View Single Post
#26: 10-11-2012, 12:22 PM
 
 GTEASER
GTEASER's Avatar
Title: Teaser of the G
Rank: Donating Member
Location: SF Bay Area, CA
Car: 2012 Legacy GT and 1992 Legacy SS
Posts: 10,882
iTrader: (12)
Send a private message to GTEASER Find all posts by GTEASER Reply With Quote
From Wiki:

Subaru FA engine
(Japanese: Subaru FA engine) The FA was developed from the FB engine, however, efforts to reduce weight while maintaining durability were the main goals of the FA engine. While the FA and FB engine share a common platform, the FA shares very little in dedicated parts with the FB engine, with a different block, head, connecting rods, and pistons. The FA also features direct injection (from Toyota) and Subaru AVCS variable valve timing system. It is used in the Subaru BRZ, and is identified by a Toyota engine family code known as the 4U-GSE, which is installed in the Toyota 86 and the Scion FR-S.[6] According to Subaru, 0W-20 oil is recommended.
  • Bore: 86 mm
  • Stroke: 86 mm
  • Displacement: 1,998 cc
  • Compression Ratio: 12.5:1
  • Power: 200 PS (147 kW; 197 hp) at 7,000 RPM
  • Torque: 20.9 kgm (205 Nm; 151 lbft) at 6,400-6,600 RPM
A version with direct fuel injection and twin-scroll turbocharger was introduced in 2012 to the Japanese market for the Legacy GT DIT (direct injection turbo) sedan, and the Legacy GT DIT Touring Wagon.
  • Bore: 86 mm
  • Stroke: 86 mm
  • Displacement: 1,998 cc
  • Compression Ratio: 10.6:1
  • Power: 300 PS (221 kW; 296 hp) at 5,600 RPM
  • Torque: 40.8 kgm (400 Nm; 295 lbft) at 2,000-4,800 RPM
[edit] Subaru FB engine

(Japanese: Subaru FB engine) New generation boxer engine announced on 23 September 2010.[7] The Subaru FB engine is entirely new as of 2010. Subaru aims to reduce emissions and improve fuel economy. The key is to increase and broaden torque output. Subaru increases the stroke but decreased the bore.
The FB has an all new block and head. It has DOHC, with intake and exhaust variable valve timing (AVCS - Active Valve Control System), and a timing chain that replaced the timing belt. Moving to chain-driven cams is said to allow the valves to be placed at a narrower angle to each other and shrink the bore of cylinder from 99.5 mm to 94. It results in less unburned fuel during cold starts, thereby reducing emissions. Subaru is able to maintain the exterior dimension substantially unchanged by asymmetrical connecting rods like those in EZ36. The FB is only marginally heavier. Car and Driver is told direct injection will be added soon. Subaru claims a 28-percent reduction in friction losses, mainly due to lighter pistons and connecting rods.[8][9] The FB has a 10% increase in gas mileage with the power coming on sooner and the torque band being broader.
  • FB16: 1,600 cc, DOHC, 78.8 mm bore x 82 mm stroke, 10.5:1 Compression Ratio,
Rated at: 84 kW (115PS) @5,600 rpm, 150 Nm (15.3 kgm) @4,000 rpm in (2012+ EUDM Impreza XV 1.6i)
  • FB20: 1,995 cc, DOHC, 84 mm bore x 90 mm stroke, 10.5:1 Compression Ratio,
Rated at: 109 kW (148PS) @6,000 rpm, 196 Nm (20 kgm) @4,200 rpm in (2011+ JDM Subaru Forester),[10]Rated at: 145 hp, 145 lbft (2012+ Subaru Impreza)
  • FB25: 2,498 cc, DOHC, 94 mm bore x 90 mm stroke, 10.5:1 Compression Ratio.
Rated at: 170 hp, 174 lbft @ 4,100 rpm (2011+ North American Subaru Forester[11])