The annerversary edition Z and the Track model pick up the rpms to 7k, I know everyone know it also gets a boost in power to 300hp. How they did it at least one way was to install continously variable valve timing control system on the exhaust cam, other models still only on the intake cam. But did you know the anniversay get brembo brakes as well? I am bummed

 

Oh by the way while it picks up hp it losses 17ft of torque

 

sorry, but i broke out in laughter when i read this. What are they thinking!

 

They are thinking that a cam with longer duration that widens the powerband and continues making power up high is more desirable in a track car.

They're right.

I'd gladly trade a little low-end torque for a wider powerband at high RPM.

 

esp. with the abundance of low-end torque already on tap - that's why I love the effect all of the airflow mods have on this car - they give you that extra punch up top where you need it while tracking...

 

They were thinking that hp sells cars.....they are willing to sacrafice tq for $$$$ .......go figure

 

that's a bad tradeoff IMO... torque is what makes the Z so fun to drive every day, and different from the rest of the japanese "sports" cars in the market today

 

also... it'd be interesting to see if performance gains are really felt in 0-60, and 1/4 mile... true nissna is probably going for a full "track" car experience, but imo, it's these two stats that sell to the mass market... looks like C&D will have to get their hands on it and work their 0-60 magic

btw - do you guys know if the 298 hp rating on the '05 G's suffer
a reduction in torque too?

 

Yes, the '05 G35 6MT coupe gets an 18 hp increase to 298 hp but loses torque down to 260, a loss of 10 lbs./ft. The '05 Sedan 6MT also gets bumped from 260 hp (although we know these numbers are undderated and should be much closer to the 280 hp of the coupe) up to 298 hp but suffers no reduction in torque. Well at least on paper. What will really be interesting is too see some stock dynos and the area under the curve.

 

Just get the technosquare reflash and raise your redline to 7200....and keep your torque.

 

i'm hearing some rumors that it could be a different revision of the VQ with different exhaust cams...

it could also have something to do with the variable timing control unit that nismo has, to advance the timing more than just +/- 10 degrees like stock (nismo one is 15-20)... that might be how they squeezed out the extra hp, but losing torque is bad..

hmmmm... the 7k redline is easy.. thats just ecu reflashing.. but do you think they reinforced the internals???

 

AHHH we need torque!!!!

 

Cheston --

It's the Nismo S1 engine.

Currently that appears to be different from the regular VQ35DE in these ways:

- Nismo connecting rod bolts
- Nismo intake tube
- Nismo air filter
- Nismo S1 Cams
- Nismo VTC gears
- VTC added to exhaust cam
- Raised fuel cutoff
- Updated air/fuel map


DrVolkl --

The difference between this engine and just raising the rev limiter to 7200 is that this engine will actually make power between 6400-7200. The stock engine with stock cams will not. The torque curve drops off significantly.

 

So this engine should make the Z quicker in acceleration even with the loss of the torque?

 

Yes it should accelerate faster.

 

and the connecting rod bolts will make sure that the engine will not break at 7000+ rpm range compare to the stock one. Nice engine

cheers,

richie

 

Are you sure its the S1 cams. They are very aggresive.

Pulled this from Z1's website. "The Spec 1 setup features inlet cam specs of 276 degrees duration, and .433 " lift. The exhaust cam is 256 degrees duration with .413" of lift."

 

yowza, that car will have a very cool idle with those kinda cams

 

good point. the literature I've seen (poorly translated from japanese) says S1 cams, but that could be wrong, I suppose. They do seem rather excessive. I suspect that the increased intake cam modulation from the new VTC sprocket could make up for a lot of the overlap at idle and broaden the power curve. Only time will tell.

Most of that stuff can be upgraded on our existing engines. Nismo sells an S1 kit for ~$8000 in Japan. The only part I'm unsure of is the exhaust side VTC. I hope that can be retrofitted.

 

I'll donate $30 at least for retrofitment testing. Anyone else wanna get in on that?