Yea I decided against doing the downpipe and retune for the stock turbo setup. Found that even if I do make some power, which I probably would, I'd rather put to towards making more power in the long term, which is where the previously stated single turbo setup comes in. Not to mention I'd have to get rid of all of that custom downpipe work when I go single turbo and it'll be much more simple.You sir, will be awesome if you pull this off:
But I am curious how your build will differ from captain bondo's.
AFAIK, his car is running a stock T6 aside from H beam rods.
You might want to consider an HY35 for the smaller compressor housing. It's physically smaller, and might be better suited to your powerband goals. Also have heard a divided manifold would help the spool time as well. On a different car over on turbobricks I saw one gentleman picked up power all over, and decreased spool time just by switching to a divided manifold.
Available room might kill that idea though. Thinking about it, it'd probably work just fine. Roll the three cylinders that are already on each bank into each scroll of the turbo. Granted you used the internal wastegate.
I'm curious how that whole project will go. Namely shoehorning the thing in there.
I'd think it'd be easier to get the thing bolted up outside of the car, then put the subframe back in/drop it in the top.
I have the money to do the transmission rebuild saved up and put aside, just a matter of finding some time to get it all done is all. This car is my daily driver and I'm a full time student so maybe by the time summer comes around I can do that.
As for turbo choice, the HX35 12CMs that I've seen have a divided housings. A divided 12cm spools like an undivided 9cm I've been told. That's why I said I was thinking about getting a quick spool valve, they only work in divided housings
Still I think I'll start off with an HE351CW which is undivided to cut down (comes with internal wastegate) on the price and see how the the car as a whole goes single turbo. As you said fitment being one thing I'll need to resolve, but I think I have enough room there for this sized turbo. Maybe after a while of just making sure everything is fine, I can complicate it by changing out for an HX35 12CM (divided housing), external wastegate, with a quick spool valve to drop the spool time and refine the car a bit more. But I want to reduce as many variables as I can with my first steps of this project and just tests the constants.
Captain bondo's first build had stock rods and did 390WHP, then he got the H beams and did like 540WHP. Not to mention his car is RWD, greater drivetrain powerloss. If I can get 390WHP out my car with a similar setup I'd be perfectly happy, but as I said 380WHP is the goal even if I find it can potentially do more. For the sake of modesty and reliability.