Mazda RX-8 Training Videos
06-21-2008, 04:25 PM
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Mazda RX-8 Training Videos
Look at these videos and learn about the RX-8!! What do you think of it??
http://www.youtube.com/watch?v=bOmpS...aynext_from=PL
http://www.youtube.com/watch?v=bOmpS...aynext_from=PL
06-21-2008, 05:44 PM
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06-21-2008, 08:38 PM
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Yes, these videos were made before Mazda admitted to overrating the hp on the Renesis, also prior to the newer SAE rating standard. What I never understood is why the 6-port, high power engine (159 ft-lbs at 5,500 rpms) actually has slightly less torque than the lower power, 4-port AT engine (164 ft-lbs at 5,000 rpms).
06-21-2008, 09:12 PM
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Yes, these videos were made before Mazda admitted to overrating the hp on the Renesis, also prior to the newer SAE rating standard. What I never understood is why the 6-port, high power engine (159 ft-lbs at 5,500 rpms) actually has slightly less torque than the lower power, 4-port AT engine (164 ft-lbs at 5,000 rpms).
longer intake manifold runner length = more torque.
The 4 port uses the outside runners which are longer.
the 6 port uses the shorter length runners (inside/middle) and then opens up the outside ports at 6250 rpm i believe.
i may not be 100% bang on with what runners they're using, but i'm pretty sure it's along those lines.
06-22-2008, 12:10 PM
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yeah, thanks. cool video.
i was surprised to hear about the a/c cut-off at 65% throttle or more. is that accurate?? coming from from a honda, i've gotten used to tapping off the a/c when i knew i was about to floor it, but nice to know i don't have to!!!
i was surprised to hear about the a/c cut-off at 65% throttle or more. is that accurate?? coming from from a honda, i've gotten used to tapping off the a/c when i knew i was about to floor it, but nice to know i don't have to!!!
06-22-2008, 01:02 PM
#17
Did anyone notice that it had 40th Ann. RX-8 Engine Cover?
From the looks of it this video is quite old, when it used to claim 247 hp @ 8500 RPM before it was revised to 238 HP.
From the looks of it this video is quite old, when it used to claim 247 hp @ 8500 RPM before it was revised to 238 HP.
06-22-2008, 01:34 PM
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