12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

why does my truck start soooo good? seriously..

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  #11  
Old 03-17-2010, 08:14 PM
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Originally Posted by Dr. Evil
Been telling you Ford guys for a long time what truck is better - not many of you listen though...
 
  #12  
Old 03-17-2010, 09:02 PM
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Originally Posted by 12valvetater
Timing is a little low. Bump the timing up and starting will become harder and mileage will go up.
Are you kidding me? Thats why it starts so easily?
 
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Old 03-17-2010, 09:14 PM
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The closer to TDC the injection starts the easier starting becomes because the fuel is injected at a high temp.
 
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Old 03-17-2010, 10:58 PM
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challenged three ps owners to the test
cold start showdown
95 f250
97 f350
99 f350
against my 91 f350 with a 3.9 and no heat grids
no takers on that one
btw that was in florida

ran across two guys trying to sweet talk a ps with either (not)
told them i had just what they needed to get it running but i didn't have it with me
it was at the shop
they wanted to know what it was
and i told them a cummins motor!!!!!!!!
not happy campers?
 
  #15  
Old 03-18-2010, 05:23 AM
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my truck will out start the 02 powerstroke we have at my work and it being 30 degrees cooler on mine!
 
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Old 03-18-2010, 06:59 AM
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How bad do u think my timing has slipped with it starting this easily? I want to bump the timing 16* but need to find help and somebody with a kit.

As far as being cold blooded, I've always been umder the impression that 12v's were VERY cold blooded
 
  #17  
Old 03-19-2010, 03:42 PM
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Originally Posted by 85_305
Oh and the mileage of these Cummins is supposed to be the best too (though in my psd I got 20mpg city and I'm getting 11mpg city and 19.3mpg highway in my cummins.. think there are some things wrong with it)
.
It could be your driving style; or a difference in gear ratios?

I get about 18 mpg, on average, on mine. All city with about 1/4 freeway driving. Although, most times the freeway traffic is crawling at 2-45 mph on the way back home. The sticker under the hood says I have 3.5 drive ratio.

11 mpg in the city does sound low, though. Unless you're heavy on the accelerator and braking.
 
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Old 03-19-2010, 04:22 PM
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pull the timing up it wont start that much harder and it will run better and if you do alot of city driving mpg go up a little bit
 
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Old 03-19-2010, 06:53 PM
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there is a 99 7.3l p.o.s ps around here and i beat him with my truck... all i know is he has stacks.. and his plate says "99psd"
 
  #20  
Old 03-19-2010, 10:30 PM
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Originally Posted by Threesixty
It could be your driving style; or a difference in gear ratios?

I get about 18 mpg, on average, on mine. All city with about 1/4 freeway driving. Although, most times the freeway traffic is crawling at 2-45 mph on the way back home. The sticker under the hood says I have 3.5 drive ratio.

11 mpg in the city does sound low, though. Unless you're heavy on the accelerator and braking.
I have the 3.55 gears too. I drive very conservatively for the most part, much easier than when I would romp on my psd 7.3 and getting 18+mpg city.. I've never seen below 15mpg in my psd in city driving, and that was with a greaseball nasty 7lb k&n airfilter and stock exhaust on it.

Originally Posted by wes-cummins
pull the timing up it wont start that much harder and it will run better and if you do alot of city driving mpg go up a little bit
Thanks for the input. Just gotta find somebody to help me now

Originally Posted by monster12valve
there is a 99 7.3l p.o.s ps around here and i beat him with my truck... all i know is he has stacks.. and his plate says "99psd"
Excellent. I hope to be killing 6.0's when I get my fuel plate in tomorrow
 


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