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60 series Detroit question
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Farmin' Fireman
Posted 7/3/2010 16:55 (#1259268)
Subject: 60 series Detroit question



C KS
have a 430hp/470hp Detroit in a 9200 IH the (470 only works on cruise). Any good reason why I shouldn't have it set to 470hp constant? Like to compensate a little for a 10 speed going up hills.
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dt4020
Posted 7/3/2010 17:04 (#1259275 - in reply to #1259268)
Subject: Re: 60 series Detroit question


Fairbury, NE (Southeast)
nope go for it. Won't be as noticeable as you think, but will help some. What are you running for rear ratio? We have a 4.10 and a 3.70 set at 430. The 4.10 set at 470 does a bit better.
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tommyw-5088
Posted 7/3/2010 18:09 (#1259327 - in reply to #1259275)
Subject: Re: 60 series Detroit question


Central Texas
It might take a setting above 470 , i would not be worried at 470 .

The later series 60"s are 515 h.p.

I dont have access to the software to set the hard h.p. settings , but the fellow that sets it up will know .
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eddiedry
Posted 7/3/2010 18:37 (#1259355 - in reply to #1259327)
Subject: Re: 60 series Detroit question



Wheatley, Arkansas
And IMO the later 60 series at 515 hp and 14 liter are dogs compared to the 12.7's @ 500 hp on both power and fuel economy. All the 14L's I've been around, ours included, sound like a jet engine idling.
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wheat1
Posted 7/3/2010 21:20 (#1259518 - in reply to #1259355)
Subject: Re: 60 series Detroit question


NE Colorado
My 12.7 at 500 is the best truck engine I have run. No, it doesn't have the low end torque of the big Cats but it has plenty and routinely runs a mile per gallon better than the Cats.
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canuckdeere2
Posted 7/3/2010 21:25 (#1259525 - in reply to #1259268)
Subject: RE: 60 series Detroit question


When you got the computer on just get it set at 500. We run a 9200 with 4.56 gears and 18 speed pulling 140000 lbs in Ontario and it will flatout pull. It will run along with our 600 hp volvos that run 3.90 with 18 speeds. My quess would be that you could run a 12.7 out to 515 with no issues.
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tommyw-5088
Posted 7/3/2010 21:56 (#1259553 - in reply to #1259355)
Subject: Re: 60 series Detroit question


Central Texas
eddiedry - 7/3/2010 18:37

And IMO the later 60 series at 515 hp and 14 liter are dogs compared to the 12.7's @ 500 hp on both power and fuel economy. All the 14L's I've been around, ours included, sound like a jet engine idling.


I dont remember when the sn # break was , but most of the 14 L"s are egr , where alot of the 12.7"s are not egr .

Egr did not help the engine -imo .

I think the size was increased to compensate for the EGR .

Thank the govt.
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clevepreach
Posted 7/4/2010 08:27 (#1259864 - in reply to #1259268)
Subject: RE: 60 series Detroit question



I ran one of those set ups for awhile. IMO there is no difference in the hp from cruise to foot throttle. While Detroit claims a difference I strongly believe it is just a sales gimmick. I tried hard to find a situation where I could feel/see the hp difference. It pulled the same hills with the same load in the same way - foot throttle or cruise made no difference. When you get the computer hooked up just have the tech turn it to the max hp available for your engine and make that hp available all the time. Then, and only then, you will be able to tell a difference. Mileage may even increase due to the engine not having to work as hard and you won't have to downshift as much. Having to downshift on a hill is a real "fuel consumer."
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bsf
Posted 7/4/2010 13:35 (#1260204 - in reply to #1259864)
Subject: Re: 60 series Detroit question


nwks
just something to think about going to 500 hp will shorten engine life 50,000 miles i have two that are enhanced 425 and two that are 435/500 and yes the power is nice but they may not last quite as long
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bsf
Posted 7/4/2010 13:52 (#1260217 - in reply to #1260204)
Subject: Re: 60 series Detroit question


nwks
the way i understand it, you have 435 at 1800 and the 470 at 21 or 2200 i think that all diff is when on the cruise the gov is raised and im sure if i dont understand this im sure i will be told on here how it is

but i dont know who runs there trucks this fast
i tell my help that 1300 rpm is where to shift at make the torque pull the load

so if you only get the added hp between 1800 and 2100...who runs 1800+ on the cruise? so with that maybe someone on here can explain this cause what i stated earlier dont make any sence now.

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