From: w7ls (w7ls@blarg.net)
Date: Tue Jun 01 2004 - 10:38:53 PDT
Hi, Dave.
The piston cooling might or might not be a problem, depending on how one drives, I'd guess. There is guy out here that has ugraded several NHC250 engines and not one has gone bad. Maybe if you are pulling heavy loads up huge, long hills it would be more of a concern. A pyrometer might be a good idea, too. Jim
On Tue, Jun 01, 2004 at 6:35am Dave Barbieri <Dave.Barbieri@marshall.tstc.edu> wrote:
> Adding a turbo will generate a LOT of fun for a short period of time.
> <grin> The concerns about piston cooling are valid. The normally
> aspirated NHC 250 does NOT come with piston cooling jets; adding a turbo
> WILL generate more combustion heat and pressure than the pistons can
> deal with. This engine can be fitted with a supercharger, boosting
> power to 265hp. The supercharged version was a popular powerplant in
> Crown busses in the late 60's/early 70's.
>
> This Thursday, we're heading to San Antonio to pick up a 5T wrecker.
> Everybody in the program is pretty excited - we have some definite use
> for this puppy!! Here's a coupla pics:
>
> http://esbd.tbpc.state.tx.us/surplus/federal/pictures/SD43854003002.jpg
>
> http://esbd.tbpc.state.tx.us/surplus/federal/pictures/SD43854003002-1.jpg
>
> http://esbd.tbpc.state.tx.us/surplus/federal/pictures/SD43854003002-2.jpg
>
>
>
>
> Dave Barbieri
> Diesel Equipment Technology
> (903) 923-3246
> (903) 935-9554 fax
> dave.barbieri@marshall.tstc.edu
>
> >>> w7ls <w7ls@blarg.net> 5/29/2004 2:26:44 PM >>>
> Y'all (er, All y'all. Sorry)
> If anyone is interested in hotrodding their M800 series truck that
> has the standrd NH-250 (I think that is the designation for a non turbo
> 855 small cam 250 Hp Cummins engine that the mil uses), I have the stuff
> to kick it up to 350 Hp. That includes the turbo (for more wind), bigger
> injection pump (more fuel) and bigger injectors (bigger holes for more
> fuel).
> This is working takeout from an engine that spun the main bearings.
> Beyond that, I can't guarantee it. $650 plus shipping from 98019 (kinda
> near Seattle). I'll put it on a small pallet or in boxes, depending. I
> don't know the weight, but it's under 100 pounds. Let me know. Jim
>
>
>
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