Albert has 272's which reduce his spool probably by 400rpm, hes not running e85, he is on a base tune and isnt using timing to help with spool, and his cams arent degreed properly and has a t70 turbo. So that has lots of variable that you will not have.
Im throwing up my graphs on here to show you what the curves look like.
With your higher compression and e85 you should be at the equivalent spooling of a 2j because e85 itself will give a bump of 500rpm.
I hit full boost of 20 psi on both graphs. The first one shows the boost at around 4200 rpm and this is with a undivided hot side. The .84 will give better results and add the qsv onto that i dont see why you couldnt hit it lower appoximately around 3600-3800 rpm conservatively. And having that much power that soon will blow your tires off too. Justin up here had a T61 with a .68 hotside and would hit 20 psi by 3800 rpm and shred his tires. With your 1j I'm assuming you will rev to 8.5k rpm...if you do and you dont hit full boost by 4000 you will still have 5000rpm of boost that and that will be more that you had with your 7m ct setup
There are lots of options to help spool its just that you have to look at the over all powerband and where you want the power band to shine. If you want to rev and have power all the way to redline then you might have to sacrifice a little lag but if you want a real big powerband in the middle then you can go smaller housings and cut off your top end. Personally i love the power to the end. Its like going from a ct26 where it falls of to you 57 trim that gave you breathing room up top. Just imagine that but better with the addition of a bigger hotside and cams.
Heres the page for housings
http://www.atpturbo.com/mm5/merchant.mvc?Screen=PROD&Store_Code=tp&Product_Code=ATP-HSG-016&Category_Code=GTH
whats the $600 part your talking about
