3 ms·

Are you sure this is a direct injection? I'm seeing the injector directly behind the inlet valves which would make it multi point.

by xd 13y ago

sitharus 13y ago
I just took a close look at it, and I think you're right. It's not the easiest thing to see due to the wireframe, but with a second look it does appear that the injectors are just behind the valve. So yes, it's multi-point injection, rather than direct injection which is the new hotness for gasoline. Formula 1 will allow it from next year with the new V6 formula!
- techdmn 13y ago
  V6 formula!?!? Validating my decision several years ago to quit following F1. ;-)
  - arjunnarayan 13y ago
    For me it was when they kept changing the rules (in 2005) just to ensure that Schumacher lost. Haven't looked back since. I hear they can't even refuel these days (the horror!)
  - sitharus 13y ago
    V6 turbo with energy recovery on the turbo itself. They're also allowed to use that energy to re-spool the turbo to eliminate lag. They've also hugely bumped the KERS and built it in to the throttle map - no more button for it. I can't remember the exact figures, but it means that they have so much torque when they go full throttle it'll spin the wheels at almost any speed. I'm looking forward to them slipping around the corners again. Also to engines blowing up, since that doesn't happen much due to 5 year old engine designs.
- xd 13y ago
  I'm currently rebuilding a 2.0 TDCI engine .. an interesting feature is the crowns of the pistons. With direct injection the fuel is aimed at specifically shaped depressions in the piston crowns which causes vortices between the atomised fuel and air improving the mix for a cleaner burn.
sliverstorm 13y ago
Which is actually very accurate. Modern injectors are positioned to spray fuel on the back of the valve. This helps cool the valve which protects them from heat-related damage, and also helps vaporize the fuel.

Are you sure this is a direct injection? I'm seeing the injector directly behind the inlet valves which would make it multi point.

by xd 13y ago

Are you sure this is a direct injection? I'm seeing the injector directly behind the inlet valves which would make it multi point.

sitharus 13y ago

I just took a close look at it, and I think you're right. It's not the easiest thing to see due to the wireframe, but with a second look it does appear that the injectors are just behind the valve. So yes, it's multi-point injection, rather than direct injection which is the new hotness for gasoline. Formula 1 will allow it from next year with the new V6 formula!

techdmn 13y ago
V6 formula!?!? Validating my decision several years ago to quit following F1. ;-)
- arjunnarayan 13y ago
  For me it was when they kept changing the rules (in 2005) just to ensure that Schumacher lost. Haven't looked back since. I hear they can't even refuel these days (the horror!)
- sitharus 13y ago
  V6 turbo with energy recovery on the turbo itself. They're also allowed to use that energy to re-spool the turbo to eliminate lag. They've also hugely bumped the KERS and built it in to the throttle map - no more button for it. I can't remember the exact figures, but it means that they have so much torque when they go full throttle it'll spin the wheels at almost any speed. I'm looking forward to them slipping around the corners again. Also to engines blowing up, since that doesn't happen much due to 5 year old engine designs.
xd 13y ago
I'm currently rebuilding a 2.0 TDCI engine .. an interesting feature is the crowns of the pistons. With direct injection the fuel is aimed at specifically shaped depressions in the piston crowns which causes vortices between the atomised fuel and air improving the mix for a cleaner burn.

sliverstorm 13y ago

Which is actually very accurate. Modern injectors are positioned to spray fuel on the back of the valve. This helps cool the valve which protects them from heat-related damage, and also helps vaporize the fuel.