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Msd Ignition Set Ups


NataSS Inc

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That bracket looks slick Johann, nice!

I just mounted mine inside the heat shield. I pushed it all the way to one side to leave room the new catch can I'm putting in. The two leads are long enough to reach that spot, no problems.

Needless to say, I'd suggest getting a LONGER coil lead. I'm not real happy about mine sitting where it is. But that was before I put the EST intake in. Oh well, it works fine.

CurrentEngine.JPG

Question, what is that next to the rip pipe and the dist cap?????

and also what fuel thingy is that ????

Thor

P.S. I know I am using very pro terms, but it has been a long day at work andd all

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Question, what is that next to the rip pipe and the dist cap?????

and also what fuel thingy is that ????

Thor

P.S. I know I am using very pro terms, but it has been a long day at work andd all

The thing with the blue horn on it is a blow off valve. Not sure what you mean by "fuel thingy".

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interesting.....................................

For the most part, the ignition systems in most Japanese cars are MORE than adequate and are more than able to supply enough voltage to fire the spark plugs on stock or mildly modified cars (intake and exhaust). About the only time you're going to need to upgrade your ignition system is if you increase cylinder pressure (through turbocharging, supercharging, Nitrous or increased compression), use a fuel that's more difficult to ignite than gasoline or run the engine outside of the RPM band the ignition system was designed for (go above 8000 rpm regularly on our cars).

I have a sneaky suspicion that the "gains" advertised by Jacobs were obtained by replacing worn-out ignition system parts (cap, rotor, plugs & wires) with new parts and/or their "high performance" parts. You'd probably see the same gain from a good tune-up.

Turbo magazine ran a test on a Jacob's Omni-Magnum system in a lightly modded Civic and found a slight (1hp) gain on the low-end but a reduction in power on the top-end. When they hit the engine with a shot of NOS the Jacob's system was good for 1 to 4hp over the stock system. Definitely not a big gain for the money.

A Mustang magazine ran a test on a Jacob's Omni-Pac awhile back. They did some 1/4 mile runs before and after the install. They found that the car actually slowed down with the system installed. Their reasoning? By opening the plug out to the gap setting recommended by Jacobs the spark became too powerful. The shockwave created by the force of the spark jumping the gap actually "pushed" the A/F mixture away from the spark, causing a misfire for that particular power stroke. Closing the plug gap down to the point where misfire was eliminated showed no improvement in the 1/4 mile in comparison to the stock system.

So, for you guys who AREN'T running forced induction, NOS, or Nitro Methane, take the money you're gonna spend on that ignition system and buy a header. You'll see a bigger gain.

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interesting.....................................

QUOTE

For the most part, the ignition systems in most Japanese cars are MORE than adequate and are more than able to supply enough voltage to fire the spark plugs on stock or mildly modified cars (intake and exhaust). About the only time you're going to need to upgrade your ignition system is if you increase cylinder pressure (through turbocharging, supercharging, Nitrous or increased compression), use a fuel that's more difficult to ignite than gasoline or run the engine outside of the RPM band the ignition system was designed for (go above 8000 rpm regularly on our cars).

I have a sneaky suspicion that the "gains" advertised by Jacobs were obtained by replacing worn-out ignition system parts (cap, rotor, plugs & wires) with new parts and/or their "high performance" parts. You'd probably see the same gain from a good tune-up.

Turbo magazine ran a test on a Jacob's Omni-Magnum system in a lightly modded Civic and found a slight (1hp) gain on the low-end but a reduction in power on the top-end. When they hit the engine with a shot of NOS the Jacob's system was good for 1 to 4hp over the stock system. Definitely not a big gain for the money.

A Mustang magazine ran a test on a Jacob's Omni-Pac awhile back. They did some 1/4 mile runs before and after the install. They found that the car actually slowed down with the system installed. Their reasoning? By opening the plug out to the gap setting recommended by Jacobs the spark became too powerful. The shockwave created by the force of the spark jumping the gap actually "pushed" the A/F mixture away from the spark, causing a misfire for that particular power stroke. Closing the plug gap down to the point where misfire was eliminated showed no improvement in the 1/4 mile in comparison to the stock system.

So, for you guys who AREN'T running forced induction, NOS, or Nitro Methane, take the money you're gonna spend on that ignition system and buy a header. You'll see a bigger gain.

QUOTE

+95674356

On my Fiero I completly changed the ignition system, MSD box, Coil, Dist cap and rotor, refurb distributor, and wires, only thing that wasnt MSD was the dist. and the plugs (Bosch Platinum +4) And I got about 5 HP. About 5 HP. And i agree completely that it hurts the top end, Even though my cams were stock, I could feel the loss of power in the top end. And folks, this was on a NA 3.6L V6. Ignition upgrades are overrated, espically on cars like ours who are well engineered in the first place.

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+95674356

On my Fiero I completly changed the ignition system, MSD box, Coil, Dist cap and rotor, refurb distributor, and wires, only thing that wasnt MSD was the dist. and the plugs (Bosch Platinum +4) And I got about 5 HP. About 5 HP. And i agree completely that it hurts the top end, Even though my cams were stock, I could feel the loss of power in the top end. And folks, this was on a NA 3.6L V6. Ignition upgrades are overrated, espically on cars like ours who are well engineered in the first place.

I got a story.

Was working out of a guys mazda tuner shop once, and some "snake oil sales men" came in trying to sell the owner some new fangled ign system. Owner says "I have a rotary in the dyno room with a stock set up on it now, put yours on and if it makes more power I'll buy it!"

Well--- those guys spent all day tweeking and tuning and couldent make any more power than stock!

It was funny watching them scratch thier heads! :lol:

I'm not saying that all after market ign stuff is junk, but:

Moral-- If it sounds too good to be true, --- you know the rest!

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I got a story.

Was working out of a guys mazda tuner shop once, and some "snake oil sales men" came in trying to sell the owner some new fangled ign system. Owner says "I have a rotary in the dyno room with a stock set up on it now, put yours on and if it makes more power I'll buy it!"

Well--- those guys spent all day tweeking and tuning and couldent make any more power than stock!

It was funny watching them scratch thier heads! :lol:

I'm not saying that all after market ign stuff is junk, but:

Moral-- If it sounds too good to be true, --- you know the rest!

Well, I don't think any of the MSD is junk but, for the most part, stock will be just as good if not slightly better because it is set up for the car.

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