MSD Unit
Thread Starter
Racer
Joined: Oct 2007
Posts: 284
Likes: 6
From: Palm PA
MSD Unit
Does anyone have the MSD adjustable retard unit on their car? I was wondering if they work good? It seems like an ideal set up. Retard the timing for starting and driving around town and advance the timing for more power when needed.
68 Vetteman
68 Vetteman
Thread Starter
Racer
Joined: Oct 2007
Posts: 284
Likes: 6
From: Palm PA
My car runs good with the timing advanced but street driving is a little rough. I can manually retarding the timing for a little better idle but saw the MSD unit that I can control from the dash board. Is this a good idea?
68 Vetteman
68 Vetteman
Safety Car
Joined: Jan 2009
Posts: 4,000
Likes: 299
From: New York
If your set up with max timing all the time .. then yep that will work and what it is meant for. I am guessing you are cranking very hard after she warms up. I think it requires a MSD box like the 6AL ..
As to why you would want to change timing for driving i have no clue , but i do know some blown and other set ups run at 36 degrees 100% of the time . It is usually for a pure race motor though or a super powerful street / strip set up.
As to why you would want to change timing for driving i have no clue , but i do know some blown and other set ups run at 36 degrees 100% of the time . It is usually for a pure race motor though or a super powerful street / strip set up.
Thread Starter
Racer
Joined: Oct 2007
Posts: 284
Likes: 6
From: Palm PA
Glad you said that. I got a stock HEI and compared it to my Corvette HEI. The weights and cam on top of the dist shaft were different. I did a quick measurement and had less centrifugal advance with the Corvette HEI verses a stock HEI. I changed the cam and weights and will try it out later. There is snow in our forecast for now.
68vetteman
68vetteman
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
FYI, Ford modules of that era automatically retard 10° internally for ease of starting. Must have been where they got the "better idea" slogan.
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