914-6 Hole in Firewall |
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914-6 Hole in Firewall |
morehills |
Feb 29 2024, 06:30 AM
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#1
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Newbie Group: Members Posts: 29 Joined: 2-March 23 From: Great Barrington, MA Member No.: 27,202 Region Association: North East States |
I'm doing a fairly large project on the interior of my 1971 914-6 GT clone this winter. I'm converting to 911 steering and ignition, adding a GT roll bar and harness mounts and a few other bits and bobs.
While it's open, should I cut an access panel? Is there any impact on the structural integrity of the firewall? How difficult is it to lean over the engine and adjust timing without the access panel? While it would be more convenient, I wonder if it's really needed to properly time the car every few years. It's a '71 2.2 liter "E" cam engine. Thanks for any advice. John Attached image(s) |
Superhawk996 |
Feb 29 2024, 08:29 AM
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#2
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914 Guru Group: Members Posts: 5,869 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
I haven’t read that thread in a while.
Here’s the thing that isn’t even discussed in that thread. An air cooled engine is way louder than a water pumper. OEMs go to great lengths to seal even the tiniest holes in a modern firewall? Why? NVH (Noise Vibration Harshness) It is amazing how much sound can be transmitted through even the smallest holes, unsealed weld seams, and past rubber grommets, and foam. All modern cars have multi layer NVH solutions to help quiet things down. But it all starts with minimizing protrusions through the sheetmetal. |
Lo-Fi Version | Time is now: 28th May 2024 - 08:42 PM |
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