Stay NA or go to the Dark Side?

edub370

na can be badass on these vq's. idk if anyone caught this months modified (or superstreet. cant remember) but it had an article on an 04ish 350z that was a built NA car and it was making 377whp. thats with the old single mani configuration too. 400whp na is not unattainable for our cars

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Megan370z

you will not see anyone getting 400whp N/A with the VVEL !!
hell even with those custom parts that I made which I spend hours for the research on how and what to do, Im still quite far from the 400 mark !!
but lastly on that dyno I had a good 15whp edge over other peoples who where also fully bolt-on.

that vq35 which did 377whp was probably a quite expensive NA built with some big cams and lighter rotary parts (fywheel/clucth/pulley) and other parts.

just an exemple from a guy I know

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Megan Journal *Click Me* ....................One Man Team Motorsport *Click Me*

Red__Zed

you won't even come close to 400whp with anything streetable.


surely you are joking.


I am continually stunned every time I look at this thread, and people are pushing the "NA=reliable" claim. In reality, at power level that are even REMOTELY comparable, you are going to see better reliability with boost every time.


You can get to 400ish whp no problem with mild boost and a conservative tune, and probably run the car for 100k+. Trying to get to even 360whp NA is going to mean cracking the engine open, and running a significantly more aggressive tune...not to mention probably cutting down on the air intake filtration. Look at the 350 Megan370z posted... it is running ITBs, and a hella aggressive tune, not to mention all the other crap. Trying to wrench power out of an NA build means a whole lot more risk to the engine, all with a much lower reward.

If SS wants to do it because he can afford it, I'll be one of the first people to subscribe to the build thread, but if he does it, it should be with eyes wide open to the risks.

Kingbaby

It's because we are currently NA in stock form...VQHR guy here and NA guys are already into 100k club, and they are not pussy footing around in it either! I have 39k of hard street driving....if I'd had done the same on a boosted application, I doubt it would've made it to 39k.

On the other note....GTM kits installed correctly with reasonable boost are also lasting the test of time also....


So it goes both ways!


NA has a little more pride it in...



OP don't forget gears/TUNE/100shot

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07 Silver Alloy Nissan 350Z Nismo #0191 "Lin'da"
2amR--------------------> VQ I.N.C. - Like us!

Red__Zed

Built NA != stock NA

Kingbaby

For the average Z owner yes! All bolt-ons/a tune/supporting mods is what I'm talking about I rarely see folks dive into a small engine build due to the minimal gains seen from cams or anything else.

Haven't seen/followed your build...do you still drive with the same confidence?

I'm not trying take anything away from boost, it's just the way a boosted Z car is driven 9 out of 10 times is sadden that's all.

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07 Silver Alloy Nissan 350Z Nismo #0191 "Lin'da"
2amR--------------------> VQ I.N.C. - Like us!

ZKraken22

So adding FI to a NA car is more reliable? So im seeing more guys with z's and G's adding Strokers along with a FI kit. Why are they doing that? to make the car more reliable! buddies na mustang with 135K... Cam, heads you name it and the car still runs. He is still in college he has needed a tune and new spark plugs a year ago and the car is still running. Let me see a boosted car last a year needing a re tune. The car that Megan370z posted im not telling OP to run anything like that. more like gabe3d over at (my350z) with the Stroker, cam G35 who has 100 miles on the engine. NA is reliable.

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Litespeed Racing Titanium Cold Air intake// GT Haus Axle// GarageLine combo// Nismo sway bars// Nismo Spoiler // Berk TP's

Red__Zed

Are you serious? They are adding a stroker on top of FI to make more power. There's still no replacement for displacement, and a stroked motor is fantastic for producing torque.


I didn't stroke my motor for reliability...I did it for POWER



a) apples and oranges
b) happens all the time, especially when you are only picking up a couple of horses



There are only a couple of ways to increase power...it pretty much comes down to trying to make air and fuel mix better. FI does this pretty easily-- you take your engine and you cram more air down it's gullet. If your goal isn't big power, you can still run an OEM-style tune, and keep things perfectly reliable.

To get results of a similar magnitude from an NA build, you are having to run an extremely aggressive tune that kills driveability and generates a whole ton of extra heat to deal with. You are fundamentally limited by atmospheric pressure, and this leaves you no other option than trying to get closer to the edge. It comes down to basic chemistry and physics.


The only way an "NA build" is going to be more reliable than an FI build is if:

A) you put together a crappy FI system
B) you are talking low-dollar, low-power builds (ie, bolt-ons)