Yer i noticed that when i was reading the gergory's manual that the settings for my head bolts were in NM (newton metres) and my tourqe gauge was in LB which is pounds yer??

correct, if u look at the table at the back of your gregorys you'll find any conversions needed, but here's what you're after: 1 lb-ft = 1.35582 Nm (to be exact) 1 Nm = .737562 lb-ft (to be exact again) enjoy! Some original photos have not been recovered yet.

Thankz for that im just gunna buy a RB30E black strip it right down send it away to get cleaned and honed and bored and get a set of forgies installed which i have already bought and get the rods shot peaned and the standard crank put in new bearings and ACL seals. how much would this cost and then get the engine back so i can install the head and all the rest myself. i was going to do the whole lot by myself but im having 1nd thoughts with all the hype about different thou's in pistons and so on. wat do u guys think??

If you've already bought forgies, they will all be the same size, hopefully slightly oversize. The pistons/bores from the factory were sized in 5 grades according to varying manufacturing tolerences, which i'm guessing weren't quite as consistant as current aftermarket performance pistons. (Considering these engines were manufactured up to 18 years ago). Get your cylinders bored to suit the new slugs and you can then re-assemble it yourself. Best to take everything to a machine shop and get them to check it out. Just let them know you will assemble it. Cost me about $1K to get my RB30 cleaned up, inspected, honed, new bearings, rings, seals, crank balanced and installed with grub screws in the oil galleries. This also included mods to the RB25 head to match up water jackets.

Quote: Originally Posted by darkstar coastvl, there are two keyways on the front crank snout. One for the timing gear and one for the harmonic balancer. Buy the half moon keys from Nissan when your redoing it. What forgies do you guys recommend? SPS, Arias, Ross ? Cheers for that. Exactly what I needed to know. I'd go Arias or Ross. They have a good reputation and a mate had Ross pistons and they worked well.

if your gonna get a book corky bells maximum boost is a good one

ok so wat u guys are saying is that lower compression isnt bad but it makes the turbocharger work harder to produce more boost to make it equal. my VLCT makes full boost b4 2000rpm i noticed this last night but i was in 2nd when i did it. i raced a maserati yesterday and i noticed also my boost comes on pretty quick now i also thought this might be because im running the RB20DET turbo but really i am not sure wat turbo i am running at all. duz any1 have pics of teh VLT turbo and of a RB20DET turbo sizes would be good aswell. send to [email removed] thankz guyz

Ok i was told that the NA pistons have a dish in the crown is this right?? if it is right then my pistons are not NA pistons mine have like a Rough Crown not smooth i thought they might have been stuffed so i checked the whole lot and there all the same i noticed 2 piston i think numba 2 and 4 where black more then the other 4 is that a problem.

turbo ones have a dish, na ones are raised

ok well i dont think i have a dish in my 1's at all i will check again 2 be %100 but when i looked it didnt look anything like a dish is it very noticeable from looking down the bore?? do you think maybe i got forged pistons?

If it helps, thats a NA piston down that hole Some original photos have not been recovered yet.

Mine dont look like that thats 4 sure im sure mine is like flat on top no indents at all im sure i guess u cant really get a good look thru a spark plug hole but im sure im look str8 flat.

a turbo piston will still have the recess for the valves in it,as ive marked in red. but itwont have the raised section,as ive marked in blue.it will dish down by about 5 to 10 mm

i dont see anything like this in my pistons like that??? when i check it again ill let u boys know ok.

Just got an email form GCG turbochargers enquirying about hi flowing my T3 it will cost me $1950 to get hi flowed and steel wheel converted 20% power increase comfortably run 14-15 psi safley this seem like a full waste of money.

You can buy a brand new roller for about $100 more than that! Although you would have to buy an external gate and plumb it into your manifold....

yer i was thinking that bloody exspensive well a wastegate brand new is what about $700 and i heard theres a steel box you cant get welded to the manifold to fit the wastegate insted of having to get a whole new manifold.

Got Some pics of my turbo to see if someone can identify it and help me out so i know 4sure wat i have on my RB30. noticed the pipe which i think is a water return pipe and dont ask me why there is alfoil on that oil pipe i have no idea lol. Some original photos have not been recovered yet.

it looks like a factory nissan ball bearing turbo. unsure which one though

actuator is larger than norm and it looks almost like an t25 or 28, but not sure