Post by
j-z »
https://forums.nicoclub.com/j-z-u11653.html
Fri Jul 27, 2007 5:26 am
if you want more horsepower than torque go with the .63 a/r... if you want more low end torque go with the smaller .48 a/r housing. i had a .63 a/r on my built ka-t and i hardly ever saw lag and thats with stock bore, granted it was a stage 1 exhaust wheel... from experiences with my civic i had a 63. a/r on there with stage 3 wheel and went to a .48 a/r with stage one wheel that was clipped, and all the power just went away. i lost 50 whp after i dynoed it, but i also added on a different exhaust and intake manifold, and put a full 3'' exhaust as opposed to having just open downpipe with the .63 setup. lets just say this, id rather have the lag and more power that the .63 a/r provides. exhaust wheels play a big factor too.. it couldve been a number of those things that contributed to me losing power but the biggest factor was the exhaust housing and wheel change. go with the .63 imho.