Nismo Camshafts Altima Coupe 2.5

[Nlghtmare]

http://www.leeparts.com/nissan....html

I was told that these would fit "easy" in the 2.5s. If so, how come no one has tried it?

[Hussain]

isnt the install supposed to be a PIA and hella expensive?

[dldjros69]

i want!!!!!!!!!!!!!!!!

how much hp?

[Throckmorton]

http://www.leeparts.com/nissan....html

I was told that these would fit "easy" in the 2.5s. If so, how come no one has tried it?

Why has no one tried it? I'm sure some have tried them.

Let’s look at the description of the cams in the advertisement.

1. Cost. $768.00 plus shipping, plus the cost of installation is a factor.2. No warranty of any kind, non-returnable, voiding factory warranty.3. These cams fit only a limited number and years of cars. Available for 2000-2006 Nissan Sentra SE-R & Spec V With 2.5L Engine.

Model year 2000-2006 2.5 SE-R and Spec V engines were rated as follows:

Compression Ratio: 9.5:1Horsepower : 175 hp at 6000 rpmTorque : 180 lb-ft at 4000 rpm

2007 and up, rated as follows:

Compression ratio: 10.5:1Horsepower: 200 hp @ 6600 rpmTorque: 180 lb-ft @ 5200 rpm

Nissan raised compression by using different pistons, and used a different intake manifold, among other tweeks, to bump the horsepower from 175 to 200 in model year 2007. These changes also changed the torque curve. Why is this important?

Torque is the only thing that a driver feels, and horsepower is just sort of an esoteric measurement in that context. Therefore, horsepower isn't particularly meaningful from a daily driver's perspective, and the two numbers only get friendly at 5252 rpm, where horsepower and torque always come out the same. Do you think that it is a coincidence that the 2007 and up Spec V reaches maximum torque at 5200 rpm? No, because Nissan designed this engine for maximum horsepower, which came at the expense of torque.

From a daily driver’s, not a racer’s perspective, the lower the rpm for maximum torque, the better.

[Zerep]

the normal sentra ser is still rated at 175 i dont know the new compression ratio

[Throckmorton]

the normal sentra ser is still rated at 175 i dont know the new compression ratio

http://www.nissanusa.com/se-r/specifications.html

2009 Nissan Sentra SE-R Specifications

Engine QR25DE – 2.5-liter DOHC 16-valve 4-cylinder engine 177 hp @ 6,000 rpm 172 lb-ft of torque @ 2,800 rpm Compression ratio – 9.6:1 QR25DE – 2.5-liter DOHC 16-valve 4-cylinder engine 200 hp @ 6,600 rpm 180 lb-ft of torque @ 5,200 rpm Compression ratio – 10.5:1

Notice the different torque, at much higher rpm, on the 200hp engine.

[Zerep]

cool the looks like the ser reading of hp and torque were taken at different rpms then the altima but if you would look at them at the same point in the rpm band they would be the same so the altima might be putting out a little bit more then they are telling us

[mrodrig2]

cool the looks like the ser reading of hp and torque were taken at different rpms then the altima but if you would look at them at the same point in the rpm band they would be the same so the altima might be putting out a little bit more then they are telling us

That's not how it works. Max HP and max torque are reported at whatever RPM they happen to occur at. The Sentra having max HP at such-and-such RPM has no relationship to the Altima having whatever HP at that same RPM.

[Zerep]

so whats the difference in the 177hp engine and the 175hp different tune or is nissan pulling our leg for 2hp unless the higher revs allow it to get the extra umhp wonder if we can get an ser ecu and put it on the altima it doesnt seem like a big enough hp increase to be different parts in the engine