LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Have we come to the conclusion that the air gap intake is a dud?

Old Aug 20, 2007 | 03:43 PM
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Have we come to the conclusion that the air gap intake is a dud?

Lot's of mixed opinions, nothing showing any real gains. I'm not cutting the product or the quality of the product. I just don't know if I should be happy that we have such a good factory intake or upset that the aftermarket can't improve on it. I guess it's good for an LT4 alternative but that's the only use I can justify at this point. I guess a good question would be how does a super vic setup affect even a mild setup? Does it totally kill it or what? I know, I know, some of you are gonna say that a mildly modded LT1 doesn't need it. That's not my question or the reason for the post. Question is what will the affect be even on a mild modded LT1, let's say cam only with all the bolt on goodies. What will the super vic setup do for it?
Old Aug 21, 2007 | 07:33 AM
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You've gotta be kidding, no1?
Old Aug 21, 2007 | 08:20 AM
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It is, what it is. An LTx replacement. I don't think I remember reading where it promised much more than that. As far as the single plane intakes, I can't remember seeing a whole lot of documented gains there either, as far as HP for the money goes. If I'm wrong, please post up some results.
Old Aug 21, 2007 | 10:19 AM
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On a cam only car the heads are going to be much more of a restriction than the intake would be. Considering a fully ported stock intake goes for about $200 and the work to make a single plane work is 2-3 times that at least, no it would not be worth it for that setup. Now if you had a good sized cam and good heads, then you might gain some top end, but for cam only, especially with a mile cam, not worth it, just get the stock one ported.
Old Sep 5, 2007 | 12:03 PM
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But you guys are missing something the main function of the air-gap intake is to drop the iat's and not heat soak as fast as a stock one which will add a few hp.
Old Sep 5, 2007 | 01:04 PM
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Originally Posted by mrz28 73/97
But you guys are missing something the main function of the air-gap intake is to drop the iat's and not heat soak as fast as a stock one which will add a few hp.
...but does it? is the question... A few HP is not much of a cost/benefit ratio.
Old Sep 5, 2007 | 03:45 PM
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Originally Posted by shoebox
...but does it? is the question... A few HP is not much of a cost/benefit ratio.
True, we don't have any back to back tests to prove anything by. I wonder if it's any benefit to just a stock engine. It may do wonders for a more modded engine but we may never know b/c we don't have any tests.
Old Sep 5, 2007 | 04:14 PM
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not until they make a composite air gap ported super-smoothed LT1 intake with water-cooling and it's own little radiator. that woud be cool
Old Sep 5, 2007 | 04:46 PM
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How could an intake with 1/2 the plenum volume of a stock intake be better?


David
Old Sep 5, 2007 | 06:03 PM
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The plenum volume is not reduced to half of stock.

The airgap thing get talked up as some wonderous benifit but let us think for a moment about just what air is flowing through there, hot air that just came through the radiator. So it is not going too cool much, granted it may heat the intake charge less than just aluminum exposed to hot engine oil in the lifter valley. IMO coating the intake bottom to reflect heat and the inside to insulate would be much more effective, one of the Impala guys found a coating that insulates very well and coated the inside and bottom for a .15 gain consistently on a bracket car. Doesn't have the BLING of the airgap but is provides the results I think you will find lacking in the airgap.

It has been tested on a modded engine, not as well a controlled test as one would want too see but was tested to the tune of 5hp on a 370rwhp car. That in no way impresses me.
Old Sep 5, 2007 | 06:30 PM
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Has edelbrock ever made anything worth while for the Lt1?
Old Sep 5, 2007 | 06:31 PM
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Originally Posted by 96capricemgr
The plenum volume is not reduced to half of stock.

The airgap thing get talked up as some wonderous benifit but let us think for a moment about just what air is flowing through there, hot air that just came through the radiator. So it is not going too cool much, granted it may heat the intake charge less than just aluminum exposed to hot engine oil in the lifter valley. IMO coating the intake bottom to reflect heat and the inside to insulate would be much more effective, one of the Impala guys found a coating that insulates very well and coated the inside and bottom for a .15 gain consistently on a bracket car. Doesn't have the BLING of the airgap but is provides the results I think you will find lacking in the airgap.

It has been tested on a modded engine, not as well a controlled test as one would want too see but was tested to the tune of 5hp on a 370rwhp car. That in no way impresses me.

Really? Look at this pic and tell me at LEAST a 1/3 of the plenum volume is missing vs a stock intake.I think it is more like 1/2. Yes it is SLIGHTLY taller...not enough to matter though.

[IMG][/IMG]

David
Old Sep 5, 2007 | 06:56 PM
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Originally Posted by FASTFATBOY
Really? Look at this pic and tell me at LEAST a 1/3 of the plenum volume is missing vs a stock intake.I think it is more like 1/2. Yes it is SLIGHTLY taller...not enough to matter though.

[IMG][/IMG]

David
David,

You know most of that area under there is hollow on the stock intake right? I know nothing of Edelbrocks airgap but some of us have cut up a stock intake to make it that way and they look the same... I can search for the pics if you interested...


*** EDIT ***
Here is the post with pics of the home made airgaps before the edlebrock came out...

http://web.camaross.com/forums/showthread.php?t=373158

Last edited by 1SlowFormula; Sep 5, 2007 at 07:00 PM. Reason: adding data
Old Sep 5, 2007 | 08:30 PM
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I stand corrected.


I would sue Edelbrock he he, they copied you.

David
Old Sep 5, 2007 | 09:14 PM
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Originally Posted by Heatmaker
Has edelbrock ever made anything worth while for the Lt1?
I have an Edelbrock/BBk 58mm TB, needed some tweaks and whistles but does not bind like the Hollys do and cost a whole lot less than the works of art AS&M sells.

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