include:

• Mechanical secondaries
• Adjustable screw-in air bleeds
• High-performance down-leg boosters
• Secondary adjustable idle screw
• Fuel bowls with nitrophyl floats and Jet extensions for improved WOT performance
• Four-corner idle circuit
• Smooth milled choke

Carb

Summit Racing™ Pro BBC 4-7 Swap Hydraulic Roller Camshafts
Made in the USA from billet bearing steel and finished on Landis grinders, Summit Racing™ Pro BBC 4-7 Swap Hydraulic Roller Camshafts have a 4/7 firing order (1-8-7-3-6-5-4-2). This helps reduce vibration and bearing wear and improves combustion chamber cooling for reduced detonation. Changing the cylinder pairing from 5/7 to 4/2 can help you pick up more power in the midrange and a small amount up top with no other changes.

Pro BBC 4-7 Swap Hydraulic Roller Camshafts have wide lobe separations and more advance ground in. Although the advance may seem larger than normal, it's designed for maximum power under the curve. Just install your cam straight up and you’re good to go.

We designed the camshafts around PAC Racing valve springs similar to the spring packs used in popular big block Chevy cylinder heads. A melonized or composite distributor gear and billet cam-compatible mechanical fuel pump pushrod are required.

Camshaft

Summit Racing Equipment
www.summitracing.com
1-800-230-3030


Submitted By: Amanda Wesler

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