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Duraclutch and ECU Flashes

I get asked to set up a Duraclutch for a ECU flash regularly, as a general rule I don't change the set up for the flash.

Most people who are getting the flash done are Ranger owners probably more because Polaris restricts the throtte opening more in a Ranger more than any other vehicle.

What is a ECU reflash? Short explanation, I will let the people who do it give you a more detailed answer.  The main thing they do is allow the throttle plate open to 100% open when you mash the gas to the floor. All manufacturers don't allow the the throttle to open all the way, some more than others. Don't get me to lying, but I think the Ranger 900 only opens 65%, RZR might be 80% etc. Again don't get me lying on that, call the reflash people and ask about your vehicle. But changing the throttle really does not change where the engine makes it power pers say. I could write a book but it would be boring.

If you have a Ranger, a ECU reflash and a Duraclutch I will ask you how you drive it, if you drive it like a RZR where acceleration from say 30 mph to top speed is mostly what you are worried about we might change it, but if you use your Ranger for a Ranger and spend most of your time under 30mph which is what most Duraclutch owners do then we won't be changing your weights.

Why? Use me as an example racing my XP 900 RZR, acceleration was the most important thing to me racing not belt slipping jerky starts etc so I needed my clutch tuned to where the engine would get to where the engine make the most power for fastest acceleration. So therefore tuning is very important to me.

If you set the flyweights in a vehicle that has a Duraclutch and ECU reflash to match the higher rpm it can attain then actually use your Ranger for it's intended purpose you will complain about how high the engine rpm is driving slower and if you have big tires like 30" or bigger, get it in a bind where the duraclutch normally does well the lighter weights might make you lose some belt grip and actually slip a belt in a clutch it normally does not.

So it all depends on your riding style. This is nothing new and applies to vehicles with clutch kits. Meaning you set the kit up for where you ride. For more information on clutching for shift speed read the article on shift speed. Link to article on shift speed

The ECU flash and opening the throttle has more uses than running fast and higher top speeds, if you got in a Ranger to have full throttle power to get moving, helping you up a hill, get a trailer going etc then we are not changing the weights and you would not want to anyway. The ECU flash is good on a Ranger for sure, you just have to decide what you want it for.  Keep this one thing in mind, if you don't floor the gas now, what does allowing the throttle to open 100% gonna do for you if you are not flooring it now.

All of this applies to a RZR with a Duraclutch and Flash too, all depends on what you are doing it for and since you have a duraclutch in the first place one would assume hauling butt down the trail is not what you are doing, you are a slower driver where belt grip is needed more than anything.

Todd

Hunterworks Inc.
12097 Kelly Lane

Collinsville, MS 39325
Phone: 601-771-0070
Fax 601-771-0073

Email: todd@hunterworks.com

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