I think you can approximate that by load if they can't access a gear dependent map -- the ECU monitors gear if you have either SRM or AT. They might be able to set it up if there's an ECU wire they can tap.

If not, you'd need something like this -- maybe exactly this: http://www.jegs.com/InstallationInst.../249-82085.pdf.

Tommy - how much spray are you planning to run?

Like most, starting at 75.

Ok, I understand, which is a miracle in itself when it comes to wiring. The Zex unit would have been ideal, but they don't make it anymore and I searched for days and couldn't even find a used one, so I went with the MSD rpm switch.

Huh. That sucks :(

Actually, now that I think about it, load (or TPS), engine speed, road speed, and knowledge of how that breaks down for each gear will give you the values to plug into whatever window switch device you use, so this can definitely be done with the right controller :tup:

Zex window switch just counts the number of times rpm hits ur upper shut off rpm before it will engage at lower limit 3rd gear spray would be upper limit reached twice then its on does mad not make a "skip shift"?

Boy I wish I could get my hands on one of those Zex switches!:shakes head:

Are you sure no one has any in stock?

I got a bunch of hits googling the p/n -- it might be worth calling around to see if anyone has it in their inventory.

http://www.summitracing.com/parts/zex-82085

ZEX Traction Control Window Switch (79-12 All) at AmericanMuscle.com - Discontinued

ZEX Nitrous Systems Free Shipping on all Zex Nitrous Kits

Hey Jordo,
I called and searched everywhere and the only guy that has one is RPM outlet and wants $400.00 for it:shakes head:. I'm not so desperate that I'm willing to pay double. I do appreciate the help!:tiphat:
Figures, they were the only one I DIDN'T call because of the price, they have two!!! Now I sit here trying to decide, send back the MSD digital and bite the bullet and succumb to their demands!

Does it have to be a ZEX? A quick web search shows that MSD and NOS make one.

Those are both good choices, there in line with the MSD that I'm planning on using. http://www.msdignition.com/Products/...ow_Switch.aspx
The problem is, I'm looking for a skip shift function. The Zex allows you to do that. I can have it set on the line but won't spray until second gear.
I just called RPM Outlet again and tried to talk him down, no chance! They specialize in finding out of stock items and then mark them up for a huge profit. I'm all for making a profit but.....
SH!T this sucks, do I spend another $250.00 for that option. That's my AFR gauge out the window!

Do you have any friends/acquaintances that could build one for you or modify one of the existing units? It should be a fairly simple analog circuit - comparators for the window function and a counter for the skip-shift. Digital should be just as easy to design/build ( but more expensive) and have the benefit of a decent UI.

Edit: If the MT knows what gear it is in, you may be able to tap into that, but that would probably involve an OBD interface.

I may be able to reach out to some members on another forum that I belong to, there always making control boards and usb devices, I'll give them a shot.

The skip-shift thing sounds like a pretty great feature.

I think if you can't get the Zex one at a reasonable price (or at all) I think definitely see if you can find or build another traction control type device to use and then just return or sell off the standard controller you have now.

Hey Jordo and South, I reached out to Randy at Leash Electronics and asked him to try and duplicate it. No go, he also thought it was a great feature. No response from the other forum. So I guess I'm going to bite the bullet and drop the $400.00 for it, it's killing me :shakes head: to do it, but it's exactly what I'm looking for in a simple solution.