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Predicting #'s for Z34...

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Old Jan 4, 2008 | 09:48 AM
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Default Predicting #'s for Z34...

We've seen the prototypes running around. We've seen sketches supposedly previewing the next Z design. We've heard of the hundreds of lbs. being shaved off (what I'm most excited about) and the increase in hp/tq numbers from the next 3.7/3.8 power-plant.

I know it's early, but what can we estimate this car will run 0-60, 1/4 mi., trap speed, cornering g's and even Nuhrburing lap times? We can logically assume the next engine will be derived off the same powerplant as the G37 coupe (330 hp, 270 lb/ft, 5.3 0-60, 13.9 @103 mph 1/4 mile, 3717 lbs) or the 3.8 L GT-R motor (w/out turbos). I would think Nissan NA would stay with the G37's engine.

These are my numbers!

341hp (305 @ the wheels)
278 lb/tq (262 dyno)
2815 lbs (3197 lbs now for base 350Z)

0-60 mph - 4.8 sec
1/4 mi - 13.0 @ 114 mph

I wouldn't be surprised, based on the decreased weight, to see the next Z break 12s pretty easily

Last edited by CSTrack; Jan 4, 2008 at 10:14 AM.
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Old Jan 4, 2008 | 09:51 AM
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Originally Posted by CSTrack
We've seen the prototypes running around. We've seen sketches supposedly previewing the next Z design. We've heard of the hundreds of lbs. being shaved off (what I'm most excited about) and the increase in hp/tq numbers from the next 3.7/3.8 power-plant.

I know it's early, but what can we estimate this car will run 0-60, 1/4 mi., trap speed, cornering g's and even Nuhrburing lap times?

These are my numbers!

344 hp (307 @ the wheels)
287 lb/tq (272 dyno)
2815 lbs (3197 lbs now for base 350Z)

0-60 mph - 4.8 sec
1/4 mi - 13.0 @ 118 mph

I wouldn't be surprised based on the decreased weight to see the next Z break 12s pretty easily
This is a self contradiction, as you're ony saying the car will only have a 10.7% drivetrain loss. That is not possible with RWD... so unless you are predicting that the Z34 is going to be FWD, you might want to adjust your estimates.

So you're saying they will shed nearly 300 lbs? I doubt it.

The retardedness of your numbers reflect the quality of the thread you started. Face.
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Old Jan 4, 2008 | 09:53 AM
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118 trap speed.....


ummmmm I don't think so


I'm guessing the Z will be underpowered and overweight based on alot of speculation I've read.

Last edited by jeff91ta; Jan 4, 2008 at 09:55 AM.
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Old Jan 4, 2008 | 12:09 PM
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I'm hoping for 330-350hp with 290-306@ rear wheel, with skid pad 0.98 and 0-60 @ 5.1ps, with 1/4 mile of 13.3 110mph. With a curb side weight of 3100-2850lbs. Similar to a Boxsters weight. With a smoother 6spd shifting tranny setup and lighter pressing heavier duty clucht as in the TT Z32.
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Old Jan 4, 2008 | 01:36 PM
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If we had the current stats of the Z and the current stats of the G37 then we assumed a max of 150 lb. weight reduction over the old Z and the same engine/output as the G37 then we might be able to make an educated guess.

Or we could simply say.... what would a G37s numbers look like if it weighed 150lbs less than the current Z

Okay I looked something up

G37 weight as tested by some magazine... 3,715
350Z weight as tested by some magazine...3,354

Subtract a very hopeful 150lb weight reduction... I just picked this number because you can't expect too much weight reduction because sports cars already have most of the easy fat already trimmed off of them but the 6 inch shorter new model combined with more weight reduction could realistically get 150lbs... right?

guestimated New Z weight 3,200 lbs

Now if you take 500 lbs off of a G37 what kind of performance would you expect?

Last edited by 5iVe; Jan 4, 2008 at 02:46 PM.
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Old Jan 4, 2008 | 02:34 PM
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In my opinion, if the Z34 had the G37 engine even with the same 330hp, and weighed what the base model did back in 03, it would make lots of people happy.
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Old Jan 4, 2008 | 07:08 PM
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Originally Posted by 5iVe

G37 weight as tested by some magazine... 3,715
350Z weight as tested by some magazine...3,354

Subtract a very hopeful 150lb weight reduction... I just picked this number because you can't expect too much weight reduction because sports cars already have most of the easy fat already trimmed off of them but the 6 inch shorter new model combined with more weight reduction could realistically get 150lbs... right?

guestimated New Z weight 3,200 lbs
The base 350Z now weighs under 3,200 lbs (3,197 lbs). The magazine probably tested an enthusiast or touring model, which adds a couple hundred lbs. You can only assume that a shortened wheelbase will deduct at least 150 lbs (from the base), which is why I came up with sub 3,000 lbs estimate. I'm hoping it will be closer to 2,900 lbs but that's just getting greedy .
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Old Jan 4, 2008 | 07:25 PM
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Whats the point of this thread???

All these speculation mean jack.....

Did you notice that people who start these worthless threads have low post counts.

btw, lol at the 118 trap speed. Is there a hidden blower under the hood?

Last edited by yoichi; Jan 4, 2008 at 07:28 PM.
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Old Jan 5, 2008 | 03:18 PM
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Originally Posted by yoichi
Whats the point of this thread???

All these speculation mean jack.....

Did you notice that people who start these worthless threads have low post counts.

btw, lol at the 118 trap speed. Is there a hidden blower under the hood?
I wouldn't say that it's worthless...

If you give it a chance and actually contribute some of your knowledge then we can come up with an educated guess. Which you may not be interested in but there are some of us here that are.

The weight that I listed above for the 350Z was for a NISMO Z. I wouldn't think that would be so much heavier than the base...

Although I would love to see a sub 3000 lb Z... well... that's going to be the sticking point for any good performance estimates. We need a good weight guess.

I wouldn't expect to see any drastic improvements in the G37 engine so assuming that remains constant we just need to guess the weight and then have someone crunch the numbers
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Old Jan 6, 2008 | 04:01 PM
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I don't mind this debate. I think it's worthwhile. This is a discussion forum right? Last I checked, it seems to be one, no?
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Old Jan 6, 2008 | 04:20 PM
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Originally Posted by archspeed
I don't mind this debate. I think it's worthwhile. This is a discussion forum right? Last I checked, it seems to be one, no?
Right on....BTW what model year will the Z34 be introduced
I'll start with the fall of '09... model year 2010.
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Old Jan 7, 2008 | 07:34 AM
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Originally Posted by sluggoZ
Right on....BTW what model year will the Z34 be introduced
I'll start with the fall of '09... model year 2010.
We would only be so fortunate.

There's another post/discussion going into detail about this very topic ("Had a Chat with a Nissan Designer..."

It would be simply fantastic, should the next Z get introduced this year. Some are speculating it might even be shown @ Detroit (Jan. 20). If that's the case, then the Z could even be sold this Fall as an '09 model
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Old Jan 8, 2008 | 12:02 PM
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Ok I'll bite.

3.7L V6
340 HP
280 ft/lbs

or possibly

3.8L V6 (a la 380RS)
350HP
295 ft/lbs

with a curb weight between 3000 and 3100.
I would also peg times at 0-60 in 4.8s and 1/4 mile in 13.1 at 109 mph.

Also, people, this is a forum, we are allowed to have a little fun don't take everything so serious. If this thread is worthless why waste your time posting in it?
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Old Jan 8, 2008 | 06:52 PM
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Originally Posted by bghoward
Ok I'll bite.

3.7L V6
340 HP
280 ft/lbs

or possibly

3.8L V6 (a la 380RS)
350HP
295 ft/lbs

with a curb weight between 3000 and 3100.
I would also peg times at 0-60 in 4.8s and 1/4 mile in 13.1 at 109 mph.

Also, people, this is a forum, we are allowed to have a little fun don't take everything so serious. If this thread is worthless why waste your time posting in it?
I'll add to that a limited production ZTT model with the 3.8TT long block in 2010 / 2011.
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Old Jan 8, 2008 | 09:54 PM
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Originally Posted by bghoward
or possibly

3.8L V6 (a la 380RS)
350HP
295 ft/lbs
I will say this: I've noticed a trend with Nissan, and the 350Z in particular.

They'll come out with a "special edition" engine, for example, the 35th anniversary (2005) models had the RevUp engine, and it cost extra. The next year, the 2006's all had RevUp engine standard. I can't think of another example off the top of my head, maybe someone else can.

So, it's possible that they'll get that nice 3.8L from the 380RS. If they do that, I'm all over it. And if they can get the weight down, even better.
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Old Jan 9, 2008 | 06:30 AM
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I think a 3.8L makes a certain amount of sense (besides 380Z sounds better than 370Z). They have already done the R&D from the VR38, they could throw it in the z minus the turbos and not hand build them like the GTR. From a marketing perspective I think I would be a big success. Oh you can't afford the GTR, just buy the little brother, it's the same car without AWD and turbos!

Anyway, time will tell what is in store for the next gen Z.
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Old Jan 9, 2008 | 07:50 AM
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Originally Posted by mthreat
I will say this: I've noticed a trend with Nissan, and the 350Z in particular.

They'll come out with a "special edition" engine, for example, the 35th anniversary (2005) models had the RevUp engine, and it cost extra. The next year, the 2006's all had RevUp engine standard. I can't think of another example off the top of my head, maybe someone else can.

So, it's possible that they'll get that nice 3.8L from the 380RS. If they do that, I'm all over it. And if they can get the weight down, even better.

I like this thinking.

I took the time to look at the average since the first Z, increases and decreases in the specs...



Model Engine HP TQ lbs Engine % HP % TQ % Weight
240z 2.4 151 146 2355 --- --- --- ---
260z 2.6 162 152 2425 8 7 4 3
280z NA 2.8 140 145 2824 8 -14 -5 15
280z Turbo 2.8 180 203 2900 0 23 29 3
300zx Z31 NA 3 165 174 3163 7 16 18 11
300zx Z31 Turbo 3 205 227 3250 0 13 11 11
300ZX NA 3 222 198 3300 0 26 27 5
300ZX NA 2+2 3 222 198 3550 0 26 27 11
300ZXTT 3 300 283 3450 0 32 20 6
350Z 3.5 287 274 3300 15 23 28 0
350Z 3.5 300 260 3400 15 5 -5 3
350Z 3.5 306 268 3450 15 2 3 2
AVERAGE 3.01 220.00 210.67 3113.92 5.67 13.25 13.08 5.83

If history proves it's self, using the average, the new Z will have …
2009 Z 3.69L ~ 346hp ~ 303tq ~ 3651lbs
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Old Jan 9, 2008 | 08:02 AM
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Originally Posted by bghoward
I think a 3.8L makes a certain amount of sense (besides 380Z sounds better than 370Z). They have already done the R&D from the VR38, they could throw it in the z minus the turbos and not hand build them like the GTR. From a marketing perspective I think I would be a big success. Oh you can't afford the GTR, just buy the little brother, it's the same car without AWD and turbos!

Anyway, time will tell what is in store for the next gen Z.

The 3.8 makes perfect sense to use.

In addition to that:

IF the Z keeps the same size, it NISSAN will need to use less common materials to keep the relative weight or lower it, which drives the profit margin negatively, which means the Z will cost more.

If I were NISSAN I would to this:

Regualr Zs...
1. Lower the body size by 9% using common materials.
a. This lowers the nominal weight to ~ 3100 pounds allowing engine weight increases to compensate for the 3.8L (350hp)
2. Add the 3.8L N/A to all trim levels

RESULT: 8.8:1 weight to power ratio. an improvement over the current 11.4:1 ratio.

Specialty Zs...
1. Keep the previous mentioned reduced body size
2. Use less common (lighter) materials in that body size to reduce weight another 9%.
a. Giving the Z a ~2800lb chassis
3. Two trim options
a. 380Z RS - 3.8L N/A = 8:1 weight to power ratio
b. 380Z RSTT - Add the TT package from the GTR - 400HP = 7:1 ratio.
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Old Jan 9, 2008 | 08:44 AM
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Originally Posted by JCZ33
The 3.8 makes perfect sense to use.
3. Two trim options
a. 380Z RS - 3.8L N/A = 8:1 weight to power ratio
b. 380Z RSTT - Add the TT package from the GTR - 400HP = 7:1 ratio.
First of all adding any kind of turbo to the 350HP 3.8L will be more than 400hp, which means it's starting to compete with the GTR. I find it more likely that we will see a supercharged Z before we would see a turbo.

Remember all of the rumors about cosworth's relationship with nissan in tuning the VR38. I think it's more likely we might see a special edition (track model) with a cosworth tuned car with intake & plenum, maybe cams too, with around 365HP.
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Old Jan 9, 2008 | 09:41 AM
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Originally Posted by bghoward
First of all adding any kind of turbo to the 350HP 3.8L will be more than 400hp, which means it's starting to compete with the GTR. I find it more likely that we will see a supercharged Z before we would see a turbo.
Agreed. Putting the Z near GT-R territory would negate their intentions of having a flagship in the first place.

Like the rumored GT-R (R35) V-Spec, weight and handling will be what differs from the regular Z model and a tuned Nismo version, not HP. The V-Spec will only get a tuned exhaust and I would expect the same for the Z (Nismo exhaust).
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