Nissan 370Z Forum - Can you get to 400 without turbo or super-charger

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- - Can you get to 400 without turbo or super-charger (http://www.the370z.com/engine-drivetrain/2186-can-you-get-400-without-turbo-super-charger.html)

Quote:

Originally Posted by Crash (Post 96161)

Heads/Cam LS2 or LS3 would be freaking sweat in the Z. Even with a mild cam and good heads, you're looking at 450+ to the wheels. Heads/Cam on the LS1 makes 420 to the wheels... The Z would be sick with that kind of power and torque. But I think the LS2 is going to throw the suspension off a bit on the Z. The motor's definitely longer and the weight is about the same.

YouTube - ls2 350z
YouTube - LS2 350z take off

Yeah. I saw a few 350's with LSx motor swaps... But a 370 would be even sweeter.

well the 4.0 v8 in the M3 is making 420hp.
i think we can hit 400.

If you're going to compare apples and oranges, than you might as well through a RST-V8 in the mix, making 400HP N/A at just 2.4 Liters and 500HP with a supercharger. And that motor revs to 10K!

Well if you're going to get that crazy, may as well just go all out for an F1 engine :) Check out these renault vids from their V8 for F1. First one is just revving to 20K rpm, second one is a dyno run up to 18K rpm. The dyno setup looks freaking sweet, they appear to be simulating laps of a real-world track by computer-controlled throttle, gearing, and dyno loading.

The glowing exhaust never gets old :)

Coming from a boosted 350z I can agree with the 'turbo shenanigans" that RCZ speaks of! I penny pinched and paid the price however...get turbo kit over here, fuel management over there, ecu used from forum guy, tuning at a 3rd shop, troubleshooting at a 4th shop - penny pinchin the whole way. Your constantly chasing bugs and fixes and in the end your afraid of going 100% full-bore boostin (which is why you go FI in the first place;)) in fear of the big kaboom!

IMO if you are even considering FI pay the big bucks and have it done right the first time! Go to a local reputable shop that backs up their work and be sure your Z is not the 'guinea pig' project. Buy everything from them and have them install EVERYTHING. Youll pay $12-15k for the whole shebang but your can sleep at night knowing your investment can be enjoyed to its fullest and if something goes wrong you know exactly where to take it to get fixed. Just my .02

With that being said FI is the only route for me...when more kits become available that is:tup:

Quote:

Originally Posted by SnakeBitten (Post 95385)

Big cube motors like a 8.4Ltr Viper or 7Ltr Z06 wont gain 90-100rwhp from i/e/h and tune but a 3.7ltr 370z will? Sadly Im out of the game now but if someone can prove beyond a shadow of a doubt that the 3.7ltr 370z can indeed make 90rwhp that easily I may have to ignore the economy and my own finances and get one at all cost.

Easy way for him to find out if that g37 is making 345rwhp. Hit the 1/4 track and tell us what your trap speed is. Im not the most knowledgable guy here but in the years of me spending at the drags Ive learned the 1/4 mile exposes bs dyno numbers from my experience. I remember a guy that supposedly made 445rwhp on a stock engined DE. I never believed him then I saw him run at the track and his best run he could only muster 113mph flat out lol. He should be easily pulling 118-122mph and on a really good run around 124mph all things being equal or at least in the 118 range consistantly. The dyno said 445rwhp but the 1/4 said NO WAY BUDDY. Dynos are for tuning and 1/4 mile is for proving Ive always said.

I believe phimosis did it.

Quote:

Originally Posted by Phimosis (Post 73519)

http://i84.photobucket.com/albums/k3...t/370zdyno.jpg

Sorry the image quality is low. I snapped this from my iPhone.

Black line: Stock, but with rear muffler section removed.

Red line: Stillen G3 intakes, Stillen headers, Stillen Cats, Stillen exhaust.

Blue line: Stillen parts + Technosquare ECU reflash + dyno time.

In summary: $3,200 in Stillen parts gave a 26 hp increase over stock to bring it up to 328 compared to the original 302.

$700 for ECU reflash and dyno time ($500 for reflash only) gave an extra 15 whp for a total of 343 whp.

In total, it was nearly $5,000 including installation of the parts to gain 40 whp over stock. The throttle response in now extremely precise. The sound is wonderful, the over-rev to 8100 rpm is phenominal. The "Buzzy" engine vibrations that car magazines have been talking about are no worse above 7500 rpm. If anything, it smooths out a little.

One last thought: Lets pretend I gained 2 hp from removing the stock rear exhaust section. This car would have made 300 hp in this dyno. If the stock engine was 332 crank hp and it made 300 hp on this dyno, that's a conversion factor of 1.1066 for frictional loss (332/300). After mods, this car is making 343 hp on this dyno, which would be roughly 380 hp at the crank (343 x 1.1066). Not bad.

-Phim

In injector mist over the ITBs looks so crazy. I love the sound those F1 motors make.

can someone please explain what is this NA and FI that everyone is talking about?

Thanks in advance,

-Koffeegy

FI means Forced Induction, which means adding a Supercharger or Turbocharger setup to compress the intake air. Generally a pretty expensive mod.

NA means Naturally Aspirated, which is the opposite. The engine is just drawing intake air with its own suction, like our stock 370Zs do.

Quote:

Originally Posted by wstar (Post 1267713)

Thanks WSTAR

-Koffeegy

i honestly think with a little more compression full bolt-ons and i mean FULL, and a tune you can get really close :). this is the route ive been going right now, but i will be going e85 aswell.