more H3 alpha horsepower ?

gumba3ah · 02-15-2008, 07:51 AM

hi guys,

im thinking of buying a Hummer H3 alpha but first i want to know how can i increase the horsepower so it will be like the Tahoe which uses the same engine. I want the same horsepower. I know it has something to do with the hardware for emission restriction but i want to know what i can do about it.

thanks

Joevette · 02-15-2008, 02:02 PM

just put intake an exhaust on it, its not like there is much more HP in the tahoe vs the h3. you probably wont even be able to tell the difference

MalibuMaxxSS · 02-15-2008, 02:51 PM

the Alpha is 300 and the Tahoe is what 320, that would be easy with a quick flash of the PC, a K&N, and CAI, add a cat back, couple bolt ons, and you would be prolly 330-350 in no time.....

and actually the H3 should feel snappier anyhow it is quite a bit lighter the the Tahoe. does for me anyhow, the Alpha is a nice unit...thinking of making it my next off roader, almost had a new wrangler but then I heard of the HX so wiating on that maybe.

Michael_S · 02-15-2008, 03:07 PM

The H3 Alpha weighs around 5000 pounds and I think it's stuck with a four speed automatic. Even 350 horsepower wouldn't move it that fast.

You might be able to get a Sierra Denali for about the same price. The H3 looks better and undoubtedly off-roads better (it has a much shorter wheelbase if nothing else), but the Sierra Denali is pretty luxurious and gets a much better engine and transmission and will run much faster and tow much more than the H3.

MalibuMaxxSS · 02-15-2008, 05:51 PM

the 3 we got hauls ass quite nicely.....compared to the tahoe, it is a snappier vehicle, drive one, its all in the gearing as well...and ya it is stuck with the 4 speed, but if your looking for room like the tahoe, the H3 is NOT it...

The Denali would give you the 6.2 anda 6 speed, and it definately hauls, I delvierd one last week to a good customer and we went to the 'dirty' bar for a beer, and for a drive, makes the hemi an embarrassment.

Olds88 · 02-20-2008, 11:49 AM

Quote:

Originally Posted by gumba3ah

hi guys,

im thinking of buying a Hummer H3 alpha but first i want to know how can i increase the horsepower so it will be like the Tahoe which uses the same engine. I want the same horsepower. I know it has something to do with the hardware for emission restriction but i want to know what i can do about it.

thanks

One issue would be that its not the same engine

The code is different, for example my Avalanche has an LMG (5.3L Iron Block, FlexFuel). However the most restrictive thing on the H3 is its exhaust. A good exhaust will restore the missing 15 ponies (the 4wd Tahoe is 315hp.)

Olds88 · 02-20-2008, 11:50 AM

Quote:

Originally Posted by MalibuMaxxSS

the Alpha is 300 and the Tahoe is what 320, that would be easy with a quick flash of the PC, a K&N, and CAI, add a cat back, couple bolt ons, and you would be prolly 330-350 in no time.....

and actually the H3 should feel snappier anyhow it is quite a bit lighter the the Tahoe. does for me anyhow, the Alpha is a nice unit...thinking of making it my next off roader, almost had a new wrangler but then I heard of the HX so wiating on that maybe.

HEMI swapped wranglers are a force to be reckoned with!

02-15-2008, 07:51 AM	#1 (permalink)
gumba3ah Walking Join Date: Jan 2008 Posts: 7	more H3 alpha horsepower ? hi guys, im thinking of buying a Hummer H3 alpha but first i want to know how can i increase the horsepower so it will be like the Tahoe which uses the same engine. I want the same horsepower. I know it has something to do with the hardware for emission restriction but i want to know what i can do about it. thanks

02-15-2008, 02:02 PM	#2 (permalink)
Joevette 3.6 Liter V6 Join Date: Oct 2003 Posts: 1,229	Re: more H3 alpha horsepower ? just put intake an exhaust on it, its not like there is much more HP in the tahoe vs the h3. you probably wont even be able to tell the difference

02-15-2008, 02:51 PM	#3 (permalink)
MalibuMaxxSS 3.9 Liter V6 Join Date: Oct 2006 Location: British Columbia Drives: 2006 Malibu Maxx SS Posts: 789	Re: more H3 alpha horsepower ? the Alpha is 300 and the Tahoe is what 320, that would be easy with a quick flash of the PC, a K&N, and CAI, add a cat back, couple bolt ons, and you would be prolly 330-350 in no time..... and actually the H3 should feel snappier anyhow it is quite a bit lighter the the Tahoe. does for me anyhow, the Alpha is a nice unit...thinking of making it my next off roader, almost had a new wrangler but then I heard of the HX so wiating on that maybe. __________________ "You want free speech? Let's see you acknowledge a man whose words make your blood boil, who's standing center stage and advocating at the top of his lungs that which you would spend a lifetime opposing at the top of yours. You want to claim this land as the land of the free? Then the symbol of your country cannot just be a flag. The symbol also has to be one of its citizens exercising his right to burn that flag in protest. Now show me that, defend that, celebrate that in your classrooms."

02-15-2008, 03:07 PM	#4 (permalink)
Michael_S 6.0 Liter LS2 V8 Join Date: Jul 2004 Posts: 4,912	Re: more H3 alpha horsepower ? The H3 Alpha weighs around 5000 pounds and I think it's stuck with a four speed automatic. Even 350 horsepower wouldn't move it that fast. You might be able to get a Sierra Denali for about the same price. The H3 looks better and undoubtedly off-roads better (it has a much shorter wheelbase if nothing else), but the Sierra Denali is pretty luxurious and gets a much better engine and transmission and will run much faster and tow much more than the H3.

02-15-2008, 05:51 PM	#5 (permalink)
MalibuMaxxSS 3.9 Liter V6 Join Date: Oct 2006 Location: British Columbia Drives: 2006 Malibu Maxx SS Posts: 789	Re: more H3 alpha horsepower ? the 3 we got hauls ass quite nicely.....compared to the tahoe, it is a snappier vehicle, drive one, its all in the gearing as well...and ya it is stuck with the 4 speed, but if your looking for room like the tahoe, the H3 is NOT it... The Denali would give you the 6.2 anda 6 speed, and it definately hauls, I delvierd one last week to a good customer and we went to the 'dirty' bar for a beer, and for a drive, makes the hemi an embarrassment. __________________ "You want free speech? Let's see you acknowledge a man whose words make your blood boil, who's standing center stage and advocating at the top of his lungs that which you would spend a lifetime opposing at the top of yours. You want to claim this land as the land of the free? Then the symbol of your country cannot just be a flag. The symbol also has to be one of its citizens exercising his right to burn that flag in protest. Now show me that, defend that, celebrate that in your classrooms."

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