It's all lobbocks!Not saying for a CTR, saying in general terms for any car
Weight reduction is how we are able to increase Horsepower! Each pound of weight removed from the crankshaft is worth approximately 2.7HP and the gains jump even more dramatically with forced induction, nitrous and variable valve timing. Only 15-20% of the gains from our pulleys come from underdriving. The diameter of each of our crank pulleys is reduced up to 20%. We tailor the exact amount of underdrive to each vehicle to maintain factory specified accessory output and performance. We fully maintain all accessory output minimums like air conditioning efficiency, power steering feel, and voltage (minimum allowable voltage 12v) even at idle with everything electrical on in the car. There are no adverse effects from using any of our pulley versions.
Roughly 40 pages of customer reviews from people who have actually owned and used NST Pulley Kits over the past few years...Has anybody thought about changing there drive pully for a lighter one as i have read they make a big difference up to 20% power and torque
Please consider taking a few minutes to read through the 40 pages of customer reviews from people who have been using NST pulleys on the R18 and K20 over the past several years.... You will find no cases of engine failure as a result of NST pulleys...This statement maybe wrong but is from my 15 year experience in the motor trade (5 year as a honda tech) i believe crank pully weight works in
conjunction with the balance of the crank its self and upsetting this balance could result in an unbalanced crank at high rpm which as we all know vtec's like to rev .So in my opinion this mod would cause more damage than good.