your right rcz numbers are sport on, i was there. Just 339 on a mustang is a little hard to swallow esp. without a pully or flywheel , long tubes etc...

304whp on Mustang Dyno

K&N drop in filters
Berk Test Pipes
HKS Exhaust


DAN

flywheel frees up HP?

Damn, that is pretty impressive. I didnt even know the RSX was turboed from the factory.

yes , around 5 -6 hp ish, but allowes to rev quicker.

YouTube - JWT Clutch & Flywheel Install and Dyno on 370Z

they dont, i think he meant he couldnt keep up with the WRX stock turbo

WRX > RSX-S period.

Me, Chuck, EsFourteen, BlackNismo, all made simialr numbers on the Mustang Dyno at performance motorsports when we all had simialar mods. Alot of people say there dyno reads high, but when they bring there car to other shops with different dyno's they always run very similar numbers.

What was your baseline?

thanks man! :tup:

Answers to this question are not going to give a clear picture unless the responses are isolated to one type of dynamometer using one specific correction factor (preferably SAE as STD tends to overcompensate on NA cars) and the vehicles are all dynoed in the same gear.

For example, some MT's dyno in 4th and others in 5th -- that affects the final numbers, at least on a dynojet. the AT will almost always be dynoed in 4th.

Also, many people like to report STD numbers, because they tend to be higher.

Finally, peak numbers can be misleading -- the Z has a tendency to show a spike in power as you approach fuel cut.

Even then, with everything done exactly the same way, expect some variance...

Numbers will be all over the place on load bearing dynos -- some Mustang dynamometers break hearts, others dont.

As far as peak power goes, Z's with some sort of intake, CBE, TP/HFC's, and tune will generally see between 300 and 310 on a dynojet. A bit more with LTH and pulleys. No clear difference between AT and MT.

got 299 before the tune on Dyno-jet.. got the tune done on a dynodynamics and made another 20whp.

What type of alternate dyno's did they run on? That definitely seems quite high for a real mustang dyno, especially when the highest N/A dyno runs are only around 340rwhp on dynojets.

:tup: I had the Flashpro for my S2k and it made a huge difference. i gained 20 whp in the midrange.

I dynoed 288 whp with a 18" res FI TDX. Soon I will have the dynom for LTH, pulleys and gen 3s

One was a dyno dynamics. And what ever Vinny Ten Racing has, I forget. As for the guys asking about a baseline... I dont have one. Sorry.

Got them from Japan... cost more or less around that range..

Ah, gotcha. I wasn't knocking your results by the way, I hope I can put that kind of power down N/A some day! Maybe VVEL tuning will make that easier.

Very broad statement LOL

What do you call "similar numbers" and "similar mods"..??

I'd be surprised with similar mods that you're dyno'ing the same as a Nismo.!

Why not? The only advantage you hold with your "Nismo" at this point is a suspect adjust to the factory to VVEL. Which is just that, a suspicion. No proof, the only reason a nismo makes more power "Stock" than a regular 370 is because it has a freer flowing exhaust and a mild tune. But its still called "stock" lol...

Similar mods as in Black Nismo had an Injen Intake and I had Stillen. From what I heard from my tuner the Nismo is just a different engine tune and of course exhaust. But once you download UpRev they all kind of become the same. And similar numbers are like, I made 339whp and chuck made 342whp. Esfourteen I believe mad the same or 1-2hp less. We all had CAI CBE some kind of TP/HFC and a Tune.

Look, I love the guys at performance, but the dyno reads high, I don't know if they do it on purpose or not. You need to stop stressing that your numbers were made on a mustang dyno because the majority of mustang dynos read LOWER than dynojets and you will just confuse people who are unfamiliar. Our cars made 340whp, but so would every Z on this board with the similar modifications. Theres no magic fuel/unicorn blood additives on Long Island.

These threads are basically useless because this is not the only dyno that will read abnormal, high or low. All that matters is delta, with basic bolt ons (intake, exhaust, hfc or test pipes) plus a tune, you can expect ~40hp increase over whatever your car made baseline. I would go so far as to say adding in a lightened flywheel and underdrive pulley you could get close to +50whp over YOUR baseline. /endthread

Well look at Black Nismo. After his TT install he dynoed close to 490 wheel. I saw on another thread that he took the car to VTR and dynoed like 496. What dyno does VTR use? Cause it pretty much matched the one at Performance.

Forget dyno talk and numbers. Dyno's are different. Numbers will be different. All seem to be within a certain range anyways. None of these numbers are going to matter on the street. The driver makes the car.

If you want a real comparison, then runs it down a drag strip and look at your trap speed, who ever is highest is making the most power. most stock z 's are around 103 to 105 mph, im @ 114.5

Horsepower Calculator from 1/4 mile ET and Trap Speed - DragTimes.com

VTR uses a dynojet, a dynojet and a mustang with the same results should tell you something. Mustang dynos typically read lower than dynojets, this one doesn't. You can either accept that the dyno reads high or keep trying to explain to everyone else how you made so much power, up to you.

Very true. This is why a lot of the higher hp guys (Supras, Vettes, Porsches, etc) like to compare 60-130 mph numbers. It eliminates some of the traction issues you could get when doing 1/4 mile, 1/8 mile or 0-60 mph testing. I say some traction issues because there's not much you can do if your car puts down upwards of 1000 whp.

+1

A dyno is more of a tool for tuning, imo.

Show-off!!!!! :icon17:

hahaha :driving:

Im actually going to get re-tuned on thursday ill post my dyno

My old 2004 Ford Lighting put down 486/510 on a Dynojet. 11.88 @ 114.49. That was one hell of a ride......in a straight line at least.

that is all 60ft there, probably high 1.5 or low 1.6

but nice run!

I just took a good look at a bone stock Nismo dyno -- they DEFINITELY have more than just CBE and fuel/spark -- it must have different VVEL tune as well.

Regular Z's need a tune, CBE, and TP's to catch up to the bone stock Nismos.

That difference has gotta be all due the VVEL.

Dammit. C'mon GTM -- bring out that VVEL controller already! :stirthepot:

Oh and whoever thinks they're putting down 330-340 NA... yeah... that's an awfully optimistic dyno.

Maybe at the crank :icon17:

We need an insider from Nissan to leak the VVEL info to GTM. Can't wait until that is available!

I'm somewhat surprised there's not a Euro "Nismo R" model that has some sort of forced induction from the factory. Maybe in the future? It would be able to obliterate the Cayman S and run with the M3 and still cost less...

Glad to hear that Jordo, saving this argument for the future Nismo bashing threads :p

112.7 best trap. !st runner up to Jnaut. Quickist 7 AT all motor and getting faster.
J naut who tunes your car.

Actually -- slight amendment to that: All those bolt-on's plus a tune will surpass a stock Nismo -- but... the fact that it takes TP's to be in the same ball park suggests that the Nismo just flows a lot a lot more freely than a regular Z, which makes me think the VVEL is the key.

If somebody has a Dynojet drf for a Z with just CBE and tune, please send me the file so I can get a better idea just how far apart they are :tiphat:

I've seen/heard of stock Nismo's in the 295-298 whp range consistently. That mother-effin VVEL!!!!

The Main difference from a numbers standpoint between Mustang and dynojet, is that with Mustang you can change a Value to either make it read higher or lower. Mustang has this power/coast down procedure that u perform several times thats gives you a value. You take those values and then average them out and thats the value you are suppose to use in the Mustang software. Now if you maunually make that value higher or perfrom the power/coastdown procedure wrong and it gives you higher numbers...the dyno will read higher. Same is true with lower values

Now with a dynojet, that number isn't adjustable, that's why its the industry standard and everybody compares them. Now we have both, and they both work great for what they do. If we are talking about a accurate numbers stand point, its no doubt that the dynojet is more accurate. If we are talking about a load control and variable tuning tool, no doubt the mustang is better.


Quick story, we used to do alot of Porsche product testing. Specifically on the 997 Carrera 4. Company was making intakes and exhaust on a already pretty well engineered N/A 3.6 liter. Long story short, is that no matter what this company did they couldn't make any more power with there products. They got everybody involved including current and previous Porsche engineers. Through this process with them being here they had brought all the factory calculated drivetrain loss figures (from Porsche R&D), stating that there was a 13% drivetrain loss on that vehicle. Well with 340BHP, we consistently got 293-296 WHP on over a half dozen Carrera 4's.

So that is one specific instance of the accuracy of dynojets numbers. When you compile that with the 100's if not 1000's of stock NA cars that we have done with the information that is out there, dynojet numbers always seem to be on par with what is expected to see HP at the wheels....

^^^ Very informative! So if I'm reading this correctly, Mustang dyno's may read high, low, or accurately, whereas Dynojet's are more comparable from dyno to dyno...

IIRC, stock 370Z's hit the dynoJet's at around 270-275 whp, which is approximately 19-20% drivetrain loss. That makes sense to me.

Unless you're in the 1000 hp club, and at a dyno day to show off grotesque power numbers, I think it's important to remember that the dyno is ultimately a tool for tuning.

sounds about right, my baseline was 277rwhp, dynojet SAE C.