cusdaddy

The 280hp VQ in the G35c is now 275hp under the new SAE standards and the 298hp VQ in the G35c is now 293hp under them as well.

Comparing the 300hp VQ in the 06 350Z (~293-295hp), it looks like it the 07 Z using the HR engine gets a ~10hp and 8 ft/lb torque gain.

Not bad, but nothing to get terribly excited over if you have an '06. A few of the improvements in the vq35hr are already present in the "rev-up" engine like the vvt on exhaust.

Getting a less restrictive intake and MREV2 for the "rev-up" engine should give the rev-up owners the same or slightly more power than the HR motor.

BaTMan_4

iTrader: (12)

Ugly hood...nice numbers (tq. gains)

bboypuertoroc

iTrader: (4)

OK... but then it's not stock. Give those same (or similar in this case) parts to a HR and it'll put it right back over the revup.

The bigger picture here (to me) is the internals and the twin-intake/throttle body design. I can only imagine how this is going to positively effect the FI crowd. Will stop here because now it gets into speculation.

cusdaddy

I doubt you will see the same results on the HR. The big difference between the HR and rev-up is that they added a much less restrictive dual intake design on the HR. Many of the other HR mods already exist in the "rev-up". One of the best areas to get HP gains on the Z is induction, which the plenum spacer and mrev2 address much like the new intake design of the HR address in stock form as well.

I like the HR engine, but I'd much rather have a few invisible mods on the "rev-up", make the same power and not have to deal with that hideous hood bulge.

diwun67

iTrader: (13)

i wonder what kind of intake systems the aftermarket so going to come up with. Dual CAI? lol Oooooh or even better dual pop chargers

bboypuertoroc

iTrader: (4)

^ That's far from the big difference... it's one of them, but not the "big" one. We won't know until someone gets their grubby little paws on one and starts messing with it.

And where do you get "many of the HR mods already exist on the rev-up"? Let's see here... dual intake/throttle bodies, TRUE dual exhaust, equal length (or just about) headers, longer rods, 10.6:1 compression, out-revs revup by 500 rpms, new final drive, hell, the block itself is redesigned... must I continue?

350zQ45a

Didn't take long for all the haters to rush in. This sounds very similar to when information hit on the 06 and the haters rushed out.

Nissan is giving you a 80% new engine that will be much smoother and more jdm/german in its performance, and you still complain.

I for one will be glad to get rid of my VQ, the one that feels like it is going to grenade past 6,000 rpm.

You all want the world, but you're not willing to pay for it. You get what you pay for. The Z is still the only car of its kind for the money, and is continually being improved for the better.

Just because YOU don't want it, or maybe YOU got bought a model before, so it doesn't make sense to upgrade.. YOU should stop hating and enjoy the changes.

Please go read the internal briefing on the HR and be informed.

350zQ45a

You know JWT is on the case. They had one of the first 07 G sedans in their hands I believe as early as the summer.

trentor

one thing i don't think has been mentioned is there's a good chance it'll have a true dual exhaust along with completely reworked exhaust valves. that'll help out quite a bit if so. the new G35 sedan has this, so i'm sure the Z will

bboypuertoroc

iTrader: (4)

I just said it's gonna have a true dual. Forgot to mention the valves though.

trentor

your post wasn't there when i started typing. i walked away for a few minutes and came back to finish before i hit send.

bboypuertoroc

iTrader: (4)

So what?

Tony (it was a 29 min difference...)

ZlleH

iTrader: (7)

As much as I dislike hating too much, I think this is a discussion board. It's here to give different opinions. Just because we aren't feeling the look of the new hood does not mean we hate the car. Just because we think gaining 10hp or 10tq is not a big deal doesn't mean we hate the car.

This would be a very boring forum if we had 40,000 users (or whatever this forum is up to now) all agreeing on the same thing.

spf4000

It think this will be one of those engines you must try to see the difference/benefits compared to the previous rev-up and non-rev-up engines. I wonder if they made any improvments to the flywheel since this engine is supposedly smoother than the previous engines? Part of the heavy feel of the previous engines is due to the massive 38 lb flywheel that has twin dampeners to deaden the vibration of the engine. If the engine is smoother, they could probably lighten the mass of the flywheel giving the engine a more responsive feel.

Does anyone know if they made such a change?

Mid117

iTrader: (11)

So if it has dual intakes, and true-dual exhaust, is it safe to say its pretty maxed out? Unless you go F/I ??

sq40

iTrader: (4)

The 07 will make the '06 a truley Collectable Z.

Mid117

iTrader: (11)

Hahahaha I have an 06, so I guess I'm special

rmatic09

iTrader: (4)

Anyway to replace the 06 hood with an 07? I think the hood is awesome?

Bannon

+1111111
Giving a terse lecture, & demand others share his P.O.V. ("YOU should stop hating and enjoy the changes.") sounds like the real hater

350zQ45a

All I am getting at is there is negativity surrounding these releases. Usually this dies off completly. The headlights in 06 were a good example. Rev-up is a good example. All the extra weight the 06s were flamed for, is an example.

If you want to criticize the hood, by all means go ahead. That is subjective matter of personal choice.

My comments were only directed towards the engine. I think Nissan has done a nice job, and if you read the internal briefing, I feel most would agree.

Overall Nissan has done a nice job with the Z33. I would love for it to be something more then it is.

I see Nissan continue to address issues with this car, and I think they should be praised. I remember reading a comparison between the RX8 where the mag favored the RX8 mainly due to the engine being more exciting (whatever that may mean)

Nissan could have ran out the Z33 with the revup engine. The current G coupe is not receiving the new HR motor. So when I see people complaining about the power difference, I think they are failing to understand what Nissan is trying to and imo accomplishing