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L88 induction

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Old Nov 29, 2001 | 10:56 AM
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Default L88 induction

Is there more horsepower to be had running an L88 hood and induction than running the hood with just the stock air cleaner
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Old Nov 29, 2001 | 11:28 AM
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Default Re: L88 induction (69ttop502)

In almost every way you can think of...yes. If you use the full L-88 hood to include the air box, your intake will only get air from outside the engine bay which is much cooler. Also, considering that the hood is cowl-inducted, you will achieve a very slight positive pressure from the high-pressure air at the cowl. Realistically though, your power will come from the outside air and a free-flowing air cleaner system.
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Old Nov 29, 2001 | 12:02 PM
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Default Re: L88 induction (69ttop502)

Is there more horsepower to be had running an L88 hood and induction...
That's exactly why GM add them for the L88 option. :)
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Old Nov 29, 2001 | 04:52 PM
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Default Re: L88 induction (69ttop502)

you increase your HP 1% for every 10 degrees you lower the air inlet temp to your carb. :chevy
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Old Nov 29, 2001 | 05:17 PM
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Default Re: L88 induction (69ttop502)

My original cowl induction on my 73 also had snorkles that would draw air from under the hood as well as from the cowl. I used sheet metal to block the snorkles and force all the air to be drawn from the cowl. My last outing at the track I tested just this. 2 out of 7 runs I removed the air cleaner completely and drew underhood air. The car ran between 2 and 3 tenths better with the air cleaner on and cowl induction functional. Might be just a fluke, but the car does not run better without cowl induction. In some applications, colder denser air will allow bigger jets for a bit more power.
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Old Nov 29, 2001 | 09:04 PM
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Default Re: L88 induction (gerry72)

In almost every way you can think of...yes. If you use the full L-88 hood to include the air box, your intake will only get air from outside the engine bay which is much cooler. Also, considering that the hood is cowl-inducted, you will achieve a very slight positive pressure from the high-pressure air at the cowl. Realistically though, your power will come from the outside air and a free-flowing air cleaner system.
Ditto what Gerry said....FYI, the K&N replacement filter for the stock one will fit in the airbox w/ some one-sided adhesive weatherstripping trimmed to size to obtain proper sealing.
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Old Nov 29, 2001 | 09:48 PM
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Default Re: L88 induction (Les)

Your 502 should be about the same height to matchup pretty closely yo the air chamber too.

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