Artizan Posted January 9, 2021 Share Posted January 9, 2021 I don't care about power gains. Only thing I care about is installing what's healthiest for the engine. All the talk about aftermarket pulleys not balancing harmonics is freaking me out. Are there any lightweight pulleys that DO balance harmonics, or is OEM the only way to go for this? Link to comment Share on other sites More sharing options...
Infosecdad Posted January 9, 2021 Share Posted January 9, 2021 OEM or Fluidamper would be my recommendation. I've got a Fluidamper, love it. Link to comment Share on other sites More sharing options...
ttnio Posted January 10, 2021 Share Posted January 10, 2021 i like the freedom of choice. oe in my opinion. Link to comment Share on other sites More sharing options...
DadBod Posted January 10, 2021 Share Posted January 10, 2021 I had both a Perrin LW and Fluidampr available when I was putting my engine back together. Went with the Fluidampr based on SO MANY recommendations from here. I would also advise on getting a Fluidampr. Pricey, but worth it. FWIW My LGT has a stock block w/a Blouch 380XT, ELH, ID 1050Xs, catted DP, 3" cat-back to Wangan cans, Cobb intake, Perrin inlet, IAG TGV deletes, IAG phenolic spacers, Cobb EBCS, Grimmspeed TMIC, and a protune by IAG. I'd say that my LGT w/Fluidampr and mods runs smoother than my stock 08 OBXT w/OEM pulley. Link to comment Share on other sites More sharing options...
Underdog Posted January 10, 2021 Share Posted January 10, 2021 I vote Fluidampr or OEM if for no other reason than the flywheel effect. I did not enjoy the feeling of taking off or shifting with the lightweight pulley. YMMV Whether the Fluidampr is able to absorb torsional harmonics better than OEM? I understand the theory but afaik there’s no objective data to point to. The Crimson Dynamo Link to comment Share on other sites More sharing options...
bdcvg Posted January 10, 2021 Share Posted January 10, 2021 Healthiest for OEM is OEM. Healthiest for hi-po is fliud damper on a balanced assembly. That being said I ran a Perrin LW for 175k on My 2.5rs. It completely eliminated the non-turbo flat spot at 2500 rpm. It made the engine less buzzy and produced about 2 mpg. Link to comment Share on other sites More sharing options...
DaveWaters Posted January 10, 2021 Share Posted January 10, 2021 I had a phantom low flkc while running lwcp. I switched to fluidampr and no longer get any flkc. Been a little over a year now. My tuner was amazed. (Note: 5eat). Link to comment Share on other sites More sharing options...
Scoobyslack Posted January 16, 2021 Share Posted January 16, 2021 I ran a lightweight on an EJ22T and EJ257 for years with no issues, but it was mainly used for autoX, not daily driving. Link to comment Share on other sites More sharing options...
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