Can you get to 400 without turbo or super-charger

Crash

I REALLY doubt that those mods gives you 40HP more at the crank...

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

KingDavid

I'm pretty sure no one even dared to think that I/H/E with a tuned AP would net anywhere near 90 whp above stock either. Never know until it's tested and tried...I'd like to see the outcome.

welderz

I haven't been on the g37 forums so I personally don't know but I don't trust that 90 horsepower gain. They were most likely taken on different days considering that headers were installed. That brings up a ton of variables between the 2 dyno runs.

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.

RCZ

Alright, so I really don't want to add to the drama, but MightyBobo is right. Those 3 things (injectors, ignition and pulleys) may get you 3hp. And that's just because the ignition can more effectively start the combustion process and the pulleys free up some mass that is stealing hp. The injectors are pointless. That is complete video game theory (Forza? NFS?) when you are talking about modern day cars...

90WHP out of an N/A 3.7L like the one on the 370Z is impossible on an exhaust, intake and tune. You are not going to point me to one stupid thread because I will point you to 6,000 other ones that say your numbers are bs.
If the motor is turbo, like an EVO or STI, then yeah you can do that, but not without compromising reliability.

Congrats, I'm not even going to go in that thread because its probably a bunch of idiots congratulating him for the super amazing gains. You know dynos can be tweaked to read whatever the hell you want them to read right? Do you believe everything you see on TV too? You own a snuggie dont you?

Find me some more threads that claim 90RWHP gains with a stage 2 car. Please. Really, I want to believe it!

Tune was backed off, wait...so this is a conservative tune that made 90WHP? Oh dear.

Listen guys, you are arguing over something that has no real basis. As much as I would love this to be true..it does not make sense. The parts that were chosen aren't even full-race no-compromise parts and the tune is "backed off." Clearly by reading your rationalization of the mods, I can tell you have the theory down JoeyD, but you need to be a little more skeptic about the results that people post up on the internet.

This is the same subject over and over and over again... I would be very very very happy with a 40RWHP(30RWHP on a mustang) gain on a stage 2 setup, with a very aggressive tune. That might even be fantasy too though...

But hey, in due time we will see which one of us is right, so there's no point on arguing about theory right now. I dynoed baseline at 256whp. If I get an exhaust, intake an a tune and I come back with 346WHP, then I will gladly take back everything I said. Until then, I'm going to get my feet back on the ground and hope for 290-300whp.

KingDavid

Lol, As they come I will. But there's no stage anything. It's a re-TUNED reflash. The maps from COBB aren't on there. But again, ask the guy and the tuner himself. If the proof is there and you question it, ask questions. Don't be so quick to be so skeptical. Just ask. All of those dynos in that other thread are all pre-mapped and untuned. All of them. But if more pop up then so be it. If not, oh well. But it's intake HEADERS and exhaust and a TUNED reflash. So get it and tell us the results. If it's wong, then hey it's wrong, but if it's not then hey, learned something new.

Are you aware at all of the difference between a pre-mapped car vs a custom tuned one? At all? A walk on the other side of the world but K-series motors make a considerable amount power from a pre-mapped K-Pro vs. A tuned K-Pro.

And since you're questioning the integrity (or validity) of respected members info on that site, I'll see if I can drag them over here for you. Maybe even get a video of a dyno run? We'll see.