Can you get to 400 without turbo or super-charger

KingDavid

You mean the one dyno with just the intake and the other one with I/H/E?

Not insulting your intelligence or anything but don't be ignorant about what you see. Be proactive and ask questions. Join that site and ask the user whatever you need to know.

On a side note, that tune was backed off as well. The tuner didn't want to push it so there's room for more.

welderz

What I mean is there are a lot of variables between the the two dynos on different days. Such as ambient air temperature and humidity whether or not the car had multiple dyno runs and was heatsoaked and the correction factor on the dyno may have been different between the two days. I still say 90 horsepower is a bogus number for those mods. Here are more realistic numbers MYG37.com Member Dyno Sheets - MyG37 a lot of them are stock dynos except for post 13 and 16. They don't show anywhere near 90 horsepower gains and they have similair although not the same mods. I think those numbers are pretty low but tuning is still somewhat of an unknown on this engine. I bet in a few months when more is known about tuning these engines they will be able to make more horsepower with those same mods. It seems like everybody who posted in his threads on my350z and myg37 believed it but I'm very skeptical of whether or not they're accurate. I hope he really did get 90 horsepower but it seems unbelievable.

KingDavid

But 400 is a bit far fetched now that I think about it, lol.

Crash

Yeah. I think with I/H/E you'll see about 350 crank max until tuning becomes a science for this motor. VVEL is impressive, at the least, but imagining that you can tune out the equivalent to a mild cam, you can hit 400 crank and maybe even with a big cam-type tune, 400whp.

__________________
2002 Corvette Z06 - Totaled
2003 Corvette Z06 50th Anniversary

JoeyD

350 Crank!? That's obsurd...that would be a gain of 18 HP at the crank...intake alone is showing 18 at the wheels.

__________________
When was the last time you did 230MPH in something with 4 seats?

Nismo 370z

^ Do u really think an intake setup is gonna add 18 at the wheels? Lets wait for mass production and independent results before we start eating Stillens #'s. I dont doubt that their intake system performs, im sure it performs well, but im just a bit pesimistic on those claims.

Anyways i also am a member on my350 and guys with VQDE's and Revups all manage somewhere around 250-270whp on average with full bolt ons and their respective tunes. I have seen guys with 270-290 range with cams and head work and the only 300whp + NA ive seen is Adam's from Z1 but he has a fully built 3.5. Now the HR has been showing that it responds better to bolt ons because guys with 07-08 Z's are getting 300whp with a I/E setup. There is a guy with an auto 07 making 320whp with full bolt ons and TS reflash. Now the 3.7 also seems to respond well to bolt ons and im gonna go ahead and guestimate around 300-315whp with I/H/E setups and 320-330 with I/H/E/TP/pullies/tune setups. Now to go higher than that we are gonna need cams but someone needs to crack the VVEL on the intake side first. This is all speculation tho. We are just gonna have to wait and see until more parts come out and more people mod their cars. But i cant wait for that and cant wait to see what GTM, Technosqare, Top Secret, Amuse, and all the other compaines come up with. I hope that the 3.7 gets the same aftermarket support like the VQ35 did but seeing how compaines are going bankrupt and the value of the american dollar dropping, parts are gonna be harder to come by and more expensive...

KingDavid

Oh my god...I just posted this link a few pages up. They make ~350whp with I/H/E and a tuned reflash...

Final Dyno Numbers - MY350Z.COM Forums

JoeyD

^Yes, I really do. Stillen has been around for a long time, they have no reason to fudge numbers or out right lie, they service a niche market. My point was merely that 350 Crank HP was an absurdly low estimate for the mods listed, it would be a gain of only 18HP for I/H/E. Also, I would be weary of drawing parallels from the 35DE/HR to the 37VHR they act completely different regarding mods, as you yourself said. I'll stick by what I said earlier in this thread.

-CAI
-Header Back Exhaust
-Injectors
-Ignition (like the HKS DLI)
-Pulleys
-Aggressive Tune

Should Yield over 400 Crank or Near 350RWHP

__________________
When was the last time you did 230MPH in something with 4 seats?

MightyBobo

Are you insane? You think you're going to pick up about 70HP to the wheels on intake and a header back? Keep dreaming my man.

-First, injectors - why? What for? You cant tell me the stockers are being pushed that far to their limit.
-Ignition - why? The stock system should work just fine with those mods as they are minimal.
-Pulleys - going to be MINIMAL gain seen from these.

This isnt Need for Speed: Underground here, dude. I bet people will be lucky to get maybe 310-320 to the wheels with a TOP QUALITY I/H/E setup and tune. Either way, you'll just be disappointed if you want to play the numbers game on this car, and drag it to a Mustang Dyno...which is where you should rightfully go for a tune, anyway.

KingDavid

Son...On a mustang dyno, Final Dyno Numbers - MY350Z.COM Forums

~350whp...On a mustang dyno with I/H/E and a reflash...VQ37VHR. From ~260whp bone stock to ~350whp with room to make a more aggressive map. That's ~90whp from 3 mods. Hard to believe but the proof is there.

How many times do I have to post that link? Is something wrong with the dyno? Are the numbers off?

JoeyD

Your posts are about as abrasive as they are wrong. Thanks dude, I can tell the difference between reality and video games. People like you are what is wrong with the forums, you come on here and play the Internet tough guy, but I guarantee you you won't talk like that to me, or anyone else, when we are standing right in front of you. I doubt if you have read any of the findings from G37s (which is a much better comparison than the 350Z) but they support my estimations fairly closely.

Apparently you can't tell the difference from one engine to another. If you knew anything about cars you would also know that hotter spark (ignition) will yield power even without any supporting mods. It results in a better more efficient burn. Pulleys may be a small gain, but that's how you make power slowly through an intelligent selection of upgrades. Injectors are for good measure, the other mods will result in a leaned AF ratio; better injectors provide a margin of safety rather than your assumption of it. Anyway, I said 400 Crank HP in both posts. 400 Crank with a 22% drive-train loss is right in the 330-340 RWHP neighborhood. So, it would appear to me you have no idea how Crank and RW horsepower interrelate. Maybe you should read more and post less.

__________________
When was the last time you did 230MPH in something with 4 seats?

MightyBobo

Just giving you a little dose of reality. I'm sorry you're getting so hurt over them. If you think I wont call you out in person, go ahead and try it. Ive heard BS responses to power claims, 1/4th times, and mods done plenty of times. Ive called them out everytime. But I prefer to do it in an intelligent way, rather than simply call the person a moron or a liar to their face.

Sorry, but I HAD a car that put down these numbers, and more, on a Mustang Dyno. I know what it takes to reach these power levels. I/H/E + tune wont do it. I'm sorry, but this is real life. Go out and do it yourself if you think you can actually do it.

The other mods will result in a leaned AF-ratio - but, hey, he got it tuned - so wheres the problem? Once again, I ask, are the injectors THAT strained? As far as not understanding RWHP versus Crank, who cares about crank HP? I was talking WHP the whole time.

You go right ahead and read "reported" dyno gains and assume everything just keeps adding up so simply, that you're going to pick up 70HP at the crank with basic mods. Sure, 400 crank translates to 340-350 WHP...on a Dynojet dyno, maybe. NOT a Mustang Dyno.

You know what, I dont even know why I mention all this stuff in here - why do we even say anything RCZ? Lets let the bench-racers get their mods, spend the cash, and just be disappointed. Let them go to the dyno, get a tune, and come back with their heads hanging low wondering, "why oh why, did I not get 350 WHP on a Mustang dyno? THE PEOPLE ON THE MESSAGE BOARD SAID THEY DID IT! IT MUST BE TRUE!"

shumby

cute kitten time

__________________
Originally Posted by SAM@GTM
Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living .
Sam

MightyBobo

Bravo, it was about time for a cute kitten wasn't it?

RCZ

dont think we needed to pull out the kittens just yet haha.

Good to know about the underdrive pulley, thanks for the info.