Going along with sreid's prediction, it's important to
realize that current gasoline fueled engines have higher
potential that what we see in production. Here's a quote
from David Vizard on the subject, when reading remember
this was 30 years ago:
"In 1975 I was the lead engineer on an economy...
As Peter7307 clearly stated earlier, the future of the
automobile is in the hands of our leaders.
"The most difficult item to pinpoint is the direction of
political policy which is also one of the most influential
in this arena."
SomptingGuy,
When looking at the facts, it's easy to consider conspiracy.
VW can no longer sell the 46 MPG turbo Jetta in the US
because it does not meet emissions standards.
On the other hand I cannot purchase Honda's ultra-green
Accord that emits near-zero pollution. Under terms of the...
Greg, Why do you consider H2 a joke fuel?
BMW has completed a 100 car restricted production run of the
powerful BMW Hydrogen 7 model. With a 260 HP dual fuel V12
engine and top speed of 143 MP, the driving range is 125 miles
on H2 and 300 miles on gasoline...
According to BMW the future of the automobile lies in
hydrogen power.
http://www.bmwworld.com/hydrogen/stragegy.htm
"The hydrogen age is here. Mankind's search for increasingly
environmentally-friendly individual mobility and
independence from fossil sources of energy has led to a...
Here's a link to some testing done for Briggs & Stratton on
a flat head modification. The results show substantial
reductions in BSFC.
http://somender-singh.com/content/view/12/37/
As opposed to increasing spark energy, consider adding
additional kinetic energy into the air fuel charge at ignition
and during the early stages of combustion. It's proven that
increased turbulence intensity reduces cycle to cycle
variation, reduces burn duration and establishes a more...
Excellent post mattsooty, can you tell us more about altering
the three combustion phase percentages?
Here’s a writing on the effects of turbulence on combustion in
two strokes, instructing.
http://home.earthlink.net/~scloughn/id21.html
"...As the piston displaces fluid during the up stoke...
"1. If reversion is really coming from cam selection, does
it make sense that 213 duration should show a significant difference?"
I believe that something other than camshaft selection is the
primary cause of the reversion. If it were the cause I think
you would have determined it with the...
I recently read a very good Paper on the subject of intake
bellmouth shape and it's impact on cylinder filling and
spit back by Prof. G. P. Blair.
http://www.profblairandassociates.com/pdfs/RET_Bellmouth_Sept.pdf
Two more papers on intake sizing...
Looking at the cost savings at the pump exclusively may
not show the complete benefit. If fuel consumption is
reduced by 100% then we should realize similar reductions
in HC and CO emissions, more valuable that the personal
savings.
In addition supply and demand of fuel should drive fuel
cost...
Yes Pat two carbs would eliminate that possibility, it would
then be like tuning a single cylinder engine.
I read this tonight on harley tech talk:
If you've ever watched a bike on a dyno with the air cleaner
off, especially one with a healthy cam, there is a nice big
cloud of fuel/air...
I keep coming back to combustion problems creating high cylinder
pressure during overlap but everything you describe relates
to good combustion efficiency. Have you giving much thought
to what phase each cylinder is in during the overlap period
of opposite cylinder?
Here's a link to...
turbocohen
A quick search finds this: "Indolene is used extensively as a
standard certification fuel in both the automotive and oil
industries" Is there something about the chemical composition
of indoline that helps to control radical formations?
