Engine HP gain from ITB's?

HP gain from ITB's?

does anyone know approximately how much HP i could gain from ITB's, standalone computer, stage 2 cams, and a full exhaust on a 1zz-fe non-vvti corolla?

*edit* oh sorry. and header obviously

the reason why i'm asking is because i was going to do f/i, but i looked under the oil cap of my newly-acquired corolla today, and found lots of oil deposits = rebuilding the engine before i could go turbo, as in new main and rod bearings, and then pistons, etc and on top of that, the poor oiling problem of the 1zz is going to be hard to solve without some serious effort(and this is my daily driver for now). so i was wondering about the N/A options that would give me a constant power gain(no nitrous)

Maybe 30 - 40 hp tuned to the max on high octane, you're going to want a header with that setup too.

is that 30-40 over stock or just from the ITB's?

that's over stock, and that's everything put together including the header.

I just read the edit to your first post. The fact is, if this is your only daily driver and you don't have a pretty good budget to work with, don't even try doing major modifications. You need to be able to afford another car (an older Corolla or Tercel perhaps) as a reliable daily driver, and that way your other car can be down for days and weeks at a time without a problem.

Next peice of advice is, you're probably not going to be happy with the kind of power that those mods will give you if you're driving it on the street. All of those mods are pointed at getting max high RPM power, so you'll have to rev it way up to get the power going, and you're going to want a lightweight flywheel and also high compression pistons to complete the package, if not some head work and a valve job, since you're rebuilding the engine anyway. And that's not going to be a lot of fun to drive on the street, and you're going to spend about as much as a low boost turbo system, have less power, and a lot less torque.

That's my .02, and worth it, too.

ok so i checked the compression yesteday and its still good. the oil passages would need to
be cleaned out with some sort of oil flush, but its not so bad that a bottle of flush
wouldnt be able to get it out. it has 85K on it.

now about my budget and situation:
1) i've just recently lost my project car, mirage, forced to sell.
2) i have 3.5K cash right now. most of which i can put directly into my corolla
3) when i sell the project car, i'll get another 3K

question is what to do with all that money? well my original plan for the project car was
to build a reliable 200whp car that weighs around 2200 lbs with a sedan chassis to use for
autox and weekend drives, and no it cant be stock, cuz that wouldnt give me the confused
and dazed looks when I take off like a rocket in a car that is 100 hp stock. since i have
to lose the mirage, i was considering making a reliably boosted corolla with the same
properties which would still be my daily driver

now the problems with boosting a corolla:
1) a poor lubrication system - i just found a site that sells high-flow oil pumps for the
1zz-fe for around $200. along with a ball bearing turbo that would require less oil then a
older floating-bearing type, i think it would be possible to remedy this problem. however,
the engine needs to be taken out and the timing chain needs to be removed in order to gain
access to the pump.

2) weak bearings - not sure about the main bearings, but the rod bearings would need to be
replaced with MWR ones because from what i hear, on a turbo corolla the stock ones would go
out about every 5k or so destroying the crank too and bending rods. from what i've heard
all you need to do to replace them is to remove the oil pan.

3) downtime - i can afford some downtime when i'm at school, but i'm there during the fall
winter and spring - and i dont have a garage to use there. plus i could only work on
weekends this would really limit my ability to install the pump(i dont have an engine
crane or anything like that)

i was planning to do suspension right when i get back to school(approx $800) which leaves
me with 6K for the engine by the wintertime. i would also think it would be wise to always
have 4K on me when i mod the engine just in case it breaks and i would need a new one.

now that i've explained my situation, what path to my goal do you guys suggest I take?
boost and build the engine up or just get a new one when the current one breaks? do
something really crazy with NA to hit the numbers i need? for autox i would probably also need some midrange torque as well, so i'm not so sure about NA

i'm really lost in terms of the path I want to take. doc?

If you're telling me that you have $6500 to spend on your car, then the answer is simple: swap in a 3SGTE. I could do it for that price and you'll have 225hp from a totally stock engine with TONs of room for improvement and totally reliable.

-Doc

I'd say use it as a down payment on a faster car