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Old 25 Nov 2009, 07:16 pm
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Default Can you run a vtec ecu with a non v-tec engine.?

I have a 97 Honda Accord lx 2.2 non v-tec, when the rmp hit about 4.5, I get a big power burst. I was wondering if maybe I had a v-tec ecu in the car, or if it is possible to run a v-tec ecu with a non v-tec engine?
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Old 25 Nov 2009, 07:31 pm
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Yes, but it wouldn't magically give you V-tec. What your are experiencing is the engine's power curve. Four cylinder engines are typically refered to as narrow power band engines. This means that these motors only make most of their power in a short range of rpms, like 4.5k to 6k in your motors case. V-tec engines have an extra set of cam lobes that increase the duration of valve lift at a preset rpm determined by the computer actuated by a solenoid located behind the distributor on F, B, D, and H series V-tec engines. As its a mechanical system having a V-tec ecu on a non V-tec engine would not provide you any beneficial power gains. It may even cause damage. If you are interested in making more power with that engine, look here http://www.bisimoto.com/
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Old 25 Nov 2009, 07:46 pm
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It will run it, but it will give you a check engine light. It will also limit the rpm's as well due to the vtec code being thrown by the computer.
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Old 25 Nov 2009, 08:01 pm
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VTEC ECU wont magically give you VTEC sorry this is your imagination.































VTEC is much more than just the engine computer (ECU).
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