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Old 02-09-2018, 04:54 PM   #1
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Default Racer X 1.4L Air intake box

While we were working on the intake manifold we also had a bit of time to work on our cold air intake for the 1.4L. We have always had great results from air boxes on vehicles and the sonic is no exception. We were hoping to stuff a 4" velocity stack in the area we had to work with but it would not clear the hood. So we opted for the 3" velocity stack that provides a full tapered bell mouth of 4.5". We used the OEM panel filter to calculate the frontal area and then chose a slightly larger panel filter that turned out to be a good fit for this application. The velocity stack and filter are enclosed in our air box frame and sheet metal air box. The air box frame utilizes the OEM mounting locations with a set of CNC machined mounting tabs we cut.

All in all the project turned out pretty well and we are quite happy with the results from an air intake. Questions and comments welcome, dyno graphs below and a few pics. Dyno testing is using a completely stock Sonic RS, and only changing the air intake system. No modifications to the ECU.









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Old 02-09-2018, 06:55 PM   #2
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Looks pretty slick, glad to see another company producing parts for these vehicles . Not sure whether I like this or the GMPP intake box more. The see through portion on the GMPP box is pretty cool looking. What price range are you shooting for with this?? Also will this require a tune to see any advantage?? From what you listed here it appears you are seeing gains on a stock tune?? Keep up the good work


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Old 02-09-2018, 07:15 PM   #3
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Originally Posted by Mr.turner85 View Post
Looks pretty slick, glad to see another company producing parts for these vehicles . Not sure whether I like this or the GMPP intake box more. The see through portion on the GMPP box is pretty cool looking. What price range are you shooting for with this?? Also will this require a tune to see any advantage?? From what you listed here it appears you are seeing gains on a stock tune?? Keep up the good work


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No tune required, those are the gains from the OEM ECU. A tune may improve the gains we have already seen though. Pricing can be found on our site here:
racerxfabrication.com/sonic/air-intake/cold-air-intake
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Old 02-09-2018, 07:20 PM   #4
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Not a bad price point considering the r&d / fab work

Thanks for adding to the options available to us!

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Old 02-12-2018, 02:52 AM   #5
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So where is the inlet on this thing? On the back side? Pretty good price considering and it looks sweet.
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Old 02-12-2018, 01:48 PM   #6
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My issue is the box attracts heat from the engine compartment. Defeats the concept of cold air induction. The OEM box and air induction tube are non metalic.
Something to think about other than looks.
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Old 02-12-2018, 03:24 PM   #7
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Originally Posted by Gsf1200m View Post
So where is the inlet on this thing? On the back side? Pretty good price considering and it looks sweet.
The air filter inlet is located directly below the air box facing the inlet duct from the OEM location

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My issue is the box attracts heat from the engine compartment. Defeats the concept of cold air induction. The OEM box and air induction tube are non metalic.
Something to think about other than looks.
Actually the air box is around ambient temperature during operation. Sure if you are sitting at a stop light with little airflow running through the system it will start to heat soak. Under load the ambient airflow brings the air box temp back down.
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Old 02-12-2018, 10:58 PM   #8
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Quote:
Originally Posted by jeff@racerxfab View Post
The air filter inlet is located directly below the air box facing the inlet duct from the OEM location



Actually the air box is around ambient temperature during operation. Sure if you are sitting at a stop light with little airflow running through the system it will start to heat soak. Under load the ambient airflow brings the air box temp back down.
Awesome thanks. Do you have a pic showing it?
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Old 02-14-2018, 02:58 PM   #9
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So where is the inlet on this thing? On the back side? Pretty good price considering and it looks sweet.
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Awesome thanks. Do you have a pic showing it?
I'll see if I can grab a few pics this morning.
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Old 02-14-2018, 04:17 PM   #10
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Smile Ordered one and will post a full report

I put in an order today for the RacerX airbox. Will let y'all know how it goes for the install and testing. (Not going to dyno) just some pics of the install and video of it when in. Proud to be supporting RacerX and American Industry.

Also there is no 'super excited clapping hands' smiley so the use of a dancing banana is fully justified
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