Anyone have experience with the billetflow 3.4 pulley? Horsepower gains? Does it actually not require a tune? Any info is appreciated.
Anyone have experience with the billetflow 3.4 pulley? Horsepower gains? Does it actually not require a tune? Any info is appreciated.
If your talking a eaton car ,the factory pulley is somewhere around 3.65 .So a 3.4 wouldnt do too much for you in the h.p. department. When ever you change pulleys you need to make adjustments to a/f ratio. Im thinking you would only see a gain of 20 h.p. With out putting her on the dyno youll never know. Go 2.76 or 2.8 for the best results. Also dont forget the snub idler for increased belt wrap.