Advice Needed on Next Mod from Experienced Owners

ByThaBay · 08-13-2018, 04:08 AM

I wouldn’t necessarily say that your tuner is wrong with respect to maf readings. It is true that under SOME conditions the air will be more turbulent with an aftermarket air intake than with the factory intake. The factory goes through great lengths to ensure the airflow has as little turbulence as possible and the result can be observed in the relatively smooth maf signals present in most stock applications.

With that said, an intake that produces more flow will in fact produce more power since the air mass consumed is larger and a larger amount of fuel will need to be added to hit the desired fuel targets. A good measurement without a dyno can be approximated by logging g/s of air consumed by the engine under identical conditions for comparison.

Ultimately a lower turbulence maf signal will produce a more accurate load calculation and that will produce a smoother ignition timing curve and the car will drive smoother than a high turbulence system. Each implementation has its drawbacks/benefits.

Wabbyy · 08-13-2018, 05:19 PM

I'd say coilovers unless you want hp gains then get a 3" intake and a tune. Most 3" intakes require a tune for the car to actually run well.

370z2Fast · 08-13-2018, 06:19 PM

I am selling my Stillen Gen 3 intake if you are interested. Only has about 200 miles on it.

CRiZO · 08-13-2018, 06:21 PM

Fast Intentions Turbo kit

2011 Nismo#91 · 08-14-2018, 08:41 AM

IMO:
1. Zspeed CSC Elimination Kit
2A. Intake Either a CAI or K&N Drop ins; Our stock intake is pretty good at getting cold air but the tubing isn't the greatest. 2B. ECUtek Tune
3. Wavetec or Quaif Differential
4. Front Sway Bar
5. Tires and brake pads and oil cooler
6. Done or Take a dive down the rabbit hole of $$$

Quicksilvers · 08-15-2018, 11:11 PM

Install a Z Speed Performance CMAK before it’s too late and install a oil cooler kit for starters.

axmea? · 08-16-2018, 03:02 AM

Quote:

Originally Posted by ByThaBay

I wouldn’t necessarily say that your tuner is wrong with respect to maf readings. It is true that under SOME conditions the air will be more turbulent with an aftermarket air intake than with the factory intake. The factory goes through great lengths to ensure the airflow has as little turbulence as possible and the result can be observed in the relatively smooth maf signals present in most stock applications.

With that said, an intake that produces more flow will in fact produce more power since the air mass consumed is larger and a larger amount of fuel will need to be added to hit the desired fuel targets. A good measurement without a dyno can be approximated by logging g/s of air consumed by the engine under identical conditions for comparison.

Ultimately a lower turbulence maf signal will produce a more accurate load calculation and that will produce a smoother ignition timing curve and the car will drive smoother than a high turbulence system. Each implementation has its drawbacks/benefits.

You drinking the coolaid? For the Z, the gains from CAI from Stillen and Takeda are documented.

08-13-2018, 04:08 AM	#16 (permalink)
ByThaBay Base Member Join Date: Aug 2011 Location: Bay Area, CA Posts: 238 Drives: 2015 370z Rep Power: 10080	I wouldn’t necessarily say that your tuner is wrong with respect to maf readings. It is true that under SOME conditions the air will be more turbulent with an aftermarket air intake than with the factory intake. The factory goes through great lengths to ensure the airflow has as little turbulence as possible and the result can be observed in the relatively smooth maf signals present in most stock applications. With that said, an intake that produces more flow will in fact produce more power since the air mass consumed is larger and a larger amount of fuel will need to be added to hit the desired fuel targets. A good measurement without a dyno can be approximated by logging g/s of air consumed by the engine under identical conditions for comparison. Ultimately a lower turbulence maf signal will produce a more accurate load calculation and that will produce a smoother ignition timing curve and the car will drive smoother than a high turbulence system. Each implementation has its drawbacks/benefits. JLarson and Bswanny like this. Last edited by ByThaBay; 08-13-2018 at 04:14 AM.

08-13-2018, 05:19 PM	#17 (permalink)
Wabbyy Base Member Join Date: Aug 2016 Location: New Jersey Posts: 58 Drives: 2009 370z Rep Power: 9	I'd say coilovers unless you want hp gains then get a 3" intake and a tune. Most 3" intakes require a tune for the car to actually run well. __________________ Double Layer Tints (5% on top of 15%), Muffler/Resonator Delete, Z1 Long Tube Intakes, Z1 Aluminum Undershroud, H&R Lowering Springs Last edited by Wabbyy; 08-13-2018 at 08:04 PM.

08-13-2018, 06:19 PM	#18 (permalink)
370z2Fast Base Member Join Date: Apr 2018 Location: Idaho Posts: 28 Drives: 2015 Nissan 370Z Rep Power: 3362	Stillen Gen 3 Intake I am selling my Stillen Gen 3 intake if you are interested. Only has about 200 miles on it. wideglideleon likes this.

08-13-2018, 06:21 PM	#19 (permalink)
CRiZO Track Member Join Date: Nov 2017 Location: Dallas Posts: 672 Drives: in traffic Rep Power: 20699	Fast Intentions Turbo kit Jayhovah likes this.

08-14-2018, 08:41 AM	#20 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,401 Drives: slowly Rep Power: 40569	IMO: 1. Zspeed CSC Elimination Kit 2A. Intake Either a CAI or K&N Drop ins; Our stock intake is pretty good at getting cold air but the tubing isn't the greatest. 2B. ECUtek Tune 3. Wavetec or Quaif Differential 4. Front Sway Bar 5. Tires and brake pads and oil cooler 6. Done or Take a dive down the rabbit hole of $$$ wanker and Bam12m like this. __________________ GTR TT 493Whp/431lbft, Ecutek, Southbend 6puck,Quaife, RPM RollBar 4Point, R888R, JRZ RSPro F(10R/10C) R(10R/6C) 1000f500r inlbs+150inlbs Tender, SPL everywhere.Full Specs

08-15-2018, 11:11 PM	#21 (permalink)
Quicksilvers A True Z Fanatic Join Date: May 2017 Location: Atlanta, GA Posts: 2,039 Drives: 2017 370z Rep Power: 25463	Install a Z Speed Performance CMAK before it’s too late and install a oil cooler kit for starters.

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