From: uniquemachine@cybcon.com
Date: Tue Jun 01 2004 - 11:29:49 PDT
I wonder if piston cooling is something that can be added on? Are
there any diesel mechanics out there that are familiar with the
Cummins motors?
Jon
> 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.jp
> g > >
> 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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>
>
>
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