MSD Ignition

[1BADVAN]

i was wondering what benefit there is in switching to MSD i have heard that some people love it and others don't is there any power gains or better combustion? Is it worth the MONEY$

[contraption22]

I have a Crane box Hi6 (race version) installed on my Horizon, which functionally, is the same as a MSD 6AL box. It helped me open up my plug gaps back up to stock and still run very high boost, where without it, I would have spark blowout at more than .025" plug gap. I'm still using an OE coil.

Just this past weekend, I installed a Crane Hi6S (street version) on my daily driver TBI Acclaim. No noticable power increase persay, but the car does start easier, idle and accelerate smoother, which is all I hoped for.

[shelbyplaya]

i got a MSD sport compact box in my daytona. It really seems to like it. no spuddering, missfires or anything at high boost with a bigger plug gap. and fuel economy is a bit better to.

[BadAssPerformance]

Think of an ignition box as an amp so to speak, so like Mike said, you can run a bigger gap for more power. The MSD also hase multiple spark under 3k rpm for improved combustion.

Not one of the first mods I would suggest but later down the road for sure.

[1BADVAN]

ok thanks for your opinions so i am running a 2.5 with ported 287? G head ported exhaust manifold, 3 core IC, and an intake with a bigger plenum and a stock T2 style turbo with .63 A/R exh. and a bigger cold side too.
Would it be a good idea then?

[contraption22]

ok thanks for your opinions so i am running a 2.5 with ported 287? G head ported exhaust manifold, 3 core IC, and an intake with a bigger plenum and a stock T2 style turbo with .63 A/R exh. and a bigger cold side too.
Would it be a good idea then?

It might be something to consider once you really start cranking up the boost if you get any spark blowout (misfires).

[1BADVAN]

i did notice that before when i was running 20+ psi i am guessing that was caused by the blowout

[contraption22]

i did notice that before when i was running 20+ psi i am guessing that was caused by the blowout

Any easy way to check is to close your spark plug gap a little to see if it goes away.

I had to go from OE gap .035" down to .025" to get rid of the blowout.

Then once I put the Crane box on, I could go back to .035"

[bakes]

i got my gap back up to .040" with my MSD @20# but this all depends what cam i was running

[1BADVAN]

thanks guys, did you upgrade wires too? Just using electrical equations it makes sense that using the low resistance wires could double or more the current flowing to the plugs which i would guess would resist blowout. Maybe I am way off?

[contraption22]

Its always a good idea to have good low-resistance wires.

[rbryant]

If to go with the ignition box stock wires probably won't hold up very long. They have high resistance which creates heat and cooks them.

MSD went to the copper wound wires primarily to reduce the amount of heat.

-Rich

[rbryant]

If to go with the ignition box stock wires probably won't hold up very long. They have high resistance which creates heat and cooks them.

MSD went to the copper wound wires primarily to reduce the amount of heat.

-Rich

[Murphy]

on my 3.0 I got the MSD SCI box, blaster 2 coil and made a custom set of MSD wires whole setup cost me about $150. Engine seems to run smoother, duno about power. I haven't tried raising the plug gap because the 3.0 gap is pretty large as it is (.040" i think)