DIY: Fresh Air Ducting for Stillen G3 Users

nightwish · 08-14-2012, 12:28 PM

Nice write up and another way to get air into our gen3

taek · 08-25-2012, 10:18 PM

NICE i am going to try this on my G37

edconline · 09-28-2013, 04:54 PM

Just did this finally! Thanks for the write up

it was tough getting the bumper back on with the big oil cooler lines and the ducting on the passenger side but if you push hard enough, anything will fit lol. I'll report on intake air temps, I've been watching them without the ducting so I'm interested to see if the difference is major.

UPDATE:

After going for a cruise and monitoring the new intake air temps, I can confidently say that the ducting for the G3's does work. It is 18 degrees Celcius here today, and after everything was warmed up (oil at 90 degrees, coolant at 83) while idling the intake air temp was around 38-40 degrees Celcius. As soon as I started driving again I could watch it dropping to around 27 degrees, and once moving faster 23 degrees Celcius. That's about where it stayed with Highway driving, 4-5 degrees C hotter than the ambient air temp.
This is a reduction of about 5 degrees from before I had the ducts. (I would see about 28C as the low temp on the hwy given the same ambient temperature) It'll be interesting to see come next summer how close to ambient air temp the IAT stays as I used to see intake temps of 58C when it was 28C outside

Apollo8642 · 10-29-2013, 04:25 PM

Just curious, does anyone run, or have thought about running the Varis or Mines air ducts, for this purpose?
Varis

Mines

wstar · 10-30-2013, 12:36 AM

I think they would work and be helpful for getting more/colder air to the G3's. The tradeoff is they'll also dump driving rain into your G3's (if you drive in the rain on the street). That and they're kind of expensive for little plastic edge-pieces. It would be cheaper to fab up your own or buy something generic that has the same basic shape.

Also, both of them as installed in the pics above are too far apart. Even the narrower Varis layout would be at the rear edges of the cones. It would help, but it would be more ideal to have the inlets closer to the center.

DEpointfive0 · 10-30-2013, 01:29 AM

My friend (no longer on this forum) did that with some off brand ducts, he offset them so rain wouldn't hit the filters. Honestly, I think it looks REALLY bad...

Sorry... Um... I forgot the member that I think has these on his car, lol

dudesky · 11-03-2013, 09:14 PM

do those 2 black pieces (where you put those pipe ducts) screwed on or clipped to the bumper or do I have to cut it out?

jchammond · 12-21-2017, 01:53 AM

I’m gonna post on this old thread & see how others have introduced more air to their CAI’s.
Here’s my air guide I built to direct it through radiator & wraps around to filters....currently all foam is in place;but thinking of removing section in front of filters or either piping in from fangs.
Fangs currently blocked off.

Sent from my iPhone using Tapatalk

08-25-2012, 10:18 PM	#32 (permalink)
taek Base Member Join Date: Aug 2012 Location: Arizona Posts: 11 Drives: 09 Infiniti G37SS Rep Power: 12	NICE i am going to try this on my G37 __________________ 09 Infiniti G37SS: Hotchkis, Stillen Gen2, Eibach, GTstrut, etc ..

09-28-2013, 04:54 PM	#33 (permalink)
edconline Track Member Join Date: Mar 2010 Location: Edmonton Posts: 855 Drives: 10' MB Z34 6MT T/S/N Rep Power: 22	Just did this finally! Thanks for the write up it was tough getting the bumper back on with the big oil cooler lines and the ducting on the passenger side but if you push hard enough, anything will fit lol. I'll report on intake air temps, I've been watching them without the ducting so I'm interested to see if the difference is major. UPDATE: After going for a cruise and monitoring the new intake air temps, I can confidently say that the ducting for the G3's does work. It is 18 degrees Celcius here today, and after everything was warmed up (oil at 90 degrees, coolant at 83) while idling the intake air temp was around 38-40 degrees Celcius. As soon as I started driving again I could watch it dropping to around 27 degrees, and once moving faster 23 degrees Celcius. That's about where it stayed with Highway driving, 4-5 degrees C hotter than the ambient air temp. This is a reduction of about 5 degrees from before I had the ducts. (I would see about 28C as the low temp on the hwy given the same ambient temperature) It'll be interesting to see come next summer how close to ambient air temp the IAT stays as I used to see intake temps of 58C when it was 28C outside __________________ View Journal Audio Build Last edited by edconline; 09-28-2013 at 06:19 PM.

10-30-2013, 12:36 AM	#35 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	I think they would work and be helpful for getting more/colder air to the G3's. The tradeoff is they'll also dump driving rain into your G3's (if you drive in the rain on the street). That and they're kind of expensive for little plastic edge-pieces. It would be cheaper to fab up your own or buy something generic that has the same basic shape. Also, both of them as installed in the pics above are too far apart. Even the narrower Varis layout would be at the rear edges of the cones. It would help, but it would be more ideal to have the inlets closer to the center. __________________ 7AT Track Car! Journal thread / Car setup details

10-30-2013, 01:29 AM	#36 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	My friend (no longer on this forum) did that with some off brand ducts, he offset them so rain wouldn't hit the filters. Honestly, I think it looks REALLY bad... Sorry... Um... I forgot the member that I think has these on his car, lol __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

12-21-2017, 01:53 AM	#38 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 57 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684394	I’m gonna post on this old thread & see how others have introduced more air to their CAI’s. Here’s my air guide I built to direct it through radiator & wraps around to filters....currently all foam is in place;but thinking of removing section in front of filters or either piping in from fangs. Fangs currently blocked off. Sent from my iPhone using Tapatalk Spartan 1771 and 370-uk-nut like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

08-14-2012, 12:28 PM	#31 (permalink)
nightwish Base Member Join Date: Jul 2012 Location: na Posts: 111 Drives: na Rep Power: 12	Nice write up and another way to get air into our gen3

10-29-2013, 04:25 PM	#34 (permalink)
Apollo8642 Base Member Join Date: Feb 2012 Location: Oregon Posts: 187 Drives: 09 370Z Nismo #280 Rep Power: 13	Just curious, does anyone run, or have thought about running the Varis or Mines air ducts, for this purpose? Varis Mines

11-03-2013, 09:14 PM	#37 (permalink)
dudesky Track Member Join Date: Apr 2011 Location: Kraid's lair Posts: 516 Drives: E46 M3 6MT Rep Power: 15	do those 2 black pieces (where you put those pipe ducts) screwed on or clipped to the bumper or do I have to cut it out?

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