Suzuki H engine

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Suzuki H engine
Configuration60° DOHC V6
SuccessorGM HFV6

The H family is a line of 60° V6 automobile engines from Suzuki. Ranging in displacement from 2.0 L to 2.7 L, the H family was a modern all-aluminum engine with dual overhead cams, 24 valves, and direct fuel injection. It was co-developed with Mazda and Toyota, which used a similar design in their 2.0 L KF V6 and the Toyota VZ engine. The H family was introduced in 1994 with the H20, but Suzuki, Toyota and Mazda's designs diverged greatly with the former increasing displacement and the latter experimenting with alternative induction technologies and smaller engine sizes.


The H20A displaces 2.0 L (1,998 cc); bore is 78.0 mm (3.1 in) and stroke is 69.7 mm (2.7 in). With a 9.5:1 compression ratio, it produces 107 kW (136 PS) at 6,500 rpm and 172 N·m (127 lb·ft) at 4,000 rpm.[1]



The H25A displaces 2.5 L (2,495 cc); bore is 84.0 mm (3.3 in) and stroke is 75.0 mm (3 in) and produced 124 kW (169 PS) when first introduced.[2] With a 9.5:1 compression ratio, it produced 119 kW (162 PS) at 6,500 rpm and 203 N·m (163 lb·ft) at 3,500 rpm on its introduction, with a 2001 update increasing this to 116 kW (158 PS) and 213 N·m (157 lb·ft).[3] It is also being considered and used for various ultra-light aircraft propulsion systems.



The H27A is a modern version of the H25A, a reliable displacing 2.7 L (2,736 cc, coming from an 88 mm bore and 75 mm stroke). Added VVT in 2006. The engine is tuned to achieve most of its torque at low revs at the expense of raw power at high revs, making the engine very responsive in day-to-day driving. It produces 138 kW (188 PS) at 5,350 rpm and 250 N·m (184 lb·ft) at 3,300 rpm.[3]


See also[edit]


  1. ^ Büschi, Hans-Ulrich, ed. (March 6, 1997). Katalog der Automobil Revue 1997 (in German and French). 92. Berne, Switzerland: Hallwag AG. p. 516. ISBN 3-444-10479-0.
  2. ^ Automobil Revue 1997, p. 518
  3. ^ a b Stachurski, Daniel (January 31, 2005). "Silniki Suzuki" [Suzuki Engines] (in Polish). Archived from the original on 2006-05-26. Retrieved 2011-04-19.