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Old 06-05-2018, 02:45 AM   #29
Spuds
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Quote:
Originally Posted by 86TOYO2k17 View Post
Yes the Fluidampr is 5.8lbs but supposedly only 3.8lbs rotational (idk how that works) I saw a dyno comparing vs stock and light weight, and it actually lost about 1-2tq downlow and gained 1-2 top end.
Either way it seems to “protect” the engine from harmonics better then stock which seems beneficial if you are modded. Stock I think is 5.1lbs?

The DSS driveshaft is 2.75” diameter 12.1lbs, havnt found stock driveshaft specs from looking at it today (forgot to measure it...) it looks 2.75” for 2/3rds then the joint then 3” for 1/3rd of the driveshaft and 24.2lbs?

Assuming a 200 crank hp 170 whp 15% drivetrain loss. What % if any of that is the driveshaft and does lightening it reduce the loss?
The fluidampr has an inner ring suspended in a silicon fluid. It's a fluid damper rather than a semisolid damper. My guess is they don't count that inner disk as rotating weight as a marketing thing, even though the viscous forces would likely cause it to rotate anyway. I haven't looked at it too closely.

Not going to try and guess gains, especially since it's 1:45 am here and waaaaay past my bedtime lol. I'll get you real math-like numbers later.
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