Oil Squirters

[GTRPSI]

Stock oil feed size on a RB30....

10-15 Minutes later they were all 8mm.....

Below you can sort of get an idea of whats not exactly right with the factory RB26 oil feed grooves for the bearing feeds from under, the pic is of a stock RB26 block oil groove channel, the oil feed hole is on the right, the deepest part of the channel is in the center, when feeding bearings the channel should be deepest at the oil feed hole, gradually thinning to the outer holes, point being as each bearing hole robs some oil, the furtherest ones need a shallower groove/slot to supply a even flow of oil across all points.

Also my RB30 grooves are about 3 times the depth at the deepest point compared to the RB26 deepest point, bearing holes were also modded to take advantage of the extra oil flow.

Edited January 24, 2015 by GTRPSI

[Wyn]

Cheers Pete, thanks for sharing the info and adding those pics. That's great to know and makes it look simple to boot !

[chairman]

I would go RD 28 block has oil squirters fitted,

12mm main studs - line bore hone after

cryogenics good stuff I got it done block and girdle

nice build