370Z K&N Dual Air Filter

tstrick9 · 06-18-2009, 09:25 AM

K&n filters do seem more heavily oiled new than what i go for when i re-oil them.

MC · 06-18-2009, 09:28 AM

another option is the HKS hybrid filters for the 370. i got them in the GT-R. they arnt reusable though so every so often you gotta get new ones. they run about $70

semtex · 06-18-2009, 10:31 AM

Umm . . . okay. FWIW, I got net gain of 14.7 whp from the Stillen G3 intake, which is why I found your post a little puzzling. Not sure if you've seen this thread of mine or not -> Install of Stillen G3 Intakes complete - review, etc. I have before/after dyno charts, vid, etc. posted in that thread if you're interested.

Robert_Nash · 06-18-2009, 10:35 AM

Not trying to step on anybody's toes here...I'm just relaying what I've been told by people who are in a position to at least have an intelligent opinion on the subject.

dawankler · 06-18-2009, 02:45 PM

Quote:

Originally Posted by Robert_Nash

Not trying to step on anybody's toes here...I'm just relaying what I've been told by people who are in a position to at least have an intelligent opinion on the subject.

If the stock intake and exhaust are adequate for all of the engine's needs how did the Nissan engineers increase the HP/TQ of the Nismo 370 just by replacing the intake and exhaust?

Engineering is a careful balance of a number of factors. In this case with the intake/exhaust design of the stock 370 those factors include price, power, efficiency, exhaust note, emissions standards, and probably 20 others that I'm not thinking of. It's not outside the realm of possibility to believe that engineers sacrificed some power numbers in order to meet one of the other factors. For end users who are willing to sacrifice general publicly acceptable exhaust note, price or efficiency for those extra ponies can find it in these aftermarket mods.

With that said, I agree with Josh. I think Nissan hit it out of the park with the 370. It's got everything your average person would want in a two seat performance vehicle at a price that your average person can afford.

Robert_Nash · 06-18-2009, 02:49 PM

Quote:

Originally Posted by dawankler

If the stock intake and exhaust are adequate for all of the engine's needs how did the Nissan engineers increase the HP/TQ of the Nismo 370 just by replacing the intake and exhaust?

Even if I asked; they very likely wouldn't tell me.

Even if they told me, I probably wouldn't be allowed to tell anyone else.

If I did tell anyone else I'd probably (and appropriately) be fired.

So I think it best I shut up now.

2bits · 06-18-2009, 04:45 PM

Quote:

Originally Posted by Robert_Nash

Even if I asked; they very likely wouldn't tell me.

Even if they told me, I probably wouldn't be allowed to tell anyone else.

If I did tell anyone else I'd probably (and appropriately) be fired.

So I think it best I shut up now.

I think the confusion is stemming from airflow vs charge temp. The opinion you cited only addressed airflow. While stock airflow may be adequate, it's drawing hot engine compartment air. The only intake which has showed significant improvement so far (Stillen G3) moves induction in front of the radiator, outside the engine compartment entirely.

It's not really about intake airflow for the 370z, so it misses the point.

Josh@STILLEN · 06-18-2009, 10:40 AM

Robert, you can let them know that they built a hell of a car.. that's for sure!

MightyBobo · 06-18-2009, 10:43 AM

Personally, I'd thank them for choking the **** out of the intake and exhaust, making it very mod-friendly

semtex · 06-18-2009, 10:43 AM

Quote:

Originally Posted by MightyBobo

Personally, I'd thank them for choking the **** out of the intake and exhaust, making it very mod-friendly

Definitely! +1

semtex · 06-18-2009, 02:56 PM

If I'm not mistaken, the Nismo 370 has the same intake as regular models. I remember reading that the extra hp was achieved with a different exhaust and some adjustments to the ECU map only.

dawankler · 06-18-2009, 03:22 PM

Quote:

Originally Posted by semtex

If I'm not mistaken, the Nismo 370 has the same intake as regular models. I remember reading that the extra hp was achieved with a different exhaust and some adjustments to the ECU map only.

I think I read (maybe incorrectly) that it was a different intake also.

Even with an ECU remapping it just goes to show that the same aftermarket mods he's discounting were used by Nissan engineers to increase power.

Robert_Nash · 06-18-2009, 03:34 PM

Quote:

Originally Posted by dawankler

I think I read (maybe incorrectly) that it was a different intake also.

Even with an ECU remapping it just goes to show that the same aftermarket mods he's discounting were used by Nissan engineers to increase power.

If you are referring to me, which mods, exactly, are you saying I'm discounting that are applicable to the Nismo 370?

semtex · 06-18-2009, 03:59 PM

Here's where I read it:

2010 Nissan Nismo 370Z - 2009 New York Auto Show Coverage, New car Reviews, Concept Cars - Automobile Magazine

Quote:

In order to provide power to match the track prowess, Nismo also fiddled with the Z's engine. The 3.7-liter V-6 is almost identical to that in a normal 370Z, but thanks to a Nismo exhaust system and a tricked-out engine control module, it sees a substantial boost in power. The Nismo-tuned mill produces 350 hp at 7400 rpm (vs. 332 hp @ 7000 rpm) and 276 lb-ft of torque (up from 270) at 5200 rpm. Nismo 370Zs are only available with a six-speed manual transmission, which is equipped with the trick rev-matching system.

Funny, the opening paragraph of the article says:

Quote:

Nissan's new 370Z may be quite nimble, but those hankering for a track-ready package should consider stepping up to the new 2010 Nismo 370Z, which debuts at the 2009 New York auto show.

That's pretty laughable. But to be fair, these are Automobile mag's words, not Nissan's.

dawankler · 06-18-2009, 04:44 PM

Quote:

Originally Posted by semtex

Here's where I read it:

2010 Nissan Nismo 370Z - 2009 New York Auto Show Coverage, New car Reviews, Concept Cars - Automobile Magazine

Funny, the opening paragraph of the article says:

That's pretty laughable. But to be fair, these are Automobile mag's words, not Nissan's.

You're right, I think my mind made a connection with the available Nismo intakes and the production Nismo vehicle. Whoops. I AM now disappointed that my Synchro-Rev transmission doesn't do magic tricks for me

And Robert, in rereading your earlier posts you DID say you didn't think it'd provide appreciable performance gains unless they were in tandem with FI or extreme modifications. I guess it just depends on your price/performance ratios, but there's been a number of posters here with proven gains (10% isn't uncommon so far) by just upgrading the airflow.

06-18-2009, 09:28 AM	#2 (permalink)
MC Moderator Join Date: Oct 2008 Location: NC Posts: 3,238 Drives: 2015 GTR NISMO Rep Power: 25	another option is the HKS hybrid filters for the 370. i got them in the GT-R. they arnt reusable though so every so often you gotta get new ones. they run about $70 __________________ 2015 GT-R N1SMO "THE ONE" Instagram MCGTRN1SMO Youtube MCGTRNISMO

06-18-2009, 10:31 AM	#3 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 55 Posts: 5,995 Drives: People to drink Rep Power: 34	Umm . . . okay. FWIW, I got net gain of 14.7 whp from the Stillen G3 intake, which is why I found your post a little puzzling. Not sure if you've seen this thread of mine or not -> Install of Stillen G3 Intakes complete - review, etc. I have before/after dyno charts, vid, etc. posted in that thread if you're interested. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

06-18-2009, 10:35 AM	#4 (permalink)
Robert_Nash Track Member Join Date: Jan 2009 Location: Middle TN/Savannah GA Posts: 762 Drives: '14 Q60IPL/'14Armada Rep Power: 19	Not trying to step on anybody's toes here...I'm just relaying what I've been told by people who are in a position to at least have an intelligent opinion on the subject. __________________ Robert -My Basset Hound Is Smarter Than Your Honor Student and Barack Obama -

06-18-2009, 10:43 AM	#9 (permalink)
MightyBobo A True Z Fanatic Join Date: Feb 2009 Location: Las Vegas, NV Posts: 8,465 Drives: No cars; only bikes Rep Power: 54	Personally, I'd thank them for choking the **** out of the intake and exhaust, making it very mod-friendly __________________ I don't own a car anymore.

06-18-2009, 02:56 PM	#11 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 55 Posts: 5,995 Drives: People to drink Rep Power: 34	If I'm not mistaken, the Nismo 370 has the same intake as regular models. I remember reading that the extra hp was achieved with a different exhaust and some adjustments to the ECU map only. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

06-18-2009, 09:25 AM	#1 (permalink)
tstrick9 Base Member Join Date: Jun 2009 Location: north carolina Posts: 45 Drives: 2003 cobra, 2006 tb Rep Power: 17	K&n filters do seem more heavily oiled new than what i go for when i re-oil them.

06-18-2009, 10:40 AM	#8 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 535	Robert, you can let them know that they built a hell of a car.. that's for sure!

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