New trucks and EGT's

All of 'em

Moderators: Greenleaf, BC847, Richie O, MUDDY

New trucks and EGT's

Postby spencerdiesel » Sun Dec 20, 2015 6:17 pm

On other forums, I've seen guys with factory trucks state they've seen anywhere from 1350 to 1500 plus (loaded of course)..........if this is true, what alloys are modern pistons made of?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1.75 turn, timing bumped 3/32"
Muffler delete
spencerdiesel
14mm rotor
 
Posts: 991
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC

Re: New trucks and EGT's

Postby PToombs » Sun Dec 20, 2015 6:24 pm

Not sure what trucks you mean. I know the new dodges run a lot hotter than ours do, engine temps up to 230 or so, and EGTs hotter because of the emission crap on them.
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11129
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!

Re: New trucks and EGT's

Postby spencerdiesel » Sun Dec 20, 2015 6:26 pm

Sorry that was a little vague :lol: Commonrail dodges primarily. So what sustained temps have you heard of with them?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1.75 turn, timing bumped 3/32"
Muffler delete
spencerdiesel
14mm rotor
 
Posts: 991
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
Top

Re: New trucks and EGT's

Postby PToombs » Sun Dec 20, 2015 6:35 pm

IIRC about what you posted, not 1st hand from anybody in person though.
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11129
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!
Top

Re: New trucks and EGT's

Postby spencerdiesel » Sun Dec 20, 2015 7:23 pm

O ok. Know if anyones ever tested the waters of > 1250 sustained on 12v's? I know it's stupid to risk experimentation with that but I get curious occasionally.
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1.75 turn, timing bumped 3/32"
Muffler delete
spencerdiesel
14mm rotor
 
Posts: 991
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
Top

Re: New trucks and EGT's

Postby spencerdiesel » Sun Dec 20, 2015 9:58 pm

By that I mean Cummins inc. tests. If something was actually deformed or melted @ 1300 or so in testing, thus the 1250 standard....?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1.75 turn, timing bumped 3/32"
Muffler delete
spencerdiesel
14mm rotor
 
Posts: 991
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
Top

Re: New trucks and EGT's

Postby DMan1198 » Sun Dec 20, 2015 10:42 pm

The new cr stuff is rated to about 1400*. I've held 1900* for bursts with my 6.7 when I still had the stock turbo. She still runs fine, but with the new chargers I've had on I don't get so hot anymore
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
Jaeger: 12 ram 3500. Lifted, exhausted, and fed an excessive quantity of air
DMan1198
14mm rotor
 
Posts: 2156
Joined: Sat Aug 10, 2013 6:26 am
Location: Slave Lake, Alberta
Top

Re: New trucks and EGT's

Postby Tacoclaw » Mon Dec 21, 2015 9:17 am

I doubt they're made of any better materials, I think they just have better control of the timing. On our trucks when the EGTs are at 1200 then the cylinder temp is also at a certain temp. They're tied hand-in hand with our timing which, while variable, is still set to RPMs.


CR trucks can vary their timing to any number of variables, so even though their EGTs are 1200 their cylinder temps could be any range of temps.
1990 W250 4x4
Rattles, growls, whistles, and whines.
User avatar
Tacoclaw
14mm rotor
 
Posts: 4090
Joined: Wed Mar 11, 2009 7:50 am
Location: Cheshire, OH
Top

Re: New trucks and EGT's

Postby spencerdiesel » Mon Dec 21, 2015 6:01 pm

Thanks for the #'s Dman. That would make some major sense, I knew them computers did more than just make my brain hurt :lol:

Any 1st genners with a lot of timing still hold 1250 continuous with no issues?

Are our exh. valves sodium filled?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1.75 turn, timing bumped 3/32"
Muffler delete
spencerdiesel
14mm rotor
 
Posts: 991
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
Top

Re: New trucks and EGT's

Postby DMan1198 » Mon Dec 21, 2015 6:10 pm

They are not
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
Jaeger: 12 ram 3500. Lifted, exhausted, and fed an excessive quantity of air
DMan1198
14mm rotor
 
Posts: 2156
Joined: Sat Aug 10, 2013 6:26 am
Location: Slave Lake, Alberta
Top

Re: New trucks and EGT's

Postby spencerdiesel » Mon Dec 21, 2015 6:25 pm

Thanks.
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1.75 turn, timing bumped 3/32"
Muffler delete
spencerdiesel
14mm rotor
 
Posts: 991
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
Top


Return to Other diesels

Who is online

Users browsing this forum: No registered users and 1 guest