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Topic: MSD Ignition...

in Forum: C3 Electrical


MSD Ignition...

Posted: 4/27/05 6:06pm Message 1 of 9
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Former Member
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Frederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
I installed a MSD 6A capacitive discharge ignition box in my '69 427/435 and can honestly say it is worth it! I bought it last week at Carlisle and installed it behind the passenger side of the dash where it's unseen.

The difference in responsiveness is very noticeable and I haven't even re-gapped the spark plugs yet. When I test drove the car, pulling out of my driveway resulted in gravel flying everywhere even by barely touching the throttle...not that the car doesn't do that anyway if I'm not careful. It will be nice if it does something to improve the single digit gas mileage, but I'm not holding out false hopes.

If anyone is thinking about installing one of these, I can definitely say go for it.




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MSD Ignition...

Posted: 4/27/05 10:32pm Message 2 of 9
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Hot Springs, AR - USA
Joined: 4/24/2004
Posts: 3236
Vette(s): 69 Conv #'s match 427, TKO-600/.64, 3.36HD-Posi, HT, T/T, PS, PB, PW, SP, Leather, Comp XE264HR & Roller Rockers & Lifters, Air-Gap RPM intake, Holley St Av 770 VS, MSD 6AL+Dist+Blaster SS, K&N, Jet-Hot Hooker Side-Pipes, Steeroids, Al Rad, Spal Fans
i concur on all these points..  the msd 6A/6AL is worth EVERY penny


MSD Ignition...

Posted: 4/27/05 10:41pm Message 3 of 9
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Batavia, IL - USA
Joined: 3/27/2003
Posts: 622
Vette(s): 496 big block, Dragvette 6 link, 12 bolt IRS conversion, Going for fastest Vette IRS E/T
Soooo... the Voodoo Cam or the MSD 6AL....Hmmmm choices, choices.


MSD Ignition...

Posted: 4/27/05 10:49pm Message 4 of 9
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Hot Springs, AR - USA
Joined: 4/24/2004
Posts: 3236
Vette(s): 69 Conv #'s match 427, TKO-600/.64, 3.36HD-Posi, HT, T/T, PS, PB, PW, SP, Leather, Comp XE264HR & Roller Rockers & Lifters, Air-Gap RPM intake, Holley St Av 770 VS, MSD 6AL+Dist+Blaster SS, K&N, Jet-Hot Hooker Side-Pipes, Steeroids, Al Rad, Spal Fans
i say do both !!


MSD Ignition...

Posted: 4/28/05 2:29pm Message 5 of 9
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Virginia City, NV - USA
Joined: 1/19/2005
Posts: 314
Vette(s): 1979 Coupe, white in color
It's ONLY money Tumarr


MSD Ignition...

Posted: 4/28/05 2:58pm Message 6 of 9
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Former Member
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Frederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
The MSD instructions don't give specific recommendations on re-gapping the spark plugs, just general recommendations. Does anyone here who has experience with the MSD ignitions have any advice for me on what gap to set the plugs at...427 L71 engine, bored .030 over with compression ratio set at 10.6:1 and an L88 cam.

I'd appreciate any advice. Thanks.


MSD Ignition...

Posted: 4/28/05 2:59pm Message 7 of 9
Former Member
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Batavia, IL - USA
Joined: 3/27/2003
Posts: 622
Vette(s): 496 big block, Dragvette 6 link, 12 bolt IRS conversion, Going for fastest Vette IRS E/T
Well my Tax refund was about $550 this year... Might just need to do both.


MSD Ignition...

Posted: 4/28/05 4:27pm Message 8 of 9
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KEYPORT, NJ - USA
Joined: 7/6/2002
Posts: 493
Vette(s): 1973 Stingray Coupe and C5 and C6 Coupes.

[QUOTE=cthulhu]i concur on all these points..  the msd 6A/6AL is worth EVERY penny[/QUOTE]

Ditto  




MSD Ignition...

Posted: 4/28/05 5:35pm Message 9 of 9
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Fort Wayne, IN - USA
Joined: 1/17/2005
Posts: 179
Vette(s): '75 Stingray Coupe - 350 Bored, Edelbrock Alum. Heads, Performer Intake/ Carb., Harland Sharp Roller Rockers, MSD Ign., XE Comp. Cam, Pete Jackson Gear Drive, Hooker Headers, Side Pipes, TH400, 3000 RPM Stall and 3.55 Rear Gears

I am planning (hoping) on adding the MSD 6AL.....soon. Chomping at the bit here, I will get my car back on the road Saturday night. The last upgrades were quite extensive. Rebuilt rear end,posi, new yokes,6 u joints,3.55 gears, spindle, bearings and a hard shift kit I just got off the phone with a guy who drags vettes and did a lot of work for me. All he keeps saying is you will be Quite Impressed! We talked about the MSD 6AL. He said I had my timing pretty far advanced   and the ignition box will help. SOLD!

I wasn't quite sure about what to expect from the ignition box until I read this post. Possibly better gas mileage to boot is another plus. Trying to get all the power from the front to the wheels. Who knows maybe I will EAT SOME RICE this weekend!

Gene38470.7338194444


in Forum: C3 Electrical


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