"Keen "to replace V6 with inline Gas engines
I have been reading how European manufacturers are now urgently wanting to dump V6 engines. One Automotive commentator said they " were a mistake" .Jaguars new Diesel and Gas engines will be inline si...
Forum Discussion
OEMs produce product for the masses...and the masses do NOT have the
level of knowledge that GearHead/BoyRacers do...nor the experience of
fine tuning them to their own liking...generally speaking... :B
Must say though that the OEMs have and are pushing in BoyRacer stuff
all the time...but...not all BoyRacer nor track stuff is a good idea for
street usage
You guys are into the laws of physics both on Vee vs In-line and fueling
of our ICEs
There are always 'give and take' or 'compromises' between the OEMs and
buyers. Toss in the government agencies
They all have their weak and strong points...
Carbs fuel up stream of the valves...to have the manifold fulled with
an air/fuel mixture. But that has higher potential for ignition in the
manifold and pre-ignition/knock/etc...dependent on a host of attributes.
Homogeneous mixture is a good way to describe this intake charge
Injection can be very similar to carbs (TBI, throttle body injection)
to port (injection at the intake valve area) to direct injection
(injection inside the CC). Gone today is manifold air/fuel...just air
Not as even a blend as a carb would provide
The problem with injection is the droplet size and any vaporization
that is hoped for...why the PSI's of today's system...because the orifice's
are getting smaller and smaller in order to atomize (droplets) to as
small a size as possible. There will be rich zones and lean zones to
even just air zones
That then gets into the shape of the intake system, the CC shape (why
BoyRacers will have their CC's shaped, polished, matched & flowed, etc)
Hint...this relates directly to the Vee vs in-line...power pulses
to the crank...
The transition from liquid to gaseous form is also referred to as
'phase change'. Look that up in an Thermal Dynamics text book and the
attendant attributes...mainly temp change and PSI
Then 'efficiency' is relative, but this is an RV forum, not a Boy Racer
forum. So the middle of the bell curve...meaning most won't understand,
nor care about those attributes...just HP man...HP...and the King of the Hill
marketing stuff
"Efficiency" can be defined as MPG, SMOG, HP/Torque, drivability, etc
Individually or a combo of some to a combo of all...and guess what?
Regulatory agency requirements are at the top of that list...
Noodled tossing in GDICI ICEs that will be coming to market some
day...but that might give me another headache... :B
level of knowledge that GearHead/BoyRacers do...nor the experience of
fine tuning them to their own liking...generally speaking... :B
Must say though that the OEMs have and are pushing in BoyRacer stuff
all the time...but...not all BoyRacer nor track stuff is a good idea for
street usage
You guys are into the laws of physics both on Vee vs In-line and fueling
of our ICEs
There are always 'give and take' or 'compromises' between the OEMs and
buyers. Toss in the government agencies
They all have their weak and strong points...
Carbs fuel up stream of the valves...to have the manifold fulled with
an air/fuel mixture. But that has higher potential for ignition in the
manifold and pre-ignition/knock/etc...dependent on a host of attributes.
Homogeneous mixture is a good way to describe this intake charge
Injection can be very similar to carbs (TBI, throttle body injection)
to port (injection at the intake valve area) to direct injection
(injection inside the CC). Gone today is manifold air/fuel...just air
Not as even a blend as a carb would provide
The problem with injection is the droplet size and any vaporization
that is hoped for...why the PSI's of today's system...because the orifice's
are getting smaller and smaller in order to atomize (droplets) to as
small a size as possible. There will be rich zones and lean zones to
even just air zones
That then gets into the shape of the intake system, the CC shape (why
BoyRacers will have their CC's shaped, polished, matched & flowed, etc)
Hint...this relates directly to the Vee vs in-line...power pulses
to the crank...
The transition from liquid to gaseous form is also referred to as
'phase change'. Look that up in an Thermal Dynamics text book and the
attendant attributes...mainly temp change and PSI
Then 'efficiency' is relative, but this is an RV forum, not a Boy Racer
forum. So the middle of the bell curve...meaning most won't understand,
nor care about those attributes...just HP man...HP...and the King of the Hill
marketing stuff
"Efficiency" can be defined as MPG, SMOG, HP/Torque, drivability, etc
Individually or a combo of some to a combo of all...and guess what?
Regulatory agency requirements are at the top of that list...
Noodled tossing in GDICI ICEs that will be coming to market some
day...but that might give me another headache... :B
