LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

ls3 swap cai

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Old Sep 2, 2010 | 06:47 PM
  #1  
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From: fresno ca
Car: 89 IROC-Z
Engine: 6.2 LS3
Transmission: MN12 T56 GTO
Axle/Gears: 3.73
ls3 swap cai

need ideas and pics of cold air intakes for a ls engine swap
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Old Sep 2, 2010 | 07:36 PM
  #2  
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From: Melbourne
Car: 89 Camaro RS
Engine: LM7
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Axle/Gears: 3.42
Re: ls3 swap cai

2004 GTO K&N CAI works and looks great. There are a some pics of guys with that setup around this board
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Old Sep 2, 2010 | 09:42 PM
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Re: ls3 swap cai



Most build their own with tubing and rubber/silicone connectors. Personal preference really. Cost is very similar any route you take
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Old Sep 6, 2010 | 07:55 PM
  #4  
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From: fresno ca
Car: 89 IROC-Z
Engine: 6.2 LS3
Transmission: MN12 T56 GTO
Axle/Gears: 3.73
Re: ls3 swap cai

how about some pics and what parts u guys used
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Old Sep 6, 2010 | 09:07 PM
  #5  
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From: Ontario, Canada
Car: 1991 Trans Am GTA
Engine: LSX (swapping)
Transmission: 4L60E (swapping)
Axle/Gears: 2.73 Posi 10 Bolt
Re: ls3 swap cai

I used:

(1) 4" to 4" 90* rubber elbow
(1) 4" to 4" 45* rubber elbow
Section of 4" aluminum tubing
(5) 4" clamps
(1) K&N filter, I don't have the part number, it's a 4" inlet though, 7 or 9 inches long.




Bought all the parts from www.intakehoses.com
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Old Sep 6, 2010 | 09:35 PM
  #6  
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From: fresno ca
Car: 89 IROC-Z
Engine: 6.2 LS3
Transmission: MN12 T56 GTO
Axle/Gears: 3.73
Re: ls3 swap cai

Originally Posted by kizmaro89
2004 GTO K&N CAI works and looks great. There are a some pics of guys with that setup around this board

anyone tried the 05 gto k&n cai it looks to be a lil straighter not so many bends
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Old Sep 6, 2010 | 10:18 PM
  #7  
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Re: ls3 swap cai

Cheap spectre 4" filter
2x 4" strait connectors with T-bolts
4" 90* mild steel exhaust tubing
4" 45* mild steel exhaust tubing cut in half mid bend and welded to the 90*

Tight fit, looks great, works great, good MAF readings, reasonable IATs, inexpensive compared to a prebuilt piece

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Old Sep 6, 2010 | 11:28 PM
  #8  
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Car: 91 z
Axle/Gears: moser 9"
Re: ls3 swap cai

I made mine out of aluminum 4" piping. I dont have any completed pics but it look great!! And its the best cold air intake you can have!
Attached Thumbnails ls3 swap cai-img_8058.jpg   ls3 swap cai-img_8059.jpg  
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Old Sep 22, 2010 | 01:57 PM
  #9  
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From: fresno ca
Car: 89 IROC-Z
Engine: 6.2 LS3
Transmission: MN12 T56 GTO
Axle/Gears: 3.73
Re: ls3 swap cai

Originally Posted by Pocket
Cheap spectre 4" filter
2x 4" strait connectors with T-bolts
4" 90* mild steel exhaust tubing
4" 45* mild steel exhaust tubing cut in half mid bend and welded to the 90*

Tight fit, looks great, works great, good MAF readings, reasonable IATs, inexpensive compared to a prebuilt piece

looks pretty good any one else want to chime in?
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Old Sep 22, 2010 | 02:24 PM
  #10  
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From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: ls3 swap cai

I was looking at some of the cheap 4th gen / gto kits on ebay. you can usually find em for under $100. dont mind doing a little bit of cutting if needbe for that price.
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Old Sep 22, 2010 | 03:41 PM
  #11  
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Re: ls3 swap cai

If you can find one for that price, buy it. DIY things like mine are nearly that in materials

The two 4" bends are nearly $50, plus the $30 filter. Couplers $8 ea and clamps about $4 ea

Then I had to weld it together
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Old Sep 23, 2010 | 01:05 AM
  #12  
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From: Baldwin Park
Re: ls3 swap cai

i thought about making my own but loved the looked of the New Era CAI's. About $250 for the LS2 version with the 90mm TB.

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Old Sep 23, 2010 | 02:41 AM
  #13  
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From: Eastern VA
Car: 92 Camaro RS
Engine: LS2
Transmission: T56
Axle/Gears: 12-Bolt with 3.73
Re: ls3 swap cai

I used an '06 GTO K&N kit for mine. I cut it just after the elbow that goes into the TB and turned it 180* to move the conical air filter down behind the driver side headlights. I made an airbox out of thin stainless steel to seal the cavity up to the hood. I can't get pics cause I'm overseas. I would be willing to bet that making your own out of separate components is significantly cheaper than buying a kit and modifying it though.
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Old Sep 24, 2010 | 06:23 PM
  #14  
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From: fresno ca
Car: 89 IROC-Z
Engine: 6.2 LS3
Transmission: MN12 T56 GTO
Axle/Gears: 3.73
Re: ls3 swap cai

Originally Posted by sargenewk17
I used an '06 GTO K&N kit for mine. I cut it just after the elbow that goes into the TB and turned it 180* to move the conical air filter down behind the driver side headlights. I made an airbox out of thin stainless steel to seal the cavity up to the hood. I can't get pics cause I'm overseas. I would be willing to bet that making your own out of separate components is significantly cheaper than buying a kit and modifying it though.
pic would be great, are the 06gto as same as the 05 gto?
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Old Feb 19, 2011 | 04:19 PM
  #15  
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From: fresno ca
Car: 89 IROC-Z
Engine: 6.2 LS3
Transmission: MN12 T56 GTO
Axle/Gears: 3.73
Re: ls3 swap cai

any other suggestions im still deciding.
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Old Feb 19, 2011 | 06:29 PM
  #16  
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From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: ls3 swap cai

I'm playing guinea pig here, just ordered one of these:
http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT

wont be on the car any time soon though - still has about a foot of snow on it....
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Old Feb 19, 2011 | 07:39 PM
  #17  
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Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
Re: ls3 swap cai

New 4' cai. Made out of a u bend and a 12 inch peice of silicone.
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Old Feb 19, 2011 | 07:59 PM
  #18  
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: ls3 swap cai

I'll post up the one I made for my car and the one on my dads car. They're a little different from each other as mine goes down through the sheet metal tray and in front of the wheel, his is completely in the engine bay. I'll post them later I'm out with wifey right now.
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Old Feb 19, 2011 | 11:57 PM
  #19  
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From: Cincinnati, Ohio
Car: '89 GTA
Engine: 5.7L LS1
Transmission: 4L60E
Axle/Gears: 9 bolt 3.27
Re: ls3 swap cai

Originally Posted by Pocket
Cheap spectre 4" filter
2x 4" strait connectors with T-bolts
4" 90* mild steel exhaust tubing
4" 45* mild steel exhaust tubing cut in half mid bend and welded to the 90*

Tight fit, looks great, works great, good MAF readings, reasonable IATs, inexpensive compared to a prebuilt piece


Is that thing at all awkwardly heavy pocket? I already have the same materials you used to make that at my disposal but I was afraid it would be a tad bit on the heavy side compared to one made out of the thin aluminum tubing for a relatively equal price.
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Old Feb 20, 2011 | 12:34 AM
  #20  
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Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: ls3 swap cai

Mine:

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My dad's:


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Old Feb 20, 2011 | 10:01 AM
  #21  
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Car: 89 Formula / 09 G8
Engine: LS1 / LS3
Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
Re: ls3 swap cai

Not the best pic, but you get the idea. 4" aluminum. Sounds like the worlds most powerful vacuum at idle, anyone else have the same sound?

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Old Feb 20, 2011 | 12:17 PM
  #22  
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From: Alabama
Car: 1986 camaro
Engine: ls2
Transmission: FLT stage 6 60e
Axle/Gears: 8.8 with 3.73's
Re: ls3 swap cai

Originally Posted by Omega
anyone else have the same sound?
kerby here also!
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Old Feb 20, 2011 | 12:38 PM
  #23  
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From: Gällivare Sweden
Car: 1989 Iroc
Engine: LS2
Transmission: GTO T-56
Axle/Gears: 4:th gen Auburn with 3:73
Re: ls3 swap cai

Here some pics of my 4" aluminum tubing on my LS2 swap Iroc.
90 degree silicone bend and 45 degree alu tube. Huge K/N filter that gets some cold air from a hole in the drivers side battey tray.
Attached Thumbnails ls3 swap cai-ytterliggare-en-sn-skotur  
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Old Feb 20, 2011 | 12:38 PM
  #24  
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Re: ls3 swap cai

Is that thing at all awkwardly heavy pocket? I already have the same materials you used to make that at my disposal but I was afraid it would be a tad bit on the heavy side compared to one made out of the thin aluminum tubing for a relatively equal price.
About 5lbs with the filter. I chose steel over aluminum because I cant weld alum
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Old Feb 20, 2011 | 12:41 PM
  #25  
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From: Gällivare Sweden
Car: 1989 Iroc
Engine: LS2
Transmission: GTO T-56
Axle/Gears: 4:th gen Auburn with 3:73
Re: ls3 swap cai

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