Pintle-regulated Venturi Air/Fuel Induction for Fuel Economy and Performance

Fuel Economy Comparison1

Test Loop

Speed

Conventional Manifold

PRV Manifold

Percent Improvement

City

Variable

38 mpg2

42 mpg2

11%

Highway

65 mph

43 mpg3

53 mpg4

23%

Highway

65 mph

43 mpg3

58 mpg5

35%

 

 

 

 

Notes

  1. No mechanical changes between tests other than the induction system and associated fuel map. Highway tests conducted on a closed-circuit test loop between Denver, CO and Brush, CO at 65 mph -- the same test used since June 2007. Honda D15B engine and low rolling resistance Sumitomo tires.
  2. Average of seven 200-mile test loops. Throttle control improvement is expected to increase fuel economy and future designs.
  3. Air/fuel ratio is stoichiometric, closed-loop control O2 sensor feedback control using a stock P08 electronic control unit. Test repeated three times with a range of 42 to 44 miles per gallon in ideal fair weather conditions with light wind.
  4. Air/fuel ratio is stoichiometric, closed-loop control O2 sensor feedback control using a AEM electronic control unit.
  5. Air/fuel ratio is 16.8, closed-loop control O2 sensor feedback control using a AEM electronic control unit.
  6. Explanation for the improved fuel economy can be found by clicking here.
  7. A simple analogy comparing engine and human respiration can be found here.

 

PRV PERFORMANCE, 18990 W 54th Place, Golden, CO  80403 info@prvperformance.com    303-887-2032