Twin plug install |
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Twin plug install |
BillJ |
Feb 18 2022, 02:45 PM
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#1
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Senior Member Group: Members Posts: 1,091 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
Has anyone here installed a twin plug into their car? I am having a 2.4 built and wanted to get some ideas on where to mount the msd's and coils. Any pictures of how you mounted and routed?
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mlindner |
Feb 18 2022, 03:25 PM
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#2
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Senior Member Group: Members Posts: 1,512 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest |
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SirAndy |
Feb 18 2022, 08:10 PM
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#3
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Resident German Group: Admin Posts: 41,606 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
I got a bracket for the coils (PMS i think) to mount them right above the dizzy(s).
No MSD box for me, the FI brain went under the dash ... (IMG:style_emoticons/default/bye1.gif) |
BillJ |
Feb 18 2022, 09:51 PM
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#4
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Senior Member Group: Members Posts: 1,091 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
Thanks for the suggestions so far. I have one coil already mounted on firewall passenger side and may mount second one next to it but i do like that clean bracket on the fan... I wonder if MSD makes a dual coil bracket? Also already installed is a single older msd unit in the trunk but it is analog and switching to digital for both. They have to be the same.
Ever any trouble with the msd overheating in the engine bay Mark? Will be only track so anticipate that there will be relatively high heat in there.... Battery is mounted in front for weight balance so i have space on the battery tray for sure. |
mlindner |
Feb 19 2022, 05:55 AM
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#5
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Senior Member Group: Members Posts: 1,512 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest |
Bill, no heat issues but only on the road last summer. I do have the GT style engine lid so lots of air and the engine is only a 2.2. Mark
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BillJ |
Feb 19 2022, 08:14 AM
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#6
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Senior Member Group: Members Posts: 1,091 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
I did get a gt lid as well just last month so hoping that will help temps in there. I do worry about getting too hot in there as the race motor will be run hard of course but never for more than an hour.
Andy - could not find a dual holder that goes on the housing for the msd. Does make the hop from coil to dizzy very tidy though! |
brant |
Feb 19 2022, 09:18 AM
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#7
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914 Wizard Group: Members Posts: 11,613 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
couldn't find any great photos of mine...
Here is a coil bracket we made from aluminum for weight... the tightening screw is also aluminum we made 2 of these.. put the coils on the firewall short coil wires to the dizzy put the MSD units on the cockpit side of the fire wall... passenger side, (behind the seat if we had one) short run between the coils and MSD units.. (grommet in the firewall) keeps the MSD out of as much water exposure... also a race car with no windows. Attached image(s) |
infraredcalvin |
Feb 19 2022, 11:05 AM
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#8
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Distracted Member Group: Members Posts: 1,509 Joined: 25-August 08 From: Ladera Ranch, CA Member No.: 9,463 Region Association: Southern California |
Attached thumbnail(s) |
BillJ |
Feb 19 2022, 12:09 PM
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#9
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Senior Member Group: Members Posts: 1,091 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
Like the idea of ignition boxes on the inside firewall. Have a second seat mount if i want to put the other one in so just need to make sure it clears the back.
Aluminum bracket is smart as well. I bought some msd brand mounts maybe return or at least drill out holes in it.... |
wndsrfr |
Feb 20 2022, 06:56 AM
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#10
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Senior Member Group: Members Posts: 1,428 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region |
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BillJ |
Feb 20 2022, 08:19 AM
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#11
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Senior Member Group: Members Posts: 1,091 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
Fuel crossover is on mine as well. I was told it helps make sure that you have high availability of fuel for the carbs. Particularly in race situations with high cornering forces.
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infraredcalvin |
Feb 20 2022, 11:01 AM
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#12
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Distracted Member Group: Members Posts: 1,509 Joined: 25-August 08 From: Ladera Ranch, CA Member No.: 9,463 Region Association: Southern California |
(IMG:style_emoticons/default/agree.gif) What he said? Came that way…. But I am still missing 100+ hp… (IMG:style_emoticons/default/blink.gif)
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Shivers |
Feb 21 2022, 01:47 PM
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#13
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Senior Member Group: Members Posts: 2,351 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
Fuel crossover is on mine as well. I was told it helps make sure that you have high availability of fuel for the carbs. Particularly in race situations with high cornering forces. Doh! More money to spend... (IMG:style_emoticons/default/idea.gif) |
campbellcj |
Feb 24 2022, 08:25 AM
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#14
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I can't Re Member Group: Members Posts: 4,540 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California |
I can't find decent pics at the moment but my MSD boxes are mounted inside the trunk on the firewall/bulkhead and the coils are in the engine compartment on the firewall near the dizzy itself. Has worked out fine but precludes an engine sound pad and (probably) storing the targa top in the trunk, not problems for my usage.
I have a carb fuel crossover as well. |
BillJ |
Feb 24 2022, 08:29 AM
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#15
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Senior Member Group: Members Posts: 1,091 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
Yes that is the single plug setup now for me. My roof is bolted to the cage so no worries for me either lol.
I think i am sold on the mounting the boxes on interior passenger side bulkhead and distributors engine side on firewall above the dizzy and short path between the coils and boxes. Seems clean and keeps the spark system clear of the heat. Will add pics as i progress. |
campbellcj |
Feb 24 2022, 08:31 AM
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#16
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I can't Re Member Group: Members Posts: 4,540 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California |
Found a couple. This gives you the idea re the coils -
(IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-21-1645713107.1.jpg) Ancient 2009 pic, cleaned-up wiring since then and eliminated tach adapter but mounting is still the same - (IMG:http://www.914world.com/bbs2/uploads_offsite/live.staticflickr.com-21-1645713108.2.jpg) |
BillJ |
Feb 24 2022, 08:33 AM
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#17
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Senior Member Group: Members Posts: 1,091 Joined: 4-March 13 From: charlotte, NC Member No.: 15,610 Region Association: None |
Very clean setup! Really nice indeed. I am concentrating on mechanicals for this refresh but definitely will be taking the body to bare at some point in the next few years.
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