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View Full Version : 2009 G8 GT Drivetrain loss %??


select20
05-28-2009, 08:37 AM
I'm just curious. This is the first RD car i've owned in a long time. I know my friends RX8 which was rated at 238 hp, dyno'ed at 171whp at one place and 176whp at another. I was surprised that that much power was lost going to the wheels.

For the G8 GT what is drivetrain loss %?
GRRRR8
05-28-2009, 08:40 AM
15-18%
select20
05-28-2009, 09:17 AM
Sweet thank you.
steve b.
05-29-2009, 05:22 AM
i heard 15% for manual and 20% for auto
done12many2
05-29-2009, 05:25 AM
i heard 15% for manual and 20% for auto

Sounds right.
done12many2
05-29-2009, 05:27 AM
I'm just curious. This is the first RD car i've owned in a long time. I know my friends RX8 which was rated at 238 hp, dyno'ed at 171whp at one place and 176whp at another. I was surprised that that much power was lost going to the wheels.

For the G8 GT what is drivetrain loss %?

This was actually quite an uproar in the RX8 community. It was highly believed and obviously proven that Mazda was telling a little tale when it came to the HP rating of the RX8.
GRRRR8
05-29-2009, 05:57 AM
15% = 306.85
18% = 296.02

Based on the factory rating of 361 hp.
r33pwrd
05-29-2009, 06:15 AM
Stock (assuming I was truly 361 hp) I saw about 18.5% loss. So with little bolt on mods im close to 415 at the crank !
Featherburner
05-29-2009, 07:40 AM
Mine was 17% stock.
Blackdevil77
05-29-2009, 08:27 AM
mine dynoed at 291 stock on a mustang. That either means my car wasn't really 361 crank, the % loss was greater on my car, or the dyno wasn't being very generous :p
r33pwrd
05-29-2009, 08:56 AM
mine dynoed at 291 stock on a mustang. That either means my car wasn't really 361 crank, the % loss was greater on my car, or the dyno wasn't being very generous :p

like 25% loss... actually I just redid my math and im about the same stock...