MSnS v. 3.0 wiring question

[rztmartini]

Am i sadly mistaken, or with the MSnS v. 3.0, i can just wire it up to my relay board like this and im good to go?

 

 

[z-ya]

In theory, yes. If you do everything right the first time, it will just fire right up. But there is a fair amount of wiring, and most people are bound to make some mistakes. So plan on debug time. And also plan on dyno time.

[JMortensen]

rztmartini--Please use descriptive titles, I'm going to change this one. Take a look at the newly revised rules too: http://forums.hybridz.org/announcement.php?f=61&a=2

[rztmartini]

yes sorry about that...thank you for re-naming it.

 

as far as using the GM HEI, will there need to be any changes to the board itself?

[Matt Cramer]

The drawing you see there assumes the board is configured for the Hall sensor / optical trigger input (if you bought a preassembled board from us, that's how we set them up by default) and that you have included the spark output through VB921 mod.

 

With the GM HEI module output, it depends on which pin you are trying to trigger it from.

[rztmartini]

so if i want to use the stock 83 zxt dizzy and the VB921 to fire ignition, what modifications to the board itself needs to be done?

[Matt Cramer]

We've got a complete write-up on what board mods you need on the article where that drawing came from:

 

http://www.diyautotune.com/tech_articles/how_to_megasquirt_your_280zx_turbo.htm

 

If you bought it preassembled from us, it should have all the input mods already done, unless it was a special order. The input mods are removing C12 and C30, jumpering D1, and removing R57. These mods are all there for triggering off a coil terminal, and our usual preassmbled units are not built that way.

[big-phil]

We've got a complete write-up on what board mods you need on the article where that drawing came from:

 

http://www.diyautotune.com/tech_articles/how_to_megasquirt_your_280zx_turbo.htm

 

If you bought it preassembled from us, it should have all the input mods already done, unless it was a special order. The input mods are removing C12 and C30, jumpering D1, and removing R57. These mods are all there for triggering off a coil terminal, and our usual preassmbled units are not built that way.

So Matt I got a preassembled ms1 v 3.0 from you, the mod mentioned here has already been done?

[Matt Cramer]

The input mods will be already done. Our off the shelf unit will not have the jumpers for the direct coil control output mod, although we have built some special order units set up that way. If you did not special order it with the mod in place, here's how to add it:

 

http://www.msextra.com/manuals/MS_Extra_Ignition_Hardware_Manual.htm#singlecoil