they did that. Again, IIRC, therer's only one sensor ground

 

Huh. So now we just wait for Matt to post it live on the website while the rest of us sit around thinking how smart we are for asking him to do so....

Oh yeah - I think someone already showed me, but is there a good mate for the MS3Pro's (ampseal?) connectors? Something I could put inline?

 

Yeah, I keep forgetting that they changed the wiring after my harness was made...

The males are only available in through-hole board mount, but that's really no different from how we solder-terminate to stock ECU connectors.

Not sure if this link will work properly, but: Connectors, Interconnects | Rectangular Connectors - Headers, Male Pins | DigiKey

I *think* that the "White" connector on the DIY documentation is what Amp refers to as "Natural." If I weren't so lazy, I'd verify that. The different colors are keyed differently, so they can only mate with units of their own color. (That sounds racist...)

 

Shoot DIY an email about it and they should be able to sell it to you that way. I know I have gotten a ton of things that are not listed on the site from them that way.

 

I've been doing a little emailing on the side, but I figure, if there's an awesome thread, someone else will find it and get the benefit of our labors.

But yeah - the cost delta is $150 between the kit and kit plus harness. I don't know how much they are making/losing on that, but for $150 I'm all done looking as soon as I find a mate for it. That's such a win, there's no joking about it.

Also, ~6 grounds on the MS3Pro. That's about right. The MSV3 had more than needed, so the unlabeled wires were more of an issue. If I'm going to USE that many for ground anyway, then they are fine.

It's really nice to see an MS-based product that's worth getting.... Much of it has been thought out and it's confidence inspiring. Poking around their page, the bare-board microsquirts (or complete usquirt kits) seem like the way to go for folks on a budget.

 

Getting there. Looks like Matt's making progress on the MS3x wire bundle. I can find plenty of places with lots of cheap wire, but really it's pretty hard to touch the power of buying in bulk that DIY is able to pull off. Waiting with bated breath for it to end up on website, certainly I've a few friends who are now thinking along similar lines. :-)

 

At this point, I'm not really planning to put it on the website, but we can set up an order by email. If there's enough demand, we can add it to the site.

 

BTW if you wanna be ---- about preventing noise contamination in your harness, have separate bundles for:

1) Noisy outputs such as IG, INJ, and solenoid outputs
2) Digital inputs such as cam and crank
3) Sensitive analog inputs such as O2, TPS, and MAP

Mixing say, wires from (1) and (3) in the same bundle, there's a lot of potential for noise to get into the sensitive signals.

It also helps to have each of the 3 bundles above, to have a shield which you ground to the engine block or to the chassis (at only one end), most especially for (3), followed by (1) so it doesn't radiate out into nearby wires.

EDIT: LOL @ ---- for a..n..a..l

 

Huh. I was thinking of doing two bundles, for sure. Doesn't HAVE to be on seperate physical connectors, but certainly it would help you to choose sides of the connector.

I would think putting the triggers in with the analog stuff would be less terrible than putting them in with the high power stuff and running the risk of false triggers.... Meh, maybe you have a point. What would you use for shielding material? Wrap everything in aluminum tape?

Of course, then I have to decide about putting the pins in the order labeled by DIY, or in the order I see fit. Who knows, maybe they already thought some of that out.

With shipping, and special "one off" savings, this wire bundle is kinda getting up there - but I still think it's the way to go. Need to get a group buy going. :-)