One-on-One with Jim Dunn Racing's Johnna Dunn - Engine Builder Magazine

One-on-One with Jim Dunn Racing’s Johnna Dunn

After speaking with Kaylynn Simmons a couple years ago, we found out there are only a few women who work on the pit crews of the NHRA teams. One of those few other women is Johnna Dunn, a clutch specialist for Jim Dunn Racing. It’s a family affair for Johnna, who works alongside many family members, including her grandfather and team owner Jim Dunn. She has aspirations to do more driving and learn more about the drag cars she works on.

You May Also Like

Reviewing Cometic Gasket’s MLX Head Gaskets

We got a set of Cometic Gasket’s MLX head gaskets for a small block Ford build we’re doing. Our head gaskets are a standard layout Ford head gasket with a .040″-.044″ thickness and designed to fit a 4.125″ bore. The difference between an MLS and Cometic’s MLX gasket, which stands for Multi-Layer-Xtreme, is an extra

We got a set of Cometic Gasket's MLX head gaskets for a small block Ford build we're doing. Our head gaskets are a standard layout Ford head gasket with a .040"-.044" thickness and designed to fit a 4.125" bore. The difference between an MLS and Cometic’s MLX gasket, which stands for Multi-Layer-Xtreme, is an extra 'stopper' fold-over layer that provides a torque limiting surface and prevents yielding of the combustion seal. Check out the rest of the review.

Dream Engine Giveaway Ep. 4 – Bottom End Assembly

Now that Chris has checked all our specs, we begin to assemble the bottom end components of our small block Ford such as the rotating assembly, main and rod bearings and the camshaft. Next episode, we will be getting into our cylinder head assembly and more of the valvetrain components. Related Articles – How Heat

How Heat Affects Clearances in a Block

Steve Morris Engines has a Lamborghini engine block in the shop and Steve demonstrates how heat can affect the clearances. Related Articles – Chris Patterson’s Triple-Turbo 6.7L Cummins Engine – Installing Flanged Sleeves in a Cummins Block – Check Your Camshaft Ramp Rates

Doc Baker’s Supercharged 500 cid Billet Hemi Engine

Doc Baker is an engine builder and racer who does things his own way. We were excited to learn more about his 1971 Dodge Demon with a supercharged 500 cid billet Hemi engine in it, and caught up with Doc at the 2022 Builder’s Brawl race event at World Wide Technology Raceway. Check it out!

One-on-One with Katie Coleman of LinCo Diesel Performance

We got to visit LinCo Diesel Performance in Troy, MO, just outside St. Louis, back in early 2022. It was then that we were introduced to Katie Coleman, a cylinder head specialist at the shop, but an industry vet with 15+ years of experience. She was extremely sought after when shops found out she was

Other Posts

Vortech Supercharged 572 cid Big Block Chevy Engine

When David Pearson of Little Evil Racing shows up at the track with his Pro 275 Foxbody Mustang, people fear him, and for good reason. David has set numerous 275 drag radial world records, and with a Vortech supercharged 572 cid big block Chevy in this Mustang, another record may fall!

Vance & Hines Shakes Up NHRA PSM Team

Vance & Hines today announced the members of the Vance & Hines/Mission/Suzuki NHRA ProStock Motorcycle (PSM) Team, which will feature four-time champion Eddie Krawiec and 29-year-old Gaige Herrera competing for the 2023 championship. The riders will be aboard Suzuki Hayabusa motorcycles. Six-time champion Andrew Hines returns as crew chief in 2023. Related Articles – MAHLE

Joe Morrison Teams With Herzhauser for Switch From Top Fuel to Funny Car in 2023

Joe Morrison, who gained a loyal following over his first three seasons in Top Fuel, will switch to the nitro Funny Car class in 2023, driving for East Coast-based owner Mark Herzhauser. Related Articles – Edelbrock’s Smitty Smith Dies at Age 70 – PerTronix Performance Brands Promotes Jeff Stacy – NASCAR Announces 2023 Hall of

Supercharged 500 cid Billet Hemi Engine

Doc Baker is a racer and builder who does things his own way. A perfect example of his work can be seen under the hood of his 1971 Dodge Demon – this supercharged 500 cubic inch billet Hemi engine. Check out what went into the build!