dare I ask, How much boost, kw

With the old crappy port job, std L20B cam and U67 head it used to make around 130rwkw at 14psi and 165 at 21psi on the old hi-flowed RB20 T3 turbo.
Ive now changed to using a smaller T28 ball bearing turbo as I want to get it boosting earlier on in the rev range...

Sounds like similar figures to mine. 127kw on 11psi. I'm not game to push it any higher though with a completely standard bottom end. I have a high flowed rb25 turbo, a ported u67 and a custom turbo grind cam.

All the best with the most recent build. should be a beast. The t25 probably makes sense. Whilst I like the top end power I'm seeing decent boost a tad late in the rev range.

It's a heap of fun to drive a boosted l series though.

I re torqued the head studs today using the method suggested.

I backed each stud off 1/4 of a turn, then retorqued to 62 ft pound.

After the first start I noticed a few beads of coolant between the block and the head on the spark plugh side (I can't really see the other side). I cleaned it up and drove for an hour, after which there was a small bead of coolant right along the mating surface between the block and the head. I cleaned it again and drove for another hour only to find the same thing.

Is my gasket stuffed? or does this just mean some coolant seeped out when I backed off the head studs and it may take a little while to clear?

I'm feeling pretty depressed about it. Anyone want to buy a 610sss?

Nm or ft/lb??

Did mine as per durapro spec. Was in three stages. Like 55, then 70ish and then 80ish newton metres. Make sure block threads are tapped and there is nothing binding the bolts from torquing up cleanly...

What an idiot. I torque it up to 62 nm rather than ftp (84 nm)

I guess I'll wait for it to cool and tighten it up and hope I have't killed the gasket.

I'll just add this to the list of stupid crap I've done.

That happened to me once doing it by guessing how tight (without a torque wrench). They need to be pretty damn tight...