SEMA 2011: ATI Racing’s Latest Transmission Upgrades

ATI Super F Transmission Fluid
In the past, ATI was never a believer in synthetic ATF because it was not available with the Type F additive. To achieve this, ATI teamed up with Joe Gibbs Driven to produce the right fluid for consistent, crisp shifting, and superior heat dissipation.

ATI Racing is by far one of the leaders of the performance automatic transmission world, with racer wins coming at a non stop pace. It even goes further as NMCA Pro Street champion and first to the 5s Chris Rini tests all their Pro Street/Mod spec Powerglide pieces before they are ready for public consumption.

Two of those pieces are ATI’s lightweight gear sprag carrier and input shaft.  Again both of these pieces have been tested in Chris Rini’s Pro Street Camaro and boast a total weight savings of 3.6 pounds – 2.6 pounds from the carrier and 1 pound from the input shaft.  While you might be thinking 3.6 pounds doesn’t sound a lot, understand this is being removed from rotating parts, which has a much greater effect at reducing power loss through the drivetrain.

The next upgrade component is ATI’s 904/727 Torqueflite.  One inherent problem with the Torqueflite transmission is that it wants to break the rear sprag on a hard launch.  ATI’s new rear sprag, which only utilizes one OEM inner element piece, is a totally new design that promotes more contact area then a conventional roller clutch.  It is retained in the case by three 1/4-inch dowels and four 1/4 inch shoulder bolts.  This allows the Torqueflites to easily handle 1000 lb/ft of torque.

About the author

Mark Gearhart

In 1995 Mark started photographing drag races at his once local track, Bradenton Motorsports Park. He became hooked and shot virtually every series at the track until 2007 until he moved to California and began working as a writer for Power Automedia. He was the founding editor for its first online magazines, and transitioned into the role of editorial director role in 2014. Retiring from the company in 2016, Mark continues to expand his career as a car builder, automotive enthusiast, and freelance journalist to provide featured content and technical expertise.
Read My Articles

Hardcore Chevys in your Inbox.

Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE!

Free WordPress Themes
Chevy Hardcore NEWSLETTER - SIGN UP FREE!

We will safeguard your e-mail and only send content you request.

Chevy Hardcore - The #1 Performance Bowtie Online Magazine

We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week.

Chevy Hardcore - The #1 Performance Bowtie Online Magazine

Chevy Hardcore NEWSLETTER - SIGN UP FREE!

We will safeguard your e-mail and only send content you request.

Chevy Hardcore - The #1 Performance Bowtie Online Magazine

Thank you for your subscription.

Subscribe to more FREE Online Magazines!

We think you might like...



Hot Rods & Muscle Cars

Drag Racing

Engine Tech

Chevy Hardcore - The #1 Performance Bowtie Online Magazine

Thank you for your subscription.

Subscribe to more FREE Online Magazines!

We think you might like...

  • Hot Rods & Muscle Cars
  • Drag Racing
  • Engine Tech

Chevy Hardcore - The #1 Performance Bowtie Online Magazine

Thank you for your subscription.

Thank you for your subscription.

Chevy Hardcore - The #1 Performance Bowtie Online Magazine

Thank you for your subscription.

Thank you for your subscription.

Loading