Changing turbo.

[Hectorb25]

i want to change my turbo later on with a bigger more powerful one.. i am a noob at this so i want to ask for some help because i do know that when you change to a bigger turbo you will need bigger and better headers , besides that what are all the stuff needed to change along with the new turbo ? injectors? anything ?

 

[carnalforce]

There is a lot of information on this throughout the site... A LOT! In a nutshell, the size turbo you put in the car will depend on how much money you want to put into supporting mods, such as fuel upgrades, block rebuild....

 

[gusu]

A tuning solution, the 2g manifold is fine and turbo cars don't use headers, larger injectors based on what turbo you will be running and how much boost, a boost controller, a boost gauge, some logging device but some tuning solutions have these, a wideband to monitor your AFRs, upgraded fuel pump and possibly a fuel pressure regulator if your upgraded fuel pump flows enough, upgrading your sidemount or getting a front mount intercooler may be needed if your turbo flows enough.

Besides those basic things, even more basic things you should think of is a clutch. But there are things you might not even be thinking about like the fact that you may need a better head gasket to make a decent amount of power and to avoid head lift you are going to want to upgrade your headstuds to ARP headstuds.

If you are seriously considering doing this don't take it lightly. You might not even want to do a intake at this point because you may decide to go GM MAF, Speed Density, stay with your 2g MAF, or your turbo may require a different size inlet.

 

[LiquidX]

You have a lot to learn kid.
Tech Guide: 2G 4G63t Upgrades - DSMtuners

You need to have ALL maintenance completed including a full timing job if you do not know when it was last done (paper work required).

To do a larger turbo you need injectors, fuel pump, AFPR, tuning solution, wideband, and boost gauge at the minimum. Going with a larger turbo you will be blowing more CFM and it will be hotter air so you need a more efficient IC to pull the heat out.

With more power come the need for a better brake system so don't over look that. You'll also likely be having a slipping clutch so that will need to be changed out in the near future for a stronger one.

Read up and I can see you are the type of person to vent the diverter valve to the atmosphere for that "cool" sound. On the stock MAF based intake system it needs to be recirculated unless you feel like running rich in between shifts, and potential idle and driving issues.


Also, turbo vehicles don't have a header, we have a turbo manifold. NA vehicles have a header or headers if there is more than 1.