![]() |
|
Welcome to the Australian Ford Forums forum. You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today! If you have any problems with the registration process or your account login, please contact us. Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated. |
|
The Pub For General Automotive Related Talk |
![]() |
|
Thread Tools | Display Modes |
![]() |
#31 | ||
FF.Com.Au Hardcore
Join Date: Apr 2005
Location: Canberra
Posts: 13,372
|
The long and short of it is you want advance timing. Retard is bad mmkay
![]() |
||
![]() |
![]() ![]() |
![]() |
#32 | ||
Shenanigans..............
Join Date: Mar 2007
Location: Footscrazy
Posts: 12,295
|
Octane and I.Q. have a lot in common.
The lower the number, the more retarded it is. |
||
![]() |
![]() ![]() |
![]() |
#33 | ||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,881
|
What you're saying makes literally no sense.
|
||
![]() |
![]() ![]() |
![]() |
#34 | ||
Old drag racer
Join Date: Aug 2013
Location: geelong
Posts: 146
|
Air/fuel is ignited at the top of the piston stroke correct?
So at that point only a very small percentage of the power generated can be imparted to the crankshaft correct? Then as the piston starts it's downward journey it is relying on the ever expanding air/fuel mix to impart power to the piston, is this correct? Then my question is "when does that air/fuel expansion stop?" If that makes no literal sense then so be it. |
||
![]() |
![]() ![]() |
![]() |
#35 | ||
FF.Com.Au Hardcore
Join Date: Feb 2005
Posts: 5,041
|
|
||
![]() |
![]() ![]() |
![]() |
#36 | |||
FF.Com.Au Hardcore
Join Date: Oct 2008
Location: Victoria
Posts: 7,854
|
Quote:
__________________
______________________________ 2015 Territory Titanium RWD Diesel - SOLD 2016 BMW X5 xdrive 30D Msport Seadoo Challenger 210SE 310HP |
|||
![]() |
![]() ![]() |
![]() |
#37 | ||
FF.Com.Au Hardcore
Join Date: Jun 2010
Posts: 700
|
Well mate I watched the video you posted. Yes I like the idea of running hydrogen and I liked the idea of being hybrid.
But using a rotary makes no sense at all. Rotary engines have a high combustion chamber surface area compared to a piston style engine, this creates a high mass of unburnt fuel in the combustion chamber causing these engines to use excessive fuel. ![]() |
||
![]() |
![]() ![]() |
![]() |
#38 | |||
FF.Com.Au Hardcore
Join Date: Jun 2010
Posts: 700
|
Quote:
![]() |
|||
![]() |
![]() ![]() |
![]() |
#39 | |||
FF.Com.Au Hardcore
Join Date: Oct 2008
Location: Victoria
Posts: 7,854
|
Quote:
__________________
______________________________ 2015 Territory Titanium RWD Diesel - SOLD 2016 BMW X5 xdrive 30D Msport Seadoo Challenger 210SE 310HP |
|||
![]() |
![]() ![]() |
![]() |
#40 | ||
Old drag racer
Join Date: Aug 2013
Location: geelong
Posts: 146
|
|
||
![]() |
![]() ![]() |
This user likes this post: |
![]() |
#41 | ||
FF.Com.Au Hardcore
Join Date: Oct 2008
Location: Victoria
Posts: 7,854
|
You mean like bolting a turbo on to to use that exhaust flow..
__________________
______________________________ 2015 Territory Titanium RWD Diesel - SOLD 2016 BMW X5 xdrive 30D Msport Seadoo Challenger 210SE 310HP |
||
![]() |
![]() ![]() |
This user likes this post: |
![]() |
#42 | |||
FF.Com.Au Hardcore
Join Date: Jun 2010
Posts: 700
|
Quote:
I am thinking more HP produced per pound of fuel used. For example- A typical petrol engine would have, let's say a 10:1 compression ratio, that is the fuel mix it compressed 10 times, and the burnt gas expands 10 times. Now explore the idea that the engine has a compression ratio of 10:1, but an expansion ratio of 12:1. In this case the fuel/air mixture is compressed the same amount, it burns the same, does not enter detonation just the same. But now the burnt gases are allowed to expand another 20%, this extra expansion pushes on the piston for another 20%. What we have now is same amount of fuel used, but burnt gas pressure on the piston for a longer period of time. The net result is more power for the same amount of fuel used. ![]() |
|||
![]() |
![]() ![]() |
![]() |
#43 | ||
FF.Com.Au Hardcore
Join Date: Jun 2010
Posts: 700
|
|
||
![]() |
![]() ![]() |