Hi all, just wondering when you think i will get full boost with the turbo's i have for a 383 chev, 8.5 comp, dart 215 alloy heads, solid roller around 240 duration, glide etc, turbo's x2 are 66mm compressor, 80mm turbine, ar .91 t6 divided , max boost is going to be around 15psi no cooler but meth injection Cheers.

Pretty late on such a large rear turbo at a guess without doing the numbers I'm going to say 4500ish.

Yeah was thinking about the same myself. Was planning on running around a 4200-4500 stall so it should be ok. Running a ice ignition with 2step so should be able to get it up on boost on the line. Not really going to be much of a streeter, just the occassional cruise. So all should be well

Yeah with cubes its not as important anyway.. you still have 6 and a bit litres pushing you along. Especially with a big converter it will just basically come up and fry them off. If the car is setup right you will probably net 1.60's out of the hole all engine. If you get 4 or 5 lbs on the two step it will be pretty insane. Having good boost control will be your friend.

Yeah mate, not overly concerned if it don't come on full boost till 4500, as you said getting it off the line will be the issue but will get it sorted in time just planning on having some fun and frying lots of tyres till i can get it all sorted. 2 x 50mm gates should control the boost hopefully but time will tell.