Best place to mount a 6AL box? - ClassicOldsmobile.com


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Old April 3rd, 2017, 09:56 PM   #1
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Best place to mount a 6AL box?

I splurged and bought one for my 70S, looking for a trouble free install. Thanks
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Old April 4th, 2017, 05:12 AM   #2
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It really depends on how much trouble you want to go through. Keeping it under the hood is the easiest. Most mount it to the firewall or on the wheel well.
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Old April 4th, 2017, 06:24 AM   #3
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Ditch the charcoal canister and put it behind your passenger's headlight.
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Old April 4th, 2017, 06:53 AM   #4
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No charcoal canister there, just need to be careful opening the rad cap and don't have it too close to my added overflow if I go there. Thanks
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Old April 4th, 2017, 06:56 AM   #5
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No charcoal canister there...
Right. I suppose this is for your 70 in your signature? Let us know where you install it.
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Old April 5th, 2017, 12:27 PM   #6
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Right. I suppose this is for your 70 in your signature? Let us know where you install it.
It is the 70S and I will show pics.
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Old April 5th, 2017, 04:39 PM   #7
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I put mine under the screen for the air intake at the base of the windshield. I made a light gauge cover and painted it black. It is virtually invisible--which was my object.
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Old April 5th, 2017, 08:24 PM   #8
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under the dash board and it will be dry and not subjected to the elements of any kind. just do the wiring correctly.
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Old April 5th, 2017, 08:32 PM   #9
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Under the dash sounds good. This is a Mallory 6AL since hooking it to my Mallory Magnetic Breakerless is super easy and I can make it look close to stock.
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Old April 10th, 2017, 09:11 AM   #10
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On my 70 442 I mounted it on the inner wheel well, drivers side behind the battery. I can access it easily to change rpm chips if needed, but is generally hidden from sight.
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Old April 10th, 2017, 08:13 PM   #11
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Another spot to consider, I am liking inside and the Mallory doesn't need chip changes, thinking a bit over 5000 rpm for the rev limiter.
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Old April 11th, 2017, 12:53 AM   #12
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Mine "failed" while in an under hood location. There was no moisture problem, but likely could have been a heat problem, as most semi-conductors are heat sensitive. I'd recommend wherever it stays the coolest, especially if it operates in a hot climate. If the car has A/C I'd tend to recommend the passenger compartment. Under the hood gets more air flow, but in the passenger compartment gets lower temperatures in a hot climate. Which results in a lower operating temperature of the unit, I don't know. Perhaps call the technical people at the manufacturer.
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Old April 13th, 2017, 06:59 AM   #13
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No A/C but our Summer's haven't been very hot but that will change at some point. I think inside is the safest bet under the dash, I leave the fresh air vents open all Summer.
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Old April 13th, 2017, 12:56 PM   #14
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Im going to an msd here real soon. Im mounting it right on the underside of the dash facing the trans tunnel or trans tunnel with small mounting brackets . Looks are secondary to function as well as accessibility . Wont look horrible but then again i dont really have an interior. I dont think trim panels , carpet , and racing buckets count as one lol.
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Old April 13th, 2017, 02:44 PM   #15
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Why not remove your glove box and make a bracket to mount it in there behind the door? Out of site and easy to access.
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Old April 13th, 2017, 03:59 PM   #16
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The shorter the wires the better.
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Old April 13th, 2017, 04:01 PM   #17
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Why not remove your glove box and make a bracket to mount it in there behind the door? Out of site and easy to access.
I like it, we may have a winner.
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Old April 19th, 2017, 11:13 PM   #18
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I have it mounted to the glove box door and I currently running the wiring, should work awesome.
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Old April 20th, 2017, 03:48 AM   #19
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Make sure any grounds are to the car body and not the door.
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Old April 20th, 2017, 06:02 AM   #20
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Make sure any grounds are to the car body and not the door.
Thanks, this was a great suggestion. I need to lengthen, solder and heat shrink all the connections anyways, so yes to under the dash on the driver's side ground and the motor itself as well. I am also adding an inline fuse on the main power wire as well.
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Old April 22nd, 2017, 11:39 AM   #21
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Just my 2 cent i mounted mind inside car top of side of A/C Box, out of sight, great location its velcro to the top easy access if you every have to change.
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Old April 26th, 2017, 10:15 PM   #22
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MSD does not recommend installing the ignition box inside any enclosure such as the glove box because of heat build up. I mounted mine on the lower dash below the glove box. Easy access to change rev limiter settings, or for adding any other electronics. You should also be sure to use the rubber vibration dampening mounts. Follow the instructions and run the large hot and ground wires directly to the battery. Do not ground to frame, or body.
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Old April 27th, 2017, 07:23 AM   #23
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On my 66, I made a shallow glove box out of sheet metal, with a plexiglass back (so I could show the MSD 7AL3 box if desired). I mounted the MSD on an aluminum plate and then to the steel cross brace at the bottom of the dash. I can remove two nuts and drop the MSD down to the floor if I need to do something to it. Since the dash did not have a radio, I added the radio brace to help support the weight. I am using the rubber dampers between the MSD and the aluminum plate, and the box is not inside the glove box, but in the open space behind it. Plenty of room and there is no heater in the way.
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Old April 27th, 2017, 07:42 AM   #24
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On my 66, I made a shallow glove box out of sheet metal, with a plexiglass back (so I could show the MSD 7AL3 box if desired). I mounted the MSD on an aluminum plate and then to the steel cross brace at the bottom of the dash. I can remove two nuts and drop the MSD down to the floor if I need to do something to it. Since the dash did not have a radio, I added the radio brace to help support the weight. I am using the rubber dampers between the MSD and the aluminum plate, and the box is not inside the glove box, but in the open space behind it. Plenty of room and there is no heater in the way.
I considered there as well. Mine is now mounted to the door and wired in. I have fixed the latch with Epoxy and a 1/2" bolt. The bolt threads push and latch the mechanism. Remove it and it opens right up. Time will tell if it is a good spot.
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Old April 27th, 2017, 03:31 PM   #25
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on my 70 442 i mounted it on the inner wheel well, drivers side behind the battery. i can access it easily to change rpm chips if needed, but is generally hidden from sight.
x2
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