Are you joking? We have like ten of these threads on the old forum...
I think it is very important to point out that there is no difference in the basic mechanics behind the process of maiking power, just that with boost there are a few factors that are a bit higher then usual.
![Smile :)](./images/smilies/icon_smile.gif)
So, the same stuff applies. forged rods/pistons is a good thing but may not be needed. Plumping is very much depending on the power output.
Keep all the "active" piping short and compact though, manifolds are really important to keep small, i.e. small exposed cooling area. Diameter can be kept smaller then similar N/A, you will have backpressure anyway so you might as well keep the gas speed up. equal length primaries are important and also a good collector.
size of turbo is very much depending what you are going to use the engine for, I use a small OEM turbo because I want the response and am ready to sacrifice the top end, I drive a lot of tight roads. If you ONLY drive between 4k and 8k with lots of full throttle you might wanna chose some other (larger) turbo...
I've thought about alternative fuels lately, here we have something called E85, (85% Ethanole and 15% gas/petrol) , there are many benefits such as higher octane rating, around 104 RON, cooler burn and such.
You need about 40% more fuel though, this means your tank is virtually a lot smaller and you need bigger pumps and injectors.