Hd Hmmwv M1151a

[BigKofJustice]

Well looks like that prototype "super duty" HMMWV is gearing up for production.

http://www.real4wd.com/content/ausa/default.asp

More interior room, higher ceiling, Optimizer 6500 engine, doesn't look like a Duramax 6600, larger wheels, more ground clearance, more interior room, blast tub, upgraded cooling. Looks like the larger hood is for the new cooling stack design, which uses a larger radiator and oil cooler/condenser layout. Also has cooling system on the differentials as well, although I'm seeing that popping up in newer HMMWV's.

Cosmetically the hood is pretty fugly, they should have kept it angular but its the military, no point to put lipstick on a pig.

Those 24 bolt 2 piece wheels look sweet, wonder if those are 17-18"'s getting 16.5" HMMWV tires is a pain.

[spork2367]

bfgoodrich got the military contract for the hmmwv tires from goodyear, i've seen pics of the mud terrain km2 in a 16.5. i'm hoping they release it to the public next year when they release the rest of the sizes. would be sweet for those of use running the 8 and 12 bolt 16.5 rims. i think it's a 37x12.50. i don't know what that rim diameter is, but i'm guessing there is already a km2 designed for it.

also, x2 on that hood being fugly. the only justification for something that ugly would have to be that the ugly curves deflect 50 caliber rounds or something...if some designer actually thought that looked good, they should be beat with a rubber hose.

[AtlantaK-5er]

That thing is pretty darn mean. I agree about the hood (ghey looking) but I'm sure it was purpose-built. Those MTR Military's are cool too. Civilian version??? 2009 H1 Alpha?

[BigKofJustice]

It would be interesting to see BFG's in 16.5 soon, its coming for the Military, Goodyear had the HMMWV exclusive contract for too long.

The BFG's ride and have better tolerances then the Goodyear's on the H1/HMMWV application by a long shot. Every good year 37x12.5x16.5 tire I've ever seen has always been slightly out of round.

If they make the 16.5's available for the public, it would be awesome for all the Hummer owners running 16.5's. A bit too late for me, I just got a set of OE 17" One piece alloys off ebay. I'll sell my old 16.5 Alloys with M/T's to offset the cost of the new wheels and tires.

[spork2367]

AtlantaK-5er

you could already buy the military mtr in a 16.5. they are like 600.00 a piece. a huge rip off. and none of it matters, goodyear no longer has the hmmwv tire contract.

[AtlantaK-5er]

Why did the military even use the 16.5" rims? I just dont see why not just go w/ a 17. Don't all 16.5" rims lack a flange that is found on 17's or something like that?

[spork2367]

when the 16.5 was adopted there weren't many 17" tires. 17 inch rims have only become popular off road in the last 8 years or so. the 16.5 has been used as a truck tire rim for a long long time. there is a difference in the bead angle between half inch sized rims and even sized rims. i'm not an expert though. i think the 16.5's have like a 15 degree bead angle and regular tires are like 5. on a double beadlock though it isn't a problem. the problem is people running them at low pressure on the stupid mickey thompson wheels with no bead lock. in that circumstance they do come off easier.

found something else. the half inch size tires were originally for commercial applications and the steeper bead angle and lack of a safety bead made them much easier to change on the road, and at higher on road pressures with low side loads it didn't make much of a performance difference. some people put a bead of weld on the inside of steel rims to make up for the lack of a safety bead.

[BigKofJustice]

Originally Posted by spork2367

AtlantaK-5er

you could already buy the military mtr in a 16.5. they are like 600.00 a piece. a huge rip off. and none of it matters, goodyear no longer has the hmmwv tire contract.

Good year will still make HMMWV tires its just that they're not longer exclusive to the military contract. Since both wars started up, they've been hard pressed to keep up with demand for MT's. 16.5" GSA's and MT's used to run 300$/ea before the war but they dropped 16.5" GSA's and MT's are extremely difficult to get, I've seen prices of 1000$/per tire for MT's in some cases.

So I'm off to 17" wheels and tires in Janurary, BFG KO A/T's, military tires are good but I do 70/30 onroad/offroad use so I'd rather have a good radial.

[spork2367]

the goodyear military mtr's were 600.00 prior to the war.

[BigKofJustice]

Originally Posted by spork2367

the goodyear military mtr's were 600.00 prior to the war.

The MTR's I don't know about. MT's were 289-320$ a tire from places like Jim Lynch. Given the H1-hummer "tax" that was around before the H2 came out, some tire shops and dealers see you coming a mile away and double the price or worse.

I went a tire shop last week pricing installation of BFG Goodrich A/T's on 17" OE hutchingson one piece rims and one shop wanted tires + 1000$ because they were "large tires" and it was on a hummer. Should have told them I had a Suburban diesel.

4 Wheel parts wanted 400$ giving the "large" tires excuse.

Costco/American Tire? 20-30$ more then the cost of tires. Oh and free balancing every 3000 miles in the case of American tire.

I can understand if they were dealing with two piece wheels and run flats and misc stuff. The dealer charges 800$ to mount and balance the 2 pieces for a reason but one piece wheels? Anyways, that's off topic.

[reverhart]

We get our tires changed and balanced here in Socal (Fontana) 40 MTRS, and 39.5 BFG Race tires on real beadlocks for 20 bucks each--worst I've paid is 25-50 each at a regular tire place

[ron b]

my tires aren't huge (37's) but the local tire place charges about $15 a tire...it would be a bit more with the 2 piece but I'd assemble them myself then take them in to be balanced.

rb

[actionpaintball]

I see lots of people have never done a two piece HMMWV tire, runflat insert (magnesium or Hutchinson) and wheel before...The civilian equivalent often carries a heavy 80-$100 per unit mount and balance fee…not to mention if the combo is CTIS equipped.

[spork2367]

Originally Posted by actionpaintball

I see lots of people have never done a two piece HMMWV tire, runflat insert (magnesium or Hutchinson) and wheel before...The civilian equivalent often carries a heavy 80-$100 per unit mount and balance fee…not to mention if the combo is CTIS equipped.

two things...why would you have someone else mount a tire that you can mount in your driveway...the only reason i have tires mounted is b/c i don't have a tire machine. with a two piece rim, you don't need one...they ought to charge you an arm and a leg just for being lazy.
also, the best way to balance them is with a dynamic balancing medium like the ceramic balls, or the sand like stuff. but if you mounted the tires yourself, and just wanted them balanced it would probably cost much much less than 80-100 dollars. i wish you lived closer, i'd mount them for you for a a mere 40.00...

[BigKofJustice]

Originally Posted by spork2367

two things...why would you have someone else mount a tire that you can mount in your driveway...the only reason i have tires mounted is b/c i don't have a tire machine. with a two piece rim, you don't need one...they ought to charge you an arm and a leg just for being lazy.
also, the best way to balance them is with a dynamic balancing medium like the ceramic balls, or the sand like stuff. but if you mounted the tires yourself, and just wanted them balanced it would probably cost much much less than 80-100 dollars. i wish you lived closer, i'd mount them for you for a a mere 40.00...

The problem with the dynamic mediums is they usually gum up the H1 CTIS system. No CTIS then it's no problem. The larger bb ball sized stuff might be ok, but in this case it may be better to self mount the tires then take them someplace to get balanced after they are mounted.

[4Mogger]

I was thinking of using dynamic balancing media in my Hutchinsons. All that would be needed is a filter to prevent the media from getting sucked back into the CTIS line. Either a filter on the beadlock or a filter inline within the CTIS line. Only problem there is that I could see the media clogging the line during airdown--not a big issue since a quick reversal would blow it out.
Right now I am leaning toward vulcanizing a simple screen type filter to the Hutchinson beadlock. Since I would most likely be driving while airing up or down, this would be virtually impossible to clog.

[actionpaintball]

Originally Posted by spork2367

i wish you lived closer, i'd mount them for you for a a mere 40.00...

HA! I mount my own...and have my own COATS rim clamp machine and balancer. But- if I had someone who knew what they are doing locally-I actually would let them mount and balance them for $40.00.

I think the best option is to statically balance them and get them close and use equal powder. I have even gone as far as scribing my two piece wheels and balancing the wheel prior to mounting the tire. HMMWV wheels are a weird bird and it sometimes takes trial and error...and sometimes a little magic or sacrificing a chicken,