MSD Tech Support Forums http://www.msdignition.com/forum/ This is a tech support discussion forum. To find out about MSD Ignition, go to http://www.msdignition.com/ . en Wed, 16 May 2012 20:06:27 GMT vBulletin 60 http://www.msdignition.com/forum/images/misc/rss.jpg MSD Tech Support Forums http://www.msdignition.com/forum/ Which MSD Starter Do I Need http://www.msdignition.com/forum/showthread.php?t=17973&goto=newpost Tue, 15 May 2012 19:36:50 GMT Hi

I have a 1977 Camaro Z28 with a SBC 383 strocker in it. Right now I am using the original starter from the car and it isn't cutting it. Which starter would be the best for my application ? ]]> Applications 77ZDER http://www.msdignition.com/forum/showthread.php?t=17973 Mercruiser Thunderbolt IV replacement http://www.msdignition.com/forum/showthread.php?t=17972&goto=newpost Tue, 15 May 2012 18:14:24 GMT I have a 1990 Mercruiser 5.0LX engine with an Alpha I outdrive. I want to replace the Thunderbolt IV ignition system. I was told by a MSD... I have a 1990 Mercruiser 5.0LX engine with an Alpha I outdrive. I want to replace the Thunderbolt IV ignition system. I was told by a MSD distributor/rep that there isn't a MSD system to replace that ignition with. The problem is the shift kill switch. When shifting out of gear the drive needs the engine to be momentarily stalled in order to release the shift dog. If the engine doesn't stall/hesitate the drive wont release and the boat will keep moving foward. Is there a diagram that shows this installation? I was thinking about hooking the negative side of the coil to this switch. I was told by the MSD rep that this would ruin the coil. ]]> Installation Questions bugging57 http://www.msdignition.com/forum/showthread.php?t=17972 which MAP sensor for digital MSD6 http://www.msdignition.com/forum/showthread.php?t=17971&goto=newpost Tue, 15 May 2012 08:22:18 GMT Hi there. I have a programmable 6 box. Is a standard GM/aftermarket style MAP sensor compatible with it? thanks Hi there. I have a programmable 6 box. Is a standard GM/aftermarket style MAP sensor compatible with it?

thanks ]]> Installation Questions simon.burch http://www.msdignition.com/forum/showthread.php?t=17971 <![CDATA[Rev Limit Verification Feature won't shut off]]> http://www.msdignition.com/forum/showthread.php?t=17970&goto=newpost Tue, 15 May 2012 06:21:23 GMT I followed the instructions found here to no avail http://www.msdignition.com/WorkArea/DownloadAsset.aspx?id=15032386117 I tried grounding direct... I followed the instructions found here to no avail http://www.msdignition.com/WorkArea/...id=15032386117

I tried grounding direct to the battery as well as other verified grounds.

I tried 5 seconds, 7 seconds, 10 seconds, 14 seconds... nothing works.

Ground first, then turn the ignition on, then pull off the ground after the given amount of time. No luck.

The LED on the box stays on solid grounded or ungrounded. It only goes off when I attempt to start the engine.

For what it's worth, my 6AL came from the factory with the feature activated. Please don't tell me I have to send the box back to the factory to get the feature deactivated! ]]> Trouble-Shooting tomeric914 http://www.msdignition.com/forum/showthread.php?t=17970 Does This Combination Make Sense http://www.msdignition.com/forum/showthread.php?t=17969&goto=newpost Mon, 14 May 2012 23:12:53 GMT We have amassed quite the combination of MSD Components for our 526 Mopar project: some purchased, some gifted from other projects. - Distributor:... We have amassed quite the combination of MSD Components for our 526 Mopar project: some purchased, some gifted from other projects.

- Distributor: 8387 Ready-to-Run
- MSD 7AL
- MSD 2 Step

Question 1: Is there a wiring diagram for connecting the 7AL to the 8387?
Question 2: Where can we purchase the two prong plug that connects the 2 Step to the 7AL (this part is missing from the harness we have).

Thank you in advance,

J ]]> Applications PowerWagon http://www.msdignition.com/forum/showthread.php?t=17969 MSD Starter, Battery Size? http://www.msdignition.com/forum/showthread.php?t=17967&goto=newpost Mon, 14 May 2012 18:30:36 GMT I have a Optima Battery
" 35 (8020-164)
RedTop®; Battery Group 35; Cold Crank Amps 720; Crank Amps 910; Reserve Capacity 90"
It is in my corvette 383 Stroker 12 to 1 compression, 6 AL ignition,

Is it big enough to power the MSD-5095 Starter? ]]> Applications Vtechcorvette http://www.msdignition.com/forum/showthread.php?t=17967 MSD 8969/nitrous wet kit...questions http://www.msdignition.com/forum/showthread.php?t=17966&goto=newpost Mon, 14 May 2012 18:27:11 GMT I have a 1995 Ford Lightning...i have installed a nx single nozzle wet kit...i have been running the nitrous kit for about a year with no window... I have a 1995 Ford Lightning...i have installed a nx single nozzle wet kit...i have been running the nitrous kit for about a year with no window switch...i picked up a brand new MSD digital window switch from a good friend for a good price...i had a friend install it and tested the switch out on the street and saw that it engaged the nitrous at the given set rpm...i did not run the entire 1/4 due to me thinking everything was working properly...i was finally able to go to the local race track...i armed the nitrous as usual and at 2200 (set rpm) my nitrous engaged as planned...however, a few moments later the nitrous "cut off", engaged, "cut off", engaged, etc throughout the entire pass...what can the problem be? The window switch turns on with the ignition, the switch is reading rpm's, and the switch allows me to set the rpms for the nitrous...i did notice once during the pass that the window switch read 0 for some reason...

Any thoughts? My nitrous kit is wired with a relay...also, a diagram would be cool if possible to show me exactly how to wire the switch...i guess the power wire, ground wire, and tach wire is a no brainer...the yellow wire is the one i'd like to see exactly how it is suppose to run...to the relay? Or to the ground of the solenoid....if grounded to the solenoid, then both solenoids or just one?

All help is appreciated! ]]> Trouble-Shooting roostracing http://www.msdignition.com/forum/showthread.php?t=17966 Is a 6AL installation with coil packs possible? http://www.msdignition.com/forum/showthread.php?t=17965&goto=newpost Mon, 14 May 2012 03:20:33 GMT I'm about to drop a 5.0 into an S-10 (yes, take that chevy boys lol). The motor is out of a 97 explorer and doesn't have a normal distributor but instead it has coil packs. Is there a way to use the 6AL box to control the ignition, or do I have to grab a TFI distributor from a mid 80's - up 5.0? ]]> Installation Questions my77stang http://www.msdignition.com/forum/showthread.php?t=17965 Shortest Distributor and Cap http://www.msdignition.com/forum/showthread.php?t=17964&goto=newpost Mon, 14 May 2012 02:54:53 GMT I recently purchased an 8479 distributor for my Ford 302 motor that I am installing in a 1974 MGB. I want to keep the stock hood and avoid any scoops... I recently purchased an 8479 distributor for my Ford 302 motor that I am installing in a 1974 MGB. I want to keep the stock hood and avoid any scoops or hood bulges. When I researched the different distributors, I decided the 8479 and 8579 were the shortest available. Unfortunately I need it to be a half inch lower! Do you supply a shorter cap? Is there a shorter distributor?
Thanks for any help you can give me.

Martyn in Canada. ]]> Installation Questions mgharv8 http://www.msdignition.com/forum/showthread.php?t=17964 Where to place my ignition box? http://www.msdignition.com/forum/showthread.php?t=17963&goto=newpost Sat, 12 May 2012 22:01:00 GMT So I have a 6AL ignition box for my 1985 Mustang. I have heard these ignition boxes are pretty touchy when it comes to water, so I am a little... So I have a 6AL ignition box for my 1985 Mustang. I have heard these ignition boxes are pretty touchy when it comes to water, so I am a little nervous about having it in the engine bay. I was planning on mounting it on the opposite side of where the battery is placed in these mustangs, but I wouldn't know how to keep it dry if I were to go through a heavy rainstorm or a car wash. Could I get some advice on where to not only put the ignition box, but also how to keep it dry if I need to? Thanks!
(the pic is not mine, but that's a typical '85 engine compartment. I have room on the other side from where the battery is.)
Attached Images
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]]> Installation Questions KWBass http://www.msdignition.com/forum/showthread.php?t=17963 7al-3 http://www.msdignition.com/forum/showthread.php?t=17962&goto=newpost Sat, 12 May 2012 03:25:16 GMT does anyone know if i can buy a wiring kit for a 7al-3. i am mainly looking for the harness for the distributor does anyone know if i can buy a wiring kit for a 7al-3. i am mainly looking for the harness for the distributor ]]> Installation Questions Thumper650h1 http://www.msdignition.com/forum/showthread.php?t=17962 <![CDATA[What causes "Stalagmites" on the distributor teminals?]]> http://www.msdignition.com/forum/showthread.php?t=17961&goto=newpost Fri, 11 May 2012 02:36:29 GMT Working through some issues so I cleaned the terminals last saturday on my distributor cap. After about 20 miles of driving I have the buildups show... Working through some issues so I cleaned the terminals last saturday on my distributor cap. After about 20 miles of driving I have the buildups show in the pictures at the ends or corners of the terminals. What causes this? I'm having a breaking up issue around 4000-4500 RPM. I thought it was carb but swapped in another carb and same thing. So I'm checking ignition. Pro Billet/Blaster 2/Digital 6+, 1966 Fairlane 390/ Speed.



Thanks, ]]> Trouble-Shooting fairlaniac http://www.msdignition.com/forum/showthread.php?t=17961 Msd Pro Mag and Msd 7531? http://www.msdignition.com/forum/showthread.php?t=17960&goto=newpost Fri, 11 May 2012 01:21:52 GMT My ? is can i use the Msd 7 digital"s box with a Msd Pro Mag 20?The reason for this is to control the launch on my Dragboat leaving the line.This is a BBC blown alcohol PSI blower motor at 90 overdrive.


Jim ]]> MSD Pro Mag Tech Section cheyenne580 http://www.msdignition.com/forum/showthread.php?t=17960 I am quite upset with my 6a box http://www.msdignition.com/forum/showthread.php?t=17959&goto=newpost Fri, 11 May 2012 01:14:38 GMT History Last April I bought a mustang with a 351w and a full MSD setup (6a box, blaster III, ready to run dizzy). The first time I drove it to work... History
Last April I bought a mustang with a 351w and a full MSD setup (6a box, blaster III, ready to run dizzy). The first time I drove it to work it ran great but then in the evening it would not fire. After several hours of trouble shooting I determined the box failed. Since it came with car and I had no knowledge of its condition I bit the bullet and bought a new box. I wired the box in exactly the same way as the old box, turned the key, and the car fired right up.

Flash forward 13 months.
I just had to get towed home. Was driving at high speed in 5th gear and the car turned off. I coast over to the side road and attempted road side trouble shooting. Car cranked fine but had no fire/turn over sound. First I checked for gas, carb was squirting just fine. So then I pulled the coil wire and grounded it to the chassis....no spark. So I pulled out my roadside kit and swapped for a brand new coil that I carry with me. Crank car, no fire. Get car home, pull MSD wire from box to dizzy, short the pins and get no spark.

So the box has gone bad AGAIN.

This leads me to suspect something in the car causing the failures.
I have decided that I will
1. Install a late model 1 wire alt setup and lose the voltage regulator
2. The box is grounded to the mount screws so I will move the ground and take it all the way back to the battery
3. What other things could cause 2 box failures in basically 1 year? ]]> Trouble-Shooting dodgestang http://www.msdignition.com/forum/showthread.php?t=17959 2225 line connections http://www.msdignition.com/forum/showthread.php?t=17958&goto=newpost Thu, 10 May 2012 22:37:47 GMT will the 2225 pump accept the push-on to AN type fittings for the fuel lines? Thanks will the 2225 pump accept the push-on to AN type fittings for the fuel lines?

Thanks ]]> Installation Questions jetdoctor http://www.msdignition.com/forum/showthread.php?t=17958