The V10 we run is amazing.
Our new OBR "Euro 8" controller takes care of all engine systems, automatically optimizing engine temperature, fuel pressure and air/fuel ratio for varying conditions - outside air temperature, air filter flow, etc. During the 1000, our oil temp stayed right at 220 and water at 190 for the entire race - navigators never touched a fan switch. We got 3.1 - 3.6 mpg because the motor runs in closed loop off oxygen sensors. The OBR uses an algorithm to ease into an "overlapping" open loop if the sensors fail gradually. In the unlikely event of an oil pressure drop below X value if a cog belt gets thrown or the truck is upside down, the engine shuts off automatically, long before damage can occur. The crank runs a 52 tooth tone wheel that will permit the engine to start and run on just the crank sensor, not the crank and cam sensor together, so that gives us tremendous redundancy. With our latest heads and the new ECU and intake we're getting 980 hp. The best thing is that because we have two extra cylinders, the motor doesn't have to be stroked to get 512 cubic inches. All the reciprocating parts in the valve train are small and light and piston skirts are long, so the parts are not stressed + we use a special two stage air filter that can hold 30 lbs of dirt and still flow over 1000 cfm with 99.9% efficiency. Bottom line: we've been getting 5000 - 6000 race miles between rebuilds - all in a package that weighs around 500 lbs. dressed. And it builds power in a linear way, making for great drivability - like a huge electric motor.
This is what 980 hp and 7500+ rev limit can do pushing a brick through the air:
980 Horsepower is also why we never got stuck in the silt at the 1000 this year:
As far as big horsepower being an advantage, I'm not sure that it was on this year's 1000 course - except for in the silt, of course!!
This year's course was pretty tight and technical in a lot of sections, favoring buggies, UTV's and lightweight TT's set up to be low and nimble. I could only open it up all the way a few times - in the silt, along the beach and on some dirt roads. Other than that, I was just using 1/4 throttle.
A La Paz run would be different.