Installed stillen gen 3 and ...

zulus370Z · 08-31-2009, 11:22 AM

Was dissapointed.
They definitely tax the living crap out of your mid-low end power.
They do improve a little bit the last 1500 rpms, but it's a crappy compromise.

Aside from them looking nice under the hood, I would say $520 not well spent.

If you guys come across feedback for other products that you think we can save our money by not buying the. BecauSE of the benefit/cost factor, please share!

Thanks in advance

m4a1mustang · 08-31-2009, 11:28 AM

Did you reset the ECU after the install?

kannibul · 08-31-2009, 11:36 AM

Wow, I just installed mine, and I think it was an improvement over stock...I mean, butt-dyno wise...

NewlyIMPORTed · 08-31-2009, 12:34 PM

you have to wait a few days for the ecu and the engine to break in the new intake i didnt notice much at first but after a few days it really began to show. so give it time

jpit · 08-31-2009, 12:34 PM

The G3 has produced some widely varying numbers. When Mike Kojima tested it on an automatic (bumper on) it lost power right up until the top end when it gained a little. When he tested it on the manual, it gained about 5 hp across the board with a gain of 9 at the top end. When the test was done with the bumper off he added another 3 or 4 in the mid-range and 6 at the top end.

zulus370Z · 08-31-2009, 12:58 PM

I did reset by unplugging the ecu while installing the intake.
Mr. Kohima was prob right.. The car feels a little better right at the end , but not below that .. Taking away from responsiveness.
I still have stok cats and exhaust, so maybe the car is choking up?

NewlyIMPORTed · 08-31-2009, 02:26 PM

do you have any bogging issues when trying to accelerate sometimes? i feel sometimes that my engine bogs under fast acceleration

m4a1mustang · 08-31-2009, 06:11 PM

From what RPM are you starting to accelerate? Keep in mind that you really need to wind this engine out... so if you're mashing the gas from under 4-5k it probably feels a little sluggish initially.

MrBMW · 08-31-2009, 07:48 PM

To be honest I'm rather surprised at your findings. I mean I can only go by what I am feeling and have seen with my car though.

From the Dyno sheet, mine is line ball from the beginning to the end where it makes 16hpatw, compared to stock. This was with "NO" resetting of the ECU what so ever either. Basically we did a power run before, installed, then another run.

As for responsiveness (besides some slight aural gains), it's much better for me. I do feel for you that it hasn't given you the same benefit that I have gotten though. BTW both runs were done with the bumper on, honestly not much point otherwise.

Snakes709 · 08-31-2009, 08:36 PM

ok so is this a mod to buy or not or wait out and buy something else for now...lol. I just got $1000 extra from the army and i was going to order this tomorrow buy it straight from the dealership cuz they r giving me a deal since i just bought a car from them. Also how do u reset the ecu? just unplug the battery?

Rob@Altered · 09-01-2009, 01:12 AM

As a car enthusiast, not as a sales associate, I would consider buying HFC for the 370Z before cold air intake kits.
It's about the same price, if not more, and the install hours are about the same too because you have to remove the front bumper.
Also, HFCs been proven to add 10+hp at the wheels.
Thats just me...

NewYorkJon34 · 09-01-2009, 01:21 AM

^which do u think I would feel the most difference vs. stock: HFCs or the stillen G3 intakes?

jpit · 09-01-2009, 02:01 AM

HFCs by a good margin.

Rob@Altered · 09-01-2009, 10:35 AM

Quote:

Originally Posted by NewYorkJon34

^which do u think I would feel the most difference vs. stock: HFCs or the stillen G3 intakes?

The idea behind intake and exhaust mods are to move more volumes of air efficient in and out.
If intake and exhaust mods were done but OEM cats were left on, the OEM Cats would be acting like a kink in this system.
You will see definite improvement of whp gains after the HFCs.

Because of 370Zs dual intake system, compare to single on 350Zs, the intake kits are now about par with HFC, sometimes even cheaper.

It's your call, if you buy HFC, you'll eventually mod your intake system anyways.

Either way, gaining HP is better than not gaining any.
Catch 22, in a good way...

dainedazz · 09-01-2009, 10:51 AM

Quote:

Originally Posted by AAM_COMP

The idea behind intake and exhaust mods are to move more volumes of air efficient in and out.
If intake and exhaust mods were done but OEM cats were left on, the OEM Cats would be acting like a kink in this system.
You will see definite improvement of whp gains after the HFCs.

Because of 370Zs dual intake system, compare to single on 350Zs, the intake kits are now about par with HFC, sometimes even cheaper.

It's your call, if you buy HFC, you'll eventually mod your intake system anyways.

Either way, gaining HP is better than not gaining any.
Catch 22, in a good way...

Very well said

08-31-2009, 11:22 AM	#1 (permalink)
zulus370Z Base Member Join Date: Jul 2009 Location: Miami Posts: 97 Drives: Black 370Z 6M Rep Power: 15	Installed stillen gen 3 and ... Was dissapointed. They definitely tax the living crap out of your mid-low end power. They do improve a little bit the last 1500 rpms, but it's a crappy compromise. Aside from them looking nice under the hood, I would say $520 not well spent. If you guys come across feedback for other products that you think we can save our money by not buying the. BecauSE of the benefit/cost factor, please share! Thanks in advance

08-31-2009, 11:28 AM	#2 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Did you reset the ECU after the install? __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

08-31-2009, 06:11 PM	#8 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	From what RPM are you starting to accelerate? Keep in mind that you really need to wind this engine out... so if you're mashing the gas from under 4-5k it probably feels a little sluggish initially. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

08-31-2009, 07:48 PM	#9 (permalink)
MrBMW Enthusiast Member Join Date: Jun 2009 Location: Brisbane, Australia Age: 47 Posts: 384 Drives: YELLOW 370Z 6MT NAV Rep Power: 15	To be honest I'm rather surprised at your findings. I mean I can only go by what I am feeling and have seen with my car though. From the Dyno sheet, mine is line ball from the beginning to the end where it makes 16hpatw, compared to stock. This was with "NO" resetting of the ECU what so ever either. Basically we did a power run before, installed, then another run. As for responsiveness (besides some slight aural gains), it's much better for me. I do feel for you that it hasn't given you the same benefit that I have gotten though. BTW both runs were done with the bumper on, honestly not much point otherwise. __________________ My New Car Album. Stillen Gen III Intake Installed, F.I. RTP's Cat Back INSTALLED

09-01-2009, 01:12 AM	#11 (permalink)
Rob@Altered Enthusiast Member Join Date: Jul 2009 Location: Gaithersburg Posts: 282 Drives: 350Z/370Z/GTR/G35 Rep Power: 368	As a car enthusiast, not as a sales associate, I would consider buying HFC for the 370Z before cold air intake kits. It's about the same price, if not more, and the install hours are about the same too because you have to remove the front bumper. Also, HFCs been proven to add 10+hp at the wheels. Thats just me... __________________ Altered Atmosphere Motorsports RobS@alteredatmosphere.com

08-31-2009, 11:36 AM	#3 (permalink)
kannibul A True Z Fanatic Join Date: Jun 2009 Location: Jenks, OK Posts: 2,281 Drives: 370z Touring/Sport Rep Power: 266	Wow, I just installed mine, and I think it was an improvement over stock...I mean, butt-dyno wise...

08-31-2009, 12:34 PM	#4 (permalink)
NewlyIMPORTed A True Z Fanatic Join Date: May 2009 Location: Kennesaw, GA Posts: 1,109 Drives: 11 STI Sedan Rep Power: 17	you have to wait a few days for the ecu and the engine to break in the new intake i didnt notice much at first but after a few days it really began to show. so give it time

08-31-2009, 12:34 PM	#5 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 16	The G3 has produced some widely varying numbers. When Mike Kojima tested it on an automatic (bumper on) it lost power right up until the top end when it gained a little. When he tested it on the manual, it gained about 5 hp across the board with a gain of 9 at the top end. When the test was done with the bumper off he added another 3 or 4 in the mid-range and 6 at the top end.

08-31-2009, 12:58 PM	#6 (permalink)
zulus370Z Base Member Join Date: Jul 2009 Location: Miami Posts: 97 Drives: Black 370Z 6M Rep Power: 15	I did reset by unplugging the ecu while installing the intake. Mr. Kohima was prob right.. The car feels a little better right at the end , but not below that .. Taking away from responsiveness. I still have stok cats and exhaust, so maybe the car is choking up?

08-31-2009, 02:26 PM	#7 (permalink)
NewlyIMPORTed A True Z Fanatic Join Date: May 2009 Location: Kennesaw, GA Posts: 1,109 Drives: 11 STI Sedan Rep Power: 17	do you have any bogging issues when trying to accelerate sometimes? i feel sometimes that my engine bogs under fast acceleration

08-31-2009, 08:36 PM	#10 (permalink)
Snakes709 A True Z Fanatic Join Date: Aug 2009 Location: Edmonton Posts: 1,205 Drives: 2011 Evo-X GSR Rep Power: 17	ok so is this a mod to buy or not or wait out and buy something else for now...lol. I just got $1000 extra from the army and i was going to order this tomorrow buy it straight from the dealership cuz they r giving me a deal since i just bought a car from them. Also how do u reset the ecu? just unplug the battery?

09-01-2009, 01:21 AM	#12 (permalink)
NewYorkJon34 A True Z Fanatic Join Date: Jun 2009 Location: Naples, Florida Posts: 3,041 Drives: 09 Fairlady Z Rep Power: 1064	^which do u think I would feel the most difference vs. stock: HFCs or the stillen G3 intakes?

09-01-2009, 02:01 AM	#13 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 16	HFCs by a good margin.

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