experience with msd 6a

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Oct 9, 2002 | 09:41 PM

GammaDriver

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Joined: Dec 2001

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From: Southeast FLA

experience with msd 6a

Nov 25, 2002 | 02:52 AM

letti

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Joined: Sep 2002

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experience with msd 6a

first step (stock equipment):
messured sparc current: 9-12 KV
second step (replaced tfi-coil with msd tfi-coil direct replacement):
messured sparc current: 12-15 KV
third step (installed msd 6a under the k&n filter in the mould
where the original air filter was, installation was not really a problem using the ford cable adapter)
messured sparc current: 21 KV

conditions where allways the same (warmed up engine), same
sparc splug cable ...)
only my feeling, not messured:
engine seems to run smoother, a little bit quicker throttle response, slightly pinging when accelerating full throttle has gone.
i dont know if the modifications are worth > 600 U$ but the feeling is good. i would do it again.
greetings

Gert Lettner
Ford Bronco Eddi Bauer 5.0, AC, 1988

Nov 25, 2002 | 09:38 PM

94blueford

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Joined: Nov 2002

Posts: 43

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From: Bristol, CT

experience with msd 6a

Interesting results, I plan to do the same all-around MSD ignition upgrade to my '94 F-250HD with the 5.8L 351W. I want to go a few additional steps though, so I have a few questions for ya. Are you OR did you replace the OEM:

spark plugs with a new set of motorcraft plugs?
spark plug wires with motorsport 8mm+ wires?
distributor cap and rotor with MSD replacment parts?

Nov 26, 2002 | 02:03 AM

letti

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Joined: Sep 2002

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experience with msd 6a

- yes i replaced my sparc plugs, but with (nearly original) bosch plugs (because motorcraft or ngk are not easy to get ...).
the main reason was that i didnt know when the previous owner has changed the plugs last time. When changing the plugs you can give them a little wider gap. i saw an older posting thinking about 0.060 ...
- yes, i replaced the wires with the wires you mentioned. i think any type of > 8 mm wire will work except solid core wires.
- unfortunately no. i would like to have the cap and rotor also from msd but there is no money left

. maybe i will do this in the future because my truck is arround 108.000 km with the same original rotor.
greetings
Gert Lettner

>Interesting results, I plan to do the same all-around MSD
>ignition upgrade to my '94 F-250HD with the 5.8L 351W. I
>want to go a few additional steps though, so I have a few
>questions for ya. Are you OR did you replace the OEM:
>
>spark plugs with a new set of motorcraft plugs?

>spark plug wires with motorsport 8mm+ wires?
>distributor cap and rotor with MSD replacment parts?

Nov 26, 2002 | 11:35 AM

robert56

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Joined: Aug 2002

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experience with msd 6a

Interesting data regarding the spark current. Thanks. That does seem like an odd place to mount the 6a box though. Don't you have a concern about the bulk of the unit choking the air supply to the filter?

Rob

Nov 27, 2002 | 02:50 AM

letti

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Joined: Sep 2002

Posts: 6

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experience with msd 6a

no, i believe there is enough room between the K&N and the msd box, over 1 inch. i mounted the msd-box directly to the mould surface, only with a thin piece of rubber between the box and the surface to equalice the grooves.
the more i drive the more i like the msd. next weekend i will play with the spark plug gaps ...
greetings
Gert Lettner

>Interesting data regarding the spark current. Thanks. That
>does seem like an odd place to mount the 6a box though.
>Don't you have a concern about the bulk of the unit choking
>the air supply to the filter?
>
>Rob

Nov 29, 2002 | 08:53 PM

EPNCSU2006

Lead Driver

Joined: Nov 2002

Posts: 9,557

Likes: 44

From: Concord, NC

experience with msd 6a

The msd cap and rotor are actually cheaper than the NAPA echlin parts I bought for my most recent tune up. Best I recall the msd cap was ~$15 and the rotor was ~$5, both from Summit racing, but if that is all you are going to order, it will cost about the same as buying both from NAPA, and from my experience, the NAPA echlin parts perform about the same as the msd, and maybe last longer, I'm not sure.