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Old 01-10-2004, 09:53 PM   #1
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In search of horsepower and big-time TORQUE

I continue to see ads for Motorhomes saying they have 500 horsepower or more....I have also been passed by a few large motorhomes like I am standing still....



I come from a long line of gearheads in my family who have always "souped up" their ride for more performance...



I do not want to make my Skoolie a hotrod, nor do I want to go over 70 mph on the freeways, but I do LOVE the feel of at least 500 pound-feet of torque, and the ease of acceleration that kind of torque provides. Does anyone have a Skoolie with a high performance gas-powered engine, and if so, what comments and/or recommendations can you make for someone to follow?
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Old 01-10-2004, 10:31 PM   #2
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http://www.cummins.com/na/pages/en/p...ingsschool.cfm



Buses with the Cummins ISB 275 have 275 HP but an incredible 660 lb-ft of torque



http://www.cummins.com/na/pdf/en/pro...et/3885388.pdf



The engine is used in school buses, rvs, and fire trucks.
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Old 01-11-2004, 10:28 AM   #3
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Can't remember who but somebody has been using big block Caddy engines in buses....makes a lot of torque...



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Old 01-29-2004, 11:46 PM   #4
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Many of the standard V-8 bus engines have plenty of torque stock. These are heavy duty engine that do not rev very high with 3500 being tops. The easiest way to grab more torque is with camshaft mods. Find a shop that does the grinding and talk with them.
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Old 01-30-2004, 01:06 AM   #5
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Or if you have an old International like you and me the parts you need can be found from Scout enthusiasts.
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Old 01-30-2004, 08:31 PM   #6
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as you increase the horsepower of an engine, you reduce the reliability.



I'd rather have a slower more reliable bus. But that's just me.





A BIG truck diesel would be a fine idea for both tons of power and reliability, but they cost big $$$



WE have a firetruck with 3,500 gallons of water, (about 30 thousand pounds of water) and it'll blow by my bus like i was standing still. Not sure which engine is in it for sure. I know its it's a cummings inline 6.......someone said it's an 11 liter.
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Old 01-31-2004, 02:06 AM   #7
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A guy can't have too much power.

There are some ideas about engines that is very difficult understand or Swallow.

as you increase the horsepower of an engine, you reduce the reliability..

hahahhahhahhhahahhaha. Now that is a crock. Some people must have never been to a race. There are many many races and power contests that would easily contradict that statement. There is not a driving person alive, who would not want lots and lots of power. In some cases, engines with lots of power last 5 times as long as a low power engine. A low power engine is always working at the hardest to do any work. A hi-power engine uses power as needed. Hi power can be many things to many people and loads. A corvette with 500 HP is really fun, and a corvette with 300 HP is fun to drive, but not the same. Yep, I do have 3. About all the buses I have owned, I have changed engines and added more HP. Yep, I have 7. My Crown is getting a 375 HP, BC4, Cummins and the 220 HP Cummins is being removed. There is NO substitution for HP and cubic inches. Any changes to and engine for more power is relative to money and Talent. And those little bitty 4 cylinder Offy engine at the Indianapolis 300 race make about 1600 HP at 10,000 RPM for a long time. The engines are about $225,000... Power limitations are mostly caused by lack of funds...
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Old 01-23-2012, 01:56 PM   #8
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Re: In search of horsepower and big-time TORQUE

There is a thread in the coach section that describes a 675 hp Cummins. Vroom, Vroom.
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Old 01-25-2012, 08:30 PM   #9
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Re: In search of horsepower and big-time TORQUE

Stuff the biggest diesel engine you can fit in there. Depending on the bus you have, try to keep it above 7 litres for good thrust. It may not actually be a hotrod, but will feel like one after coming a stock one.
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