C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

MSD box location

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Old Sep 29, 2009 | 07:54 PM
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Default MSD box location

Good day today picked up a 6al box off Craigslist for 65.00 looks like new,i wanted to get some thoughts on mount locating,since i've gone to the darkside I'm thinking where the air filter box was located,plenty of room,the car will never be drove in the rain,what do you guys think?
http://i31.photobucket.com/albums/c3...Picture340.jpg

http://i31.photobucket.com/albums/c3...Picture342.jpg

Last edited by MR NICE; Sep 29, 2009 at 07:57 PM.
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Old Sep 29, 2009 | 08:34 PM
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I think the location you've chosen is perfect since you don't have an intake assembly to contend with.

My MSD box has been on top of my battery for ages. I've decided to fabricate a custom bracket that will mount it in a level position on top of the support member that extends out from under passenger side hood latch. I bought an MSD mounting kit that includes an L-shaped aluminum plate, and it fits perfectly in this position without touching underneath the closed hood.
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Old Sep 29, 2009 | 10:43 PM
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my MSD was where the battery is. Of course my battery was behind the passenger seat
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Old Sep 29, 2009 | 11:22 PM
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leave it on the shelf so you don't have to worry about it crapping out on you.
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Old Sep 29, 2009 | 11:50 PM
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I mounted my MSD on an alumimum bracket above the battery. The bracket is fastened to the kickout on the firewall and one end is fastened to the lower quarter panel or vent with two screws at the top. This works well with the optima battery. (NO acid vapor). Short wire runs, cool area under the hood, and full access.
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Old Sep 29, 2009 | 11:51 PM
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Years ago I installed a breadbox-glovebox in the passenger dash. Looks stock, but is hinged and opens like a glovebox. My 6al has been there for years and I have had no issues.
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Old Sep 30, 2009 | 06:16 AM
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[quote=pr0zac;1571662987]leave it on the shelf so you don't have to worry about it crapping out on you.[/QUO
I think all the ignition boxes are a junk.They do nothing.And no place to put one on a vette that looks good.JMHO
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Old Sep 30, 2009 | 07:04 AM
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Since my car is supercharged, I don't have the air cleaner box any more. I mounted mine where it used to be, Just like your first picture. It has worked find in that location for me.
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Old Sep 30, 2009 | 07:20 AM
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Under the driver's side headlight for me - and they improve throttle response. Unhook it and find out yourself. I also like it for its rev. limiting ability as it cuts spark not fuel.
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Old Sep 30, 2009 | 07:32 AM
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Originally Posted by pr0zac
leave it on the shelf so you don't have to worry about it crapping out on you.
I'm sure most of the problems are owner mistakes,but I will carry a mod.just incase.I'm running it to a GM hei no big cash out lay if it gives me problems.
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Old Sep 30, 2009 | 09:34 AM
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its real hard hooking up the 4 or 5 color coded wires.
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Old Sep 30, 2009 | 10:14 AM
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Originally Posted by pr0zac
its real hard hooking up the 4 or 5 color coded wires.
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Old Sep 30, 2009 | 11:05 AM
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Originally Posted by pr0zac
leave it on the shelf so you don't have to worry about it crapping out on you.
ignorant statement #1
Originally Posted by lt1396corvette
I think all the ignition boxes are a junk.They do nothing.And no place to put one on a vette that looks good.JMHO
Ignorant statement #2

Originally Posted by MR NICE
I'm sure most of the problems are owner mistakes.
Winner!

I've sold, installed and used MSD products for 20 years, and 9 times out of 10 it's installer error. The 6AL in particular is a pretty bulletproof box. Of course, there are a lot of "keyboard crewchiefs" that will inject their opinions to the contrary.

MSD ignition amplifiers really come into play with modified engines, with forced induction engines really benefitting. The benefit on stock engines are mostly for fuel quality and/or extended spark plug changes. They will NOT add 10-20 HP to a stock engine by themselves, but allow more aggressive ignition timing (which can make more HP), ESPECIALLY in a carbureted application.


Congrats to the OP for getting a decent deal on a used 6AL, I think you'll like it. (and I mounted mine where the carbon canister used to sit on my '85 - under the headlamp).
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Old Sep 30, 2009 | 11:26 AM
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Originally Posted by RacerX70CC
ignorant statement #1
Ignorant statement #2



Winner!

I've sold, installed and used MSD products for 20 years, and 9 times out of 10 it's installer error. The 6AL in particular is a pretty bulletproof box. Of course, there are a lot of "keyboard crewchiefs" that will inject their opinions to the contrary.

MSD ignition amplifiers really come into play with modified engines, with forced induction engines really benefitting. The benefit on stock engines are mostly for fuel quality and/or extended spark plug changes. They will NOT add 10-20 HP to a stock engine by themselves, but allow more aggressive ignition timing (which can make more HP), ESPECIALLY in a carbureted application.


Congrats to the OP for getting a decent deal on a used 6AL, I think you'll like it. (and I mounted mine where the carbon canister used to sit on my '85 - under the headlamp).
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Old Sep 30, 2009 | 11:37 AM
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Mr Nice,
I ran my 6AL next to my CAI kit on the DS similar to what you are suggesting. I have a couple of rough pics if you want to see my install location. Just pm me your e-mail address.
Rick
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Old Sep 30, 2009 | 11:56 AM
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Here is how mine is "attached" to the car. My mechanic fabricated a bracket and is securely mounted. Mine however, did shoot craps after a couple of years....could have because of heat issues where I chose to locate mine though......don't know for sure if it was my issue due to poor location or a poor product.....

TPIS claims you must run an MSD if make power over 4500 RPM which I do; FWIW....good luck!
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Old Sep 30, 2009 | 12:01 PM
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Originally Posted by RacerX70CC
They will NOT add 10-20 HP to a stock engine by themselves, but allow more aggressive ignition timing (which can make more HP), ESPECIALLY in a carbureted application.
I would like an explanation on how the MSD will "allow more aggressive ignition timing". If it knocks without the MSD, what can the MSD do to eliminate the knock other than delay the spark?

RACE ON!!!
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Old Sep 30, 2009 | 12:07 PM
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Originally Posted by CFI-EFI
I would like an explanation on how the MSD will "allow more aggressive ignition timing". If it knocks without the MSD, what can the MSD do to eliminate the knock other than delay the spark?

RACE ON!!!
he knows what he is talking about.. he said so himself
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Old Sep 30, 2009 | 12:09 PM
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I mounted mine in the left hand headlight well.
My choice was based on getting it away from heat.
Been there for four years without fail.

All I did was seal up the wiring grommets with some RTV.
Mounted on a chunk of velcro.

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Old Sep 30, 2009 | 01:08 PM
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Originally Posted by 856SPEED


Here is how mine is "attached" to the car. My mechanic fabricated a bracket and is securely mounted. Mine however, did shoot craps after a couple of years....could have because of heat issues where I chose to locate mine though......don't know for sure if it was my issue due to poor location or a poor product.....

TPIS claims you must run an MSD if make power over 4500 RPM which I do; FWIW....good luck!
Nonsense. I've been running the stock Delco system in my turbocharged 355 for years. Runs smooth, and it's dependable. And, this is on road courses. (It's not just a short 12 or 13 second quarter-mile burst, and then coasting to let the electronics cool off, which seems to be the usage for most MSD units.)
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