MENU Subscribe to a Magazine
Articles by:
GENERATIONS
  • 2015-Present S550 Mustangs
  • 2005-2014 S197 Mustangs
  • 1994-2004 SN95 Mustangs
  • 1979-1993 Fox Body Mustangs
  • 1974-1978 Mustang
  • 1964-1973 Mustang
  • Trucks
  • Other Vehicles
BRANDS
  • Mustang Monthly
  • Muscle Mustangs & Fast Fords
  • Modified Mustangs & Fords
  • 5.0 Mustang & Super Fords
Categories
Features
  • Featured Vehicles
  • Car Reviews
  • Parts
  • Project Vehicles
  • News & Views
  • Videos
  • Photos
  • Girls
How To
  • Paint & Body
  • Chassis & Suspensions
  • Drivetrain
  • Engine
  • Wheels & Tires
  • Interior & Electrical
  • Tech Q&A
Events
  • Event / Race Coverage
Forums
  • Mustang Monthly
  • Muscle Mustangs & Fast Fords
  • Modified Mustangs & Fords
  • 5.0 Mustang & Super Fords

Subscribe to Print or Digital! Save up to 83%

  • Print Subscriptions
  • Digital Subscriptions
  • Gift Subscriptions
  • Subscriber Services
  • Back Issues
  • Personalized Cover
Muscle Mustangs & Fast Fords Magazine Muscle Mustangs & Fast Fords SUBSCRIBE
Mustang Monthly Magazine Mustang Monthly SUBSCRIBE
Mustang 360 The Ultimate Source for Mustang News and Reviews
  • from the editors of
  •  
  •  
  •  
  •  
  • MENU
  • Mustang 360
  • Subscribe to a Magazine
Home
5.0 Mustang & Super Fords
How To
Engine
Roush Propane Racer - Clean Power
Photo 03

M5lp 1007 02 Z Roush Propane Racer Development Engine

Back to Article View Gallery
Share this photo
Back to Article
M5lp 1007 02 Z Roush Propane Racer Development Engine
3 of 12
The development engine for the Roush propane racer is a stock-displacement 5.4-liter Ford GT supercar long-block, modified for wet-sump oiling and bumped to 12.5:1 compression. Its internal specs are otherwise unimportant because, in race form, the project will run a larger displacement variant, as detailed a bit further on. When plumbed for gasoline, it produced around 635 hp on C14 fuel. With the liquid-propane fuel rails and injectors in place, power was about 625 hp even, though for baseline testing purposes, about 3 degrees less ignition timing was used.

More Photo Galleries

  • How to Calculate Compression Ratio
  • Street Manners, Viscous Throttle: Vortech’s TwinCharged EcoBoost Mustang
  • Finally! A Performance Cylinder Head for Ford Six-Cylinders
  • Week to Wicked 2013 Ford Mustang Build Presented by Continental Tire
  • Recondition a Mustang’s ignition system with MSD
  • We remedy oil pump reliability in our Continental Tire Week to Wicked 2013 Mustang GT

Connect With Us

Stay informed with our Newsletter
Sign Up Now

Most Popular

Related Articles

Girls

View More Girls

News

See All News

Sponsored links

Mustang 360
  • Facebook
  • Twitter
  • Google+
  • Instagram
  • RSS
Subscribe to a Magazine
The Enthusiast Network

© 2018 Mustang 360 Network
Extreme Ventures, LLC dba TEN: A Discovery Communications Company.
All rights reserved.

Company
  • Contact Us
  • Our Team
  • Careers
  • Mustang 360
  • Sitemap
  • RSS Feeds
  • Terms of Use
  • Permissions/Reprints
  • Privacy Policy
  • About Ads
  • Subscriber Services
Sections
  • Forums
  • Features
  • How To
  • Videos
  • Photos
Brands
  • Mustang Monthly
  • Muscle Mustangs & Fast Fords
  • Modified Mustangs & Fords
  • 5.0 Mustang & Super Fords
Generations:
  • 2015-Present S550
  • 2005-2014 S197
  • 1994-2004 SN95
  • 1979-1993 Fox Body
  • 1974-1978
  • 1964-1973
  • Ford Trucks
  • Other Ford Cars