MSD 6A ignition box

[T Man]

Ok guys I have a question. I am considering an MSD 6A box. Realisticaly what am I gonna get out of it? Better MPG? More HP/TQ. I have a friend keeping his eyes peeled for one 60 or less. I know that is afuly cheep for that, but im not in a hurry either. If they are any good in my opinion I am gonna run one on my Burban (the dime is sort of a test bed for that truck). So tell me what you guys running them have actually experienced.



Since I dont want to make another post, I also want to know what you guys think. roller rockers or headders first?

Oh yeah, visit my cardomain site to vote on it, and sign my guest book while you are at it

[OBI WAN]

MSD on every vehicle I ever ran it on gave me a tad better throttle response, easier starting and over 1 MPG's.
Headers first!

[DROPPEDGMC]

flamed s-10 put one on his. that with the msd wires and different plugs made a differance. i think he said 1-2 mpg better and better off the line. we also did an elctric fan that complimented that

[nomaboy]

It will be the first thing I do to any other vehicle. I got better throttle responce and it pulls a lot harder all the way to 100mph. well worth the money IMO.

[LEADFOOT]

I like it. It was one of the first things I installed. Seen a little seat of the pants difference. The first mod I did was diffuser mod, then the next day I install the K&N FIPK. When I ordered the 6A summit told me to order Taylor spiropro wires. I think the MSD wires are the best because they have the lowest resistance. I don't know if they make the MSD wires for my truck though. I tried to get a MSD cap and rotor for my truck and they don't make it. Basicly they only make stuff to fit there distributors. I called MSD and they said they didn't have a cap and rotor to fit my stock dist. I ordered the ACCEL cap and rotor. Jedi and some other guys said napa echlin but I tried them and the cap and rotor doesn't have brass anything in it.

[OBI WAN]

You actually want a little more resistance when running resistor plugs. Those who have had some coil problems etc is due to the power backing feeding up the wire it doesnt need to run to freely. The best set of wires I ever ran with the MSD were factory ones, the Taylors wires are a close second!!

This low resistance stuff is really meant for the track with little as possible in the wires and none in the plugs running high rpms, trying to fire overly rich tuned and exotic fuels!!

[bvr775]

I've ok results with msd control boxs. I really like thier distributors, as for their spark control boxs on stock engines I've never been impressed. I really like the mallory boxes It seems like their more stable and more versitale, but i've never hooked one to an obd equiped vehicle either. i thinck they a bit less exspensive now as well

[LEADFOOT]

You actually want a little more resistance when running resistor plugs. Those who have had some coil problems etc is due to the power backing feeding up the wire it doesnt need to run to freely. The best set of wires I ever ran with the MSD were factory ones, the Taylors wires are a close second!!

This low resistance stuff is really meant for the track with little as possible in the wires and none in the plugs running high rpms, trying to fire overly rich tuned and exotic fuels!!
So then I got good wires and summit didn't send me in the wrong direction. Not to knock summit but sometimes they don't know what they are talking about. They are pretty good for questions about performance but they don't know everything. Summit told me when I ordered the 6a that you couldn't run factory(stock) wires cause the 6a would burn up the insides of the wire. They said you have to have solid core wires, I think its solid core. Something like that. I'm still running the stock coil. They told me it wouldn't do anything if I got the blaster coil or a similar msd coil, the stock one is just fine they said. Whats your thought on that? What should I do?

[LEADFOOT]

I've ok results with msd control boxs. I really like thier distributors.
What is the advantage of the msd distributor over the stock dist?

[OBI WAN]

What is the advantage of the msd distributor over the stock dist?
Wouldnt worry of even think of it until I either spent alot of time racing of doing a ground up. Just its solid, very well builts and wont runout etc like others can, but there is more.

I ran my MSD6AL with factory wires on 2 vehicles for over 100,000 total and never had a problem. I ate one set of MSD wires, one set of Cranes Firewires at 8mm and a 10mm set. Went back to factory wires when Arthur offered me a set he had bought for his S10 before he got rid of it and never used. They were Taylor Spiro wires and had them on the Noma for 15K when I traded it in and now since I took them off the Noma I use them on the Blaze and added another 20K and still work fine and look new.

Nope, DONT DO THE COIL. Something and NO ONES ever figured out exactly what it is, eats MSD coils when used in conjunction with a MSD box on these newer ignition systems from the factory. I ate 3 MSD Blasters when they first came out in 3 months and MSD was suprised and had me send them all back direct and they replaced them. They were new coils just came out so they wanted to see if it was the manufacturing process. When I got the 4th I put it to the side and kept it and never ran it ever until this last truck. The last thing they told me to do was isolate the coil from EVERYTHING metal cause they thought somehow between the extra voltage, multiple sparks, low resistance wires etc I was getting a voltage bounce that was grounding out through the sides it the coil to the metal surronding mount. SO I built a special plastic isolater for this coil and have about 20K on it and its fine. But I aint buying it completely yet and it really makes no difference in it!!

I was told a few years back that factory coils since the advent of the P0300 code and OBD2 are made to fire at 38,000 volts which I never confirmed, but makes sense, so and aftermarket coil isnt gonna do much if anything. Old days coils could put out as little as 24,000 so thats when the coils aftermarket got there claims from!

[bvr775]

What is the advantage of the msd distributor over the stock dist?
none on a stock engine. aftermarket "perfomance" distributors or built to handle high rpms above 5500(in gerale they will run up to 10,000 rpm+ depending on your needs) , have adjustable phaseing (you can advance or retard the rotor and/or mechanical advance for finer tunning) and if you have a pre obd GM ignition module you can eliminate dwell fadeing above 4500.