My ported turbo rx8 video
06-20-2007, 05:28 PM
#76
1 PS = 75 kp·m/s = 0.73549875 kW = 0.986 hp (SAE)
297 PS = 292 HP
.62 BAR = 9 PSI
This dyno is corrected to "flywheel PS" by an unknown conversion factor, though it is typical to use 15%, so the "real" wheel HP is about 250 at 9 PSI.
Can't say the porting did much for the power - certainly not as much as running a better EMS (like the EMU) would have done.
297 PS = 292 HP
.62 BAR = 9 PSI
This dyno is corrected to "flywheel PS" by an unknown conversion factor, though it is typical to use 15%, so the "real" wheel HP is about 250 at 9 PSI.
Can't say the porting did much for the power - certainly not as much as running a better EMS (like the EMU) would have done.
06-21-2007, 02:09 PM
#79
I'd like to hear more details on the porting. Did the focus on the exhaust or intake? How much larger are the openings?
292 whp is not hard to get with a stock engine + greddy kit, so it's hard to say how much it helped.
292 whp is not hard to get with a stock engine + greddy kit, so it's hard to say how much it helped.
06-21-2007, 02:56 PM
#81
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1 PS = 75 kp·m/s = 0.73549875 kW = 0.986 hp (SAE)
297 PS = 292 HP
.62 BAR = 9 PSI
This dyno is corrected to "flywheel PS" by an unknown conversion factor, though it is typical to use 15%, so the "real" wheel HP is about 250 at 9 PSI.
Can't say the porting did much for the power - certainly not as much as running a better EMS (like the EMU) would have done.
297 PS = 292 HP
.62 BAR = 9 PSI
This dyno is corrected to "flywheel PS" by an unknown conversion factor, though it is typical to use 15%, so the "real" wheel HP is about 250 at 9 PSI.
Can't say the porting did much for the power - certainly not as much as running a better EMS (like the EMU) would have done.
Stock I was about 19 KgM
Turbo about 30-32 KgM
Ported turbo about 39 KgM after all those runs on the dynamometer.
After all I prefer 300ps with 39KgM than 350ps with 32KgM.
Any way we are in the beginning with that motor we have to do many things with that basic setup (turbine, intake, intercooler, lightweight flywheel etc)
Is there an other dyno from a ported turbo here? I am curious.
Thanks for sharing
06-21-2007, 03:03 PM
#82
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06-21-2007, 03:09 PM
#83
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How can I describe you how much larger are the openings?
06-21-2007, 03:15 PM
#84
Power!!
Here's a good thread you may want to check out. It lists rear wheel hp dyno plots of known turbo and Supercharger kits on the RX8. None of them are on ported motors though.
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/dyno-comparison-rx-8-turbo-supercharger-etc-115447/
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/dyno-comparison-rx-8-turbo-supercharger-etc-115447/
06-21-2007, 03:39 PM
#85
Parakalo
137.43 ft/lbs
217 - 231 ft/lbs
282 ft/lbs
Though that is a nice thought, it really isn't a choice since the two are interrelated. If you make a lot of torque, but not a lot of power, that is because your engine is running out of breath up top, not because you did something magical down low.
Once again, we are not sure how accurate these numbers are since your dyno operator was using some sort of conversion factor to calculcate back to flywheel numbers (though that is generally not needed for measuring torque).
That said, those are not particularly impressive numbers at 9 PSI on the GReddy, especially if it is corrected.
Originally Posted by Mauros piravlos
Stock I was about 19 KgM
Originally Posted by Mauros piravlos
Turbo about 30-32 KgM
Originally Posted by Mauros piravlos
Ported turbo about 39 KgM after all those runs on the dynamometer.
Originally Posted by Mauros piravlos
After all I prefer 300ps with 39KgM than 350ps with 32KgM.
Once again, we are not sure how accurate these numbers are since your dyno operator was using some sort of conversion factor to calculcate back to flywheel numbers (though that is generally not needed for measuring torque).
That said, those are not particularly impressive numbers at 9 PSI on the GReddy, especially if it is corrected.
06-21-2007, 04:19 PM
#90
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Once again, we are not sure how accurate these numbers are since your dyno operator was using some sort of conversion factor to calculcate back to flywheel numbers (though that is generally not needed for measuring torque).
That said, those are not particularly impressive numbers at 9 PSI on the GReddy, especially if it is corrected.
That said, those are not particularly impressive numbers at 9 PSI on the GReddy, especially if it is corrected.
With a stock car I have 19 KgM or 137.43 ft/lbs as you said.
Here https://www.rx8club.com/showthread.php?t=115447 I see the same number.
With greddy kit I have 30-32 or 217 - 231 ft/lbs with your conversion, once again the same numbers
I’m confused
06-21-2007, 04:51 PM
#92
Let’s compare my dynamometer with yours
With a stock car I have 19 KgM or 137.43 ft/lbs as you said.
Here https://www.rx8club.com/showthread.php?t=115447 I see the same number.
With greddy kit I have 30-32 or 217 - 231 ft/lbs with your conversion, once again the same numbers
I’m confused
With a stock car I have 19 KgM or 137.43 ft/lbs as you said.
Here https://www.rx8club.com/showthread.php?t=115447 I see the same number.
With greddy kit I have 30-32 or 217 - 231 ft/lbs with your conversion, once again the same numbers
I’m confused
06-21-2007, 05:28 PM
#93
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06-21-2007, 05:53 PM
#94
The video is awesome. A lot of fun to watch and nicely edited.
I'm just not sure what the interaction is between the porting and the boost. Porting doesn't typically increase torque as much as it does power, which seems to be the opposite of what your graph shows.
I'm just not sure what the interaction is between the porting and the boost. Porting doesn't typically increase torque as much as it does power, which seems to be the opposite of what your graph shows.
06-21-2007, 05:56 PM
#95
You can see him reach down and shift when needed. You are just mistaking his throttle application and lift because of the BOV.
If you listen, you can hear that the motor is still at the same RPM when he gets back on it during those moments when you hear the BOV while both hands are on the wheel.
06-21-2007, 10:00 PM
#97
06-21-2007, 10:17 PM
#98
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I like you car. Now you gotta bust out this move! http://www.youtube.com/watch?v=R1_VM0j6d5k
06-22-2007, 08:05 AM
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