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why do they detune the 4runner's engine?

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Old 09-05-2004, 04:07 PM
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Unhappy why do they detune the 4runner's engine?

I was looking at toyota's website and the new 4runner engine they say makes 270 hp. But if you look at the Tundra / Sequia they are making 282hp.
I just don't understand why take the same engine and take it down to 270hp.
Just like with my '03 4runner they say it makes 235hp, but then they have the v6 engine making 245hp. I know that the v8 has a lot more torque then the v6, but it sort of pisses me off that the hp is lower. Does the new (vvt) on the v8 engine make that much difference to bring the hp up 35hp?
Old 09-05-2004, 04:25 PM
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the bigger trucks are allowed to put more emissions out, the smaller trucks arent allowed as much emissions, so they tune it down to fit into parameters
Old 09-06-2004, 12:15 AM
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There are also sometimes reasons like the available transmission or axle needs protected. (So they think...) A good current example is the Cummins deisels in the pickups. That engine can produce a whale of a bunch more power, quite easily. People using after market computers (and even injectors and fuel pumps) to boost the power frequently find that when they pull their trailer they blow up the other drivetrain parts...
Old 09-06-2004, 12:49 AM
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If Toyota is anything like Nissan then their just numbers and mean nothin, the 270hp V8 has the same rating as the Tundra and Sequoias with 282 but Toyota just puts down 270, we will only know if someone dynos the 2 vehicles and the numbers match.

Im willing to bet if their is an actual different then it's something small like a more restrictive exhaust.

Has anyone here ever compared the 190hp Tacoma to the 184hp 3rd Gen V6 4Runner, always wondered why the 4Runner did not just have 190 like the Taco or was it just lower numbers on paper
Old 09-06-2004, 07:57 AM
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Originally Posted by EDGE
Has anyone here ever compared the 190hp Tacoma to the 184hp 3rd Gen V6 4Runner, always wondered why the 4Runner did not just have 190 like the Taco or was it just lower numbers on paper
Seems like I read somewhere it was due to differences in the exhaust or muffler.

Chip in SC
Old 09-06-2004, 08:00 AM
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I've heard the same thing Chip just told us!
Old 09-06-2004, 09:35 AM
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Originally Posted by ipchay61
Seems like I read somewhere it was due to differences in the exhaust or muffler.

Chip in SC
I'd have to agree; all of the Tacomas and V6 Tundras I've heard have a deeper exhaust note than the 4Runners.
Old 09-06-2004, 12:22 PM
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Originally Posted by SuperRunner98
I'd have to agree; all of the Tacomas and V6 Tundras I've heard have a deeper exhaust note than the 4Runners.
I've wondered about this myself. I think the tone of the trd tacos are much better than the 4runners.
Old 09-07-2004, 05:10 AM
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I think Toyota may be fudging the numbers on the 4Runner to make it look like it makes less power (Chev does this). If you look on Toyota's website, the new 4Runner can tow more than the Tundra's


2005 4Runner
Towing capacity [10] (lb.) (2WD/4WD)
V6 models (weight-carrying) 5000/5000
V8 models (weight-distributing) 7300/7000

2005 Tundra
Towing capacity [5] (lb.) (2WD/4WD)
V6 5000
V8 7100/6900

2005 Tundra Double Cab (lb.) (2WD/4WD)
V8 6800/6500

2005 Sequoia
Towing capacity [5] (lbs.) (2WD/4WD)
V8 6,500/6,200
Old 09-07-2004, 12:00 PM
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Originally Posted by SLC Punk
I think Toyota may be fudging the numbers on the 4Runner to make it look like it makes less power (Chev does this). If you look on Toyota's website, the new 4Runner can tow more than the Tundra's


2005 4Runner
Towing capacity [10] (lb.) (2WD/4WD)
V6 models (weight-carrying) 5000/5000
V8 models (weight-distributing) 7300/7000

2005 Tundra
Towing capacity [5] (lb.) (2WD/4WD)
V6 5000
V8 7100/6900

2005 Tundra Double Cab (lb.) (2WD/4WD)
V8 6800/6500

2005 Sequoia
Towing capacity [5] (lbs.) (2WD/4WD)
V8 6,500/6,200
Good observation, however towing capacity is also based on the vehicles weight. The tundra obviously is heavier so it gives up some of the weight to itself than to what it can pull.
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