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Old 08-15-2009, 11:14 PM   #11
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Re: Hauling horses with v-10?

Out of curiosity, what kind of trailer and how many horses do you haul?
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Old 08-16-2009, 10:39 AM   #12
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Re:

Quote:
Originally Posted by Bronco_hauler
I've heard a number of theories re: the detune, but I'm not sure which, if any, are accurate. The most logical to me is that the van's engine bay is too cramped to deal with the heat generated by the higher HP and torque.

FWIW, I think the numbers you found are for the F-series.

Here's what I found for 2009 6.0L E-series specs
6.0L V8 Turbo Diesel 305HP @ 4250rpm, 420lb-ft @ 3250rpm


Herb
I think the 305HP/420lb-ft are the specs for the V10.

My reference for the 6.0 lists 235HP@3300 and 440lb-ft@2000. Way down from the P/U's.

Mike
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Old 08-17-2009, 09:16 AM   #13
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Re: Hauling horses with v-10?

Mike is right according to a web site I checked. The V-10 is detuned in the van as well.

V-10
pickups - 362 hp and 457 torque
vans - 305 hp and 420 torque
Van gets a 16% drop in hp and 9% in torque.

6.0 Diesel
pickups - 325 hp and 550 torque
vans - 235 hp and 440 torque
Van gets a 28% drop in hp and 20% in torque

I'm not sure why the diesel gets so detuned compared to the V-10. Could be a heat issue?

Chevy detunes the Duramax diesel in their vans as well.
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Old 08-17-2009, 10:09 AM   #14
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Re: Hauling horses with v-10?

The 6.0 in the van isn't so much derated, as the one in the pickup's is tuned for more power. The 235/440 ratings are the same as the IH Navistar ratings for the same engine in their trucks, and they make the engines.

The van does have a problem getting rid of heat from that packed engine compartment. So, they couldn't use the p/u tuning in the van. And:

- The van has relatively low sales volume
- It costs a bunch to retune the van's 6.0
- They couldn't add much horsepower before the heat issue became significant
- So, use the IH tuning for free

Compared to the p/u's, the van 6.0 doesn't have big reliability issues. P/U's stretch headbolts and blow headgaskets - not issues I hear about or want on my van.

Sorry for rambling.

Mike
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Old 08-19-2009, 08:39 AM   #15
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Re: Hauling horses with v-10?

My 02 V10 is in first gear doing 25 when I pull a Jeep over the mountain passes on I 70 thru Colorado. A gas engine is no where near as good a pulling motor as any turbo diesel. The turbo engine compensates for altitude and you maintain full power. A gas engine looses a lot of power and just screams it's way up long hills. I hate mine for pulling compaired to my last truck and it had the worlds worst turbo diesel in it. 97 chevy 6.8 TD. It blew the doors off of my V10 when pulling but the newest V10's are suposed to be better. I'd look for a diesel if you pull mountains above 4000' but then again it's hard to find these vans and you may have to just buy what you can find a deal on. I do like every thing else about the V10 and it is a great gas engine.
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