seems high for stock but whatever... I'll always like to hear good news. :thumbsup:
2009 Stock CTS-V - Dyno @ 520 rwhp
Today was an all V Dyno Day at 21st Century Muscle Cars. A stock 2009 CTS-V was present and made three runs on the Dyno. The first was 493 rwhp, the secoond was 506 rwhp and they noticed that the engine was losing intake pressure on the top end. They removed the top of the airbox and setup the fan directly in front of the left side of the bumper.
The third run pulled 520 rwhp from a stock V. This was on a dynojet and all other Vs that ran were in line with expectations for mods, etc...
The highlight of the day for sure....520....come on...
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The third run pulled 520 rwhp from a stock V. This was on a dynojet and all other Vs that ran were in line with expectations for mods, etc...
The highlight of the day for sure....520....come on...
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I don't understand how dynos can read numbers all over the place (save for dynos that are measuring different things, like one dyno reading the tires, while another is reading the axle, etc.).
All it is is a measurement of foot-pounds of torque at the wheels, nothing more. How can that be off (unless the dyno is "broken" and isn't really measuring foot pounds of torque)???
"Well, with our dyno, your car is really pulling 90% of a foot pound of torque (per unit). It reads a little differently"
How does that make any sense??
Don't misinterpret--I easily understand how conditions, say, like weather, can influence what's actually being generated by the car at that moment in time, that's fine and dandy. What's confusing to me is how the dyno can read anything other than foot pounds of torque. In other words, assuming all other things equal (like weather conditions and such), how can different dynos read/generate different foot pounds of torque?
All it is is a measurement of foot-pounds of torque at the wheels, nothing more. How can that be off (unless the dyno is "broken" and isn't really measuring foot pounds of torque)???
"Well, with our dyno, your car is really pulling 90% of a foot pound of torque (per unit). It reads a little differently"
How does that make any sense??
Don't misinterpret--I easily understand how conditions, say, like weather, can influence what's actually being generated by the car at that moment in time, that's fine and dandy. What's confusing to me is how the dyno can read anything other than foot pounds of torque. In other words, assuming all other things equal (like weather conditions and such), how can different dynos read/generate different foot pounds of torque?
Even with correction factors there are variations. Engine dynos will vary 2 percent from one to another even with all things being equal. They are simply strain gauges with math to account for the deformation.I don't understand how dynos can read numbers all over the place (save for dynos that are measuring different things, like one dyno reading the tires, while another is reading the axle, etc.).
All it is is a measurement of foot-pounds of torque at the wheels, nothing more. How can that be off (unless the dyno is "broken" and isn't really measuring foot pounds of torque)???
"Well, with our dyno, your car is really pulling 90% of a foot pound of torque (per unit). It reads a little differently"
How does that make any sense??
Don't misinterpret--I easily understand how conditions, say, like weather, can influence what's actually being generated by the car at that moment in time, that's fine and dandy. What's confusing to me is how the dyno can read anything other than foot pounds of torque. In other words, assuming all other things equal (like weather conditions and such), how can different dynos read/generate different foot pounds of torque?
1 - 20 of 69 Posts
