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View Full Version : H1 Alpha top speed


Huck BB62
03-28-2007, 04:50 PM
Hi H1 folks. I've got a raging debate on what the top speed of the H1 Alpha is. I know it's a silly argument, it's just for bench racing's sake. Anyone here remove the limiter and found out?

usetosellhummer
03-28-2007, 06:05 PM
I dought you will found someone who has due to the risk of warrenty and heat issue.

terry
03-29-2007, 01:15 AM
I have an 06 alpha. 80 is about all I have seen so far. I agree with the other response concerning the warrenty.
terry

Steve - SanJose
03-29-2007, 01:21 AM
Wow, and I've had my H3 up to 95mph with sustained cruising at 85mph. Different kind of rig for sure.

3Hummer
03-29-2007, 02:21 AM
Wow id like to konw that too probably like 20MPH hahahaa just messing, i do wonder though thats a good question.

Huck BB62
03-29-2007, 05:36 PM
I have an 06 alpha. 80 is about all I have seen so far. I agree with the other response concerning the warrenty.
terry

I understand, the Dmax is an expensive critter. I'm still surprised that noone's chipped and did the aftermarket exhaust thing on their H1. Tons and TONS of people are doing it to the trucks. But again, being a Dmax owner, I completely believe that it's fine stock, so I never bothered. Personally, I believe that the H1 could do about 120 with the program change.

ssgharkness020147
03-29-2007, 11:43 PM
Plenty of people have done this change. I know of two H1 owners making over 600 hp in their duramax rigs. Lots of people that do those mods buy them through the dealer and dont post online. The parts dept at my local dealer is about to put a stage III computer in one of his customer's Alpha's.



I understand, the Dmax is an expensive critter. I'm still surprised that noone's chipped and did the aftermarket exhaust thing on their H1. Tons and TONS of people are doing it to the trucks. But again, being a Dmax owner, I completely believe that it's fine stock, so I never bothered. Personally, I believe that the H1 could do about 120 with the program change.

Steve - SanJose
03-30-2007, 12:00 AM
Like wow man.

BlueHUMMERH2
03-30-2007, 01:36 AM
Technically speaking, with stock Wrangler GSA's, you're limited to 99MPH because of a "Q" sidewall rating. And personally, with about 8,000 pounds of metal and 12" rotors, I don't think I'd want to go all that fast.

Huck BB62
03-30-2007, 06:21 AM
Technically speaking, with stock Wrangler GSA's, you're limited to 99MPH because of a "Q" sidewall rating. And personally, with about 8,000 pounds of metal and 12" rotors, I don't think I'd want to go all that fast.

Nah, it'd be just fine even with a blowout. Todays tires are so much better than what I used to drive on. I'd take the stock tires on the H1 to over 120mph any day, after all, I used to go that fast on bias plys in my old Ford Galaxie! Seriously, the H1's so wide and stable that at 100mph a blowout wouldn't be a huge problem. Quite unlike the movies where vehicles go cartwheeling down the street when a tire gets shot out, the H1 would steer well and just be pulled over to the side. It might be ugly in the fender well, but shouldn't be any big freakout deal.

Ground hawg
03-30-2007, 08:14 PM
Nah, it'd be just fine even with a blowout. Todays tires are so much better than what I used to drive on. I'd take the stock tires on the H1 to over 120mph any day, after all, I used to go that fast on bias plys in my old Ford Galaxie! Seriously, the H1's so wide and stable that at 100mph a blowout wouldn't be a huge problem. Quite unlike the movies where vehicles go cartwheeling down the street when a tire gets shot out, the H1 would steer well and just be pulled over to the side. It might be ugly in the fender well, but shouldn't be any big freakout deal.

YOUR NUTS, my H1 went all over the damn road just becouse 1 wheel lost balance. if you think you could handle the forces of o blown out of balance tire at 100mph then your out your frigin tree:twak:

Steve - SanJose
03-30-2007, 10:45 PM
yeah, I've seen those movies...

BlueHUMMERH2
03-31-2007, 12:29 AM
Nah, it'd be just fine even with a blowout. Todays tires are so much better than what I used to drive on. I'd take the stock tires on the H1 to over 120mph any day, after all, I used to go that fast on bias plys in my old Ford Galaxie! Seriously, the H1's so wide and stable that at 100mph a blowout wouldn't be a huge problem. Quite unlike the movies where vehicles go cartwheeling down the street when a tire gets shot out, the H1 would steer well and just be pulled over to the side. It might be ugly in the fender well, but shouldn't be any big freakout deal.

Do the grab handles in your trucks have permanent imprints in them from your passengers clinging to them for their lives? A HUMMER does NOT make one anywhere near indestructable. Fast is for sports cars with ESC, Brembos, sport tires, and finely tuned suspensions. I'm sorry for the mean reply, but everyone has a responsibility for the safety of other drivers and themselves. Especially those who drive heavy and large vehicles which can inflict a ton of damage on the average car. Like this thread. (http://www.elcovaforums.com/forums/showthread.php?t=25799) If someone wants to go fast, they should buy something that is designed to go fast.

Remember too that in an H1, because of the geared hubs, the brakes are stopping about twice the speed of the vehicle. So if you're "cruising" along at 120MPH, the brakes are going to be working as hard as if they were stopping from 240MPH.

Great power=Great responsibility.

Hummer Guy
04-03-2007, 03:03 AM
95-100 range...and yea, you don't want those things going that fast anyway...yikes.

frenzy1
04-03-2007, 04:00 PM
^^^i agree !

Hummer Aficionado_VT
04-03-2007, 10:51 PM
All I can say (or imagine) is:

H1 + 100mph = flying brick of death and carnage.

Stay to the speed limit would be my answer. Don't push it, especially in that rig. :dancingbanana:

Steve - SanJose
04-04-2007, 01:36 AM
hypothetical at best...

BlueHUMMERH2
04-08-2007, 01:05 AM
I have been advised that H1's are limited in speed by the geared hubs well before the tire's speed limitations.

BlueHUMMERH2
04-12-2007, 10:43 AM
I can say from experience that an H1 is scary above 60 MPH. 70 will make you need earplugs. 80 is almost certain doom. 100 MPH would be pure insanity, and the geared hubs would probably explode in a terrific display of death. :D

smitham
04-12-2007, 06:43 PM
I have a friend who has an Alpha. He has re programed the computer, but he has no problem going over 100 and has done this several times. It seems like everything we meet up to go off roading I hear "I was running late so I was going over 100 to get here on time". Last week another friend in a H3 has to call him and tell him to slow down because the h3 stops just before 100.

mstams
04-12-2007, 11:15 PM
I have a friend who has an Alpha.

Does he live in Tampa?

smitham
04-13-2007, 04:36 PM
Yes he does... How did you guess?

mstams
04-13-2007, 05:14 PM
Yes he does... How did you guess?

I chat with him from time to time comparing notes on Alpha ownership. He told me about the chip...

It\'s a Dry Heat
05-17-2007, 04:06 AM
http://www.youtube.com/watch?v=FPF-rPe0M-M

H1Pilot
06-12-2007, 05:21 PM
I have a dmax in my 2000 H1 and top out at 90mph. It cruises nice at 70 and pulls about 16mpg. If I travel 75 it drops to 12-13mpg. I have no idea how much fuel I use at 90, but don't care to find out because it is not comfortable at that speed. After all, it is still an H1 regardless of the power plant. I do get from 0 to 70 pretty damn quick though.

3Hummer
06-12-2007, 05:36 PM
I have a friend who has an Alpha. He has re programed the computer, but he has no problem going over 100 and has done this several times. It seems like everything we meet up to go off roading I hear "I was running late so I was going over 100 to get here on time". Last week another friend in a H3 has to call him and tell him to slow down because the h3 stops just before 100.


Wasnt there but a good friend of mne got the H3 after i did he said he got it up to 105 on the highway, but then again, wasnt there, but he made of had a massive tailwind which, when driving a brick, would help a lot