Granatelli MPG Plug Wires - Bosch Fusion IRs
08-19-2009, 06:02 PM
#11
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You are comparing apples to oranges here. Your problem was due to the input voltage; a primary side issue. They are talking about the secondary side; output side. A coil is a transformer. The total output is measured in KVA. Going to 0 ohm wires will not short out or over load the coil. The spark still has to make the jump across the spark plug gap, that is enough resistance to limit the load on the coil. The only drawback to 0 ohm wires is you will get radio interference. Just like the other post stated. The engineers know the only way to stop the static interference is to add a resistor. That is why they haven't and won't call back. That is also the reason car manufacturers always use cheap quality, high resistance wires; they are quieter, no RF issues. Straight wires are cheaper to make, but you will always get RF static.
). Lowering the resistance on the secondary will cause a higher KVA draw through the coil. To measure a transformers impedence or resistance to power flow, you usually short out the secondary and raise the primary voltage till you get rated current. On distribution transformer for example its about 5-10% of rated voltage. Now with that in mind if your short the secondary and applied rated voltage to the primary you will get many times rated current on the secondary and if left on will very quicky destroy the transformer. Yes there is a certain "Resistance" for lack of a better word, at the spark gap. However once the spark ionizes the air and jumps the resistance will drop to practically nothing. At this point with "Zero" resistance wires there is nothing limiting the amount of current that will be allowed to flow as the field in the coil collapses. This will cause the spark to burn hotter, with more energy, and maintain longer. This is where the performance gains come from. You can't get more power at the plug without pulling that extra power though the coil.
The only question is how well built is the stock coil. Can it handle the extra power draw? Can't answer that without the design Data of the coil. My gut feeling is it won't cause it to fail outright. However it will most likely shorten its life by a few thousand miles.
08-31-2009, 01:15 PM
#13
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Yes you are correct that my example of primary voltage was not exactly the same, even though the end result would be the same. A ignition coil is basically an AC transformer(I know its in a DC circuit, or is it?). Lowering the resistance on the secondary will cause a higher KVA draw through the coil. ....
). Lowering the resistance on the secondary will cause a higher KVA draw through the coil. ....
08-31-2009, 01:20 PM
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-Read Product Features
Overall Rating 4 out of 5
Appearance 5 out of 5
Quality/Construction 4 out of 5
Ease of Use/Installation 4 out of 5
Features 4 out of 5
1 of 1 (100%) customers would recommend this product to a friend.
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MPG/PLUS GAS SAVING IGNITION WIRE SET
Price: $67.99Retail: $84.99Leading Discounter: $87.99
Availability: Will SHIP in 5-7 days
MPG/PLUS GAS SAVING IGNITION WIRE SET
Granatelli Performance Ignition Wire Set is GUARANTEED to boost your MPG to 15%!
Boosts horsepower and torque and ensures a smoother running engine
Rates 0-ohm resistance (compare to 4,000-7,000 ohms for conventional wires)
Easy DIY installation
Granatelli's MPG/Plus Performance Ignition Set is an easy way to significantly increase your gas mileage…not a bad idea these days! Also increases horsepower and torque for better engine performance and a more responsive ride. The MPG/Plus Performance Ignition Set features 0-ohm resistance solid stainless steel core wires plus an RFI/EFI Hybrid Protection Ring that prevents stereo noise and allows full coil power to reach the spark plug. The result is full power, a hotter spark, more complete combustion, better fuel efficiency, more power and better overall performance…without replacing the coil! Premium technology throughout: stainless steel inner core for high tensile strength, silver plated copper outer core for high conductivity, EPDM insulation, fiberglass braiding for strength, 500° silicone jacket and boots and heavy-duty stainless steel snap-lock terminals at the spark plug! Meets or exceeds OEM specifications. Limited lifetime warranty.
go to carparts dot com
cut and paste this after the .com
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I can't post the link because they are not a sponsor of the site
(got spanked for that offense last weekend
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08-31-2009, 01:47 PM
#16
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FYI, When I ordered my wires, the price in the shopping cart changed to $79.95. Finish the order and then immediately call their customer service to fix it. They are aware of the programming problem and they fix the prices immediately and charge you the proper amount when the product ships. Also, they are giving free shipping on those wires.
08-31-2009, 02:29 PM
#17
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I work with transformer for a living (I am an Electrical Engineer) and you can very easily pull more KVA through a transformer than its rated for. The only limit is the impedance of the coil. The impedance would have to be 100% or 1 per unit to limit the KVA at rated voltage. I just don't see how that would make any sense.
09-14-2009, 11:36 AM
#19
JK Super Freak
i was always told in trade school that 7500ohms per foot of wire is the most you want to see any more and its time for new ones.