Sorry for this newbish question, but I'm new to the turbo world as a matter of fact i'm new to moding cars other than N/A civics
Anyways the question was

What mods have to be done before turbocharging an xB?
besides I/H/E.(intake/header/exhaust)

 

Skip the header because you will get a new manifold for the turbo, what I would do is get a larger radiator and better hoses (silicone) to keep the engine cool. Also I would get a stronger clutch, as an option if you have having a new clutch put in go for a lightened flywheel. The radiator is #1 though, turbos generate more heat so If you want to have an engine in 5,000 miles I would do that first.

 

I wouldnt worry about the radiator, I've had my car in time attack practice sessions for a half hour strait of either full acceleration or hard braking....no overheating issues. The clutch is a must though, the stock clutch can't handle much more than a 10hp gain lol. A lightweight flywheel is a give and take upgrade...as I have found out. It hurts you in straitline acceleration because the car losses its "pull" when shifting gears (in other words, no more chirping tires when upshifting). But it does pull harder in gear, it adds horsepower to the ground, in gear. For roadracing it is good and for auto-x.

 

i knew i didnt need a header i just put that there to test you and about the radiator I'll look into it If your gonna do something do it right the first time and believe me i want my engine after 5k miles lol



but i was really wondering if i had to do any mods to the inside of the engine like cams or pistons, valves etc.

or can you just put the turbo on an almost stock xB?

 

Ok, our engines will handle 7psi safely. Ive heard of 2 or 3 people on scionlife running up to 12psi on a stock block. I DO NOT recommend this, I've personally seen our block blow up at 10psi. I just bought myself a turbo toyota's kit and my engine internals are completely stock. All you need are:

1.) Clutch
2.) Injectors (Celica or tC)
3.) Turbo Kit (or a custom made kit)
4.) ECU (to control ignition and fuel, usually the emanage does the job)

Right now im in the middle or working out my turbo install. Im just waiting on the manifold and downpipe, everything else is in my house. If you have any other questions let me know, i was also a noob at the whole turbo thing until 4 months back, and as of today i still learn new things. Here are a few picture of the turbo parts:

 

Thanks JSosa you helped out alot now all i have to do is get an xB lol

i should have one by december or mid january gotta save up some cash

 

im one of those "few people" who have run 12-13psi stock block ;)
...but i also dont recomend it, im just stupid.

Anyways, if your running any bolt-on kit (hks, greddy) then you really dont need to worry to much if your not turning up the boost.

When i first installed the system, running at about 5psi, untuned (u dont REALLY need management until about 7psi on our MAF cars, but def. recomended for saftey and expandability), i didnt do anything else and the car was running fine. A little quicker, and the occasional clutch slip under spikes of 7-8psi, but ran fine.

As for the clutch, you def. will wanna upgrade it if your running over 5lbs, but if not dont worry to much. I ran my setup for 2 months (about 9k miles) on the stock clutch, and that was going to the track just about evry other sat. I just lit the car cool down for about 45mins to an hour in-between runs. When i pulled the stock clutch out to install the Spec 2+, the stocker still had a lot of life, but youn could see the scratches from slipping (at 9lbs when the car was practically undriveable on the stocker).

For the radiator...I had a koyo from pretty much the second week i had the car, so i cant really comment on before and after on a turbosetup, but i can def. imagine it would help in any case. I saw roughly a 25deg drop over stock when i was n/a, but if you cant afford one right away, like Justin already said (blown xa) he has been running the stocker fine.

Injectors are def. debateable.
If you are running more than 6-7lbs, GET SOME.
If not, dont worry, the stockers will be efficent.

Best of luck.
I run 8-9psi daily, check out my setup:
https://www.scionlife.com/forums/vie...asc&highlight=