MSD Digital 7

Ed Carpenter · 09-12-2014, 12:48 AM

Is anyone using the 7531 MSD ignition? I'm reading up on it and it says you need a spark plug wire sync kit. What is it for? Any feedback on the box would be appreciated. Thanks

terry1 · 09-12-2014, 08:12 AM

I use the MSD 7530T digital.I like the idea of no RPM pills and three
step limiters.
I do have an issue of some time the launch RPM limiter is not as programed.
I set it for 6600 and quite often I will come out between 5700 to 5900!?.
Terry K

Keith 944 · 09-12-2014, 08:55 AM

as I understand you only need that if you plan on retarding individual cylinders. this is usually done by pro-stock teams etc. you won't need it to use the boxes other features.
also, slew rate (traction control) is still illegal to use in most classes.

buzzinhalfdozen · 09-12-2014, 09:22 AM

Yes the sync is used for individual cylinder timing, have a few nitrous guys that use that feature. Pretty handy for that purpose, but doubt of much use on most engines.

Bill Edgeworth · 09-12-2014, 03:51 PM

I don't think the 7531 is legal for s/ss the 7530T is

Just put one in my car, works great but pay attention to programming especially stuff like the safety shut down timer/rpm.

Dave Muller · 09-13-2014, 12:00 AM

Quote:

Originally Posted by Bill Edgeworth

I don't think the 7531 is legal for s/ss the 7530T is

Just put one in my car, works great but pay attention to programming especially stuff like the safety shut down timer/rpm.

Bill, I have one question about these MSD controllers, do they supply a cable to connect a laptop to it? I see much in the manual about how to program the features, but very little about how to actually connect the computer and download the program.

09-12-2014, 12:48 AM	#1
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,709 Likes: 186 Liked 520 Times in 132 Posts	MSD Digital 7 Is anyone using the 7531 MSD ignition? I'm reading up on it and it says you need a spark plug wire sync kit. What is it for? Any feedback on the box would be appreciated. Thanks __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development

09-12-2014, 08:12 AM	#2
terry1 Member Join Date: Sep 2006 Location: Moncton, N.B. Posts: 276 Likes: 24 Liked 24 Times in 13 Posts	Re: MSD Digital 7 I use the MSD 7530T digital.I like the idea of no RPM pills and three step limiters. I do have an issue of some time the launch RPM limiter is not as programed. I set it for 6600 and quite often I will come out between 5700 to 5900!?. Terry K

09-12-2014, 08:55 AM	#3
Keith 944 VIP Member Join Date: Feb 2006 Location: Dela-where? Posts: 2,193 Likes: 1,162 Liked 1,877 Times in 577 Posts	Re: MSD Digital 7 as I understand you only need that if you plan on retarding individual cylinders. this is usually done by pro-stock teams etc. you won't need it to use the boxes other features. also, slew rate (traction control) is still illegal to use in most classes. __________________ KEITH MAYERS 2-1/2 X somebody Still many X nobody

09-12-2014, 09:22 AM	#4
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: MSD Digital 7 Yes the sync is used for individual cylinder timing, have a few nitrous guys that use that feature. Pretty handy for that purpose, but doubt of much use on most engines. __________________ Joe Buchanan SS/BX 3117

09-12-2014, 03:51 PM	#5
Bill Edgeworth Member Join Date: Oct 2006 Location: Tacoma, WA Posts: 258 Likes: 0 Liked 0 Times in 0 Posts	Re: MSD Digital 7 I don't think the 7531 is legal for s/ss the 7530T is Just put one in my car, works great but pay attention to programming especially stuff like the safety shut down timer/rpm. __________________ Bill Edgeworth 6471 STK

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