Help with engine questions
02-07-2009, 07:46 AM
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Help with engine questions I know this is waaaaaaaaaaaaaaaaay off topic, but I know there are some regulars around here that can help me out with my question.
Why is there a pretty significant power difference between the:
Chevrolet HD 2500 with the 6.0L ~360hp
Suburban 2500 with the 6.0L ~330 hp
They are both mated to the same transmission, I am trying to figure out what the deal is. . . . .
Why is there a pretty significant power difference between the:
Chevrolet HD 2500 with the 6.0L ~360hp
Suburban 2500 with the 6.0L ~330 hp
They are both mated to the same transmission, I am trying to figure out what the deal is. . . . .
02-07-2009, 08:26 AM
#2
Most likely, detuning. As the Suburban is more of a people hauller than a work type truck. The same can be said about the Tahoe and Yukon, why does the Yukon get more power out of the supposed same engine as the Tahoe? This is an interesting question, and one I don't fully understand the reasoning behind. But my best guess is detuning! Do you have engine codes, if the codes are different than that would explain a lot. As then there is obviuosly dfferent internals.
02-07-2009, 03:42 PM
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my truck has the dished pistons. the one with the flat pistons is higher compression and more hp, but doesnt work out so well with forced induction. theres a vortec 6.0 and a vortec max 6.0. i just have to deal with less hp and use lower octane gas.
02-07-2009, 07:52 PM
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You are right, the 2009 sub is rated at 352 now:
THe HD truck states Interestingly enough the 1/2 ton now offers an all aluminum block with 366hp
The Vortec 6.0L standard in three-quarter-ton models pumps out a prodigious 352 horsepower and 382 lb.-ft. of torque.
Vortec 6.0L V8 engine (HD) features:
* Thundering 360 hp @ 5600 rpm (322 hp @ 4400 rpm in 3500HD Big Dooley models)
* 380 lb.-ft. of torque @ 4200 rpm
* Thundering 360 hp @ 5600 rpm (322 hp @ 4400 rpm in 3500HD Big Dooley models)
* 380 lb.-ft. of torque @ 4200 rpm
02-07-2009, 10:35 PM
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