The new Stihl ms500i

[Ty Korrigan]

On 08/10/2017 at 20:23, Steve Bullman said:

Not sure i'd want a wankel for a saw

When we've got them for groundies...

    Ty

[Khriss]

TY  ..wankel engines struggled with seal problems - tho Mazda made them work - not rely sensible for a sub 1000squid saw K

[Steve Bullman]

Something more official 

 

http://www.stihl.co.uk/the-world-first-stihl-injection-electronically-controlled-fuel-injection.aspx

[arbogrunt]

Does the 'i' stand for 'it's gonna play up'?

[Ty Korrigan]

On 07/11/2017 at 20:29, arbogrunt said:

Does the 'i' stand for 'it's gonna play up'?

No, it stands for 'infernal'...

   Ty

[tony_t3d]

best bet is youtube nath.... i wouldn't be able to explain it!!

Most older petrol engines use port fuel injection wich is less precise since it just sprays fuel into the intake port, which then mixes with the air in the port and rushes into the combustion chamber when the intake valve opens.

Whereas the direct injection is injected straight into the combustion chamber at precisely the right time and therefore creating a much more efficient bang in the combustion chamber. Creating more power.

Basically it's better....

[openspaceman]

33 minutes ago, tony_t3d said:

 

 

Most older petrol engines use port fuel injection wich is less precise since it just sprays fuel into the intake port, which then mixes with the air in the port and rushes into the combustion chamber when the intake valve opens.

Whereas the direct injection is injected straight into the combustion chamber at precisely the right time and therefore creating a much more efficient bang in the combustion chamber. Creating more power.

Basically it's better....

'cept this injects into the crankcase. still better than carb but not direct

[Mark_Skyland]

Its the way forward for two strokes. Well, its the only way forward from what Ive seen.

 

 

 

 

[Guest]

I was in Camberley this week taking a look at the ms500i. Unfortunately no photos allowed. But I’m back there on the 14th feb to find out about direct supply. I’ll get some pics to post then. Nice bit of kit though. 

[spudulike]

On ‎11‎/‎11‎/‎2017 at 22:53, openspaceman said:

'cept this injects into the crankcase. still better than carb but not direct

Like a reed valve then?