Hummers

[Neutrino]

Originally Posted by ExtreemATV

with a FWD car they are pritty much the same as the AWD and the RWD are the ones that waist the most petrol, the main reason that you hear that the SUV's waisting petrol is because 1/2 of them are part time 4WD with a huge engine which makes it a part time RWD. you don't normally hear an AWD drinking petrol.

dude I'm sorry but as much as you claim to have worked on cars, you don't even know the basics.

FWD or mid engine RWD cars have the least parasitic loss at about 10%
RWD come second with around 15% loss
AWD cars have by far the most loss at around 20% sometimes as high as 25%

so yes AWD setup will cause the worse gas mileage with the same given engine, CD and gear ratios.

[engineer]

hmmm and extreemATV claims ot be a student of mechanical engineering when he doesnt seem 2 even have high school physics down....

[ExtreemATV]

you go and check it out at

http://www.gm.com/automotive/vehicle...l_economy.html

if you dont believe me

and why do i need to add physics to this

[Neutrino]

Originally Posted by ExtreemATV

you go and check it out at

http://www.gm.com/automotive/vehicle...l_economy.html

if you dont believe me

and why do i need to add physics to this

WTF that proves absolutelly nothing, it just shows the gas mileages between brands. those are cars with completelly different engines, CDs and gear ratios the 3 other vital variables.

Anyway lets do this lets convert an EVO to FWD by removing the center and rear diff and lets compare its gas mileage to a regular AWD EVO. Yes the FWD evo will be by far more fuel efficient and it will put way more power to the wheels.

Dont belive me call Shiv at Vishnu tuning and ask him why the Buschur racing dyno reads more than his beside the differnce that one is a Dyno Dynamics Dyno and the other one is a Dynojet. I'll provide you with the phone numbers if you would like.



Ok and you claim to be a student of mechanical engineering so let me ask you this very simple questions:

1. How do you find which turbo compressor matches a given engine?
2. How does Af ratio affect the EGT?
3. If detonation is detected what is the first thing a car's ECU will do?

[off_roader]

sounds like ExtreemATV isnt a mechanical engineer.

but i understand were he comes from.

my best mates GF ouns a Rav 4 which has great fule economy but not as much as a RWD car

[engineer]

Originally Posted by ExtreemATV

yes nissan did put them in the R32 not shure about the others but the set up isn't like the honda it is different
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Hnda Prleude
/ /
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Skyline R32
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with a FWD car they are pritty much the same as the AWD and the RWD are the ones that waist the most petrol, the main reason that you hear that the SUV's waisting petrol is because 1/2 of them are part time 4WD with a huge engine which makes it a part time RWD. you don't normally hear an AWD drinking petrol.

NO HICAS and all 4ws (that i know of) turns the back wheels opposite to the front.... and hicas ruins drifting and hard cornering.... as a magazine once beautifully stated it.... "hicas comes in..... correcting ur steering inputs, in turn u correct its steering inputs, which inturn it corrects ur steering inputs which were correcting its steering inputs wich were correcting ur steering inputs in the first place...." (makes u think...)

people serious about performance have HICAS removed or disconnected....

[Elk]

Originally Posted by Bavarian Boy M3

I know this is probably a cliche, but i just hate these monsters. they have absolutely no purpose, seeing as to maybe 1% of owners ever take them offroad. they are ugly, horrible on the environment, slow, and dangerous to other drivers, just like all other SUV's. the hummer is just an extreme example of an SUV. and why would any sane person ever lower, put aftermarket rims, etc. on a hummer, or for that matter, an escalade or navigator or any other SUV? im glad in a way that this gas crisis is coming, because it will force SUV drivers to buy an economical, REAL car.


and while this is off topic, why is there the word "sport" in sport utility vehicle? i know im not the only one who knows these things aint exactly sporty.

People buy Hummers for the same reasons you bought your M3. It's name, price & look make it a status symbol. And (or) for its performance/capability.

If you really cared about the environment you'd be riding a 250cc motorcycle that gets 70MPG. Plus think how much safer someone driving a car would be hitting you riding a bike than if they hit your M3.

[mason_RsX]

if you REALLY cared about the environement you would walk, compost, have a solar powered house, and go vegan! the point is most people want to help the environment to a certain extent, and an H2 doesn't help, it hurts; alot.

[nbw]

Originally Posted by Jimster

Then why do Excursions and Hummers struggle to make up double digit MPG figures?


I say make it so that to drive an SUV (or Ute) of any sort you should need a special licence.

I completely agree

[Elk]

Originally Posted by mason_RsX

if you REALLY cared about the environement you would walk, compost, have a solar powered house, and go vegan!

Ok all be more reasonable if he really cared about the environment he would have bought a Mini.

MPG
city/highway
H2 10/13
M3 16/24
Mini 25/37

[panzershreck]

i dont like most SUV's today because they have no capabilities at all... just big rolling mini-vans, except with less room than a station wagon...

[240NIZ]

Overpriced soccer mom mobiles.

[ExtreemATV]

NO HICAS and all 4ws (that i know of) turns the back wheels opposite to the front.... and hicas ruins drifting and hard cornering.... as a magazine once beautifully stated it.... "hicas comes in..... correcting ur steering inputs, in turn u correct its steering inputs, which inturn it corrects ur steering inputs which were correcting its steering inputs wich were correcting ur steering inputs in the first place...." (makes u think...)

people serious about performance have HICAS removed or disconnected....

i have seen the R32 with my own two eyes and the back tyres turn the same way as the front, maby it was an aftermarket job but just last week i overheard someone talking and they were talking about when chainging lanes in a R32 it is like the car is sliding left/right.

i know for a fact that the prelude turns the back wheels opposite to the front but the skyline dosen't.