well i dont really remmember the full details of there kit. but I do remmembe they only reccommend about 7psi of boost. i think thats for two reasons, one being the motor, and two there turbo kit isnt really all there if you want to boost some high numbers.
the boost you are looking for requires a little more work...
forged pistons with lower compression and of course rings.
rods
headgasket (steal)
with the new pistons and rings you will need the block machined chances are with those miles you will need to have it bored atleast 10 over then also have the cylinders honed out so the rings can seat
while your in there i would put new bearings in it and new gaskets. bearings are only about 100-150 to replace them all and that gives you a fresh bottom end.
as far as head work with the steal headgasket you have to have the head shaved flat. while its being done i would look into some porting work just to give some more air flow
I dont remmember what there kit includes, but here are somethings that i dont think it includes that will be nessassary for higher boost.
bigger injectors minumal of 440cc
piggy back system to control fuel and ignition
intercooler
CLUTCH!!!
there kit has a big price tag. i would try to make my own kit, if you accure a ct-26 turbo and a alltrac exhaust manifold that takes car of your turbo you can probrolly find them for under 400 then just work towards the rest of the stuff. intake pipes can be made at a exhaust shop but have the intercooler in there before that. you could always build your own turbo kit and run low boost intill you come up with the funds to rebuild the engine. if you fix the timing and fuel it can be safe at lower boost levels.

 

thanks man!
I just talked to Burien Toyota. He said the highest psi that could be handled with that turbo is 13 psi. But he was also talking about that was all that the stock fuel system would handle, (fuel pump, rails, etc.)with the new 360cc injectors that come with the kit. Does anyone know what size the stock injectors are? Anyway. With 13 psi he said i would need to rebuild motor with
-ARP head studs
-metal head gasket
-forged pistons (stock rods should be fine as long as there not
already damaged.)
-TRD low temp thermostat
-head ported and polished
-and all the other basics with rebuilding a motor.
He said he didn't think that i needed to lower the compression, but if you get forged pistons, i think that the indentions on the top of the piston lower it anyway. I'm not for sure though?
So i'm looking at about 5gs' with rebuild and turbo.
Your probably right about me just building my own and saving some money, but i havent been messing with it long enough to know what the hell i'm doing, nor do i know anyone who could help me that lives anywhere close to me.
Also, The guy at Burien said he was in the process of making an intercooler, but it would be a few months before they would be ready to sell.

 

With ordering pistons, do you have to know beforehand how much the cylinders will need to be bored out? Cause if you bore out the cylinders doesn't the the pistons or the rings have to be bigger? I'm confused!

 

stock injectors on the 5sfe is 220cc
building you own kit wont be that difficult but im sure there are some things that you wont be able to do that you will have to pay to have done, (intercooler pipes, exhaust, maybe even install) but if you atleast bought all the parts im sure it would be cheaper then buying there kit again a 3sgte exhaust manifold would bolt onto your car and the ct26 turbo bolts to that so that would most likely be your easiest way to start. lower compression is needed for more boost. hence why turbo cars are lower compression. if you dont have lower compression you could pre detonate and ruin the engine. stock compression is 9.5:1 as opposed to new turbo cars dont run more then about 8.5:1 some even go as low as 7.8:1 good spot is 8.5:1 i took the 3sgte down to 8.3:1 but im running a larger turbo and plan to boost in excess of 20psi at times. 8.5:1 is stock 3sgte compression. as far as pistons goes they always reccomend knowing what you have before ordering. which means taking apart the engine and having it miced to find out what you have to go with. with higher milage boreing is nessassary but you kinda dont know how much boring unless u take it apart and find out. with the milage you have i cant see anyreason why 20 over wouldnt work. so if you cant take it apart then i would just stick with a 20 over piston but understand if for any reason they didnt work out then you would have pistons that are custom made and they wont return them for you so pretty much you would have to sell them and order a new set. 20 over should be fine for you tho. getting 20 over means you have to get pistons and rings for a 5sfe that was bored 20 over and also before installing them you have to have the cylinders bored 20 over

 

His turbo kit comes with a map senser. if i lower the compression, put in forged pistons, and i plan on running 13 psi of boost and thats all i modify on in the block, do you think i should still go with the piggy back system? Do you have a web page that goes into depth about how to use and what all the piggy back system is for?

And the only reason i am worried about triing build my own turbo, is because i have never really worked on one, or really even seen one up close. Well i take that back, i have seen one on an mr2 with 3sgte, but he didn't know that much about it when i asked. We are very deprived down here in Southern Illinois. Every one here is all about the mucsle cars. So if you know any websites or anything that i can gain some knowledge on turbos, please help me out.