Planned Build - Suggestions

[spittinfire]

Hello, I'm new here and working on an 88 Turbo Coupe I picked up last year.  I've got a parts car that I'm going to use for my engine build and then swap engines so I'm looking for a little direction or to make sure I'm not missing anything.  I'm not new to engine building but this is my first turbo 2.3.  This car is my daily driver, I plan to keep it my daily driver so I'll be running pump gas.  I would love to incorporate an 87 tune and 93 tune and use the factory fuel switch to toggle between.  If I could make 400hp I think I would be happy....for a little while.    
Here's what I have planned. 

Stock Rods/pistons - Fresh rings and bearings for the bottom end 
Head - Install big valves, port/polish  
Cam - Boport 2.1 or 2.5, I'm leaning towards 2.5
Intakes - gutted upper, ported lower
Pimpx ECU
FMIC
Stinger dual exhaust using the 5 bolt flange
Turbonetics T3/T4 stage 3 .63
Walbro 255 pump


Not engine but related, I'll probably end up using a Spec 3+ clutch and keep the 4 cylinder T5.  I like T5s and I'm really not looking to do the V8 clutch change.  It's only a street car on street tires so I think it will live for a while.  

Am I missing anything?  Anything you would change?  Parts that won't play well together?  

[Stinger]

No mention of larger injectors or an adjustable cam gear. Both are required. Our timing pointer would be a good idea as well to ensure timing is perfect (and the best time to install it is while the head is off as it's easier to find TDC when you can measure it at the piston).

What compressor wheel trim on the T3/T4?

It's difficult to get on board with the idea of running 87 octane considering 91 octane is less than ideal but I understand the desire to save money on fuel for a daily if you drive a lot of miles.

[spittinfire]

I would love to run 93 all the time but if I have the option to run 87 and dial the boost back/change timing with the flip of a switch I'll do it. This is just something for me to have fun with and take my kids places in. It's only a street car so I don't want to have to go out of my way to find fuel.

I'm was thinking 80# on the injectors and adding the adjustable timing gear. The turbo is a 50 trim.

[Stinger]

Sounds like a plan. Make sure you get our boost control solenoid for the high/low boost ability.

[spittinfire]

Do you think 400hp is a reasonable expectation on 93?

[Stinger]

Depends on who's doing the head porting. You're always boost limited by octane so you can't just crank up the boost until you get there. That means head flow is important.

[spittinfire]

I was planning to port it myself and flow bench it until I got the flow I needed. Which raises the question, what kind of flow numbers do you need to make that kind of power?

[Stinger]

Stock is around 155cfm on the intake side. Most home jobs end up in the 175-200cfm range. Boport gets about 235-240cfm out of his. The intake is the other factor as the total flow through the head and intake is more important. A head that flows 200cfm with an intake that flows 180cfm isn't any good.

There is no certain number you have to reach to get there as there are too many variables to lock it down. The more flow the better, preferably 200+.

[spittinfire]

I was going to send my upper and lower intake to you but since I'm able to rebuild the head and install the big valves myself I was just going to port myself as well.