Just noticed that the 2007 X is down from 265 to 261.....any reason why?

Legal reasons.

Too many people achieving lift due to the power. Xterras were flipping nose-over-tail.

Nissan had to scale it back for safety and liability reasons.

maybe if we got one of those WRX spoilers to hang on it they could boost the power back up?

the new horsepower rating standard. Its the same power, just referred to differently now.

It’s easy to get that horsepower back – all you need is either a “racing” stripe down the center of the hood or flames on both front fenders.

stickers. stickers add at least 5 hp per

Or adding synthetic grease to the muffler bearings....

what about the tweaking the knuder valve and tightening the johnson rod? Oh and don't forget the flux capacitor right next to the muffler bearings! That's good for another 10 at least?

Swapping out the Japanese OE blinker fluid for the high performance Albanian version.

LOL!

Anybody who races sailboats knows oranges is the fastest color, so paint your X orange to get the extra speed back.

Adding High Performance Horn Fluid helps even out the ride, adds 1.34123 Hp easy. Give or Take 1.34123 HP+/-

For all the Simpsons fans out there....

"SPEED HOLES!!!!" Easily at 10 to 15 MPH

this is the xterra forum to come to for useless info I guess?

well one post was correct and good info..but I'm not gonna say which one.

I'm guessing speed holes or horn fluid.

It was not mine...

Blame GM for the horsepower drop
Automakers can test for horsepower and torque in a variety of ways. SAE J1349 Engine Power Test Code – Spark Ignition and Compression Ignition – Net Power Rating Standard specifies a basis for net engine power rating, and a method for determining net full load engine power with a dynamometer. A dynamometer places a load on the engine and measures the amount of power that the engine can produce against the load.

The current test, which originated in the early '70s and was last reviewed in 1995, allows automakers to claim horsepower and torque figures higher than what most owners will actually experience. The SAE Power Test Code Committee – chaired by David Landcaster, General Motors Corp. engineering group manager – is revising its standard for measuring horsepower and may suggest that automakers have an independent observer verify the numbers they claim for horsepower and torque. The standard will also set a procedure for how to test torque, which is also heavily advertised by car manufacturers.

According to SAE, the revised standard is expected to be written by the end of the year. An SAE advisory committee will then decide whether to adopt the procedure and the use of outside witnesses, such as Underwriters Laboratories Inc., to verify automakers' claims.

Although manufacturers are generally expected to base their horsepower ratings on SAE net power standards, the practice is voluntary and horsepower numbers presented in advertising and brochures aren't always accurate. Jaguar, Hyundai, BMW, Ford and Mazda are among manufacturers that have made exaggerated claims.

And then they go into effect.. thanks again to GM
General Motors has become the first manufacturer to certify an engine's power and torque ratings using a newly adopted SAE standard (J2723), James Queen, GM Vice President, Global Engineering, announced during his keynote address at the SAE World Congress and Exhibition in April 2005. The world's largest automaker plans to certify all of its engines to the voluntary standard, and is encouraging its competitors to do the same. The LS7 engine for the 2006 Chevrolet Corvette Z06 was certified under the new standard this month. The 7.0-L V8 unit produces 505 hp (377 kW) at 6300 rpm and 470 lboft (637 Nom) at 4800 rpm. "The new voluntary SAE power and torque certification procedure ensures fair, accurate ratings for horsepower and torque as it uses third-party certification," said Queen. "SAE technical standards level the playing field, and this certification procedure is just the latest example of the value SAE has offered over the past century." To tout power and torque ratings as "SAE-certified," engine manufacturers must have an SAE qualified witness watch over the entire testing procedure to ensure that it is conducted in conformity to SAE standard J1349. Third-party witnessing is the main provision of J2723. An existing SAE standard, J1349, spells out how the actual testing is to be done. J1349 was updated last year to eliminate some ambiguities that allowed engine makers to cite power and torque ratings higher than the engine's actual capabilities. Engine makers are free to cite power and torque figures drived from testing conducted outside the scope of the SAE standards, but they may not claim the figures are SAE-certifed. "We feel that both the consumer and industry are well served by having accurate, consistent ratings from all manufacturers," said David Lancaster, a Technical Fellow in GM Powertrain and Chairman of the SAE Engine Power Test Code Committee that updated J1349 and wrote J2723. Data from a wide array of parameters (e.g., air:fuel ratio) will be collected during testing conducted to the SAE standards. SAE will create a database and offer it to industry in different packages and at different price points

At least Nissan did not over inflate the HP too much. My understanding that there can be about 4 or 5 HP variance in engines