MSD Install Notes for SC - Page 2

VaSteve · 11-25-2007, 09:24 AM

IBTL

I put an MSD on my car when the permatune unit failed. @ $300 it was a much better deal than the Bosch unit. I don't know any performance gains, I didn't drive it hard at the time. I have noticed no failures or problems in 3.5 years.

I would recommend that you run blades to the 6 pin connector so you don't have to cut anything.

Make sure you have a good boot on the coil and the lead to he distributor is tight. The spark is very powerful and can blow out coil if not seated. Ask me how I know.

BrokeMyCar · 11-25-2007, 09:47 AM

In response to T_Durden... I had the same concerns, and a helpful professor set me right-

I ran the wire along the driver's side of the engine, then along the back of the engine to the passenger side. There's no need to drill a hole - the engine is not a tightly sealed compartment. You can move the rubber seal at by hand and slide the wire past the curled lip of the engine tin. If you have a rubber grommet or something it's not a bad idea to put it there too, lest rubbing damage the wire.

Good luck,

Babak

PS discussions like this thread will be great once we get a wiki setup

VaSteve · 11-25-2007, 02:38 PM

You wire the "hot" to one of the fuse posts under the plastic cover. Nothing goes to the starter.

shbop · 11-25-2007, 03:35 PM

Todd,

For what it's worth: Loren frequently finds other's electrical work unworthy. He's in the business, but has failed to understand rule 1 of basic marketing.

Rule 1: Being nice attracts people-- being a jerk, doesn't.

Steve@Rennsport · 11-25-2007, 03:53 PM

Quote:

Originally Posted by shbop

Todd,

For what it's worth: Loren frequently finds other's electrical work unworthy. He's in the business, but has failed to understand rule 1 of basic marketing.

Rule 1: Being nice attracts people-- being a jerk, doesn't.

Rule 2: The mind is like a parachute; it works a LOT better if it is open.

holtjv · 11-25-2007, 05:22 PM

I just installed one plus the blaster coil and opened my gaps to .058". I can say that I notice a very, very subtle difference in grunt but not real appreciable. No dyno. This doesn't concern me because I bought the msd and coil to replace the oem units.

Maybe I'll monkey around with the gaps some more but it's my assumption that the wider the gap the longer the flame, etc. There's no misfire but I can't really imagine widening the gaps further (can you?).

here's the thread I referenced wrt gap: msd ignition

Regarding the recurring argument on msd's, I say get one for yourself and if you perceive it to work better for you, then fine.

Perception is truer than truth--only those with self image problems are intolerant of others' beliefs.

fred cook · fred cook's Garage

In my '80 911SC coupe:

My car is equipped with an internal voltage regulator so the old external unit was already out of the way. The MSD has been in my car almost 3 years now and has never missed a beat. I'll report back in 17 more years when it has 20 yrs on the clock. I am confidant that it will still be in the car an working if/when I decide to sell it. Bosch is good, but not the only choice, especially at the price! Besides, if my unit "breaks" I can buy a new one almost anywhere. Try that with your Bosch CDI unit!

village idiot · village idiot's Garage

Quote:

Originally Posted by Steve@Rennsport

Rule 2: The mind is like a parachute; it works a LOT better if it is open.

I like that one

Greek55 · 11-26-2007, 10:31 AM

I have had both in my car, MSD-6 and stock Bosch. I didnt notice any difference in performance. The MSD-6 came off of a 66 Corvette, big block, where is made a huge difference. With the MSD I was able to have larger plug gaps, but I didnt feel that helped. My idle is smooth with either one. THe advantage of the MSD was I could raise the red line limit, but to do that I had to have the distributor reworked.

damian911 · 02-03-2008, 11:04 AM

just wanted to chim in and say i just installed the msd6al and high vibration coil also and was surprised to learn it cleaned up the majority of morning hesitations and length of warm up times, just ran better on the low end, guess the multiple sparks help out before 3000 rpm in my cars case...maybe my cars running too rich also...but i would recommend it....Oh my reasons to change it was merily for security, i did not know how old my bosch cdi was and didnt want to standed on the road.