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Old 03-10-2008, 12:41 AM   #1
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acel super coil pack

is anyone running one of these? whats the difference between this and the performance distributers setup? pro's/con's?

http://www.car-stuff.com/carparts/je...140021123.html

thanks,
Fox

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Old 03-10-2008, 08:55 AM   #2
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Fox your coil is already pretty hot so you won't need another one just replace your dist cap with one with brass plug wire fittings if you haven't and 8mm plug wires and you should be good to go.

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Old 03-10-2008, 02:32 PM   #3
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That has more volts than stock and that will allow for a bigger plug gap. Maybe a little better throttle response.
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flowmaster40,hpd30 with aussie locker,currie upper joints,4.88's, lca skids,chromo shafts,vanco brakes,d35 with super 35 and arb locker,re 4.5" springs,currie arms,re front uppers,Re shocks in back,walkerevens shocks up front, Re track bars with currie jj joints,anti rock,ss brake lines,re rear sway bar links,jks 1.25" bl and mml,bfg 35x12.5 km2's,craiger soft 8's,ome steering stabilizer,currie hd steering,rockmen front bumper,emp tank skid,lots more too.
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Old 03-10-2008, 04:54 PM   #4
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waste of money.. unless your OE coul is burnt out, or you cant find a 10dollar ebay one.
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Old 03-10-2008, 05:17 PM   #5
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I bought that exact same coil 7-8 years ago trying to cure an intermittent misfire problem and not only did it not cure the misfire (which proved to be a valve problem), the engine ran exactly the same during the periods of no misfires... there was no performance benefit I could discern whatsoever. The reason being the TJ's OE ignition system is pretty hot as is so it can pass the smog tests for the required 5 years, not like igition systems of years past used to be where hotter ignition systems made a definite improvement. That Accel coil is a complete waste of $$$ unless your OE coil has gone bad which is pretty unlikely until it's MUCH older.
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Old 03-10-2008, 07:14 PM   #6
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Quote:
Originally Posted by Jerry Bransford View Post
I bought that exact same coil 7-8 years ago trying to cure an intermittent misfire problem and not only did it not cure the misfire (which proved to be a valve problem), the engine ran exactly the same during the periods of no misfires... there was no performance benefit I could discern whatsoever. The reason being the TJ's OE ignition system is pretty hot as is so it can pass the smog tests for the required 5 years, not like igition systems of years past used to be where hotter ignition systems made a definite improvement. That Accel coil is a complete waste of $$$ unless your OE coil has gone bad which is pretty unlikely until it's MUCH older.
ok then, thanks jerry your advice is always welcome and wanted.

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Fox your coil is already pretty hot so you won't need another one just replace your dist cap with one with brass plug wire fittings if you haven't and 8mm plug wires and you should be good to go.
so if I did the 8mm plug wires with silicone jackets and a dist cap with the brass fittings shouldn't there be a rotor change too??? and if so which one?

also if I did go with the 8mm wires what should the gap be for the plugs? running a bigger wire usually means more spark going through them and hence a bigger gap in the plugs?
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Old 03-10-2008, 08:05 PM   #7
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For wires there is no need to open up the plugs. It wil have a hotter spark but not like a very strong coil that lets you open up the gap.
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Old 03-10-2008, 08:34 PM   #8
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[QUOTE=foxinthemudd;204315]ok then, thanks jerry your advice is always welcome and wanted.
QUOTE]

I guess my advice is not up to par yet Heck I even had msd ignition systems in my prior rides. made no difference in HP idle, nothing.

I only found it useful for FI systems.
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Old 03-10-2008, 09:02 PM   #9
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Quote:
Originally Posted by foxinthemudd View Post
ok then, thanks jerry your advice is always welcome and wanted.
I guess my advice is not up to par yet Heck I even had msd ignition systems in my prior rides. made no difference in HP idle, nothing.

I only found it useful for FI systems.
THANK YOU BPOWA! I DON"T KNOW WHAT I WOULD DO WITHOUT YOUR ADVICE!
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Old 03-11-2008, 09:22 AM   #10
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Yup new rotor,Cap(brass), and 8mm wires may not get you any more ponies but will help your engine run smoother and cleaner. Oh and glad my reply was welcome and wanted also
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Old 03-11-2008, 09:46 AM   #11
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I'll try to make this short without the deep details why but thicker heavier gauge or lower resistance spark plug wiring doesn't do what most people would expect it to do. First, there is SO little current (this is different from voltage) passing through the wiring that a heavier gauge wire is useless. It's like trickling water through a garden hose but switching to a fire hose because the fire hose can flow more water if required. The electric current in an ignition wire is a tiny trickle so it doesn't need a big gauge wire to easily flow what is flowing.

Next (and this has to do with Ohm's Law but I'll not get deep into that), that tiny amount of current is affected in such a tiny microscopic way by resistance in the ignition wiring that you could consider it nearly unaffected at all. And that resistance we're all aware of is actually placed into the wiring on purpose. Yes, it actually costs a little more to make ignition wiring with that resistance added to it. Why in the world do we want resistance in our spark plug wiring? To eliminate the spark (ignition) noise from our radios and audio systems. Even our spark plugs purposely have resistance added to them. If we were to swap in wiring and spark plugs without resistance in them, we wouldn't be able to listen to our AM radios due to the static we'd start hearing and the engine computer could even start having problems from the added electrical noise.

Why doesn't reducing the resistance somewhat help increase the spark voltage in the dramatic way some expect or even claim it does? Again, it'd due to the EXTREMELY low amount of current passing through the spark plug wiring. There is such a small amount of voltage dropped while passing through the resistance wiring that for all intents and purposes, you can nearly say no voltage is dropped. It all has to do with the formula E=IR where voltage is E, current is I, and resistance is R. Because I is so low, it's barely there at all, that I times R (the resistance in the wiring) produces very little E (voltage) which is how much the wire would be dropping the voltage.

So bigger diameter wiring doesn't do what many would expect it to, neither does lower resistance wiring. When you've got more than enough voltage to begin with, as the TJ's OE ignition system puts out, it's very hard to improve on it with different wiring or plugs, despite the various ignition wire company marketing department's best efforts to convince us otherwise.

More voltage to the plugs is helpful on older Jeeps like the CJ and YJ because they came with crappy ignition systems from the factory. Installing electronic ignitions will usually help them a lot! It's just that the TJ's ignition system is pretty good as is and there's not much you can do to improve it unless it has a problem somewhere.
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Old 03-11-2008, 06:41 PM   #12
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Quote:
Originally Posted by KicknJeep View Post
Yup new rotor,Cap(brass), and 8mm wires may not get you any more ponies but will help your engine run smoother and cleaner. Oh and glad my reply was welcome and wanted also


Quote:
Originally Posted by Jerry Bransford View Post
I'll try to make this short without the deep details why but thicker heavier gauge or lower resistance spark plug wiring doesn't do what most people would expect it to do. First, there is SO little current (this is different from voltage) passing through the wiring that a heavier gauge wire is useless. It's like trickling water through a garden hose but switching to a fire hose because the fire hose can flow more water if required. The electric current in an ignition wire is a tiny trickle so it doesn't need a big gauge wire to easily flow what is flowing.

Next (and this has to do with Ohm's Law but I'll not get deep into that), that tiny amount of current is affected in such a tiny microscopic way by resistance in the ignition wiring that you could consider it nearly unaffected at all. And that resistance we're all aware of is actually placed into the wiring on purpose. Yes, it actually costs a little more to make ignition wiring with that resistance added to it. Why in the world do we want resistance in our spark plug wiring? To eliminate the spark (ignition) noise from our radios and audio systems. Even our spark plugs purposely have resistance added to them. If we were to swap in wiring and spark plugs without resistance in them, we wouldn't be able to listen to our AM radios due to the static we'd start hearing and the engine computer could even start having problems from the added electrical noise.

Why doesn't reducing the resistance somewhat help increase the spark voltage in the dramatic way some expect or even claim it does? Again, it'd due to the EXTREMELY low amount of current passing through the spark plug wiring. There is such a small amount of voltage dropped while passing through the resistance wiring that for all intents and purposes, you can nearly say no voltage is dropped. It all has to do with the formula E=IR where voltage is E, current is I, and resistance is R. Because I is so low, it's barely there at all, that I times R (the resistance in the wiring) produces very little E (voltage) which is how much the wire would be dropping the voltage.

So bigger diameter wiring doesn't do what many would expect it to, neither does lower resistance wiring. When you've got more than enough voltage to begin with, as the TJ's OE ignition system puts out, it's very hard to improve on it with different wiring or plugs, despite the various ignition wire company marketing department's best efforts to convince us otherwise.

More voltage to the plugs is helpful on older Jeeps like the CJ and YJ because they came with crappy ignition systems from the factory. Installing electronic ignitions will usually help them a lot! It's just that the TJ's ignition system is pretty good as is and there's not much you can do to improve it unless it has a problem somewhere.
Quote:
Originally Posted by 4.0l sahara View Post
For wires there is no need to open up the plugs. It wil have a hotter spark but not like a very strong coil that lets you open up the gap.
I just wanted to thank you all for all your wonderful help on this issue. however jerry gets the most points
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Old 03-11-2008, 07:23 PM   #13
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Quote:
Originally Posted by Jerry Bransford View Post
I'll try to make this short without the deep details why but thicker heavier gauge or lower resistance spark plug wiring doesn't do what most people would expect it to do. First, there is SO little current (this is different from voltage) passing through the wiring that a heavier gauge wire is useless. It's like trickling water through a garden hose but switching to a fire hose because the fire hose can flow more water if required. The electric current in an ignition wire is a tiny trickle so it doesn't need a big gauge wire to easily flow what is flowing.

Next (and this has to do with Ohm's Law but I'll not get deep into that), that tiny amount of current is affected in such a tiny microscopic way by resistance in the ignition wiring that you could consider it nearly unaffected at all. And that resistance we're all aware of is actually placed into the wiring on purpose. Yes, it actually costs a little more to make ignition wiring with that resistance added to it. Why in the world do we want resistance in our spark plug wiring? To eliminate the spark (ignition) noise from our radios and audio systems. Even our spark plugs purposely have resistance added to them. If we were to swap in wiring and spark plugs without resistance in them, we wouldn't be able to listen to our AM radios due to the static we'd start hearing and the engine computer could even start having problems from the added electrical noise.

Why doesn't reducing the resistance somewhat help increase the spark voltage in the dramatic way some expect or even claim it does? Again, it'd due to the EXTREMELY low amount of current passing through the spark plug wiring. There is such a small amount of voltage dropped while passing through the resistance wiring that for all intents and purposes, you can nearly say no voltage is dropped. It all has to do with the formula E=IR where voltage is E, current is I, and resistance is R. Because I is so low, it's barely there at all, that I times R (the resistance in the wiring) produces very little E (voltage) which is how much the wire would be dropping the voltage.

So bigger diameter wiring doesn't do what many would expect it to, neither does lower resistance wiring. When you've got more than enough voltage to begin with, as the TJ's OE ignition system puts out, it's very hard to improve on it with different wiring or plugs, despite the various ignition wire company marketing department's best efforts to convince us otherwise.

More voltage to the plugs is helpful on older Jeeps like the CJ and YJ because they came with crappy ignition systems from the factory. Installing electronic ignitions will usually help them a lot! It's just that the TJ's ignition system is pretty good as is and there's not much you can do to improve it unless it has a problem somewhere.
yes there is alot of volts but little current (amps in the system). Thats why some people are like 40,000v that could kill you. It's the amps that kill not so much the voltage. Voltage is potential difference amps is the amount of power in the circuit.
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Old 03-11-2008, 07:50 PM   #14
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Unless you dropped in a V8, fuel injected, it is a waste..........

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