Msd 7al-2

Plyguy63 · 10-24-2018, 07:28 AM

I have a MSD 7AL-2 box. Not the 7AL-2 Plus. Are there any upgrades available for this older 7AL or is it necessary to get a different box. It seems the Plus has a two step and mine only the one chip rev limiter. We are talking drag race only.

Hacksaw · 10-24-2018, 08:11 AM

Just add a separate 2 step module, dial or chip type.

jmcarter · 10-24-2018, 08:39 AM

https://www.summitracing.com/parts/msd-8739/overview/

cyclonebfx · 10-24-2018, 10:42 AM

Use either the above 2 step module or I have used the 3 step module with success.

terry1 · 10-24-2018, 11:36 AM

I would recommend a two step with
switches. The "pills" are just resistors and they
WILL corrode; changing value(s).
Terry K

FireSale · 10-24-2018, 12:47 PM

My old AL6 box had dials for the 2 step and they fell off. I looked and dial or DIP switch 2 step controllers don't seem to be available. Pills are reasonably reliable considering that they can be replaced every few seasons if the humidity gets high. I'm in the Pacific Northwest and have pills in my 7 Plus and RPM switch for the shift light.

10-24-2018, 07:28 AM	#1
Plyguy63 Junior Member Join Date: Jul 2018 Posts: 29 Likes: 0 Liked 8 Times in 4 Posts	Msd 7al-2 I have a MSD 7AL-2 box. Not the 7AL-2 Plus. Are there any upgrades available for this older 7AL or is it necessary to get a different box. It seems the Plus has a two step and mine only the one chip rev limiter. We are talking drag race only.

10-24-2018, 08:11 AM	#2
Hacksaw Senior Member Join Date: Sep 2016 Posts: 851 Likes: 158 Liked 281 Times in 156 Posts	Re: Msd 7al-2 Just add a separate 2 step module, dial or chip type.

10-24-2018, 08:39 AM	#3
jmcarter VIP Member Join Date: Dec 2008 Location: Richmond Hill GA (and Port Ludlow WA) Posts: 4,196 Likes: 2,132 Liked 2,933 Times in 900 Posts	Re: Msd 7al-2 https://www.summitracing.com/parts/msd-8739/overview/ __________________ Jim Carter 2340 Super Stock 2340 SST/2340 Stock Set another place at the table

10-24-2018, 10:42 AM	#4
cyclonebfx Junior Member Join Date: Nov 2013 Posts: 37 Likes: 7 Liked 1 Time in 1 Post	Re: Msd 7al-2 Use either the above 2 step module or I have used the 3 step module with success. __________________ 5705 F/S 5706 D/SA

10-24-2018, 11:36 AM	#5
terry1 Member Join Date: Sep 2006 Location: Moncton, N.B. Posts: 276 Likes: 24 Liked 24 Times in 13 Posts	Re: Msd 7al-2 I would recommend a two step with switches. The "pills" are just resistors and they WILL corrode; changing value(s). Terry K

10-24-2018, 12:47 PM	#6
FireSale VIP Member Join Date: Feb 2014 Location: Lakewood Washington Posts: 1,407 Likes: 29 Liked 237 Times in 127 Posts	Re: Msd 7al-2 My old AL6 box had dials for the 2 step and they fell off. I looked and dial or DIP switch 2 step controllers don't seem to be available. Pills are reasonably reliable considering that they can be replaced every few seasons if the humidity gets high. I'm in the Pacific Northwest and have pills in my 7 Plus and RPM switch for the shift light. __________________ Dale Shearon 68 Mustang 6394