AMCDeac

iTrader: (1)

There was an excellent link to a study someone did over at the G35 site, indicating that there were no real gains to be had from adding an intake. (but I can't find it now ) The post and subsequent comments were skeptical of gains, attributing many claims of increased power to the driver's "butt dyno."

The shop I will use to install my catback and RHFC told me today that they have the dynos to prove gains of 10 to 15 hp from intakes, as I recall. Not absolutely sure whether the mod was isolated to show causation from the intakes, or whether other parts or tunes might have played a role, too, but these guys are the real deal so I suspect they did the study correctly. (I suppose that an accurate test would require a tuned car with factory intakes compared to a re-tuned car with new intakes.)

Has anyone had any recent dyno tests where the results showed a gain that was isolated to intakes? I am considering Stillen Gen 2 (not really interested in Gen 3). Curious if anyone has seen measured gains from such intakes, isolated from other mods and tunes.

If there is a real performance advantage, I might go for it. Otherwise, I might just stick with the new catback, RHFCs, and a tune.

Thanks for any comments or observations you might have.

Rad_Slinger

iTrader: (12)

There was a link to the thread you speak of provided a few days ago in another intake thread on here. But SOMEONE deleted the thread due to some guy(who is now banned) acting like a fool.

I came across my K&N dyno sheet they provided with my typhoons today...and laughed.

Hopefully someone can post that link again in here.

bat6wc

iTrader: (31)

i remember seeing dynos on here showing losses with the stillen gen 2.

you will get some power in the mid to upper bands with the stillen gen 3 and r2c. not much. Ive had a lot of intakes and the best short ram in my opinion is by far the R2C. However, intakes on these cars are mostly for looks and sound. (i have a set of R2Cs for sale).

Diego@Vossen

iTrader: (2)

I have tried the following!

JWT Short Ram
Injen Short Ram
HKS Drop Ins
K&N Drop In W Z1 Silicone Tubes
R2C
Stillen Gen 3

Hands down Stillen Gen 3 won it for me...

I should have done these from the beginning however there is that dremmel you must do that still bothered me but the sound power and the look behind the grill is all worth it.

Next to Stillen I would say R2C! Then the Z1 W k&Ns

R2C for sound and Z1 for efficiency and smoother airflow.

Go Stillen my friend.

Paneraiguy

iTrader: (3)

Stillen gen 3- even the takada long tube seems to work ok(the two are similar in design).

Anything that shoves more air in the engine is going to help. This principle is sound otherwise the supercharger never would have been invented. I would speculate that some older design intakes allowed the engine to suck more air in but they just end up sucking more less dense/high temp engine bay air and degrading performance or added no performance.

Not that any intake is going to add big gains anyway.

It seems the best you can do with the g35/37 platform without dropping coin for FI would be to add - intake, HFC, full exhuast( maybe headers even though they are PITA on install for the gain you get) and a tune to optimize how the engine uses its new inhale and exhale capabilities. JMHO

Presto

What to expect from an intake?
To answer your question loss of torque in the lower rpm range, a few hp gain in the high rpm range ( where u probably never reach on street driving)

Better off getting 4.08 gears or something.

G37Sam

Mostly sound I would say.

GTLAW

iTrader: (4)

I would not do Stillen Gen3 that fact they you run the risk of burning a hole in your AC line is not worth the 6RWP. Trust me you are not going to feel any power in the real world with Stillen setup.

Best setup is HPS tubes with K&N filters. Save your $600 for HFC or tune.

Diego@Vossen

iTrader: (2)

Stillen Gen 3 you can get under 500...

HPS w K&N for around 200....

AC Lines really man? LMK where you heard or saw this cause now im worried lol.

bluedevils95

iTrader: (2)

+1 for this.

TVPostSound

iTrader: (9)

Only people who dont read the instructions!!
Stillen supplies, an insulator fo wrap your AC lines.

AMCDeac

iTrader: (1)

Thanks for all the comments. My new FI catback and and RHFCs will be here in a few weeks. Might just stick with those and probably a tune. I am under the impression that tunes are crucial after changing the intakes. Are the still a good idea even without new intakes?

Paneraiguy

iTrader: (3)

Burnt through AC lines. I'd like to see a pic of that install and see if it was installed properly.

The gen 3 added noticeable increase above 4k but dropped some of my beloved low end torque. The local tuning shop stated that will be rectified with a tune when I take in. If you decide against an intake then your new FI exhuast and cats should be good enough. If you have the $$$ you can buy an intake and have it dynoed at the shop if and when you get a tune. If it turns out to add nothing then take it off and try to return it or sale it on the forum. That is the only 100% way to get your answer. Good luck

Diego@Vossen

iTrader: (2)

I currently have>>>

Stillen Gen 3
Fast Intentions RHFC
Fast intentions Catback

Tuning up at Forged or Z1 next month.....

For not having a tune my car pulls hella nice

bat6wc

iTrader: (31)

there is actually a thread on the 370z threads regarding this.