Topic: Dynatek vs Magna 5 Ohm Coils

[evanphi]

Is there a difference other than brand name?

Can anyone attest to the quality of the Magnas? I know lots of people have good results with the Dynatek products.

This kit: http://4into1.com/magna-5-ohm-coils-and-caps-honda-cb750-1969-1978/

vs:

This
http://4into1.com/dynatek-5-ohm-black-coils-dual-output-dc8-1/
Plus
http://4into1.com/dynatek-dyna-ignition-wires-7mm-copper-core-black-dw-200/

[firebane]

Glad you posted this as I was looking those Magna coils as well as I'd like to upgrade mine to replaceable leads.

[Duanob]

Save yourself almost $50 on the Dynas:

http://www.ebay.com/itm/Dynatek-DC8-1-5-0-ohm-Coils-Dual-Output-Honda-CB500-CB500-CB400-CB350-1969-78-/191681504263?_trksid=p2141725.m3641.l6368#rwid

[firebane]

Save yourself almost $50 on the Dynas:

http://www.ebay.com/itm/Dynatek-DC8-1-5-0-ohm-Coils-Dual-Output-Honda-CB500-CB500-CB400-CB350-1969-78-/191681504263?_trksid=p2141725.m3641.l6368#rwid

Problem is that by the time I've invested into either 4into1 or that Ebay link I'm well over the $200 mark.

If I can spend half of that on coils I will.

[drumstyx]

"Current Stock:
Out of stock"

Will it ever come back in, I wonder though.

[evanphi]

"Current Stock:
Out of stock"

Will it ever come back in, I wonder though.

Well dang. There were two in stock this morning.

[Lostboy Steve]

I got mine on eBay but the guy had them listed wrong and so I snagged them for 50$ brand new. They are the older version 5ohm dual output. They work great.


Sent from my iPhone using Tapatalk

[Duanob]

Save yourself almost $50 on the Dynas:

http://www.ebay.com/itm/Dynatek-DC8-1-5-0-ohm-Coils-Dual-Output-Honda-CB500-CB500-CB400-CB350-1969-78-/191681504263?_trksid=p2141725.m3641.l6368#rwid

Problem is that by the time I've invested into either 4into1 or that Ebay link I'm well over the $200 mark.

If I can spend half of that on coils I will.

Not sure I follow your thinking. They are sold in pairs. $106 for the pair.

[firebane]

Save yourself almost $50 on the Dynas:

http://www.ebay.com/itm/Dynatek-DC8-1-5-0-ohm-Coils-Dual-Output-Honda-CB500-CB500-CB400-CB350-1969-78-/191681504263?_trksid=p2141725.m3641.l6368#rwid

Problem is that by the time I've invested into either 4into1 or that Ebay link I'm well over the $200 mark.

If I can spend half of that on coils I will.

Not sure I follow your thinking. They are sold in pairs. $106 for the pair.

106 + 24 = 130 USD = $170 CAD (depending on day of exchange)

[drumstyx]

Save yourself almost $50 on the Dynas:

http://www.ebay.com/itm/Dynatek-DC8-1-5-0-ohm-Coils-Dual-Output-Honda-CB500-CB500-CB400-CB350-1969-78-/191681504263?_trksid=p2141725.m3641.l6368#rwid

Problem is that by the time I've invested into either 4into1 or that Ebay link I'm well over the $200 mark.

If I can spend half of that on coils I will.

Not sure I follow your thinking. They are sold in pairs. $106 for the pair.

106 + 24 = 130 USD = $170 CAD (depending on day of exchange)

Cables connectors and caps run more than $24 too the Canadian dollar sucks so much right now

[evanphi]

There's also this option: http://www.ebay.com/itm/Magna-Dual-Output-Coil-5-ohms-Set-of-2-Honda-CB350F-400F-500K-550-750-/172464648744?hash=item2827b1b228

And just get the caps and wires locally.

Here's the dynatek's in Canadian dollars: https://fortnine.ca/en/dynatek-coil-5-0-ohm-12v-angled-dual-output-black-dc8-1

[evanphi]

Either I can replace the coils...

OR

What about splicing new wires with an NGK splice piece? This is really all I want to do, I just want some more length in my wires, and they are no longer flexible.

[drumstyx]

Either I can replace the coils...

OR

What about splicing new wires with an NGK splice piece? This is really all I want to do, I just want some more length in my wires, and they are no longer flexible.

I'm not an expert, but high tension wires are usually wear parts, with an interval of something like 6 years on many bikes. I wouldn't splice them. If you really need new wires (I can probably live with what I have for a bit) I'd get new coils.

[Duanob]

Ah, didn't know you're in Canada, well that's the high price of living in paradise, eh?

[evanphi]

Worth it.

[drumstyx]

FYI, it looks like it's just the NGK 102 degree cap that's out of stock, which is causing the cart system to mark it out of stock. The coils themselves are in stock...All the CB750 kits are 'sold out' there because of that one cap.

BUT, the coils are $95, only $12 less than the known and trusted Dynateks.

I might be wrong, it's a 120 degree connector in the image...I should check mine at home. You can 'build' the kit for $120 USD on the site, for a total of ~$140, which is $30 less than if you just bought the hardware from 4into1 and the dynatek coils on ebay.

[drumstyx]

FYI, this might be a better option for Canada -- free shipping http://www.ebay.ca/itm/Dynatek-Coil-5-ohm-Dual-Output-Coil-Honda-CB500-CB550-CB-350-400-500-550-69-78-/140792245936?hash=item20c7df2eb0:m:mWUbYuxWIuLFuo3ctGS9ehA&vxp=mtr

[RAFster122s]

There is a hack to cut into coils and replace wire where it terminates. Then you solder new wires to the coil output, pot this joint when verified you have good termination before potting the end, then youcover the rest with RTV or you could use epoxy putty, sand smooth, clean slap a littleenamel or other weather resistant paint over the epoxy.  Make the wires long enough for trimming more than 4 times.  That is at least an inch when you are cutting 1/4 inch of wire off for new or reattaching plug caps. 2" is what I would do.  If your old sleeves are removeable and will fit your new wires then slip them on the new wires after scrubbing clean with soap and water..the sleeves with numbers painted on to provide more heat insulation and uv protection plus IDing the wires.

Or, you can pick up a replacement pair of coilsfrom cb750 supply for $34 each, currently on sale.  They are 5 ohm points design coils.  Just need a new set of NGK plug end...5k ohm unless you are going to run resistor plugs or Iridium resistor plugs if your bike is running clean enoug to not foul a set of 40-45$us plugs.
HondaMan has recommended those coils as good replacement.

[drumstyx]

I bit the bullet for you, OP -- I bought the Magna kit, as it came back in stock. We'll see how it goes, but I don't have Dynateks to compare them to.

Now I need to figure out how crimping these works....

[evanphi]

I bit the bullet for you, OP -- I bought the Magna kit, as it came back in stock. We'll see how it goes, but I don't have Dynateks to compare them to.

Now I need to figure out how crimping these works....

I think I will too.

Did it. Shipping costs to Canada suck nuts.

[drumstyx]

Of note: the secondary resistance for the Magna coils (17,500 ohms) is different from the secondary resistance of the Dynatek coils (14,400 ohms).

I have no idea which is "better", as I have no idea what secondary resistance actually means.

EDIT: Just noticed the Magna ones advertise "over 30,000 volts per output" while Dyna coils advertise "over 40,000 volts per output". A difference, but probably not hugely significant, as I'm sure 30,000 volts is still much higher than whatever the stock coils were at.

[PeWe]

The Magna coil look like a Dynatek copy. Is it a new brand of coils?
I need coils for my K2 and the coils have increased in price since 2 years ago, maybe +25% or the $ currency only. I have not found any test/review of the Magna coil.
Edit: 3 years ago

[Deltarider]

Just noticed the Magna ones advertise "over 30,000 volts per output" while Dyna coils advertise "over 40,000 volts per output". A difference, but probably not hugely significant, as I'm sure 30,000 volts is still much higher than whatever the stock coils were at.

Adverisement bla and irrelevant for normal use. Your plugs probably will spark at 7000-9000 Volts allready. The sparkplug gap and the 'atmospheric circumstances' in the combustion chamber determine the voltage reached. A higher voltage is at the cost of a shorter spark duration. Nothing for free and there are no miracles here.

the secondary resistance for the Magna coils (17,500 ohms) is different from the secondary resistance of the Dynatek coils (14,400 ohms).

Around 14,4 kΩ is close to what OEM coils are, so that would be my pick. Primary impedance should be close to 4,7 Ω when your ignition operates at a standard dwell.

[Bvatlestad]

Did anyone come to a conclusion regarding the Dyna VS the Magna coils? Does the Magna coils work ok? It is a lot cheeper...

[drumstyx]

Did anyone come to a conclusion regarding the Dyna VS the Magna coils? Does the Magna coils work ok? It is a lot cheeper...

I never did run the bike with the stock coils, or anything but these Magna coils, and to be entirely transparent, it's always given me trouble starting and never run 100%. However, this was a full top-to-bottom rebuild, with aftermarket pipes, some screwups in the carbs, aftermarket air filter, and Hondaman's ignition system, so I really can't say anything about them compared to a stock, well-running bike.

Bottom line: They work. Whether they work better or worse than anything else is a question mark. Heck, I might throw on the old coils to give 'er a shot at some point though.