cold air intake
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
What are you trying to achieve? I would say that if you have a MAF, that is going to be your biggest restriction. We did try it on my motor with the stock system and totally nothing on a dyno and got a couple HP more maybe? I do have SD so that might differ. I did put a K&N and cut out the ***** so it flows better and compared that with nothing.
Safety Car
Joined: Nov 2009
Posts: 3,973
Likes: 341
From: Adelaide South Australia
What are you trying to achieve? I would say that if you have a MAF, that is going to be your biggest restriction. We did try it on my motor with the stock system and totally nothing on a dyno and got a couple HP more maybe? I do have SD so that might differ. I did put a K&N and cut out the ***** so it flows better and compared that with nothing.
Le Mans Master
Joined: Jul 2009
Posts: 6,381
Likes: 66
From: SF bay area C.A.
C4 of the Year Finalist
This is how I have started, havent connected the inside up yet. Since the pic was taken I have painted it the
body color except for the screen..
body color except for the screen..
Last edited by kimmer; Apr 3, 2016 at 10:52 PM.
Pro
Joined: Mar 2004
Posts: 654
Likes: 18
From: Linthicum MD
Nice work. Wish I could have made the incision at the plate instead of the radiator shroud. State of Maryland has given me enough tickets for not having my front plate attached.
Pro
Joined: Sep 2014
Posts: 588
Likes: 35
From: Smithfield VA
Stock.
The intake for the '92 LT1 is the same intake the LT5 ZR1 uses. If it can handle providing the LT5 with enough air for 400 HP, it is not restricting your 300 HP LT1 one bit. Cold Air intakes on a LT1 offer no power increases over the stock intake. This how it was explained to me when I was thinking about a cold air intake for my '92 LT1. Cosmetics is the only reason for adding a cold air intake.
The intake for the '92 LT1 is the same intake the LT5 ZR1 uses. If it can handle providing the LT5 with enough air for 400 HP, it is not restricting your 300 HP LT1 one bit. Cold Air intakes on a LT1 offer no power increases over the stock intake. This how it was explained to me when I was thinking about a cold air intake for my '92 LT1. Cosmetics is the only reason for adding a cold air intake.
Last edited by 1stVetteFinally; Apr 4, 2016 at 07:56 AM.
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Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
Given where the inlet has to be, how much colder is it going to be to justify the cost and/or labor?
Pro
Joined: Mar 2004
Posts: 654
Likes: 18
From: Linthicum MD
I bought a used radiator shroud and cut it while it was outside the car. Cost was $35.00. With the cutout, my engine temps have decreased on average by 10-15 degrees. My throttle response and top end have improved because of the cooler air. One negative is the dust that makes its way into the engine bay.
Melting Slicks
Joined: May 2000
Posts: 2,029
Likes: 63
Years ago I installed a temp gauge sender to the airbox (cut lid) and observed the readings in the cockpit while driving.
When the car was not moving the temps started to rise but immediately when car started to move hot air was replaced with outside temp air and the reading dropped. Driving slowly was enough, no highway speeds needed.
So, when you are driving the engine doesn't get heated engine bay air, it sucks outside air. The factory design actually works.
Result: I didn't buy a cold air kit.
When the car was not moving the temps started to rise but immediately when car started to move hot air was replaced with outside temp air and the reading dropped. Driving slowly was enough, no highway speeds needed.
So, when you are driving the engine doesn't get heated engine bay air, it sucks outside air. The factory design actually works.
Result: I didn't buy a cold air kit.
Intermediate
Joined: Mar 2016
Posts: 47
Likes: 0
From: Rancho Santa Margarita California
Thinking of doing what your doing
Iv'e seen this method but was unsure on how to accomplish it. How did you put together this setup? from cutting the front plate out to how you ducted the ait intake their.