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  1. m42racer
    05-09-2010 08:30 PM
    m42racer
    I have been reading the posts here for sometime and have up to now decided not to post anything. However, I felt certain information has to be told in order to give those who are thinking or are interested in moving over to another EFI system, should know.

    I read a few posts above this one how the Electromotive is the system of a choice for one company. That's great as you want your supplier to have a rerason to promote it and sell it. Then you can be assured the syetm will be the correct one for your application, and capable of doing what you want it to do. But it should be told to you if there are any features it cannot do or what you have to use or fit in order to use that application. What type of Ignition can it control, can you use any type of Coil, what kind of Injectors can it control, etc etc etc.

    #1. Link verses Vipec

    Link Electrosystems based in New Zealand makes the Link EFI system and the Vipec. The Vipec is just a private label system of the Link. It was started by Ray Hall in Austraila after he stopped selling the Autronic. He re named the Link a Vipec so that he could sell against all of the Link Distributors around the world. Is there any difference between the two. No. They both use the same firmware and have the same engineering. They do have a different look in the tuning software, but it is only in the "front end" The firmware and background stuff is all the same. Obviously the Link personel who design the hardware and the software favor the Link brand and the distributors and dealers. If you want the better support, new features added etc, as in any brand, the parent brand is always the first to get it and as in this case, will always offer the better choices. Link offers for the 944 Turbo application, the Atom, Storm and Xtreme. Is there anything wrong with Vipec. Absolutely not as it is just a Link in another cover. As for price, the Link will always be less. The Link world wide distributorship has based it's pricing off the New Zealand retail. What you pay here in the US is the same as if your purchased it there with only the US import duty added and a very small portion of the shipping. Who would I choose to support with my buying dollar. I suppose I have some bias here as I was instrumental in having Link decode the factory triggering. I would hope that those looking to buy either brand would favor the Link brand in return for all of the hard work done by those involved in the Link application here in the US for 944 Turbo cars. I can think of Dave @ CEP among the best. CEP deserves alot of the credit as he has helped many here with their application and offeres a wide range of products in support of the engine. I cannot speak about the Vipec dealer here offering up the Storm, but I always like to support those who had a hand in its development as a pay back, and tend to look past those who rode into town on the backs of others. In any case, this comes down to personel choice. Yours not mine.

    #2 Is Link better than other EFI systems.

    This cannot be answered unless you are comparing the same features and the same tuning is done on the same engine by the same person. The very best system can result in a poor result if applied wrong and tuned poorly. It was stated the Electromotive can tune with 1/4° degree in the Ignition timing. I think Link does it in 1/2°. Does this make one better and more accurate than another. NO. Electromotive certainly does not have the Ignition control of any engine locked down. Nor does Link. Lets put it in perspective here. We are using the 944 Turbo as an application. We build the most radical race version of either a 2V or 4V engine. There is no way we run the Ignition timing limit up to 1/4° degree to knock. That is just not done, nor is it fruitful for gaining any Torque. That is just the pointed heads talking. We as users have to seperate the BS from the reality. Sure I believe they can program in 1/4° degree increments into the timing map, but you never have to use this fine adjustment. Also, it all comes down to the Trigger wheel. 60 teeth machined into the 6" diameter wheel dictate the information going into the ECU. Remember, garbage in is garbage out. To know which system is better, you would have to compare all systems on the same engine under the same conditions. Does Link have good Ignition control. Yes it does. It has extremely stable control and has alot of features to allow very precise Ignition control. Does any other system have this same control. Yes I'm sure they do. All this aside, we as users expect this to be the case as it's promoted by the seller. We should get what we paid for right? So as a user we need to look at what is BS, what is self promoting and what is really true. The only way to do this is by investigating systems and other user's feedback. This forum is a good way also. Another area we need to look at is what do I have to do to fit ths system, can it use any type of Ignition component, Injector types etc. This is where some systems lock you into a certain type of Ignition, Coil type, triggering etc. This then changes what you can reuse from the existing system, what you have to buy and the cost of fitting. Take the Electromotive system discussed earlier. It requires you to use the 60-2 Trigger wheel. You have to rely upon the Trigger wheel been accurate, have to fit it to the engine with special sensor mounts etc. This all adds to the cost, not necessarily the accuracy as suggested. Many other systems do the same, but they were not mentioned. Can you run the stock Distributor? No, often you have to use a special type of Coil pack. These are typical inductive types, sold as the most powerful in the world. Tests have shown this not to be the case and again this is the pointed heads doing all of the talking. Wasted spark is bantered around as been some sort of voo doo Ignition. In fact it is a weaker system than stock, if the stock Coil is in good shape. Wasted Spark 1/2's the energy going to the cylinder on compression. The stock Distributor system is sequential and all of the energy created within the Coil goes to the cylinder. Some say its more accurate to use Crank Triggered Ignition. Under the most strickest conditions this is true. But there is nothing sold in our world that complies with those terms. The Trigger wheels I have seen are so inaccurate, the timing changes every engine revolution. Take a look with your timing light next time. It will amaze you. Again this all hype to self promote a system. Is the factory system any more accurate. No. It too is inaccurate as the teeth are machined within a standard acceptable machining tolerance. Our application does not require absolute accuracy as suggested. Even in race engines, the inaccuracies I point out are still far smaller than the mechanical inaccuracies involved in engines.

    #3 Do your homework.
    I have listed what I think are the important things to consider when buying an aftermarket system. Some may disagree and some may have other valid points. Listen to them all.

    What am I trying to achieve. What do I want controlled. Why am I changing systems.

    Does this system offer what I need. Do I have choices in Ignition components, Injectors etc.

    How much do I have to change to fit this system. How long will it take to fit. Does it come complete. Can I do it myself.

    Can I get support from others who use it or have used it. Is it easy to use . Remember the tuning software is the use part you will use.

    Does it have other added features and what are they. Do these come as stsndard or do I have to "buy" these.

    What choices in system levels are offered by this brand. Do I have to buy the most expensive just to get this engine running.

    In conclusion, it is good that systems are been offered by many for this application. It only helps to increase the product offered to us all. Just find you way through all of nthe BS and filter out the garbage and the self promotion.

    My best advice is to look at the seller and what they do and what else they offer. If they offer other high end services, other high end parts, then the system they will offer will also be of high quality as these companies have their reputation at stake, and would have done their homework. They will not offer you a system they do not feel is up to the level of their reputation. Never. That is, if they truly understand what they are selling. We as buyers need to know they do.

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  • Last Activity: 07-31-2010 05:17 PM
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