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Shouldn't HP and torque always cross at 5252?

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(@mikefries)
Posts: 29
Member
Topic starter
 

I'm just making some of the very first test's with my homemade dyno and I'm not seeing the HP and torque lines cross on my chart at 5252. 

I'm using the yourdyno 30 tooth trigger wheel and its driven at half of crankshaft speed so I'm using a 2:1 gear ratio in the software.  I also have a 20kg load cell calibrated with 14Lbs of weight and a 6" torque arm. 

I attached a screen shot of one of my runs.  The engine is a 60cc two cylcle from a chainsaw.  Thanks 

 
Posted : 07/05/2023 5:22 pm
(@admin)
Posts: 1457
Member Admin
 

Yes they do (when Torque is in lbft), but only when the HP and Torque graphs are using the same scale. Right click and choose Synchronise Y1 and Y2 axis. 

 
Posted : 07/05/2023 5:53 pm
Six_Shooter reacted
(@mikefries)
Posts: 29
Member
Topic starter
 

Thanks Jostein,  that did the trick.  I had to synchronize Y1 and Y2 axis.  

 
Posted : 15/05/2023 3:20 am
Jostein reacted
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