Both the 6AL (MSD part 6425) and 6AL-2 (MSD part 6421) can be used on most 8-, 6- (even-fire), or 4-cylinder engines, so chances are good that it will work on your Datsun, but be sure to reference the install instructions prior to purchase. The 6AL has a single step rev limiter while the 6AL-2 has a two step rev limiter. Both ignition boxes have a tach output wire to connect to your tachometer, but this is not required to operate the ignition box.
The digital 6AL does not require a tachometer to set the rev limiter. It features a built-in, rotary dial that allows you to set your RPM limiter in 100 RPM increments.
I just installed this in the drag Camaro and it's awesome. Just an FYI - check to make sure that you don't need an adapter if your running GM HEI. I did need an adapter because I was running a Summit Racing aftermarket distributor. And a side note. If you are an NHRA racer or plan to race - per NHRA rules - they "prefer" that the unit is "not in reach of the driver" per the NHRA General rules regarding a 2-Step.
Yes... it's a creative way for remembering the stages of the four-stroke engine cycle. INTAKE (SUCK) COMPRESSION (SQUEEZE) IGNITION (BANG) EXHAUST (BLOW)
Yes, the MSD 6AL can be used with a GM HEI distributor. Please visit our website to view the MSD 6AL installation manual and learn how to wire it to an HEI distributor.
Some vehicles with factory tachometers may require a Tach Adapter to operate with the MSD. For more information on how to install these devices in your vehicle, please view the PDF instruction sheets available on our website.
@MrF20accord The 2-step is triggered by providing 12 volts to the blue wire, which could be connected to your line lock, transbrake or a manual switch. A link to the downloadable PDF instructions is now in the video's description. See page 5 for more information.
hello I have a 1963 Chevrolet van with its original engine 8 cyl 283 small block called l mk puedp question is will put a module like this and what do you recommend
I used a 6 al a 2 step a 7000 rpm top end chip in my maverick and a low speed adjustable chip for the launch, you only really need a tach for setting the low speed if you want to be absolutely sure of your settings most pro stock cars these days just have shift lights.
Hi.. What would cause my distributor rotors brass contact point to overheat so much as to melt its plastic insulation after installing my msd 6al digital?, bare in mind there is no misfire at all
Hello. MSD boxes have high and low thresholds and will not fire if there's too much voltage. Resistance=heat, so maybe there's a gap between the little contact on the rotor and the terminals inside the cap and it's arcing. MSD recommends using their low resistance rotor button to prevent this. This product should help you out: www.speedwaymotors.com/MSD-8412-Low-Resistance-Bushing-for-HEI-Distributor,104177.html
this isn't a tutorial video you fucking dolt,its showing what the unit does.its a demo.in the future avoid being a "trailer bred" idiot,if someone is near you and you act a fool like this you tend to get your chick-lets knocked out.
