how come G35 6MT sedan have 18hp more then regular sedan???
whats the difference???

is it exhaust, computer settings, or hall engine???

because from last car i know the sentra spec v have 10hp more and 10 lb of torqu more from se-r just because of high flow exhaust

 

marketing purposes, The reason it's faster because of its gearing.

 

partially for marketing
notice how it has 10 lb/ft less of toruque
the engine is called the rev-up engine and has a higher redline too
this is all because of a different intake manifold and a different lower collector on the engine

 

what makes you think it is the gearing?
the 03/04 6mt and the 05+ 6mt share the same gear box and final drive ratio..

yet, just like some others have pointed out.. it is the intake manifold redesign + internal strengthening + exhaust valve timing to give the revup engine more upper power. Yet, they are robbed down low (below 5k rpm)

 

Gearing has no effect on engine output (power). BHP (Brake Horsepower) is quoted in manufacturer's specs and is measured at the crankshaft.

A car with 298bhp still has 298bhp regardless of any change in gearing.

 

Dude? What's your deal? Every time one of these 05 vs pre 05 threads comes up, you claim they make no difference. Out of the box, my 05 trapped over 3mph higher in the 1/8th *and* the 1/4 than Cheryl's 04 5AT. Not only that, but stock-to-stock, my car dyno'd almost 30hp higher(peak) at the wheels. Over the curve, it was a huge difference. Granted, that comparison is 6mt versus 5at in addition to revup versus base motors.

I know that plenty of 03/04's have run extremely well. But no matter how much you want to *not* believe it, the revup does in fact make more power, over a larger area. It's not simply marketing.

Just because the revup cars have not necessarily put down better track times is more likely a function of drivers, rather than the cars themselves.

 

I think he is referring to the difference between the sedan and the coupe for any given year. Infiniti specifies a difference of 20+ HP between them. I think we are all OK with design changes in the engine from one year to the next.

 

The 05+ sedan has the same HP/TQ rating as the coupe. 03/04 it was 20 less. He is asking about the 280/280 AT rating versus the 298/270 6MT rating.

The rev-up engine has more aggressive timing which works sort of like the Honda VTEC. That is why you loose some TQ and gain HP.

The 03/04 was underrated and IMO the 05/06 is a little overrated, I am not saying that the 05 wouldn't dyno higher because I bet it would but not much. If you put an 04' 6MT versus an identical 05' 6MT with the same driver on the 1/4 I would bet you the results would be extremely close.

 

I fully agree.

 

this is what i ment to say.

Trey the reason every time i respond the same way because i personally haven't seen stock 05-06 dyno more than 250.

 

I gotta be honest with you man. Last year when you first posted your dyno, I was a bit skeptical because it wasn't a dynojet. Don't get me wrong; I'm not advocating a dynojet over another brand. I just didn't know what to compare it to.

But after you posted your new numbers, and OCG35 posted his, I am definitely impressed. I'm not predisposed to believe in "Factory freaks", but as with any manufacturing process, there will be differences amongst individual units. I don't think your car is necessarily a "freak", but even 5% difference between two cars(definitely within reason), from a base of ~240hp, equals 12hp. Anyway --- I am impressed with your car, but I don't think it is representative of 04 6MT's.

 

camshafts

 

I guess im just having a hard time accepting this.

 

I'm with you on this one brother....

jdm4eva

 

so what is the final verdict, or general consensus...

v-35 engines, for the most part, will produce very similar power ratings/ speed times, regardless of year? so...an 04 mt and 05mt, should be equally matched... 04at 05at, also equally matched?
I agree with ttrank about the ratings, but just want to know if the 04s are equally matched with 05s