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Message
re: Why isn't fuel economy getting better? *Spinoff from Ecoboost thread*
Posted on 3/11/13 at 12:53 pm to DownshiftAndFloorIt
Posted on 3/11/13 at 12:53 pm to DownshiftAndFloorIt
quote:
Tech is definitely improving
Yea but not enough IMO. For example my 10 year old truck can do the same things my cousin's brand new truck can do. Gets only slightly better fuel economy (mostly becasue I have a lift and bigger tires). Full size V8's. Where's the improvement in the last 10 years? For many industries, you buy something and in a year it's obsolete. The auto industry seems to be lacking.
3
Posted on 3/11/13 at 12:54 pm to treble hook
quote:
For example my 10 year old truck can do the same things my cousin's brand new truck can do. Gets only slightly better fuel economy
Probably all those dumb arse giant rims they put on trucks now.
Posted on 3/11/13 at 12:56 pm to s14suspense
quote:
quote:
I believe it's more a physics problem than a political statement.
Yeah plus no one here really wants a truck that'll do 40 MPG. They'd like the idea of that number but wouldn't want the cost/complexity or complete uselessness of a vehicle that'll do it.
Truth. The American marketplace wants trucks that can haul, tow, and comfortably seat 5 without sacrificing performance/speed. The government wants you to have a safe truck that produces minimal pollution. Fuel economy is secondary to the above concerns and you can't have all that and high MPG. But it is getting better.
Posted on 3/11/13 at 1:00 pm to upgrade
Those giant dumbass rims have a purpose half of the time. Big brakes require big rims
I have 20" rims from the factory. 13.5" rotors + 2 or 3" of calipers would require at a minimum 18" rims. The rotors and calipers wouldn't be able to cool down if they didn't have enough air circulation, so they have bigger rims.
Not many people think about that
I have 20" rims from the factory. 13.5" rotors + 2 or 3" of calipers would require at a minimum 18" rims. The rotors and calipers wouldn't be able to cool down if they didn't have enough air circulation, so they have bigger rims.
Not many people think about that
Posted on 3/11/13 at 1:03 pm to Hammertime
quote:
Those giant dumbass rims have a purpose half of the time. Big brakes require big rims
I have 20" rims from the factory. 13.5" rotors + 2 or 3" of calipers would require at a minimum 18" rims. The rotors and calipers wouldn't be able to cool down if they didn't have enough air circulation, so they have bigger rims.
Not many people think about that
NO.
If anything, I think truck makers are encouraged to use them because bigger rims means less tire.
Less tire means less petroleum used to make a tire.
3/4 and 1 ton trucks need bigger brakes than a half ton, and they still used 17" maybe even 16".
Posted on 3/11/13 at 1:04 pm to Hammertime
Lets also not forget to take into account the ethanol that is in gas these days...thats also another great government decision
Posted on 3/11/13 at 1:05 pm to TexasTiger
quote:
ethanol
I'm convinced this is nothing more than the government trying to stimulate farming.
Posted on 3/11/13 at 1:06 pm to dat yat
quote:
The American marketplace wants trucks that can haul, tow, and comfortably seat 5 without sacrificing performance/speed.
That's basically the point of this thread. Why can't we have all those things and have good fuel mileage? I have to believe the technology is there. We have some smart arse mofos in this country.
I'm sure the mom driving around the Tahoe doesn't give a shite about towing. Why can't they make those that get 30-35 mpg? Or at least be showing some improvement rather than being stuck in that 18-20 mpg range.
Posted on 3/11/13 at 1:10 pm to treble hook
quote:
I'm sure the mom driving around the Tahoe doesn't give a shite about towing
I think that may be some of the problem.
Soccer moms started driving SUV's and pickups.
Auto makers started making vehicles to suit their needs better, such as crossover SUV's that do get better milage, but you can't force someone to drive something they don't want.
Chevy makes the Tahoe so that it can tow.
They also make other SUV's that are more soccer mom family oriented, but you still have a choice on what you buy.
Posted on 3/11/13 at 1:15 pm to treble hook
quote:
For example my 10 year old truck can do the same things my cousin's brand new truck can do. Gets only slightly better fuel economy (mostly becasue I have a lift and bigger tires). Full size V8's. Where's the improvement in the last 10 years?
Is there a size difference between the trucks?
Posted on 3/11/13 at 1:15 pm to upgrade
quote:
ethanol
I'm convinced this is nothing more than the government trying to stimulate farming.
No need to be convinced of this. This is the stated purpose.
Posted on 3/11/13 at 1:16 pm to TigerDeacon
quote:
Is there a size difference between the trucks?
Both are extended cab short bed.
Posted on 3/11/13 at 1:19 pm to treble hook
If you could figure out how to make a truck with the size and power of today's trucks that got 50 MPG, you'd be rich enough to laugh at big oil. It's physics.
Posted on 3/11/13 at 1:20 pm to Hammertime
quote:
US auto manufacturers hire engineers from ITT Tech
The OT must've sent them there after they didn't get accepted into Harvard.
Posted on 3/11/13 at 1:21 pm to tigerfoot
quote:
I believe it's more a physics problem than a political statement.
Agree.
My 7700# truck gets 18-19MPG on the highway.
Impressive and far better than 10-15 years ago.
Posted on 3/11/13 at 1:22 pm to upgrade
Your math skills don't add up I just said some trucks require bigger rims for bigger brakes. I'd like to see you try and put 16" wheels on my truck
Posted on 3/11/13 at 1:25 pm to VetteGuy
quote:
Impressive and far better than 10-15 years ago.
quote:
My 7700# truck
So is it weight that is the issue? Then why are trucks getting heavier?
Posted on 3/11/13 at 1:27 pm to treble hook
My previous truck was a 97 gmc with a 350. Made about 320hp and on the best day got 17mpg.
A modern half ton with a similar size engine will make well over 400hp and get slightly better mileage. That is a huge improvement in a little over 10 years.
A modern half ton with a similar size engine will make well over 400hp and get slightly better mileage. That is a huge improvement in a little over 10 years.
Posted on 3/11/13 at 1:27 pm to TigerDeacon
It's bullshat
Posted on 3/11/13 at 1:28 pm to treble hook
Weight must increase with the increase in towing capacity. If you tow a 20k 5th wheel with a Tacoma, you would know that. The only brakes that do anything are the trailer brakes. You basically ride the trailer, the trailer doesn't ride the truck
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