Hi all searched here and on Google and skylines Australia with no 100% answer. I have bought what I thought was an rb30 turbo oil pump off eBay unseen but after getting it and opening it up its actually an rb25 turbo pump, so first question can I use that on my rb30 (done worry about crank collar issues) or will the oil pressure be wrong for the motor? Secondly if it's no good anyone got one for sale??