I have multiple CDI boxes and am planning on installing them both on my 340/S project. How is the proper way to install these? I'm assuming that both units were all wired up and all you had to do was unplug the one unit and plug in the three leads to the second unit and you were good to go? Can they both be grounded to the same place? I have one good used working unit and one new rebuilt unit. I don't want to do anything wrong that would damage either one.
Thanks,
Troy
Running multiple CDI boxes
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HoosierDeereMan
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Running multiple CDI boxes
'72 400
'73 400, (2)500's, 600
'74 295/S (restored) 2010 HOF poker run survivor.
'75 800, JDX8,
'75 340/S 2011 & 2012 Vintage Challenge finisher.
'76 (2)400's
'78 Liquifire 340,440
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'73 400, (2)500's, 600
'74 295/S (restored) 2010 HOF poker run survivor.
'75 800, JDX8,
'75 340/S 2011 & 2012 Vintage Challenge finisher.
'76 (2)400's
'78 Liquifire 340,440
'79 Spitfire
"If it has Tits, Tires, or Tracks it's gonna cost you money!"
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ICCSF 108
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Running multiple CDI boxes
Troy, Mount it anywhere that you can plug in the wires easily with out adding or cutting wires. Also make sure that if you don't mount it to the motor that you have a good ground wire FROM the motor to the second box..
Kenny
Kenny
AKA: Kenny, Grumpy, Mr. Richard Head
"I Hunt For it, Purchase it, Haul it, Sometimes Repair it, Sometimes Break it, Then Fix it Again, Label it, Warehouse it, Talk About it, So NOW, HOW Can I Take Any Less $$ For It?"
"God I love the smell of KLOTZ in the morning, That smell, you know that Gasoline/Oil Smell, MAKES the whole place SMELL like.. LIKE VICTORY. You know someday the 2 strokers are gonna end..."
Do Anti-War Protesters have reunions? If so what do they TALK about?
"I Hunt For it, Purchase it, Haul it, Sometimes Repair it, Sometimes Break it, Then Fix it Again, Label it, Warehouse it, Talk About it, So NOW, HOW Can I Take Any Less $$ For It?"
"God I love the smell of KLOTZ in the morning, That smell, you know that Gasoline/Oil Smell, MAKES the whole place SMELL like.. LIKE VICTORY. You know someday the 2 strokers are gonna end..."
Do Anti-War Protesters have reunions? If so what do they TALK about?
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HoosierDeereMan
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Running multiple CDI boxes
Kenny, I planned on mounting them back to back in the original location. The stock wiring harness will reach both units this way.
I'm thinking I will need to fabricate a heat shield to protect the outside mounted unit from the expansion chamber heat. Am I thinking right or just making extra work for myself?
I'm thinking I will need to fabricate a heat shield to protect the outside mounted unit from the expansion chamber heat. Am I thinking right or just making extra work for myself?
'72 400
'73 400, (2)500's, 600
'74 295/S (restored) 2010 HOF poker run survivor.
'75 800, JDX8,
'75 340/S 2011 & 2012 Vintage Challenge finisher.
'76 (2)400's
'78 Liquifire 340,440
'79 Spitfire
"If it has Tits, Tires, or Tracks it's gonna cost you money!"
'73 400, (2)500's, 600
'74 295/S (restored) 2010 HOF poker run survivor.
'75 800, JDX8,
'75 340/S 2011 & 2012 Vintage Challenge finisher.
'76 (2)400's
'78 Liquifire 340,440
'79 Spitfire
"If it has Tits, Tires, or Tracks it's gonna cost you money!"
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WinnipegStPaul9
- Posts: 5577
- Joined: Sat Jul 23, 2005 12:00 am
- Real Name: Don Amber
- Location: Churubusco, IN
Running multiple CDI boxes
Troy, give me a few minutes and I'll get a picture of my mocked up idea. Definately need the ground strap, I ordered a new one from JD. AM52218. DA
Feel free to check out our website www.buscobullet.com for restorations or parts.
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WinnipegStPaul9
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- Location: Churubusco, IN
Running multiple CDI boxes
First of all, I want to show you my new all time favorite snack. AND it's only 80 calories
Attachments:
Attachments:
Feel free to check out our website www.buscobullet.com for restorations or parts.
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WinnipegStPaul9
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- Real Name: Don Amber
- Location: Churubusco, IN
Running multiple CDI boxes
OK, seriously here's my mocked up version of how I plan to do it. The heat shield is a Cyclone coil bracket that just happens to have the high energy warning label.............how cool is that.
Attachments:
Attachments:
Feel free to check out our website www.buscobullet.com for restorations or parts.
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WinnipegStPaul9
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- Joined: Sat Jul 23, 2005 12:00 am
- Real Name: Don Amber
- Location: Churubusco, IN
Running multiple CDI boxes
More pic's and remember this is a mock up...........not correct bolts, etc. Just to show the general idea.
Attachments:
Attachments:
Feel free to check out our website www.buscobullet.com for restorations or parts.
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WinnipegStPaul9
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- Joined: Sat Jul 23, 2005 12:00 am
- Real Name: Don Amber
- Location: Churubusco, IN
Running multiple CDI boxes
Feel free to check out our website www.buscobullet.com for restorations or parts.
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WinnipegStPaul9
- Posts: 5577
- Joined: Sat Jul 23, 2005 12:00 am
- Real Name: Don Amber
- Location: Churubusco, IN
Running multiple CDI boxes
I don't know how I missed it the first 100 times I looked at it but the CDI's are different with regard to where they plug in..............hmmmmmmmmmmmmm. DA
Feel free to check out our website www.buscobullet.com for restorations or parts.
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ICCSF 108
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- Real Name: Kenny Heins, AKA Grumpy
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- Contact:
Running multiple CDI boxes
Older Chevy V-8's ( 60's to maybe early 80's) used a ground strap from the valve cover bolts to??? (I think the intake manifold too long ago to remember where they went) & most mechanics removed them, so a salvage yard or old garage might have a bunch of these laying around..
Kenny
Kenny
AKA: Kenny, Grumpy, Mr. Richard Head
"I Hunt For it, Purchase it, Haul it, Sometimes Repair it, Sometimes Break it, Then Fix it Again, Label it, Warehouse it, Talk About it, So NOW, HOW Can I Take Any Less $$ For It?"
"God I love the smell of KLOTZ in the morning, That smell, you know that Gasoline/Oil Smell, MAKES the whole place SMELL like.. LIKE VICTORY. You know someday the 2 strokers are gonna end..."
Do Anti-War Protesters have reunions? If so what do they TALK about?
"I Hunt For it, Purchase it, Haul it, Sometimes Repair it, Sometimes Break it, Then Fix it Again, Label it, Warehouse it, Talk About it, So NOW, HOW Can I Take Any Less $$ For It?"
"God I love the smell of KLOTZ in the morning, That smell, you know that Gasoline/Oil Smell, MAKES the whole place SMELL like.. LIKE VICTORY. You know someday the 2 strokers are gonna end..."
Do Anti-War Protesters have reunions? If so what do they TALK about?
-
HoosierDeereMan
- Posts: 1089
- Joined: Thu Feb 01, 2007 1:00 am
- Real Name: Troy Miley
- Location: Oakland City, IN
Running multiple CDI boxes
DA,
The original CDI box that came on my sled has one white plug just like yours. However mine is covered in grunge!
The second box which is a rebuilt unit has the plugs just a little closer also like your second unit.
I like the heatshield!
The warning stickers are a added bonus.
We have a local farm store called Rural King. They have different length braided ground cables real close to the factory originals. Maybe I can get lucky and find one real close.
Attachments:
The original CDI box that came on my sled has one white plug just like yours. However mine is covered in grunge!
The second box which is a rebuilt unit has the plugs just a little closer also like your second unit. I like the heatshield!
The warning stickers are a added bonus.We have a local farm store called Rural King. They have different length braided ground cables real close to the factory originals. Maybe I can get lucky and find one real close.
Attachments:
Last edited by HoosierDeereMan on Mon Aug 25, 2008 10:05 pm, edited 1 time in total.
'72 400
'73 400, (2)500's, 600
'74 295/S (restored) 2010 HOF poker run survivor.
'75 800, JDX8,
'75 340/S 2011 & 2012 Vintage Challenge finisher.
'76 (2)400's
'78 Liquifire 340,440
'79 Spitfire
"If it has Tits, Tires, or Tracks it's gonna cost you money!"
'73 400, (2)500's, 600
'74 295/S (restored) 2010 HOF poker run survivor.
'75 800, JDX8,
'75 340/S 2011 & 2012 Vintage Challenge finisher.
'76 (2)400's
'78 Liquifire 340,440
'79 Spitfire
"If it has Tits, Tires, or Tracks it's gonna cost you money!"
-
Danzig
- Posts: 4431
- Joined: Wed Aug 17, 2005 12:00 am
- Real Name: Paul File
- Location: Van Orin, Illinois
Running multiple CDI boxes
Tractor supply has these braided ground straps and so does Farm and Fleet.
1973 JDX8
1978 Liquifire 340
1980 Liquifire 440 CC Racer
1980 Liquifire 440
1982 Liquifire 440
"Gotta Lick It Before You Stick It"
1978 Liquifire 340
1980 Liquifire 440 CC Racer
1980 Liquifire 440
1982 Liquifire 440
"Gotta Lick It Before You Stick It"
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400brian
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- Real Name: James T. Kirk
- Location: South Central Wisconsin
Running multiple CDI boxes
With heat being an enemy of electronics, I have wondered why some cooling air wasn't directed at this area.
The later hoods have some vent holes cut into the right hand side above the riders knee, I wonder if that helped reduce under-hood temps at all?
Good work Don, I have been pondering the same issue. I'd love to route some cooling air via scat hose toward the cdi boxes, but I don't know where to locate the intake. I'm not interested in cutting any holes in the hood or pan.
The later hoods have some vent holes cut into the right hand side above the riders knee, I wonder if that helped reduce under-hood temps at all?
Good work Don, I have been pondering the same issue. I'd love to route some cooling air via scat hose toward the cdi boxes, but I don't know where to locate the intake. I'm not interested in cutting any holes in the hood or pan.
Last edited by 400brian on Tue Aug 26, 2008 3:55 am, edited 1 time in total.
'09 Vintage Challenge Survivor, and I wasn't late for supper!
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72 400 restored, Father bought new in '71
73 X8 restored
'74 340 green machine
'74 X8 9 time VC finisher
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2 '75 340S 1 running, one on deck
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Matt
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Running multiple CDI boxes
Great topic. I was thinking about dual CDIs on the Sportfire, although I'll have to come up with something different since it was mounted right on the engine.
Matt - JDsleds.com Administrator-
HoosierDeereMan
- Posts: 1089
- Joined: Thu Feb 01, 2007 1:00 am
- Real Name: Troy Miley
- Location: Oakland City, IN
Running multiple CDI boxes
If you ran the dual filler tank on the 340/S it leaves the original gas filler hole vacant in the hood. You might be able to run a hose from inside the filler hole in the hood down to the cdi units. At speed I would think it would generate some air flow down to the cdi boxes.
Hum! Anybody have a dual filler tank they want to part with?
Hum! Anybody have a dual filler tank they want to part with?
Last edited by HoosierDeereMan on Tue Aug 26, 2008 9:48 pm, edited 1 time in total.
'72 400
'73 400, (2)500's, 600
'74 295/S (restored) 2010 HOF poker run survivor.
'75 800, JDX8,
'75 340/S 2011 & 2012 Vintage Challenge finisher.
'76 (2)400's
'78 Liquifire 340,440
'79 Spitfire
"If it has Tits, Tires, or Tracks it's gonna cost you money!"
'73 400, (2)500's, 600
'74 295/S (restored) 2010 HOF poker run survivor.
'75 800, JDX8,
'75 340/S 2011 & 2012 Vintage Challenge finisher.
'76 (2)400's
'78 Liquifire 340,440
'79 Spitfire
"If it has Tits, Tires, or Tracks it's gonna cost you money!"