I had no idea actually. I looked at pre-forms, didnt like the thickness, thought about coning it but same problem. Then I read that thread and thought "im doing that" lol
Its 6 and 2x3 really isnt it. I have no doubt yours will be awesome, if you can get the metal bent properly!
I've seen good one made of flat section (one in the Street Turbocharging book). Stainless can be a bitch, but the famous heat spanner always works. Heat and a mild steel mandrel (access to a lathe?) would be a good way to go.
Quietly following this, just thought I'd say doing some cracking stuff here and turbo cinqs have really come along since my day heh
Had you thought of a T2 flanged turbo at all? Seems a lot of work going on and with a 3 stud turbo fitment you'll have your options narrowed down if you wanted to progress it in the future, although dare say a T15 with some sort of hybrid internals would be pretty fun
LED boost gauge around the speedo is a bit marmite but loving the amount of fresh thought going on
6 and 2x3 - they are equal, the end result is the same, they are two ways of acheiving the same outcome... etc etc. You've never heard that expression before?
I did look at Jasons stuff when I was messing with turbos but put off by the lag he was getting. but i think the 16valve (plus the help of a proper manifold) will flow enough to be a good setup.
its going to be a saab 9/5 turbo (GT1752 got cheap with blowen oil seal) with the compressor housing from volvo GT2052 which has better fitment (no v band filter connection) and the air cooled core from the astra turbo
only thing ive got to figure out is the turbo exit... it has a taper seat with 3bolts.
looked at getting one from a saab but its welded to the cat so might be expensive (but then thought... my car could do with a cat and one from a 2+liter car should flow more then enough... kill two birds with one stone!)
ok... thinking of getting alloy from the scrap piston used as a filler and tiged into the under side of the piston to rebuild the thickness lost by machining.
I've been reading and people have some similar on the crowns of pistons to raise compression/build a better combustion chamber without any problems! and most of them just used high silicone content alloy.