FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
Best way to mount a canister coil
Too much conflicting information. Can you mount it on its side or not? I wish it would fit in the factory mount and I’d just attach it to the head. Please show pics if you’ve done something besides just a loop mount to the firewall.
__________________
468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
#2
|
||||
|
||||
It’s my understanding if the coil is oil filled you want it vertical so the inner coil’s aren’t uncovered. Not sure how much of an angle is acceptable. If it’s an epoxy core coil it matters not. Looking forward to responses on this.
__________________
Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '69 LeMans Vert, 350, #47 heads: work in progress |
#3
|
||||
|
||||
Quote:
|
The Following User Says Thank You to 65 Lamnas For This Useful Post: | ||
#4
|
||||
|
||||
What coil did you buy?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#5
|
||||
|
||||
I have understood that conventional oil filled coils are supposed to be mounted to stand vertically;
Aftermarket coils which do not use oil, can be mounted horizontally.
__________________
1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#6
|
||||
|
||||
Quote:
__________________
Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '69 LeMans Vert, 350, #47 heads: work in progress |
#7
|
|||
|
|||
Oil-filled canister coils can be mounted in any position you can imagine, from straight-up to straight-down, and anywhere in between.
Mopar, Ford, and Jaguar used to lay 'em on their sides. Chevy mounted them entirely upside-down, with the coil wire coming out the bottom, and VW did essentially the same. Virtually everyone leaned 'em over a few degrees. I don't have a photo of the Chevy. Sorry. It's totally non-critical. The air bubble inside the coil is miniscule. The coil itself is sealed, if there's any leakage the coil was defective already. At this point it's difficult to find an oil-filled coil; most are epoxy-filled. And lots of modern cylindrical coils are high-failure Chinese crap anyway. BE CAREFUL what you buy. Last edited by Schurkey; 02-14-2024 at 09:19 PM. |
The Following 2 Users Say Thank You to Schurkey For This Useful Post: | ||
#8
|
||||
|
||||
I can’t believe this post!
In these types of coils the oil is used as the dielectric that stops the high voltage produced in the secondary winding from arcing back to the primary. These coils are fILLED with oil and can be mounted in any position you can dream up!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
The Following 2 Users Say Thank You to steve25 For This Useful Post: | ||
#9
|
||||
|
||||
https://www.cpperformance.com/instructions/120-8202.pdf Oil filled coils mount vertical and Epoxy any position according to MSD. Mount your coil to the back of the passenger head.
Here is a MSD coil compatibility list for different coils and boxes. not sure what your using. https://documents.holley.com/techlib...ompability.pdf
__________________
68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 4:11 gear. 29" slick. Best so far 9.95@134 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
#10
|
||||
|
||||
Quote:
|
The Following User Says Thank You to P@blo For This Useful Post: | ||
#11
|
||||
|
||||
Quote:
__________________
468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
#12
|
||||
|
||||
Quote:
__________________
Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '69 LeMans Vert, 350, #47 heads: work in progress |
#13
|
||||
|
||||
interesting replies.
I am not posting this to say I am correct (I am totally fine with being wrong); This is from that MSD pdf linked in post #9: Quote:
__________________
1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#14
|
|||
|
|||
Quote:
A properly-made oil-filled coil is totally non-sensitive to the angle it's mounted at. IF (big IF) you don't need an ignition coil with low primary resistance--for example, used with an ignition system using a ballast resistor--avoid heaps of trouble. Get your coil used in good condition from the Treasure Yard. An OEM Delco canister coil is probably about $5, and built far better than the brand-new "boutique" brands. |
The Following User Says Thank You to Schurkey For This Useful Post: | ||
#15
|
||||
|
||||
Quote:
__________________
68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 4:11 gear. 29" slick. Best so far 9.95@134 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
The Following User Says Thank You to chuckies76ta For This Useful Post: | ||
#16
|
||||
|
||||
With MSD, I assume it's a CYA thing. If the coil is upright and does leak, it's going to run longer before the air bubble inside gets large enough to cause failure. Mounted upside down, a leak will drain the can faster, the air bubble will grow until turn-to-turn arcing in the windings happens and poof goes the output. Production oil filled coils couldn't have high failure rates, the big 3 would own the supplier in short order. There is a built in incentive to have good QC when you're an automotive supplier, like 100K a day in fines if you shut a line down or cause a recall. Aftermarket, you just chuck it in the trash and buy another.
The only coil I've ever had fail was a yellow Accel oil filled coil, mounted upside down. It was mounted to the head of a chevy straight six. I think the key got left on, and the points ignition cooked the coil.
__________________
I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
The Following 2 Users Say Thank You to chiphead For This Useful Post: | ||
#17
|
||||
|
||||
We mounted mine inside the car behind the dash...no problems and it keep the engine compartment clean looking.
|
#18
|
||||
|
||||
My understanding is that vibration is the biggest killer of oil filled and solid coils. I won't mount them on an engine.
You want the coil to cap plug wire as short as possible as well. You take those 2 considerations into account, and you basically figured out where the coil should be mounted. .
__________________
. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
#19
|
|||
|
|||
Quote:
The problem now is not so much vibration, it's ****ty quality control and crappy design, direct from the aftermarket manufacturers who outsourced to low-wage countries in order to improve profit margins (not quality) and don't have to provide millions of coils each year all of them under a nationally-recognized 1-year or longer warranty. |
#20
|
||||
|
||||
Heat is the other killer of coils.
I understand that many OEs mounted coils on the engine but doesn't mean it's right or best. Look at other things OEs have done as an example, like pressed in rocker studs, non-adjustable valvetrains, substandard exhausts, and fit & finish. Yes, agree quality is a big issue, though depending on type/source, you can still find a decent coil and have them last. I find it interesting that many are/were hardcore advocates of HEI, some on the thread, and now are recommending going back to points. Would one have changed an HEI out for a points distributor if they had bought a car new with one? Or swapped out disc brakes for drums? Or removed fuel injection for a carb? That's how I'm seeing it on this thread. Just makes no sense to me to go backwards. .
__________________
. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
Reply |
|
|