Ok so I did a little research.
The Fluidampr for the Slingshot is #650101(no power steering pulley) However you can get the #650111 which comes with the Power steering pulley. I was told by Fluidampr you can remove that pulley.
I have found that most places are out of stock or are asking more money (have not verified if they have it in stock) I was told the last run for making these was 8 years ago because there has not been a demand. Typically an order of 50 or more they will do a run. It is possible they will do say 25 but it would have to be run by everyone to see if it is worth them making it. I have a contact and can email him if someone is interested.
So ATI is an option and does things a little different and is the next best alternative to stock. (ATI info below)
ENGINE
|
DAMPER PART #
|
OUTER DIAMETER
|
WEIGHT
|
SHELL MATERIAL
|
RIBS
|
HUB # [1]
|
HUB MATERIAL
|
4 CYL ECOTEC
|
917287
|
6.78" (5% OD)
|
6.75 lbs
|
ALUMINUM
|
8
|
916752
|
STEEL
|
917288 [2]
|
5.5" OD (12% UD)
|
4.50 lbs
|
ALUMINUM
|
8
|
916753
|
STEEL
|
[1] All hubs have 3/16 key @ std SB 10° location. 8 groove shell for supercharged upgrades, OEM 6 groove location.
[2] Damper is 12% UD from stock; not for over 600 HP on the street.
[3] Damper is 5% OD from stock
Under drive is recommended for turbo applications. It will help avoid over spinning your alternator and its better than stock dampening will allow for high rpm engine reliability.
Over drive is recommended for supercharged applications. It will increase blower speed the same as dropping 1 pulley size so it's recommended to run a larger pulley on the blower than we normally recommend. However due to the larger diameter of the pulley you will either want to grind a little extra clearance for the belt or you can run our Machined front cover .
Note: Since the size of the balancer is changed you will need a longer belt for the overdrive pulley and a shorter belt for the underdrive pulley. An LNF with the under drive balancer will need a K050390 belt.