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05-05-2017, 07:26 PM
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#1 |
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Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,685
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A look inside the LFX intake manifold...
About a month ago I ruined an LFX intake manifold, rather than throw it away, I decided to cut it open and show the world the magic inside the LFX intake manifold.
some still pics to follow. |
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05-05-2017, 07:28 PM
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#2 |
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Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,685
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      As you can see, each runner inlet has nice big radii. Almost like each runner has it's own individual velocity stack. There really isn't much you can do to make it any better on the inside, and it's practically impossible to get inside anyway without ruining the manifold. Sure I could pack it with filler everywhere, and try to reattach the sides I cut off, but I don't think it's worth it lol Sent from my iPhone using Tapatalk |
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05-05-2017, 08:42 PM
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#3 |
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Built Not Bought
Drives: 2010 Twin Turbo LFX Join Date: Jun 2016
Location: Massachusetts
Posts: 618
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the mad Scientist at Work !!!
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2010 Twin Turbo LFX
In Memory of my DAD Gone but never Forgotten 2014 "Built Not Bought!' Sponsors: OverKill Motorsports |
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05-05-2017, 09:47 PM
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#4 |
 
Drives: 2015 Camaro LT Join Date: Sep 2016
Location: Fox Lake, IL
Posts: 393
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Yes, this is very cool. So it seems the runners feed into the intake ports on the opposite side. So the air on the left side of the manifold is going into the right side of the engine, and vice versa. Yeah? If so, then I assume then that when the air enters from the front, it immediately goes hard left and hard right into the sides of the manifold, enters the runners, and then crosses over into the cylinders on the opposite side of the engine. Cool.
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05-06-2017, 02:22 PM
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#5 |
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Account Suspended
Drives: 2013 1LT RS Camaro Join Date: Apr 2016
Location: Southeast Michigan
Posts: 3,494
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Jason, your the man! Thanks for the inside look of the intake manifold. So how does the Extendolator help improve on GM's design and increase and change the torque curve? I am very happy with my purchase of your manifold spacers. My recent dyno graph showed that with your product, my torque curve stayed within 10% of peak torque from about 2950 rpms to 6750. Very impressed! Recommend the Extendolator spacer to antbody seeking increased performance from their LFX Camaro motor!
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05-07-2017, 08:37 AM
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#6 |
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Account Suspended
Drives: Camaro V6 Join Date: Oct 2016
Location: U.S.
Posts: 1,722
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Cool stuff. Are these manifolds ultrasonically/friction welded together? Just curious.
Comparing this intake to the new LGX, it looks like the LGX has more plenum area compared to the LFX from the outside shape. More plenum area to support the slight increase in displacement I assume. However, I wonder if there were any improvements in runner design compared to the LFX. Since your testing showed about a 10% improvement in flow versus the LFX intake, I guess GM probably did make some improvements in the runner design. |
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05-07-2017, 12:12 PM
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#7 |
 
Drives: 2018 SS 1LE Join Date: Apr 2013
Location: San Diego
Posts: 42
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I have not seen them side by side, any chance the LGX will fit on the LFX?
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05-08-2017, 08:01 PM
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#8 | |
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Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,685
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Quote:
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05-09-2017, 02:50 AM
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#9 |
 Drives: VEII MY12 Sportwagon 3.6L LFX V6 Join Date: May 2014
Location: AUSSIE
Posts: 58
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Thanks for that.
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05-02-2025, 01:37 PM
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#10 |
 
Drives: 2011 2LT/RS Join Date: Dec 2020
Location: OC Cal
Posts: 214
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Sure love those pics and videos.
Thank you for doing that! 
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