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 polak
A.k.a.: Adam Pawlowski
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 posted on August 16th, 2009 at 11:45 PM |
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MSD 6AL problems
hey dave, me and mike are stumped with my msd 6al..... iv been running it for about 5 months now but never had the limit chip in there as i was
running in the motor....
tonight we tried some of the rev chips to see if it limited it and thats when we struck with an issue, im still waiting for my tacho to come from the
us of a so i dont know the exact revs its pulling but with a 3000rpm chip it feels like its limiting it at about 5200 or so.... either way its revving
waaayyyy past the 3000rpm its supposed to limit at....
tried a bunch of limit chips and checked that they all work with a multimeter.... also the msd is putting out about 7.54v out of the chip plug so it
working too....
im totally stumped and we have no idea why its doing what its doing.... have you had this problem or ever heard of it??? any info would be greatly
appreciated.....
thanks adam
VW - helping put oil back into the ground for over 60 years |
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HS618
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| posted on August 17th, 2009 at 12:03 AM |
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I know I'm not Dave, but have you cut the appropriate wires on the side of the 6al behind the round black plastic cover to let the MSD know it's
working for a 4 cylinder engine? - H
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Marko
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| posted on August 17th, 2009 at 04:26 AM |
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http://www.msdignition.com/uploadedFiles/MSDIgnitioncom/Products/Ignitions/64...
Page 4
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on August 17th, 2009 at 05:22 AM |
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Henry and Marko have your answers Adam.
Change the name of your topic so other people can use the infrmation
in future when they search for MSD problems.
| Quote: | Originally
posted by westi
That's mad Alan.
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polak
A.k.a.: Adam Pawlowski
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| posted on August 17th, 2009 at 10:18 AM |
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hahaha thanks Henry! i forgot that you trawl these pages aswel
how is the new car going? it was really impressive on its first time out, and ridiculously consistent for a brand new car... great work. any more test
and tunes before warwick?
| Quote: | Originally
posted by HS618
I know I'm not Dave, but have you cut the appropriate wires on the side of the 6al behind the round black plastic cover to let the MSD know it's
working for a 4 cylinder engine? - H
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polak
A.k.a.: Adam Pawlowski
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| posted on August 17th, 2009 at 10:20 AM |
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thanks marco, that helps heaps, i never got an instruction manual with my 6al, i bought it used off the net hopefully this will work, going straight to the workshop to try it right now!!
VW - helping put oil back into the ground for over 60 years
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polak
A.k.a.: Adam Pawlowski
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| posted on August 17th, 2009 at 11:18 AM |
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thanks guys, it solved the problem and now works brilliantly..... cant believe it was that simple..... how is it that the car itself ran fine the
whole time and the only thing affected was the limiter?
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HS618
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| posted on August 17th, 2009 at 09:30 PM |
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Adam, the reason the MSD works without a chip is that it fires the coil every time it gets a signal from its trigger.(at this point it doesn't count
the number of pulses)
When you install a chip and without cutting wires, it assumes it is a V8 therefore it counts 4 pulses per revolution. As a 4 cylinder has only 2
pulses per RPM your RPM was double
Also without a chip, there is no RPM limit
By cutting the wires, you are letting the MSD know how many cylinders are firing for each crankshaft revolution
As for the yellow car, thanks for the favourable comments. Took a while to figure out what I wanted as a combination and it isn't quite there yet.
One more T/T is available at WSID on the 5th Sept. before Warwick to which I have already entered. Just need "Bum in Seat" time
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