10-25-2010, 07:18 PM
|
#21 (permalink)
|
|
home of the odd vehicles
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,882
Thanks: 500
Thanked 865 Times in 652 Posts
|
Opposing 2 bangers can be smooth but they need to both fire at the same time. A little rock and roll never hurt anyone anyway.
I would love an underpowered car if the darn thing would net VERY high FE. To me a single or 2 person vehicle should never weigh more than 1000lbs, thats where the magic starts. 
"Since Fiat bought Chrysler we may see this engine in a few small cars. Like maybe offer the 2 cylinder in a Dodge Viper?" Might as well put it in the Dodge Ram 1500 crewcab while you are at it.
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
10-25-2010, 10:25 PM
|
#22 (permalink)
|
|
Hypermiling rookie
Join Date: Jan 2010
Location: Limassol , CY
Posts: 288
Thanks: 17
Thanked 36 Times in 21 Posts
|
in the Fiat they do fire at the same time. 1000lbs would probably not pass safety regulations unless they use ultra-high-tech materials that would put prices sky-high. Maybe with future technology.
Being a 2-stage turbo this thing has really good potential for FE because that significant amount of torque (i'm comparing it with similar European cars, not American) kicks in at unusually low revs for a gasoline engine ~ 1900-2000rpm. Which probably means a decent 40-50mph in high-gear at 2000rpm.
It is not underpowered, again, comparing it w/ similar size EU vehicles. If they bring it over soon I'll definitely sign-up for a test drive and see how it feels.  |
|
|
|
|
10-26-2010, 12:42 AM
|
#23 (permalink)
|
|
EcoModding Apprentice
Join Date: Oct 2010
Location: New Zealand
Posts: 119
Thanks: 0
Thanked 28 Times in 8 Posts
|
2 cylinder turbo'd "boxer" engine would be lots of fun, it would idle like a dam tractor but does that matter when your pulling 60mpg out of it??
as for tourque im impressed its almost half of what my 1.2L motor produces (300nm of pushrod power) ,
acceleration would be "snappy" on it but i do believe that it would struggle moving 2 people, especially if it is a 4 stroke |
|
|
|
|
10-26-2010, 04:02 AM
|
#24 (permalink)
|
|
Master EcoModder
Join Date: Jun 2009
Location: UK
Posts: 659
Thanks: 20
Thanked 12 Times in 12 Posts
|
It has MORE torque than the 1.4 petrol and more power than one of the diesels! to be honest I think it should make the 1.2 8v obsolete.
I really wish I could have had a drive in the lil rumbler!
__________________
-----------------------------------------
good things come to those who wait, sh*t turns up pretty much instantly
twitter.com/bertchalmers
|
|
|
|
|
10-26-2010, 07:20 AM
|
#25 (permalink)
|
|
Hypermiling rookie
Join Date: Jan 2010
Location: Limassol , CY
Posts: 288
Thanks: 17
Thanked 36 Times in 21 Posts
|
Quote:
Originally Posted by pounsfos
2 cylinder turbo'd "boxer" engine would be lots of fun, it would idle like a dam tractor but does that matter when your pulling 60mpg out of it??
as for tourque im impressed its almost half of what my 1.2L motor produces (300nm of pushrod power) ,
acceleration would be "snappy" on it but i do believe that it would struggle moving 2 people, especially if it is a 4 stroke |
That must be one very heavily modified engine or it's a typo...300Nm out of a 1.2 non-turbo gasoline engine ? 
According to the manuals, 3K-H engines have 54 BHP / 83Nm Link |
|
|
|
|
10-26-2010, 12:37 PM
|
#26 (permalink)
|
|
EcoModding Apprentice
Join Date: Oct 2010
Location: ireland
Posts: 102
Thanks: 8
Thanked 52 Times in 34 Posts
|
Quote:
Originally Posted by Laurentiu
in the Fiat they do fire at the same time. 1000lbs would probably not pass safety regulations unless they use ultra-high-tech materials that would put prices sky-high. Maybe with future technology.
Being a 2-stage turbo this thing has really good potential for FE because that significant amount of torque (i'm comparing it with similar European cars, not American) kicks in at unusually low revs for a gasoline engine ~ 1900-2000rpm. Which probably means a decent 40-50mph in high-gear at 2000rpm.
It is not underpowered, again, comparing it w/ similar size EU vehicles. If they bring it over soon I'll definitely sign-up for a test drive and see how it feels. |
Assume you mean that the pistons reach tdc at the same time. Very much doubt that they fire at the same time as that would require one heck of a flywheel. |
|
|
|
|
10-26-2010, 12:42 PM
|
#27 (permalink)
|
|
(:
Join Date: Jan 2008
Location: up north
Posts: 12,762
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
|
I have several 2 cylinder motorcycles that idle and run smoothly.  |
|
|
|
|
10-26-2010, 12:44 PM
|
#28 (permalink)
|
|
Master EcoModder
Join Date: Sep 2010
Location: Denver, CO
Posts: 1,300
Thanks: 315
Thanked 179 Times in 138 Posts
|
I remember riding on my Dad's BMW motorcycle, two cylinders opposed. It had a massive flywheel, as was very well balanced. Very smooth bike.
I'm sure the cylinders don't fire at once, they just hit TDC together. A two stroke twin, that would be insane.
__________________
I'm not coasting, I'm shifting slowly.
|
|
|
|
|
10-26-2010, 12:54 PM
|
#29 (permalink)
|
|
Hypermiling rookie
Join Date: Jan 2010
Location: Limassol , CY
Posts: 288
Thanks: 17
Thanked 36 Times in 21 Posts
|
Here's a video of it working . I'm not too technically inclined so I don't know if they reach TDC at the same time, it just look as if they are moving in perfect tandem.
|
|
|
|
|
10-26-2010, 01:21 PM
|
#30 (permalink)
|
|
Master EcoModder
Join Date: Jul 2010
Location: Belgium
Posts: 4,683
Thanks: 178
Thanked 652 Times in 516 Posts
|
Quote:
Originally Posted by Laurentiu
Here's a video of it working . I'm not too technically inclined so I don't know if they reach TDC at the same time, it just look as if they are moving in perfect tandem.
|
Around 1:40 the vid shows the camshaft lobes.
It's a classic parallel twin design - both cilinders going up/down in unison - but they fire on different moments.
__________________
Strayed to the Dark Diesel Side
|
|
|
|
|
