View Single Post
Old 03-03-2014, 06:55 AM   #44
OICU812
Just a dude
 
OICU812's Avatar
 
Join Date: Mar 2013
Drives: Scion FR-S 2013
Location: Edson, Alberta, Canada
Posts: 3,289
Thanks: 1,185
Thanked 1,188 Times in 852 Posts
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by Poodles View Post
Hence why inertia dynos have their issue One could also use lightweight wheels to get the same effect, or remove the rear rotors (I don't recommend it, but I remember this being tested somewhere).


As all power ratings are rated essentially on torque and horsepower is calculated from RPM, there's no "real" power gain.






Maybe so (and most everyone that makes them is going to say they're just fine as they're selling it), but it would be much cheaper for an OEM to NOT use a dampened pulley if there really wasn't an issue. This is much like the 1-piece driveshaft vs 2-piece driveshaft (read up on driveshaft critical speeds). It's not a NVH issue...


Regardless, it's a hell of a lot of money to spend on a part that's not making power or looking pretty...

Threads are there with quoted emails from Subaru themselves that the pulleys being dampened/non dampened makes no diff in regards to (worry). So not just from vendors as you state.

In regards to lighter driveshafts. I've done this and for "feel" one piece on this car is a lot nicer feeling, no clunkyness feel and yes a feel of being more peppy. Much more on a dyno? Don't know don't care either. I will get a one piece again soon and in cf.
__________________
OICU812 is offline   Reply With Quote