Highest hp 370z NA??
 

My tuner was curious and I couldn't really think of anything over 325 or so, but a friend said hes seen around 340. Can anyone chime in?

Pretty pointless since some dynos read so much higher than others

So many variables

I'm not trying to get technical about it I'm just asking for highest recorded numbers. I know there's variables :)

There have been claims of people doing 340-350whp, but very little proof (dyno sheets).

Usually those are the people who go to shops with high reading dynos.

Don't worry, someone who got tuned at Church's will come along pretty soon and shut this thread DOWN. :p

I bet the Doran race car has the most. Motec ECU, 350 heads, dry sump, etc.

:tiphat::ughdance:

Might be better if you asked people for their stock numbers at the same shop along with the tuned numbers

Without insanely optimistic values, if we're talking dynojet and SAE correction (STD tends to inflate on NA cars and there's many fudge factors on load bearing dynos), I'd say around 315-325.

That's with EVERYTHING. Full exhaust, lightened pulleys, tune, intake, reasonably nice weather, etc.

Z's with the more basic bolt-on's + tune will be in the 300-310 ballpark on a dynojet, SAE corrected.

Anything much over 330 would raise my eyebrow (and even THAT is really high).

Although... Nismos may dyno a bit higher. Still trying to confirm whether that's an artifact of there being few dynos and all in 5th gear (tends to read more torquey than 4th) or just different VVEL tuning, as the other changes can be accounted for.

Definitely. Then look at % improvement from baseline rather than raw values to get more easily comparable estimates. Also, run conditions need to be close (e.g., similar air temps, similar humidity) to make meaningful comparisons, even with SAE correction.

They have a dynojet (I think) and yet they do seem to have a reputation for finding rather high values relative to other dynojets... not sure what to make of that.

304 SAE full bolts ons base line 260.4
12.42@114.37
7 AT.

Yea I think I got just under 350 hp at Church's. Lol.

Glokwork just had his car tuned and gained 30 whp. Think he says he is at 335whp I think.

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Thanks wow

What is the typical % quoted for Z drivetrain loss?

Between 16.5 and 17.5%, going by alledged bhp and dynojet measured whp with SAE corrrection (higher whp typically found with STD). Lower loss value is typically associated w 5th vs. 4th gear pull.

So... about 17% on the average.

Eyebrow raised.

i put down 335, where the dyno averaged for baseline 270-280

you gotta remember people only give there best runs... my drop to as low as 330-334.7 so what does that tell you?

it was at performance motorsports in long-island

love to see more NA power but i dont think there are any economical cost options

I put down 334whp dynoed in Dallas. 5500 serious mustang dyno. AWDtuning in Dallas. 61 degrees.

This might be a some what valid question for NA cars but I don't believe the loss is consistant once you go to FI. I believe that there is a certain amount of upfront drive train you have to overcome no matter what and then some percentage additional beyond that depending on power level.

These are my numbers, just HP since I don't have the charts directly infront of me:

- Stock - 262whp (Dynojet) - 90 degrees
- Full bolt-ons (Stillen CBE, Berk HFCs and G3 Intake) - 299whp (DynoJet) - 80ish degrees
- Full bolt-ons (Stillen CBE, Berk HFCs and G3 Intake) - 299whp (Mustang) - 70ish degrees
- Full mods and tun - 314whp (Mustang) - 70ish degrees

I dyno'd 342 at Z1's dyno when I got my tune. At Znationals, it was in the 320s during the dyno competition on a hot day with heavier wheels, but still was the highest NA Z there, by a good margin that day.

also, there is already a thread on this subject

So would maximum brake hp be just shy of 400?

I just want to be a hair faster than my neighbors L46 stroker, the I could sleep at night >: >(

this subject will never die since anyone can change any of multiple variables to putup big numbers. every dyno is different and some people may even skew their numbers for an array of reasons.

like mike even said different wheels will change it. if someone wanted to make higher numbers just wait for ideal conditions, lighter wheels, manipulate the loads and variables in the dyno software, etc... and bam! high HP numbers.

Not if you know how tuning works and you sit next to the tuner as he adjusts on the rollers.

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its a fact that you can make the numbers higher if you really want to. thats all i'm saying.

After the tune Did it feel like you really gain that much power ?

That's what I do, by moving the decimal point.

My Z makes 3165 hp. Not bad for NA. It runs a 1.27 sec quarter mile (I move that decimal point too, just the other way).

:facepalm:

Agree

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The cars pulls alot harder. I'll say that much.

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Well I know Z1 has a package that provides 340 bhp w/ their modified intake manifold, headers and test pipes. I believe this is not including intakes and cat back exhaust. And even then you could install come pulleys to give you that little extra power. Idk what it would yield but I'm sure it would be pretty good NA with a tune.

Isn't that how they ended up with the 342 number they're claiming?

"In conjunction with a Stillen Gen 3 Intake and a quality high flowing exhaust system the Z1 VQ37VHR 400HP Package can produce 340+ rear wheel horsepower on a DynoJet on 93 octane fuel when properly tuned with Uprev Engine Management. We have not included the intake, exhaust, or engine management systems in this package because many people have already purchased these items. We recommend installation and tuning through Z1 Motorsports."

that 340 number is with intakes and exhaust that just inst provided with the kit.

also i still dont believe that number to be true. that would be like my car gaining 20WHP from headers & manifold addition. with the whole rate of diminishing returns of mod HP i dont see a 20WHP jump.

Nobody else got numbers that high with their headers. Z1 makes good stuff, but they seem to have a very "marketing-friendly" dyno.

Over 9000!!!!!!!! Anyone do a pull on a Dyno Dynamics?

yea i've noticed lol

also when mike said his 342 dropped to 320 when on a different dyno that wasnt Z1's dyno kinda says a bit towards that. dont get me wrong i love their products and amazing customer service. just a big number is all.

Yep. Never trust the guy who sells the parts to tell you how much power it makes. They've got a vested interest in making that number look as good as possible. I'm sure that the Z1 parts make more power than stock or other options. I seriously doubt that it's as high as they claim.

hey if it is power to them but i just dont see it.

i mean headers and plenum added to mine i would love to break 340.....just 20WHP addition with just those seem tough.