Guys i need a sketch atleast for my 2uzfe turbo project.. im building a street car and confused btw twin turbo or single.. really i need advice of pros... i need a good way of making the turbo pipes so whats my options ?
Do you have a budget?
From your questions I am guessing that this is your first time involved in this kind of project.
Is the 2UZFE in a truck or have you done a swap to another vehicle and if so what?
Will you be using this primarily as a street vehicle driven in traffic or are you only concerned about peak power output over a small RPM range?
BEST is a variable depending on application.
If yours is a truck one of the easiest would be the STS remote mount single turbos. Response is slower but still very usable.
A custom engineered system is just that CUSTOM. You better be ready to do your homework AND find a capable builder.
A turbosystem routes the exhaust gas from the ports to the turbo(s) and then to a suitable exhaust system. It also draws air through a filtration system to the turbo, to a charge cooler and/or water/methanol injection syste before delivering the boost to the throttle body. It also has high pressure oil from the engines oiling system (usually) to the turbo bearing housing and then a means of draining or pumping the low pressure oil from the turbo oil discharge back to the engine. Most modern turbos also have a water cooled bearing section so you need to route coolant to and from the engine and turbo and back again. These are your BASIC turbo PATH needs.
You will then need a means to supply additional fuel in the correct amounts at the correct times. Larger injectors, extra injectors, rising rate fuel pressure regulator(s) injector drivers, injector controllers, modifications to the stock ECU and stand alone ECU's are all considerations.
Controlling the engine timing is also needed and becomes more and more critical as power levels go up. Some are able to modify the stock ECU to achieve this. Others go with a piggyback to the stock ECU. Others go with a complete stand alone fuel and timing ECU that can be programmed accordingly. All options have plusses and minuses.
If anything above is confusing or is new to you I highly recommend studying as much as possible. Clearly state your goals for your own good.
Turbocharging is one of the most rewarding car crafting experiences but like any there will be unforseen expenses and frustrations. You can reduce both by learning as much as possible and finding quality help (not so easy).