Dampers...


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By JPotter57 - 17 Years Ago
Any ideas for a quality sfi damper for the Twin Turbo Y?  I saw where Ted is using a Brand X type damper...what kind of mods are necessary and will there be enough room for pulleys?  This is one area I hadn't thought of yet until today as I was browsing through some old posts here and saw a discussion on them...Shed some light, gentlemen...
By Glen Henderson - 17 Years Ago
ATI makes a Y Block damper, but you have to special order it. John runs a sbc on his F code. According to the info that I have read, it's .007 smaller and just needs a light hone to open it up to the Y Block crank diameter. The hub is shorter and you will have to machine a spacer to make up the difference. Should be a large assortment of pulleys for the scrubs that would work.
By pegleg - 17 Years Ago
Pat Fleischmann also runs a SBC damper, same reason, cheap! I think Hoosier dug up a water pump pulley to work and/ or moved it back on the water pump shaft. I know john made his crank pulley to run the blower because the original won't fit the Fluidamper. You won't have that issue with a hair drier and I'm guessing your wayer pump will be motored by and electric conversion you won't need much in the way of belts.
By Ted - 17 Years Ago

The ATI damper that’s specific for the Y ends up with an installed single groove pulley being spaced ~ ¼ inch further forward which mandates spacing the water pump and alternator (or generator if that is the case) a similar amount.  The pulley pattern is the GM three bolt pattern so there are plenty of pulleys, both OEM and aftermarket, available for that pattern.  For the drag cars that are not driving any accessories off of the damper, spacing for the pulleys will obviously not be a problem.  The ATI damper for the LT1 engines have a longer snout but I can’t say if the snout is long enough to clear the stock Y cover.  I’ve been using the LT1 damper with the marine cover which requires the damper snout to be shortened quite a bit to get the damper as close as possible to the engine.

 

I’m not a fan of the liquid filled dampers but there is one out there available for the T-Bird engines.  I can't say if that particular damper is SFI rated or not.  And the spacing of the pulleys on that damper is still a problem for the car and truck engines.