FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
MSD Digital 6+ vs Digital 6AL ??
What's the basic difference between these two boxes? I was planning on using the 6AL, but have a chance to pickup the 6+ new, cheap from a friend.
__________________
67 Firebird Convert 455 +.060 TH400 74cc KRE d-ports piston dished 16cc H-beam rods Comp Cam 305-AH-8 cam 108* LSA 253/260 @.050 duration .577/.594 lift w/1.65 rockers Ford 9" 3.50 Detroit Locker M/T Sportsman Radials 31x18x15 on Convo Pro 15x15s |
#2
|
||||
|
||||
If i were you I would look for the 6al2, you get 2 rev limiters, a launch and a maximum, not much difference in money. I do not like the digital al boxes from some info I read on line, and a friend of mine being stranded on the hwy. They seem to stop working for no good reason. My 6 al2 box is 10 years strong no issues.
|
#3
|
||||
|
||||
I had the 6AL-2 in my Falcon. It died in less than a year, and they sent me another. The car was down for awhile, and the second one lasted maybe 2 years, before it died and left me stranded on the way to a race.
Pulled a 20+ year old analog 6AL out of my parts bin, installed THAT, and never had another problem. IMHO, their quality dropped a LOT after AutoTronics sold them.
__________________
'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'. '67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust |
#4
|
||||
|
||||
Quote:
I have 2 of the Digital Boxes: MSD Ignition 6520 - MSD Digital-6 Plus CD Ignitions Mine are about 15-20 years old, Never installed. Busy with other things in life. Any one running one of the OLDER 6520 boxes? I also have a MSD 7 AL box (like new) that was on Marty Palbykin's 6 second prior to him going to a MAGNETO set-up. Any Interest. PM me as not going to post them as For Sale. Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#5
|
||||
|
||||
The asphalt Late Model car I picked up (backed int the wall) has TWO MSD systems they could switch during a race if one crapped out and they are analog.
I have known drag racers even with the old analogs have them crap out at the track and many carried spares.
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#6
|
||||
|
||||
Agree totally Skip with that deal. Everyone (including the F-Guys) ran two systems BUT with the "potted" units, very rarely (unless
the car was crashed), was the 2nd unit ever needed. Autotronics built some nice stuff for the F-Guys but we paid more for it. The Teams always played it safe, even with the better design and the potted parts. In the old days, only a few had complete ignition control. Today everyone is using the add on systems to get consistent performance pass after pass. Tom V. There are a few systems out there with F-1 capabilities. MoteC being one of them. Not Cheap. https://www.motec.com.au/s-em-hundre...s-howtochoose/ Nothing WRONG with a good "Old School Digital System"
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. Last edited by Tom Vaught; 09-29-2021 at 07:57 PM. |
#7
|
||||
|
||||
Heck I thought I was hot stuff in 1971 running a "Judson Magneto" CDI coil on my 409 Impala to keep from fouling plugs!
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#8
|
||||
|
||||
Thanks for the feedback. I plan to mainly use this on the street. It may see the track a few times on fun days. But not on a regular basis. Just wanted to see if this was a good box to run since I can get it for only $100 new in box.
__________________
67 Firebird Convert 455 +.060 TH400 74cc KRE d-ports piston dished 16cc H-beam rods Comp Cam 305-AH-8 cam 108* LSA 253/260 @.050 duration .577/.594 lift w/1.65 rockers Ford 9" 3.50 Detroit Locker M/T Sportsman Radials 31x18x15 on Convo Pro 15x15s |
#9
|
||||
|
||||
I run a Digital 6, 10 years w/o issues. I like the start retard and two rev limiters.
__________________
1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
#10
|
||||
|
||||
i have a couple of digital 6al2 boxes on street vehicles, no problems. but i have ready to run distributors in both and could easily rewire to use the internal module if the box failed.
|
Reply |
|
|