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.

when is the stock airbox a restriction

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Old May 7, 2006 | 10:22 PM
  #1  
Kory-88Iroc 350 tpi's Avatar
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From: New Berlin Wi
Car: 88 Iroc
Engine: 94 lt1 modded
Transmission: t 56
when is the stock airbox a restriction

I have the dual snorkel airbox on my car. I have removed the splash shields and cut the bottom of the boxes out. I have also opened up and smoothed out the entry where it meets the maf. I also have duct work down behind the fog lights to get cold air.
This setup worked fine with my old hotcam set up and the car trapped a best of 114mph. I upgraded to an LE2 last summer. Now the car is moving alot more air. I havent dynoed it yet, but If I can get all my ducks in a row it should make 400 plus rwhp. Is it time for some kind of custom cold air set up?
Thanks for your thoughts.
Kory

btw long tubes and a new exhaust are also in my immediate future.
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Old May 8, 2006 | 12:22 AM
  #2  
90firebird's Avatar
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Joined: Oct 2002
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From: Los Angeles, Ca.
Car: Base Firebird
Engine: TPI 350
Transmission: T56
Axle/Gears: D44
this was done to the camaro split intake on vincentz28's car. He's putting 373 hp to the ground and I was at the dyno when he tested this and saw a 9 hp gain.

https://www.thirdgen.org/forums/tpi/...ir-intake.html
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Old May 8, 2006 | 07:51 AM
  #3  
Klortho's Avatar
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Joined: May 2004
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
I would say that the stock airbox no matter how much is cut out at the bottom would be restrictive on the Camaro's. You're taking a whole bunch of air, shoving it into a little flat space (which will heat the air up a bit) and trying to ram it down 58mm TB. I say put a CAI on it.
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Old May 8, 2006 | 03:02 PM
  #4  
Knyghtmare's Avatar
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Joined: Jun 2003
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From: Hartland, WI
Car: 1991 Camaro
Engine: 2000 LS1
Transmission: 4L60E SS3600
I really like what INTIMIDATOR Z did to his car for a cold air intake.

https://www.thirdgen.org/forums/fabr...ir-intake.html

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Old May 8, 2006 | 03:32 PM
  #5  
Kory-88Iroc 350 tpi's Avatar
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From: New Berlin Wi
Car: 88 Iroc
Engine: 94 lt1 modded
Transmission: t 56
Thanks for the replys.
What I have now isn't much different than the first post. I agree that I need more though. Thanks for confirming my thoughts.

Hey Tyler
Are you driving that beast yet?
Kory
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Old May 8, 2006 | 04:01 PM
  #6  
1BADROC's Avatar
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From: southwest va
Car: 1989 IROC-Z
Engine: 350
Transmission: T-56
Axle/Gears: 9bolt 3.27
get ram air works great.
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Old May 8, 2006 | 04:54 PM
  #7  
Ramair21's Avatar
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From: stockton, CA
Car: Camaro RS/SS
Engine: 5.7 LS1
Transmission: 4L60E Transgo shift kit, 3500 stall
Axle/Gears: 4th Gen Rear 3:42
Looks like his hood hits the intake pipes??? Cant belive it fits under there
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Old May 8, 2006 | 07:43 PM
  #8  
Knyghtmare's Avatar
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Joined: Jun 2003
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From: Hartland, WI
Car: 1991 Camaro
Engine: 2000 LS1
Transmission: 4L60E SS3600
Originally Posted by Kory-88Iroc 350 tpi
Hey Tyler
Are you driving that beast yet?
Kory
I was a little, but now its all torn down waiting for the 4L60E and my 4th gen guages/dash swap. I am trying to have it ready for ThirdGen fest in 3 weeks.
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Old May 8, 2006 | 08:30 PM
  #9  
90firebird's Avatar
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Joined: Oct 2002
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From: Los Angeles, Ca.
Car: Base Firebird
Engine: TPI 350
Transmission: T56
Axle/Gears: D44
Originally Posted by Ramair21
Looks like his hood hits the intake pipes??? Cant belive it fits under there
He cut a section out of the underhood bracing
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