Lancer Evolution X News, Info, Pics, etc... | [ALL THREADS MERGED]
Newbie
Joined: Oct 2006
Posts: 9
Likes: 0
From: Hell (Houston)
vigo. thanks for the search button help. i will look into that one. and the crystal ball i am sure they have them at walmart, so again thanks. i guess i probably have sold myself into the IS 350 anyway, i just hope i do not loose to much performance from the two.
mfactor. it is where they placed the paddle shifters that make it uncromfortable. like i said i guess i will have to give it try.
techno junkie i did not say houston is ghetto. but i am from philly and the rednecks and the f150s along with the traffic is unnerving.
mfactor. it is where they placed the paddle shifters that make it uncromfortable. like i said i guess i will have to give it try.
techno junkie i did not say houston is ghetto. but i am from philly and the rednecks and the f150s along with the traffic is unnerving.
How is it uncomfortable? You have to move your hands like a millimeter to shift? Suck it up, its obviously better than moving your hand a foot to shift, and then another foot back to the wheel.
Evolving Member
Joined: Feb 2007
Posts: 491
Likes: 1
From: Redmond Washington
cast iron vs cast aluminum
If you want to take a crash course in understanding the strength comparison between Cast Aluminum and Cast Iron without first spending 4 or 5 years in Engineering school, take a look at this article:
http://www.forging.org/members/docs/...marySept04.pdf
This research was done to show how much better forging is than casting, which everybody knows already. But what is interesting is that for every test category, forged steel is compared with cast aluminum and cast iron. So you can use the results to compare cast aluminum with cast iron, the relevant materials for us since nobody makes a forged engine block, they are all cast. In each comparison, the strength of forged steel is 100%. Then they give the strengths of cast aluminum and cast iron as percentages of the strength of forged steel. So a higher percent is better.
I'll pull out the comparisons that are probably the most relevant for engine block strength, hope this thing doesn't squish my paragraphs all together:
Ultimate Tensile Strength:
cast aluminum 37%
cast iron 57%
Yield Strength:
cast aluminum 42%
cast iron 54%
cyclic Yield Strength:
cast aluminum 54%
cast iron 75%
Long Life Fatigue strength (1 million cycles):
cast aluminum 35%
cast iron 72%
And there's lots more, but they all show cast iron to be quite a bit stronger than cast aluminum. So the idea that cast iron is probably the strongest way to go for an engine block is not a myth. Aluminum engine blocks are a way to save weight, not a way to make the engine stronger.
http://www.forging.org/members/docs/...marySept04.pdf
This research was done to show how much better forging is than casting, which everybody knows already. But what is interesting is that for every test category, forged steel is compared with cast aluminum and cast iron. So you can use the results to compare cast aluminum with cast iron, the relevant materials for us since nobody makes a forged engine block, they are all cast. In each comparison, the strength of forged steel is 100%. Then they give the strengths of cast aluminum and cast iron as percentages of the strength of forged steel. So a higher percent is better.
I'll pull out the comparisons that are probably the most relevant for engine block strength, hope this thing doesn't squish my paragraphs all together:
Ultimate Tensile Strength:
cast aluminum 37%
cast iron 57%
Yield Strength:
cast aluminum 42%
cast iron 54%
cyclic Yield Strength:
cast aluminum 54%
cast iron 75%
Long Life Fatigue strength (1 million cycles):
cast aluminum 35%
cast iron 72%
And there's lots more, but they all show cast iron to be quite a bit stronger than cast aluminum. So the idea that cast iron is probably the strongest way to go for an engine block is not a myth. Aluminum engine blocks are a way to save weight, not a way to make the engine stronger.
Newbie
Joined: Mar 2007
Posts: 3
Likes: 0
From: LI, NY
don;t forget that the IS is an old school automatic that just has paddles to shift "manually". My wife's tsx has a manual mode where you just push the shifter forwards adn back to select gears. it's more engaging that i would have imagined, however it makes the normally buttery smooth 5spd a little jerky in manual mode.
the evo x paddle tranny is mechanically a manual, just without a clutch pedal and the paddles electronically operate the clutch(es) rather than your foot and a pedal. However until people start driving the X with this tranny, who knows how good it's going to be. I'm hoping that is a great transmission.
the evo x paddle tranny is mechanically a manual, just without a clutch pedal and the paddles electronically operate the clutch(es) rather than your foot and a pedal. However until people start driving the X with this tranny, who knows how good it's going to be. I'm hoping that is a great transmission.
I'll pull out the comparisons that are probably the most relevant for engine block strength, hope this thing doesn't squish my paragraphs all together:
Ultimate Tensile Strength:
cast aluminum 37%
cast iron 57%
Yield Strength:
cast aluminum 42%
cast iron 54%
cyclic Yield Strength:
cast aluminum 54%
cast iron 75%
Long Life Fatigue strength (1 million cycles):
cast aluminum 35%
cast iron 72%
And there's lots more, but they all show cast iron to be quite a bit stronger than cast aluminum. So the idea that cast iron is probably the strongest way to go for an engine block is not a myth. Aluminum engine blocks are a way to save weight, not a way to make the engine stronger.
Evolving Member
Joined: Feb 2007
Posts: 491
Likes: 1
From: Redmond Washington
That's right, same cross-section. If you have no particular constraints on the space available for your part, you can use a lighter weaker material and make the part larger with more volume of material, thicker, or spread out farther from the neutral axis to give greater moments of inertia, or whatever, to make up for it. In that situation you would go more with "strength per pound" type comparisons. Cast aluminum would usually be better than cast iron in a situation like that.
But in an engine block you've got space constraints in some critical areas. The engine needs to be compact. The main bearing webs in the crankcase can only be about as thick as the main bearings are long, for example. The cylinders can only be so thick, because of limitations on the room for them.
One thing that will help save this engine, I hope, is it will have cylinder liners made out of, yup, you guessed it, Cast Iron!
But in an engine block you've got space constraints in some critical areas. The engine needs to be compact. The main bearing webs in the crankcase can only be about as thick as the main bearings are long, for example. The cylinders can only be so thick, because of limitations on the room for them.
One thing that will help save this engine, I hope, is it will have cylinder liners made out of, yup, you guessed it, Cast Iron!
Evo X will be available in 6spd v. This should be stickied
I'm sick and tired of the haters on the new DSG system
So from mitsu's direct website
http://www.lancerproject.com/lancer/
Then click Prototype X and youll see their video sayig specifically that they will offer stickshift
Seriously every other hater thread explains how crappy the new system is but doesn't ahve to get it
So from mitsu's direct website
http://www.lancerproject.com/lancer/
Then click Prototype X and youll see their video sayig specifically that they will offer stickshift
Seriously every other hater thread explains how crappy the new system is but doesn't ahve to get it
Account Disabled
Joined: Mar 2005
Posts: 2,001
Likes: 0
How do you know it will be the same weak six speed from the current Evos? Being a six speed does not automatically make it weak. It can be a twelve speed and still be strong. It's the way it's built and the strength of the materials that will dictate the strength of the transmission. What a boob.
