There drag radials , not slicks.
they have increable traction at 20 lb air preasure.
Must tell you first gear is fast, 2 nd gear is wicked aceleration. ( i call it the gear of punishment ) it gets to 90 km so fast it hard to shift the MM and not hit the limiter at 8100. it just leaves the comption eating your dust,
Now for the bad news with the 4.08 gears. fuel consumption is atleast 20 % more or worse if you put your foot into it.

we need this new mani to come out so we can break 350whp. that much power out of a v6 would be great!

factoring in drivetrain loss (~13%) that would put us at ~395.5hp at the crank. thats 996 gt3 numbers there

damm this thread its really helpful for me :) thanks guys for post your mods and numbers. Now I have to search how I can tune my car here in Puerto Rico.... I don't know anyone that tune this cars :(

Had a bad day on the Dyno couldn't get the Uprev tune to take on My 2013 370z (sport) but these are the Mods I have : Stillen G3 CAI - Berk Test Pipes - Stillen CBE / Living in the NYC area if that makes a difference when Tuning.

Looking to make at least 300 whp - Do you think I will make the list???

PS What's the deal with the Glasspacks

I'm thinking definitely you can, or at least close to it

Oh yeah, at least 300 without a tune

Glass packs are like really nice resonators, they'll give you a deeper exhaust note

what gas are you going to use??? 91oct, 93oct??

Just found this thread and am a little reluctant to post my numbers. Just had it dynoed on Saturday at the Ohio G Club get together at IPS Motorsports. Cost was $50 for three pulls on a DynoJet.

Here are the numbers...

288.45 HP
240.07 TQ

All pulls were in 4th gear and I was wishing for higher numbers :mad:. I was told that I could probably squeeze 20 more HP with an Uprev tune. Sorry, but I never got a baseline for comparison.

Mods are in my signature.

Man i think those numbers are good for the mods that you have.

Hate to be a debbie downer, but even with up rev i think you'll maybe pull 8-10whp out of an Uprev tune with your existing mods not 20. Just dont want your hopes to be shot down. So you'll hang out right under 300. 296-299 but still great for the money you've spent!

In colder temps you may even pull better numbers then that.

NOOOOOOO :crying::crying:! Just kidding...

I'd be happy being close to 300 at the wheels. I was a little skeptical when they told me an extra 20, but I'd take a little more. However, I don't know if the extra HP is worth the $500 they would charge for the UpRev tune.

The tune is absolutely worth it. It's not all about peak power. You gain a lot of power under the curve. If you get a tune and re-dyno in cooler temperatures, you'll be well over 300 whp.

2011 G37X Coupe-UPREV
298WHP -230WHTRQ. Mustang dyno.
Gen3's and Exoticspeed CBE, N/A

Stillen STG2 457WHP 330WTRQ,

Because all drivers are equal when drag racing and tire setup.. suspension.. have nothing to do with it also. just pure HP.

i can see why you believe that 1/4 times are not misleading at all.

ET is driver dependent, but trap speeds are a pretty good measure of power and they aren't subject to manipulation like dynos.

so I can put on 2 spares on the back and run the same trap times as someone with Michelin PSS?

or even if i cut my springs..?

Or when I have a passenger and a 500lb audio setup?

Speed, not times. And who in their right mind runs the 1/4 with a passenger?

I run the 1/4 with a passenger in my STi for fun loool!!!

STi VS Evo X on Vimeo

I miss my STi :p

i understand speed

traction changes trap speed
weight changes trap speed
gas quality changes trap speed
altitude changes trap speed
temperature changes trap speed
having to correct the wheel slightly changes trap speed
wheel hop changes trap speed
having to turn off my damn wipers in a panic cus of wheel hop changes trap speed
seeing the guy next to you run <10 and you giving up changes trap speed

Some of those do have an effect. Your post before the one I quoted above was a bunch of unlikely and extreme examples, and not really worth much of a response.

You are correct, some of the things you mentioned do have an effect on traps to some degree. Traction/wheelhop is really to only one to be concerned with. Gas quality, temp and altitude would effect dyno numbers to the same degree as trap speeds. Your last two are asinine.

You're correct in pointing out that trap speed is not an absolute, and it can be affected by outside factors. So can dyno numbers. Dynos can be made to show you pretty much whatever number you want. The only way to get an absolutely correct hp reading would be an engine dyno in a controlled environment. Any other method has drawbacks.

Trap speed is very commonly used to calculate HP. The formula for calculating hp from trap speeds is:
hp = (mph / 215.39)3.3135 x weight (lbs)

This page has a pretty good breakdown of the math involved, if you're curious. Shamelessly stolen from a 300GT/Stealth site. Stealth 316 - Formulas for 1/4 mile ET & mph vs. hp & wgt

280hp 226tq
Dynojet
2.5" true dual CBE
My 2.5" CAI, stock post MAF tubes
Rpf1 18x10.5, 285 HTR Zlll's
No tune
Base run and running a little rich

Next will be long tube headers, post MAF tubes, and still no tune if AFR is still rich. Tune will be later.

agreed. the point was more that someone said 1/4 times are a better indicator of power than Dyno's.

when its really not.

TBH a place like Z1 is a good place to compare power. They dyno so many Z's all the time and its a Dynojet. Theres no configuring etc. Temps and all that matter, but when you host a dyno day and run 40 cars back to back.. its a good comparison. better than 1/4 times where each setup and driver is different.

I honestly think people here get hung up on the numbers. They look at a peak number and feel good or bad when they need to be looking at the before and after. Get a baseline, mod and tune the car, and go back for an "after" number in as close to the same conditions as possible. You'll never be exact, but you can get close. It's the same thing with traps. You can get close.

Ive been saying that in alot of dyno threads.

but that being said. Mikes car is seriously fast..
and he drives fast...
and it handles amazing

Riding with him is fun as hell! Except if your 2theextreme

I just did all those for hp...304, 310, and 318 when my dyno read 280. So it can't be to accurate.

What was your trap speed?

Going from the top time for a stock car in the 1/4 times thread (12.938@108.31) and the curb weight of a base sport (3232lbs), the LRT calculator for getting hp from mph and weight spits out 331 hp. The other two methods are described in the article as being less accurate. That's why I posted the specific formula for the one that was closest- hp = (mph / 215.39)3.3135 x weight (lbs)

106.5 and that was stock air box so I guess 275hp back then.

So just a cat back?

The formula feeds you crank hp, so you would need to add back in the drivetrain losses to your numbers.. I checked it against times in the 1/4 mile thread and it was close.

CBE wheels and weight.

I thought we were all showing SAE which is why my numbers are lower, but here is STD. My SAE numbers are in my sig.

*** Mods ***
Weather: 86f and 30% humidity
FI CBE 18"
Stillen G3
MD ART
UpRev

http://www.the370z.com/members/mag_b...t-dyno-std.jpg

Just got it Dyno the numbers came out lower then I wanted, feel it should have been higher. The day was overcast and high humidity 300 whp and 275 torque
Mods; Stillen G3 CAI / Berk Test Pipes / Stillen CBE
http://www.the370z.com/members/madur...img-1519-1.jpg

How much will Stillen Longtube Intakes/Stillen Headers/Stillen HFC/F.I. CBE/Stillen Pulley/UpRev/Dyno Tune put down?

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Stillen headers are shorties and make no power. They're a waste of labor. Either long tubes or stock manifolds if you want power.

Stillen stated that with their headers+hfc combo added with thier pulley and exhaust you should achieve 320-340whp with a decent tuner. I already have a full cbe and gen 3 longtube intake......I would add an uprev tune.

Think its possible?

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They are the only ones to have success with their headers.

As in their personal car? No one else?

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Some people here have tried them. The only people who have shown a power gain with shorty headers are the same people selling the headers.

No tune? I wouldn't expect that much you got without a tune. With a tune its probably a little low.

One person I've seen if you think under 5 hp and tq is worth it.

Under 5hp and a lot of labor costs.