RB26SX

Has anyone tried to use the replacement billet gear sets for N1 pump ? Made by JPC Performance in AU. http://www.jpc.com.au/products_rb30.php Could that be a sollution to the problem ?

Pic of big top secret style wing.

Make sure to fit oil restrictors if you use RB26 / 25 pump. I used RB25DET pump in my RB30DET with no oil restrictors in the block, now I have problems with oil coming out the breathers at constant high rpm(6000-7000rpm). Busy fitting second oil drain on rear of head to help with oil return.

You would need to run a external oil feed to the head for vct, as the RB26 / RB30 block do not have the oil feed in the block to supply the vct.

T61 with .63 exhaust housing. 260kw, 427nm @ 0.9 bar, boost from 3500 rpm. Fit on std manifold with spacer.

I have the same problem with my RB30DET, seems the best cure is to fit a oil return on the back of the head, down to the sump.

I spoke to a guy that said he has used RB26 cams in RB25 head with no mods, drop straight in. Just wanted to confirm if someone else has done it. I got a set of std RB26 cams free from a friend. Since I dont use vvt in any case, that would not be a problem. Cant see why there has to be any head or valve work done if the replacement cam has the same duration with about 0.8mm more lift.

I was hoping to just swop cams without doing valve work or taking the head off. Not using vvt. Wont the hydr lifters compensate for the extra lift ?

Can someone please help. I have a RB30DET with RB25 head. Would like to know if RB26 cams can be fitted into a RB25 head. I know the lifters are differant (solid vs hydr) but the RB26 cams offer a bit more lift. Has anyone done it ? Straight fit, or modifications, and would it give a worthwhile performance gain ? Thanx.