Subaru 2.0L

wouldn't that be a nice starting point for an aircraft engine?
http://jalopnik.com/photogallery/sub...sel/1003879266
A flat torque curve until 2500 RPM and about 90HP, seems perfect for a
direct drive. One of the questions may be if the prop/hub will suffer by the
string power pulses of the diesel? Wonder what the stripped-down engine
weight is.

sorry, 90 KW makes 120 HP, cool


"oilsardine" schrieb im Newsbeitrag
...
wouldn't that be a nice starting point for an aircraft engine?
http://jalopnik.com/photogallery/sub...sel/1003879266
A flat torque curve until 2500 RPM and about 90HP, seems perfect for a
direct drive. One of the questions may be if the prop/hub will suffer by
the string power pulses of the diesel? Wonder what the stripped-down
engine weight is.

oilsardine wrote:

wouldn't that be a nice starting point for an aircraft engine?
http://jalopnik.com/photogallery/sub...sel/1003879266
A flat torque curve until 2500 RPM and about 90HP, seems perfect for a
direct drive. One of the questions may be if the prop/hub will suffer
by the string power pulses of the diesel? Wonder what the
stripped-down engine weight is.


Don't reject PSRU, You will gain HP/lbs ratio. This engine is able to
deliver 160-180HP with more fuel (and torque) in the 3000-3500 rpm
range.

The limitation factor is the torque (350Nm).

--
Volem rien foutre al païs!
Philippe Vessaire Ò¿Ó¬
** Posted from http://www.teranews.com **

"Philippe" schrieb im Newsbeitrag
news:2811795.v4vjahsMj3@GastonCoute...
oilsardine wrote:

Don't reject PSRU, You will gain HP/lbs ratio. This engine is able to
deliver 160-180HP with more fuel (and torque) in the 3000-3500 rpm
range.

The limitation factor is the torque (350Nm).

but what if I only can take 120HP (Sonex) anyway? Torque will decrease from
2500 onwards, see the chart. PSRU is completely unnecessary for this
application.

oilsardine wrote:


but what if I only can take 120HP (Sonex) anyway? Torque will decrease
from 2500 onwards, see the chart. PSRU is completely unnecessary for
this application.

Yes, but heavy for a sonex... anyway, it may work.

I think we may do a lot with this engine. From 120HP without PSRU till
180HP with PSRU.

about torque and power: diesel engines are limited by torque, not by
RPM. It is possible to keep high torque (maxi torque) for higher rpm
than automotive engine. It's the way used by Thielert on small mercedes
diesel engine. The power jump from 90HP to 135HP.

Keep the torque at 350Nm till 3500 rpm and you got more great power.

I think it is possible to have a very simple electronic engine control
based on rpm, turbo pressure and one sensor per cylinder. You kneed to
shut off the EGR system too.

by
--
Volem rien foutre al païs!
Philippe Vessaire Ò¿Ó¬
** Posted from http://www.teranews.com **