are these worth it
i dont know much about them at all
i have recently built my 202 in my street hr
blue crank and rods , big cam , 465 holley blue dizzy and a bit of head work
i find that it starts to foul up at the lights after a little while runs good when going
was thinking a msd would help that
i havent really tuned it too much just yet as im waiting for stall to go in , but ive got it the best i can so far
can someone tell me if these are any good and if they will be any good for me
thanks
daniel d
msd ignition
Started by
_double_d_
, Mar 07 2012 08:14 AM
17 replies to this topic
#2
Posted 07 March 2012 - 09:51 AM
They are definitely good. Whether good value for money is another question and depends on your budget and what you expect from it, there are a lot of options with ignition systems these days and MSD units have retained a reasonably high price.
Coupled with a suitable high output coil it is possible to fire/clear fouled and flooded plugs that basic ignition systems wouldn't, but that doesn't stop it from happening in the first place, you really need to address the source of that problem rather than looking for a bandaid solution.
Coupled with a suitable high output coil it is possible to fire/clear fouled and flooded plugs that basic ignition systems wouldn't, but that doesn't stop it from happening in the first place, you really need to address the source of that problem rather than looking for a bandaid solution.
#3
orangeLJ
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Posted 07 March 2012 - 11:08 AM
ICE or MSD would be my picks.
#4
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Posted 07 March 2012 - 11:27 AM
I run cold plugs in my supercharged 350 and fouled plugs around town was a continual problem. One or more plugs would stop firing and even a run down the freeway may not bring them back to life. An MSD 6AL solved this problem, but l had an MSD die on me after about six years. Once the magic box is dead, its really really dead, and the MSD on line tech help is a complete waste of time. So yes, it will fix your problem, but is it the best solution, l don't know.
I did replace my first MSD with another one and they are not too hard to by-pass if your stranded on the road side.
I did replace my first MSD with another one and they are not too hard to by-pass if your stranded on the road side.
#5
_Bomber Watson_
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Posted 07 March 2012 - 06:07 PM
Cheap from the states, and will fix your issue.
The HEI conversoin oldjohnno has a thread about would also work.
Cheers.
The HEI conversoin oldjohnno has a thread about would also work.
Cheers.
#6
Stinga
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Posted 07 March 2012 - 07:08 PM
ive got one of those dizzies from the oldjohnno thread in my uc, though my engine is only standard, should be good for a mild motor and at a tad under $100 landed and about an hours work(see my pics in the thread) its a pretty good budget option
#7
_oldjohnno_
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Posted 07 March 2012 - 07:14 PM
you really need to address the source of that problem rather than looking for a bandaid solution.
Quoted for truthiness.
If it's tuned properly it'll run fine with points 'n a coil. And you could probably argue that points are a good baseline to start from simply because they won't cover up deficiencies elsewhere. Once you're happy with the carburetion you can change over to get the freedom of maintenance and ease of tuning that you get with electronic systems.
#8
warrenm
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Posted 08 March 2012 - 07:23 AM
I agree.Quoted for truthiness.
If it's tuned properly it'll run fine with points 'n a coil. And you could probably argue that points are a good baseline to start from simply because they won't cover up deficiencies elsewhere. Once you're happy with the carburetion you can change over to get the freedom of maintenance and ease of tuning that you get with electronic systems.
#9
_Sandman_
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Posted 09 March 2012 - 09:09 PM
I've had a good run out of Crane Hi6 units. They are similar output to MSD 6AL. I like them for the reason that you don't have to run chips for the rev limiter like the MSD.
Sorry to disagree with you johno, but I reckon that the MSD's etc, (Multiple spark HEI systems) are much better than the factory HEI's. I always thought the normal ignitions were doing a good job, until I started running Crane and MSD ignitions. Wouldn't ever go back. Especially with hot engines. You can run factory HEI distributor with MSD. Works pretty good and troublefree. You have to take the amplifier out of the dissy and just run the 2 wires from the mag pickup to the MSD.
With double D's problem, have you checked carb, float levels, and power valve. Either of these will cause fouled plugs. Also are you running cold plugs. I wouldn't go any colder than a 6 in an NGK. Not sure what that equates to in any other brand. I've tried 7's on the street and they will foul.
Sorry to disagree with you johno, but I reckon that the MSD's etc, (Multiple spark HEI systems) are much better than the factory HEI's. I always thought the normal ignitions were doing a good job, until I started running Crane and MSD ignitions. Wouldn't ever go back. Especially with hot engines. You can run factory HEI distributor with MSD. Works pretty good and troublefree. You have to take the amplifier out of the dissy and just run the 2 wires from the mag pickup to the MSD.
With double D's problem, have you checked carb, float levels, and power valve. Either of these will cause fouled plugs. Also are you running cold plugs. I wouldn't go any colder than a 6 in an NGK. Not sure what that equates to in any other brand. I've tried 7's on the street and they will foul.
#10
_Bomber Watson_
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Posted 09 March 2012 - 09:18 PM
Sandman, basic MSD 6AL is now pod not pill.
Cheers.
Cheers.
#11
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Posted 09 March 2012 - 10:17 PM
Sandman, basic MSD 6AL is now pod not pill.
Sorry DJ, Im a little slow, what is POD & PILL?
#12
_Bomber Watson_
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Posted 09 March 2012 - 10:28 PM
Pill is when you insert various pills (that you have to buy) into a slot, basically little diodes or something, that sets the rev limit. Pod is the thing you put a small screwdriver into and turn it to set the rev limit.
Cheers.
Cheers.
#13
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Posted 09 March 2012 - 10:45 PM
ah, good, thought it may have been Piece Of Dropping or something like that, thought I may have to sell it and buy a high quality ProComp one. ;-)
#14
_oldjohnno_
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Posted 10 March 2012 - 07:09 AM
Sorry to disagree with you johno, but I reckon that the MSD's etc, (Multiple spark HEI systems) are much better than the factory HEI's. I always thought the normal ignitions were doing a good job, until I started running Crane and MSD ignitions. Wouldn't ever go back.
Fair enough, and I do actually agree some of the aftermarket stuff has its place on higher end engines. I've found the multi-spark stuff to give a noticeably smoother idle and a smoother cruise on the transfer slots too. But with mildish (say to about 1.25hp/cube) engines I've never found even half a tenth of performance compared to a cheap HEI. Hell, I've had points run as quick as an MSD. The only performance gains I've ever found have been in the advance curve.
I think the thing that bugs me is when young guys on a limited budget get sucked into buying some shiny super-duper ignition for their street car, and maybe pick up a few hundredths if anything. You could put the same money into a manifold or cam or headwork and realistically expect to find a few tenths. Of course high boost and/or rpms is a different story...
#15
_double_d_
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Posted 10 March 2012 - 08:04 AM
i am ready to start tuning it properly
eg powervalve , jets , plugs and the sort
but i am waiting to get my stall in first , i figure it is useless to tune it now untill i get the stall in
my uncle did tell me that you can get multiple spark from a keetering points system anyway he also says the msd probably wont help me much
probably not for 20 degrees though
im just asking if they are worth it , by the sounds of it they are not
daniel d
eg powervalve , jets , plugs and the sort
but i am waiting to get my stall in first , i figure it is useless to tune it now untill i get the stall in
my uncle did tell me that you can get multiple spark from a keetering points system anyway he also says the msd probably wont help me much
probably not for 20 degrees though
im just asking if they are worth it , by the sounds of it they are not
daniel d
#16
_fryzem_
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Posted 10 March 2012 - 09:13 PM
i fit heaps of msd 6als and 7als and crane hi-6 units too. i can tell you if you have an aggresive cam with reasonably large overlap, you will find it hard to iron the tune right out, the msd multiple spark will definatley help with burning all fuel that reaches the combustion chamber, dont hesitate mate, bolt one in i guarantee you wont look back. it will make the tuning so much easier.
#17
hanra
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Posted 10 March 2012 - 09:38 PM
Pod is the thing you put a small screwdriver into and turn it to set the rev limit.
Cheers.
You may be referring to a pot short for potentiometer or variable resistor.
#18
_Bomber Watson_
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Posted 10 March 2012 - 09:45 PM
thats probably the correct term, i dunno, im a dumb spraypainter/car guy.
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