Re: V8 H3 Alpha
 

Have to understand why a larger engine can obtain better fuel mileage.
To obtain a set speed, you don't have to give it as much fuel. True, you are actually using fuel in three more cylinders, but are you using as much to move the mass off the line.
Highway driving, now you are using five cylinders at all time. With an AFM V8, on the highway, you will only be using 4-cylinders. Good case is the Escalade that went to a bigger engine and is obtaining better fuel. Part of that IS due to the six speed trans and the gearing, but part is due to the AFM system used on the engine.
As for EPA, remember, 2008 ushers in the new ratings, so the V8 will appear to get worse, while a I-5 will also appear to obtain worse milage than the 2007.
Time will tell if it gets better mileage, the same mileage or a few miles per gallon less.
Time will tell if there is a V8, and then we get to see how GM Marketing markets the vehicle to the public.

Re: V8 H3 Alpha
 

Mileage is a consideration, but the power would be reason enough for me.

Screw the whiners, bring the horsepower and torque! :excited:

Re: V8 H3 Alpha
 

Exactlly! There are other SUVs close to the same weight with better gas milage and more power/quicker than the H3. What man in their right mind would be against more power?

Re: V8 H3 Alpha
 

that's the part that has me skeered

Re: V8 H3 Alpha
 

Skeers me too. Look at this year, the released two really nice new colors, but only offer them on the bling model. Actually stopped one sale of a 1007, since I was willing to trade in for a Sunset Orange Lux with an off-road package, and I can't get it...thanks to marketing.

Here's what I can imagine....
IF there is a V8, it will only be available in the luxury package, maybe with an off-road package, maybe not. But you can bet the option price for a V8, IF THERE IS ONE, will be high.

Re: V8 H3 Alpha
 

I dont know about all you gas milage folks but I bought my HUMMER for the companies reputation for fuel saving vehicles :p

/sarcasm off

If there is a V8 and the mileage sucks... Oh well...

The HUMMER is a utility vehicle... its doesn't slip through the air... its designed to get me where I want to go when I want to get there pretty much when I want too no matter the conditions. /hug my H3

The V8 would only be more icing on the already sweet cake.

Just my opinion
:jump:

Re: V8 H3 Alpha
 

I see the point about the possibility of a marginal improvement in highway only mileage with a V8. But the AWD Escalade probably running premium gets 13/19 EPA mpg vs. H3 3.5 16/19 EPA mpg (comparing apples to apples). so the possibility looks somewhat bleak. Of course the Escalade is heavier but it's much more aero, running street tires, tall gearing, etc.

I'm sure GM is trying to figure what (if any) incremental sales volume increase would result from a V8 option since this really is a business decision. But I would like to hope...

Re: V8 H3 Alpha
 

IF GM was to drop a V8 in the H3 would teh front be modified for the bigger engine or would it fit under the hood as it is now? and also someone mentioned that is a V8 is put in the front axle would be changed, could that possibly mean cast iron with a locker?

oh and i also think the H3 will get the same milage if just engine (without AFM) is changed, but since it will get a new trans (6 speed) milage should probly be better, and thats if anything happens at all. Thats just how i look at it. its just simple physics no matter who pulling what, its gona take teh same energy to move it, juss because its a V8 that does mean the H3 is gona get any lighter, if anything heavier.

Re: V8 H3 Alpha
 

lmao :beerchug: :giggling:

Re: V8 H3 Alpha
 

if this is an 08 model when do they go on sale? im not familiar when hummer starts selling their 08 models....


thanks,
spencer

Re: V8 H3 Alpha
 

Model change this year for Colorado, Canyon and H3 will be toward the end of June. You wouldn't see any 2008 models in quanity at a dealership until September.

Re: V8 H3 Alpha
 

sweet, so if i ordered one the day they were available would i have a chanve to have it in by the middle of august? (thats when i head to college)


thanks,
spencer

Re: V8 H3 Alpha
 

Just remember first 2 weeks of July is vacation down time at GM. You might call the Hummer help number and ask when you could order a 2008. But options change from year to year and that information might not be available if you order too early.

Re: V8 H3 Alpha
 

Under powered = more rpms = ineficcient=suffering mileage. Adequate power = less rpms, yada yada.

Re: V8 H3 Alpha
 

I wish it was that simple....

Re: V8 H3 Alpha
 

You are making it too complicated. Weight is the biggest thing. Aero only comes into play at higher speeds (hwy mileage). Its all about getting the right motor for the right vehicle. The torque and horsepower curves need to jive with the everyday use/reqirements of the vehicle. An underpowered vehilcle is constantly working to keep up, and adequately powered vehilce remains in the engine's sweets spots longer.

Re: V8 H3 Alpha
 

ditto....

E F F I C I E N C Y

it's all about the ability to produce the power with the given amount of fuel.... all other factors remaining the same. Obviously there has to be a breakover point in the design of a engine to reach the best efficiency to utilize all the fuel and gulp enough air to burn with it as it forces it's power against the forces of the vehicle that want to make it remain stopped.

If you simply assumed the smaller you go the better, a motorcycle engine would be the best, but it won't since it would be at full throttle all the time just to keep the vehicle from stopping.

Small engines don't belong in trucks.

Re: V8 H3 Alpha
 

Agreed, right motor for right vehicle makes a lot of sense. When GM picked the I5 for the H3, mileage was a big consideration. Other engines had advantages in the power department but not better mileage. All Hummers are underpowered for aggressive road driving by American standards, but they are optimized by design to have serious offroad capability. It's all relative, compare the mediocre mileage of the H3 to the really low mileage of an H2 and the difference is significant (20-25% difference). A Hummer is not an Element, but I've heard some have cross-shopped both.:D

Re: V8 H3 Alpha
 

I don't think the mileage was as much an issue in choosing the I5 as the fact that it was already available. Why plonk all the money into R&D when you already have an engine that is capable enough and that you can drop right in.

Now that the H3 is released and successful, and enough people are complaining about power, it makes sense for GM to look at other options.

Re: V8 H3 Alpha
 

agreed....

had nothing to do with the fact that it was already in the colo/canyon