Lizard928

Actually the local distributor for the VEMS was pretty useless to be honest. Though I did find their forum to be very helpful!

I also do have to admit that I dont really like the MS board connection. It does work, but is not as nice of a system.

Well when you finally get around to using the Cayenne COP units let me know. I do have the 8 plugs to use the COP units, and I may just do so on my own car using VEMS. But I will, like you will have to, modify the internal circuitry of the board to get the Cayenne units to fire.

Tom. M

Now that I'm into Audi's and Audi tuning..ran across a discussion on these coil on plug units... First link is to the stock A4 1.8T units...the second link are for the ULEV 2010 GTI 2.0 turbo COPs... Any reason why these wouldn't be better than the Cayenne unit's?

http://www.ecstuning.com/ES2065380/?...aign=postreply

or

http://www.ecstuning.com/ES281014/?s...aign=postreply

BC

Have you double checked the voltage output of the coil firing circuits in the newer MSX board? I think it may have changed. That may determine whether the installation and working of the porsche COPs will go smoother.

I'm sorry to hear about your distributor being flaky. With you saying that the VEMS forum was helpful is suprising to me. As far as I knew, there was a forum, with essentially ONE guy based in England who ran it and knew the answers. Otherwise you were SOL.

The MS board connections are a bit low-class. Since the beginning I Have always planned on a dual-box or internal boxing solution where everything the MS needs to do within its on complex is inside of a box that then only enters the outside world through some very good amp seal plugs, and then into a firewall plug, and then into a nice modular loom.

I couldn't stand having random wires everywhere. I just couldn't deal with it. I have dozens of websites bookmarked where I can get the great weather-proof plugs, and automotive grade wiring and sheathing. I learn more everyday.

Lizard928

Brendan,

Rob in England is a top notch guy and he answers questions very quickly.
If I post a question on the MS board, I get almost no responses as I have stumped them all.

The outputs for the MSX board are the same for the Ign drivers. None of them will drive the Cayenne units without modifying the circuit slightly. And when you have surface mounted components it is not easy to do that! The VEMS has much better board design, and no need to continually upgrading it.

The MSII system is a great entry, and gets you going very well. And at an unbeatable price.
The tuning software is great, and it is easy to learn, and adjust from the datalogs.
It only lacks some professionalism, and some features.
So if you feel the need for those features go with the VEMS.

BC

We will have to speak more about the Cayenne Coils. I really want them to work. It may need more study. Have you spoken to the creators about this issue? Can you link me to your description of the details again?

I think most of the MSII guys have moved onto the MSIII +X platform, so your questions may be falling onto uninterested people on those forums. The MSIII+X platform forums are much more active.

Lizard928

I have looked over the specs and price on the MSIII +X systems and decided if I wanted that I would go VEMS. But from my research the signal outputs on the board have not changed.

I now know exactly what is needed to get the cayenne coils to work. So when you are ready you know how to contact me.

I did speak with Matt @ diyautotune about the problems, and while he tried to help I ended up solving it with an old electrical engineer friend of mine.

If I can find 8 good Cayenne COP units at a good price then I will get them soon. They used to be $20/piece. Then they sorted them, and they put a new number on them and upped the price to $90

BC

They are 90 bucks now? I bought them when they were $12. If they are $90 now there is no reason to use them since we can use the LS2 coils in the way Todd uses them and the MS is made for those.

Can you link me to that post you made about them? What I am saying is that there may be a way to get the manufacturers of the board to beef something up.

I found this page:
http://www.msextra.com/doc/ms3/ignition.html

BC

Additionally, we need to talk about this as I Have the entire setup - the looms, the plugs, and the coils all sitting in boxes. I'd sell them all, and for a profit, since I paid less than they go for now new, if I knew its going to be some hit-or-miss battle and I can just do the LS2 coils.

Lizard928

Well, if you want to go the LQ9 coils that is fine. I already have a complete Cayenne engine harness. So I have the connectors.
But I do not have the coils.....

BC

Can you PM me on the needed changes and what you found about the board deficiencies? Or use my email address, which I think you have.

It was something about amps or similar.

Ducman82

whats the big advantage of COP vs the coil off on its own... how do the COP secure? pressure fit to head?

Lizard928

COP = Coil On Plug. This means that you simply put the coil on top of the plug.
CNP = Coin Near Plug. This means you mount a coil right close, but you still have a small ign lead to get the power to the plug.

Advantages is less wear items, and a cleaner look!

Z

And then a story gets made up trying to convince people that the oil coming out is because of an inherent design flaw in the engine that causes oil to pool in the heads?

Ducman82

anyone got any pics of a LS7 COP or any COP in use on a 928? id like to see how they look

yardpro

reading this thread is like trying to read greek.....