MSD DIS 4

[Paladin06Greg]

You order them from the same place..

can u post a link of the Tach Adapters also? Im not sure where to find those on that site.. also why do u need them?
thanks

[JoeB]

I called the tech line for MSD and asked what the difference was between the DIS-4 and the DIS-4-HO. The guy said, "the HO version is for racing only". I told him that was very obvious and explained in the description and asked if he could explain the technical difference. There was a pause and the sound of papers shuffling. Then he said, the HO version has a higher output but for a short duration therefor, only good for racing. For longer runs, you would need the street version. I don't know how much I believe that because not all racing is short duration... -JoeB

[JoeB]

Well, not satisfied with the first answer I got, I called back a few hours later. This time, the guy I talked to was very knowledgable. In defense of the first guy, this guy explained the difference was the HO (race version) had to dissipate a lot more heat because it put out so much more. When I described my application he said the regular DIS-4 would be plenty. We wouldn't need the HO version until you get up to 20-25psi. Even then, it isn't good for very long duration.

Next I told him that a friend told me that because we had coil packs, ignition upgrades were a waiste of time and money. He agreed that coil packs are much better than distributers because the duration of the spark is more controlable. But, he said that with the stock coil packs you are reliant on 12V to charge the coil packs. He said that any CD ignition system is much better and more efficient not just theirs. They hit it with an instant charge of 480V for the duration which gives it a much more efficient burn. He said on a stock car, it would make just a little difference but with the blower it will be noticeable. -JoeB

[jim@foreignaffairs]

I have installed many MSD ignitions on my own cars and others over 20 plus years, and they have either made no difference or a big difference. The main thing they help with is midrange torque when fuel mixtures are not optimum. I did get a wiring diagram from MSD a while back showing how to hook up the DIS4 on our cars with 3 coil packs. But I have not purchased one yet, partially because I'm not sure where to locate the box and I'm not sure its worth the trouble. This is the cool thing about an MSD: when you look at the ignition secondary on a scope, you see just how the multi-spark discharge works. It will attempt to fire the plug up to 5 times below 3000 RPM, until the plug fires. This is great on race cars or cars that have a problem running smooth at lower RPM. It really smooths out the idle. It probably won't have such a dramatic effect on our cars unless very highly modified. But if improper fuel mixtures prevent ignitions, it should make a noticable difference. Has anyone else installed one? Where did you locate the box?

Jim

[Paladin06Greg]

Hello Jim,

I spoke with you today about your fuel mod kit. I'll send the money order tomorrow. I ordered my MSD from:

http://www.sdpc2000.com/default.htm

I guess I'm guilty of starting all the fuss.

I have installed many MSD ignitions on my own cars and others over 20 plus years, and they have either made no difference or a big difference. The main thing they help with is midrange torque when fuel mixtures are not optimum. I did get a wiring diagram from MSD a while back showing how to hook up the DIS4 on our cars with 3 coil packs. But I have not purchased one yet, partially because I'm not sure where to locate the box and I'm not sure its worth the trouble. This is the cool thing about an MSD: when you look at the ignition secondary on a scope, you see just how the multi-spark discharge works. It will attempt to fire the plug up to 5 times below 3000 RPM, until the plug fires. This is great on race cars or cars that have a problem running smooth at lower RPM. It really smooths out the idle. It probably won't have such a dramatic effect on our cars unless very highly modified. But if improper fuel mixtures prevent ignitions, it should make a noticable difference. Has anyone else installed one? Where did you locate the box?

Jim

[SolaraT]

Yeah I think you'll be the first cause I don't recall anyone attempting this project.

O so sad... no apps for the 5s-fe at all cause it's got a different ignition set-up than the 1mz does. They did say it would work for the 1mz for sure but not the 5s.

Good Luck Man!

God Speed!

[jim@foreignaffairs]

While the DIS-2 may not work, MSD may have another ignition like the SCI that may work on your 4 cylinder application, have you asked about that?

Jim

[SC V6]

still searching that web page for the "tach adapters" and I can't find them

[SC V6]

is this it?
http://www.sdpc2000.com/cart.asp?action ... &pid=13397

[Paladin06Greg]

Just call the MSD 1-800 number..

still searching that web page for the "tach adapters" and I can't find them

[Paladin06Greg]

OK, in the shop getting MSD installed. I can barely wait..

[808Camry]

Let us know man!

[Paladin06Greg]

Had to work late tonight. The war on terror requires much from us all. Anyway I'll pick up th car tomorrow. The guy who installed it called me at work as he was closing to let me know "the MSD was money well spent". crap I might not sleep tonight.. LOL

Let us know man!

[wiz2]

Ok, so this would be used inplace of a SS FTC or in conjunction with?
Also would/could/should you use an SAFC for injector control ??

[SC V6]

I wonder how hard it would be to install this yourself.. anyone know?