My 432 dyno chart.
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- Joined: Wed Mar 10, 2021 10:41 pm
Nice chart. My only surprise is it did not pull more on top with the cyclone Tim's porting and no airbox. The airbox usually chokes the crap out of these things.
I am comparing it to my 432 with a Wiseco and a light port job by me with a slip on and full airbox. It was only down 1hp to yours on peak, however mine had over 30ft lbs of torque. I would think laying the chart over the top of mine you may have much more HP in the midrange.
Great work!
I am comparing it to my 432 with a Wiseco and a light port job by me with a slip on and full airbox. It was only down 1hp to yours on peak, however mine had over 30ft lbs of torque. I would think laying the chart over the top of mine you may have much more HP in the midrange.
Great work!
First off, you can thank Tim for building the motor.
Honestly, I was expecting a little more on top too but it is what it is. I wasn't there when it was dyno'ed and no timing was done, just fuel by way of the Power Commander. The Ti FMF can is shortened by 2.5". Don't know how much it affects power but I don't have a heat shield/flap under the Cyclone yet either. What cam timing is yours 2000EX?
Honestly, I was expecting a little more on top too but it is what it is. I wasn't there when it was dyno'ed and no timing was done, just fuel by way of the Power Commander. The Ti FMF can is shortened by 2.5". Don't know how much it affects power but I don't have a heat shield/flap under the Cyclone yet either. What cam timing is yours 2000EX?
The two issues with a ASSO piston is the lower compresion and small size. The only way to help them out is a set of gapless rings to maximize cyllinder pressure and run an oxygenated fuel . Those two things will get over 30ft pounds of torque and hp into the 50's . Such mild cam timing is great for a legal exhaust and boosting throttle response but is limiting midrange and top end. If running open exhaust 109/106 would be my prefered cam timing .
Nothing wrong with this dyno outcome. It wil be right even with most of the piped new quads. A world away from a stock 432 engine as far as power.
Nothing wrong with this dyno outcome. It wil be right even with most of the piped new quads. A world away from a stock 432 engine as far as power.