Injected Performance 370Z dyno video, 258whp DD
 

We had a chance to strap our Nissan 370Z down briefly for some baseline numbers. On our dyno dynamics 'heart breaker' it produced 258whp completely stock. Stay tuned for future developments. :)

Full dyno writeup and HD video

http://www.injectedperformance.com/h...erformance.jpg

http://www.injectedperformance.com/h...-258whp+tq.jpg

heart breaker indeed

Hmm was expecting a little more but Great 1st dyno. The Pearl White looks superb. Thanks for the video. This is the first 370Z dyno video in the US! Good job. :tup:

i thought someone else posted a dyno at like 290 rwhp, I guess they were just blowin smoke

GTM posted 189RWHP (or something like that). This is DEFINITELY a spill down hill.

How many pulls did you do? How high is the elevation in your area?

U mean 289whp. That was done on a dynojet which reads higher. I think 260whp for a bone stock Z is really good on a dyno dynamics. Great job injected. Cant wait to see what u do with it.:tup:

Yes, someone else made close to 290whp on a Dynojet. For anyone not familiar with the Dyno Dynamics, we normally see a 12.5% increase in hp number going from our dyno to a Dynojet. If you use that same 12.5% on our 258whp... 258 * 1.125 = 290

From our blog,
2003 Nonrevup 350Z: 215whp
2006 Revup 350z: 234whp
2009 VQ35HR 370Z: 258whp

Do you have dyno curves of the previous engines? That VQ37 torque curve looks so smooth and broad. It'll be nice to squeeze more out of that engine :-)

this dyno is more in line wth what the G37 is getting.

:ugh2:














































GTM will be "out of business" if that's what they are getting from their Z! :icon17:

All relative?
 

Due to all the differences based on altitude, humidity, temperature etc, software .........dyno device, I tend to look at HP and Torque changes between OEM baseline and improvements (bolt ons etc) and not really the absolute numbers.

Although, the absolute numbers can always be used as a "brag" factor if they are good (note the signature block):stirthepot:

LOL! Yeah, 289... Sorry, I do that a lot! (This is why I do porn and not build rockets)

like i said in the other thread, 260whp is really nice to see on a dyno dynamics!

Are dyno dynamics generally lower than the other dynos?

yep ive ussually seen about 12-13% lower

OK... Then those numbers make sense.

Im not able to see the video?

No, you (along with a majority of car enthusiast) just don't seem to understand how dyno's work ;)

258 whp is great for a Dyno Dynamics aka "The Heart Breaker" :)

G37's and 370Z's make the same numbers... they have the same engine to begin with.

Only lower one I can think of is a Mustang Dyno (iirc).

In terms of output, this is what the typical order usually looks like:

Dynapacks <-- Dynojets <-- Dyno Dynamics <-- Mustang Dyno

Ofcourse, this can always very since calibration might be to one extreme in a few cases.

well nissan says the Z has 2 more HP lol

They must be hiding a JDM sticker somewhere around the engine bay :icon17:

This comes out to 22% drivetrain lose? I always thought the rull of thumb was 15%. Is this because of low TQ or the IRS?

Read post 7, 18, and 20...

Interesting. I'll get a few dyno pulls done at HMS and post the results as soon as mine is broken in.

The AFR's are a whiff rich for N/A. The chart shows mainly in the upper 11's:1, which would be perfect for a boosted port injected engine, but perhaps a tiny bit too rich for N/A. Taking into account E10 we all run, 12.7:1 to 12.3:1 should yield peak torque.

Thanks for posting the video and tidbits!

This Dyno is pointless. Its the only dyno of its kind the puts down such low numbers. Not even a mustang dyno will give numbers like that. There are numerous dynos showing the Z putting down almost 290whp, that is consistant to what the crank 332hp is putting out. If the Z was a 332hp car that only put down 250whp then the Z would 80+ hp to drivetrain loss and that is not the reality.

Man, I love that color.

Great sound!

o but so wrong you are

see the thing is this dyno dynamics and mustang dyno's are 'loaded' dyno
they simulate the weight of having to move the car also!
so when you on a dyno jet and get your 290whp, thats just how much you can make to the wheels
when you make that power on a loaded dyno thats the power you actually HAVE moving the car.
also they are alot better for tuning because they simulate actual load on the motor and drivetrain better, providing more accurate tuning

+1

Both of these are excellent when it comes to tuning. If I could, I would only get tuned on these. It may read lower, but I don't care about numbers; I care about accuracy, consistency and real usable power.

Those 370 numbers are disappointing and I am talking in the relative sense, not the absolute sense.

Where are your numbers for an HR engine (07-08)?

If I remember right, my stock 07 HR 6mt put down 20 HP more than my wife's modded 06 rev-up 6mt - same dyno, same day.

So bottom line here is that the 370 makes only 4 more HP than the HR 350?

Of course your dynos are not done on the same day, so maybe that's it. Maybe the 370 has more drivetrain loss.. ??

Nice dyno vid. you can hear the Nissan DNA. It goes back a loooong way YouTube - 1988 Nissan 300ZX SS on the dyno

Obviously can't be this one. :rolleyes:

http://tbn3.google.com/images?q=tbn:...335_2898_l.jpg

What makes this dyno pointless? People keep on forgetting the main reason behind a dyno is for tuning purposes. Numbers are just numbers. What really matters is how those numbers change within the same dyno during any modifications.

A dyno is only pointless if you're just looking for a "number".

If the 370Z read 310 whp in a dynapack, then read 240 in a mustang dyno, does that make any difference?

One of the better dynos out there for tuning is a dynapack, which just happens to read higher than most dyno's out there.

One of the many reasons why dynapacks are great is because they are very consistent. I have never seen that consistency from any other dyno. Not only that, but the fact that they read off of the hubs really shows how specifics mods affected your cars performance without having other variables such as a change in rotational mass (ie. just happened to get a new set of wheels that are heavier) skewing the effects of engine modifications.

I'm not saying other dynos aren't good for tuning but its great to avoid all those other variables when someone is tuning a car.

Speaking in general and not directing this to anyone... people these days care too much about "numbers", specifically peak numbers, without really understanding what they're really looking at.

why was this test done in 4th gear instead of 5th?

the Z34 should be able to go to 7300rpms at 155mph, 200rpms short of redline.

^^^ Good question. 5th is 1:1.

I could not agree more. If you are really concerned about high dyno queen numbers, go find a high reading dyno. For tuning, as long as you have a baseline and a final number, most any dyno will do the job. How the numbers change before and after modifications on the same dyno is all that matters.

On most 6-speed cars, the difference in numbers between 4th and 5th is negligible, if any. We did test in 5th as compared to 4th on one pull and it was exactly identical. Other cars, not just Nissans, have shown the same thing for us. Using 4th as opposed to 5th goes a little quicker and puts a bit less stress on the engine.

For what it's worth, we were able to achieve similar results yesterday, proving the DD's consistency. We decided to test XXX Racing Fuel's 138 octane oxygenated blend. It was good for a 14whp gain through much of the powerband. Not bad for just adding some gas!

Full story and video on our blog: XXX Racing Fuel gains 14whp on stock 370Z : Injected Performance Blog

http://farm4.static.flickr.com/3385/...e178c4d934.jpg

wow, that's pretty impressive! where can I find out more info on the XXX race gas that you used?