Battle of the heavy weights

Hannibal wrote:
boat engines gas and diesel would never make it.

Boat engines are always going up hill and never get to cost down the other side. Of the engines we are talk about, which ones do duty in boats???

That is right a hand full of 7.3 PS made it to boats and thousand and thousand for B series Cummins. My boat has two 4BT150's Cummins. The same as the 6 cylinder short changed by 2 jugs.

These engines run hour after hour at 200 RPM below max rated RPM with an allowance of a certain time period every 8 hours to be ran at full rated RPM. I believe mine are 1 hour in 8, but it has been a while since I read the manual on that.

Wonder why Duramax's and Powerstroke's are not common in marine use? Not enough cast iron and to much aluminum? High cost to tool the aluminum parts as cast iron. No aluminum heads on Cummins engines.

I-6's will not win races with like HP V8's. But for years most of the high HP modded engines were Cummins. I watched Lenny's Cummins at Dyno-Mite Diesel on the rollers put down just under 900HP and 1400+ TQ, with sparks come off the rollers. And that was way back in the summer of 2005.

Same day my factory rated 235hp/460tq at the crank did this at the rear wheels. After this run I changed turbo's and fix the throttle not opening all the way. And this is a mild bomb with time box and stage 1 injectors. It is around 325/650 now times 1.14-1.17 for crank readings.
http://myplace.frontier.com/~goedmonds/id19.html

Why do they not run them on the dyno first, so we can see what they brought to the test.

That's it, no more road test until each truck is dyno'd at close to what we walk in and buy!

Chris