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Hello all, I'm new and have a question. I just got my 2013 Kawasaki Teryx Sport 750 2 seater engine rebuilt with an 840 big bore kit, also added a sport utility clutch kit, high performance air filter, a Power Commander V, and dual oxygen sensor auto tune kit. I have way more low end and mid range power now which was one goal. One big goal of getting the PCV though was to raise top speed (I would be happy with just a solid 55mph). However, after using rev extend option and getting the code to raise to 8700 rpm, I still can't get past 50mph! I hooked my computer up on my last ride and even on a paved, slightly downhill slope it showed that I'm only hitting around 7950 rpm with pedal on floor? I'm confused. Running stock 26" tires and stock exhaust. Any advice would be great!
 

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2016 Teryx4, 2018 Teryx 2 seater and dumpbed
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Hello all, I'm new and have a question. I just got my 2013 Kawasaki Teryx Sport 750 2 seater engine rebuilt with an 840 big bore kit, also added a sport utility clutch kit, high performance air filter, a Power Commander V, and dual oxygen sensor auto tune kit. I have way more low end and mid range power now which was one goal. One big goal of getting the PCV though was to raise top speed (I would be happy with just a solid 55mph). However, after using rev extend option and getting the code to raise to 8700 rpm, I still can't get past 50mph! I hooked my computer up on my last ride and even on a paved, slightly downhill slope it showed that I'm only hitting around 7950 rpm with pedal on floor? I'm confused. Running stock 26" tires and stock exhaust. Any advice would be great!

Did you ever figure out how to raise the speed? We have a 2016 teryx4 and a 2018 2 seater teryx camo and both top out at about 49 mph. Getting to 55 mph would be great.
 

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Teryx4 2019 , Alba flash ECU light bar mod lights rear HD bumper Boss radio,RPM /temp gauge horn
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the only way you can raise your speed is flaching your computer , it does not matter how many things you do to the engine, the ECU will not let it go more than 49 mph,I did get my ECU flash nothng else was done to the engine and top speed is 62 mph on GPS the spido is off 2 to 3 mph the reverse speed is no limited,
 

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Teryx4 2019 , Alba flash ECU light bar mod lights rear HD bumper Boss radio,RPM /temp gauge horn
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13 Posts
flashing is to get a new map for you ecu ,that will change the way your ecu manage your engine, the reason your t4 does not go over 49mph is that is limiter set on the ECU ,no that the t4 can not do over 49 mph, my does 62 mph on a gps and is stock ,the spedometer is off 2 to 4 mph, the same than the RPM and reverse all are controled by the ECU you can spend alot of money on extra parts an all you get is go from 0 to 49 mph faster, I send my to alba racing (Team Alba Racing - ATV Racing Parts & UTV Performance Parts) go to there website and check on it, I got a used ECU for $250 and keep the original just in case,( a new one is about $700 ) is been working great, I use my t4 on the street too, I added horn, turn signal and got the tag so I can use it on the stree is better than have to trailer it to the trails and it realy work great, if you going to get an used ECU make sure it will work for your year and model
have fun😀
 
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