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1989 Ford Mustang LX Hatch 5.0L Hits The Dyno!

Created by Jay Walling
Date Created: 7/28/2022
Last Updated: 12/9/2022

LMR team member Josh Williams just picked up his new to him 1989 LX hatchback 5.0L and is loving every minute of owning it. He has a few mods to the car so far, so let's see what it does on the rollers today!

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Viewing this install and using the information shared is subject to the terms set forth here - View the LMR Install Instructions Disclaimer.

For this dyno article, we will cover our employee Josh William's 1989 LX Hatchback. This LX Hatch is a work in progress and has a list of parts he plans after this baseline dyno. Check out below for more pics, dyno technical data, and the dyno results!
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  • 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno! - 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno!
  • 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno! - 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno!
  • 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno! - 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno!
  • 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno! - 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno!

Dyno Technical Data

  • SVE Rear wheels are 17x10 w/ 275/40/17 Nitto NT555 G2 Tires
  • T5 5-Speed Transmission So Dyno Pull Will Be Made In 4th Gear (1:1 ratio)
  • 3.73 Rear-End Gear
  • Aluminum One-Piece Driveshaft
  • BBK long tube headers
  • Stock upper and lower intake
  • 93 Octane Fuel
  • Custom off-road X pipe and Pypes M80 mufflers
  • SVE 70mm throttle body
  • Factory airbox
  • OEM Ford 5.0L Longblock

Dyno Results

1989 Ford Mustang LX Hatch 5.0L Hits The Dyno! - 1989 Ford Mustang LX Hatch 5.0L Hits The Dyno!

Here are the results! Josh's LX made 204 horsepower at 4600 RPM and 284 lb/ft of torque at 3500 RPM. Josh wanted a good baseline for his future plans on his ride. He is possibly planning a heads/cam/intake upgrade or even a bit of boost down the road. Make sure to follow our YouTube channel for any updates! As always, keep a lookout for more dyno articles and videos right here at LMR.com.


About the Video

1989 Fox Body Mustang LX 5.0L Hatch Dyno!

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Published on 2022-04-14
Find out how much power this 1989 Ford Mustang LX 5.0 Hatch makes!
Thumbnail image of the author of this article, Jay Walling.

About the Author

Jay has written content for Late Model Restoration for over 10 years, producing over 120 articles. Jay has an extensive 25-plus-year background in automotive and is a certified Ford Technician. Read more...