Where do the extra horses come from?
 

Question about the hp of a 370Z.

The stock Z has 332hp. The NISMO version adds 18 more for 350hp.

Where is the extra hp coming from? Is the added 18 because the VQ37VHR was tweaked for better performance, the upgraded NISMO exhaust, or a combination of both?

combination of the Nismo cbe and a different ecu tune

has anyone dyno'd stock vs stock+nismo cbe for an expensive comparison?

I heard from another topic the Nismo ecu was slight retarded timing compared to the 370z as far as graphs

I'm pretty sure someone did this already and posted the results on the forum. If I recall correctly the difference in the tunes was trivial, and as suspected the HP gains were simply due to the larger 60mm CBE.

does the extra hp sufficiently compensate for the extra weight?

Probably not, but the body kit is tits!:happydance:

:icon17:

the 2015 kit... godamn! then i look at the price for the front/rear fascia + side skirts and think at this price i might as well double it and get FI

Google says it's from a 'tuned H exhaust system, a muffler and new recalibrated tuning chip'.

I would be curious what's the break down of hp gained by each.

Not that it matters really but I wish the Nismo exhaust was a little less.... well, quiet.

washer mod!









:ugh:

As far as I remember from the tuning section it's all really from the exhaust. The tuning was to reduce lean points, among other minor things, from the less restrictive exhaust rather than any notable increase in power. Remember it adds 18 BHP which is about 14 WHP which is about right for the larger tubing and better H design.

oK.............:confused::confused::confused:

I wish it was a little louder. But I'm not willing to spend any money just for that.:ugh2:

I have noticed that Nismo's tend to dyno a bit higher with the same mods, relative to non-Nismos. Initially I thought this was due to different VVEL tuning, but it seems as though they are not different (or there are as yet unidentified other tables in the ECU to play with).

Now my thought is that this is probably more likely due to noise (random differences dyno to dyno reading) and that some of those non-Nismo dynos were on modded but untuned cars.

I can confirm that the OEM H-pipe and catback is MUCH better than either the OEM non-Nismo or Weldina Nismo Y-piped exhaust.

Wut about S-Tune exhaust? Eh?

What's the difference between HP & Torque in real world driving. The 370z has the same torque as the old one but more horsepower? So where would one experience the difference driving

In a nutshell, torque gets you off the starting line and HP gets you across the finish line.

If your getting the Nismo for more HP your doing it wrong

"Where horsepower determines how fast a vehicle can travel, torque at the wheels determines how quickly that speed can be reached. The greater the torque figure, the faster the acceleration."

HP sells cars, TQ wins races :tup:

Extra horses come from Momma horses...... Just sayin.

lol, none of that is true.
HP=(RPM * T) / 5252

A car with high TQ relative to HP simply means it doesn't rev up as high as should.

How fast a car accerates, after the car has passed 5,252rpm is a funtion of THE AREA UNDER THE CURVE. The curve a function of the rpm ranges as dictated by gearing.

This is why something like a 290hp NSX with much less TQ, destroyes a 370Z in a straight line.

Torque is only useful really for 0-60 times and trucks that need to pull things.
In sports cars where you're in gears 2-6 much more than gear 1, HP is much more important.

Sorry, I wasn't clear.

S-tune = Weldina = Nismo Y-pipe = Crap.

The Nismo "take-off" exhaust with H-pipe is MUCH better in terms of power and quality.

Both sound good, but power aside, I kept getting cracks on the S-tune Y-pipe that needed to be welded... terrible :shakes head:

Eh... not exactly... as something of a rejoinder: "HP will win the race, while TQ puts a smile on yer face" :D

Lol @ tq is only useful for 0-60 times. Really? So after that, tq isn't a factor?

OP, watch this... it can help you understand TQ and HP relation