Mil-Spec Builds A One Of A Kind Hummer H1 For The Track

Mil-Spec rebuilt an old HMWWV into a track-focused "race truck". We don't know why.

Mil-Spec Builds A One Of A Kind Hummer H1 For The Track

Mil-Spec has made a one-off, track-focused Hummer H1 that will ruin most race cars.

Last we heard from Mil-Spec, they’d just started making rebuilt H1 Hummers that went from ugly, unnecessary SUVs into beautiful, even more unnecessary luxury off-road vehicles. The Launch Edition, as they’d called it, was powered by a brand new 6.6-L Duramax V8 turbodiesel (the same engine that powers GMC’s heavy-duty trucks) and was capable of putting out 500 hp and 1,000 lb-ft of torque.

Which is a lot of power, but then, the H1 weighed close to 7,000 lbs. You need that much power with that much luxury.

However, before the Launch Edition er, well, launched, there was a test mule version that Mil-Spec used to make sure that the Duramax would actually fit in the chassis. This wasn’t a GM-built H1 Hummer, though--it was a 1987 AM General HMMWV, the actual military version of the Hummer.

via Mil-Spec

This test mule was given the same Duramax engine but mated to a stage 5 Allison 1000 transmission that boosted power to 800 horses and 1,500 lb-ft of torque. Without all the luxuries that went into the Launch Edition, this sort of power was far more noticeable on the HMMWV chassis.


It also gave the Mil-Spec crew the idea to turn it into a “race-truck”. Because reasons.

In order to corner like a racer and not a truck, the entire suspension was rebuilt to the point where the HMMWV sits in an entirely different position. It’s 7 inches lower, much stiffer, and is basically unrecognizable to the original suspension. A set of Wilwood brakes with 6-piston calipers front and back help the HMMWV stop, and some Pirelli P-Zero tires help keep it on the road.

Mil-Spec Builds A One Of A Kind Hummer H1 For The Track
via Mil-Spec

And since it’s a racer, it also gets a lower roll bar, Sparco racing seats, a MOMO race-spec steering wheel, and a powertrain kill switch for when it all goes wrong.

Mil-Spec calls it the Track Titan. Also because reasons.

Unfortunately, Mil-Spec has no plans to make this into a real car. It remains a one-off test-mule-turned-concept-car that they don’t think would really sell. But we think that’s short-sighted. After all, who wouldn’t want a low-down H1 that can outrun a Mustang?


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