Re: IH 274 opinion

Posted by RodInNS on January 31, 2007 at 06:01:17 from (142.177.98.126):

In Reply to: Re: IH 274 opinion posted by Hugh MacKay on January 31, 2007 at 02:59:26:

Hugh,

Wouldn't you say that the trucking industry has followed the smae path, more or less? They do get long life out of the engines, but their power to weight ratio has grown considerably in the last 30 years too. I mean, 20 years ago 350-400 was big power out of an NTC-855 Cummins, and now they're taking the N14's (same displacement) to 500-600. M11's are common where NTC's used to be used. They're getting 400 from an M11, whereas the L10 never went much above 300. Used to be if you wanted much more than 400 horse you'd be going to the big KTA-1150. You won't find too much of that displacement on the road today.
I do agree though that they are getting the long life from them, and a lot of that is from running at 1600 rpm, but also better oils, tighter tolerances, and tighter engine controls.

Rod

Replies:

• Re: IH 274 opinion Hugh MacKay again 08:46:56 01/31/07 (0)
• Re: IH 274 opinion Hugh MacKay 08:41:55 01/31/07 (2)
  • Re: IH 274 opinion RodInNS 11:02:39 01/31/07 (1)
    • Re: IH 274 opinion Hugh Mackay 17:16:00 01/31/07 (0)

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