1zz-fe turbo good/bad? Thanks.

[01Ce|icaGt5spd_FL]

Hi,

I have an 01 celica gt with the 1.8 1zz-fe with 130,000 miles on it. Car runs fine with no mechanical problems. I am curious about installing a small turbo with 6-7 lbs of boost (or whatever value is safe).

I am wondering if this is, in general, a bad idea considering the mileage on the current motor and whether it would be worth my time to slowly piece together a turbo set up as I have time to spare but can not afford to spend a few thousand dollars all at once.

If this plan seems feasible what would a 1)basic parts list be for a turbo set up be? 2)for this particular motor?

I'll be looking into this myself but I thought I'd post in case someone on here has done something similar and can fast track me or warn me of any major problems.

Looking for a final budget of 1-2 grand for parts, possibly install myself, plus whatever cost ends up being to have it tuned safely.

All comments appreciated. Thanks.

[MR2Jedi]

MonkeyWrenchRacing has turbo set ups for the 1zz.
You will need:
The turbo.
Turbo exhaust Manifold
Downpipe
Wastegate(if turbo is not gated)
Wastegate actuator
Oil feed line
Oil return line
Coolant line(supply and return, if the turbo requires one)
Intercooler and fan
Intercooler piping and couplers and clamps(T clamps are best)
More fuel(via either more pressure or larger injectors, depending on turbo )
Possibly a higher capacity fuel pump(again, depending on which turbo you use)
Fuel Pressure regulator
Boost Gauge(I would not boost without one)
Boost controller-either manual or electronic
And some type of engine management system

[jladha01]

Hi Guys,

Im looking to carry out this set-up.

Just wondering whether the engine, stock, will be capable of coping with the pressure and turbo?

obviously changing rods and pistons would be advisable, but is there a safe boost, psi, to work with on a stock engine?

Thanks

[yamahaSHO]

I wouldn't be too concerned about mileage if the motor is healthy. One thing to consider may be changing out the rod bearings. As said above, aside from the turbo parts, fuel will be a concern. You'll likely need a larger fuel pump, injectors and possibly an aftermarket regulator.

I looked at boosting one of these cars about 10 years ago, but never ended up buying the car... However, I'd image the engine would handle 6 PSI safely with a good tune. I personally recommend learning to tune for yourself. Your best bet would be to get the tuning software/hardware now and practice dialing in injectors, MAF, timing, etc while you're not at any real danger of blowing anything up. Once you're boosted, a good knock even can cause major problems.

If you're looking to swap out engine internals, you're looking at a whole 'nother ball game as you would likely build it up very strong.

[jladha01]

would you know of how much gain there would be to a 140bhp engine?

[yamahaSHO]

Roughly 200hp, however, I would need more specifics on the particular setup you'd be going with.

[jladha01]

ive been looking at a gt28 series turbo or even TD05 off an evo. externally wastegated, about 9 ltr FMIC on a stock engine running a safe boost. also a greddy emanage

[yamahaSHO]

With those selections, you'd probably be at the mercy of what the stock engine can handle. I do not know what that is as I have never dealt with these engines.

[MR2Jedi]

You'll get 10-15hp per lb of boost. Charge cooling and tuning are critical.
Think of it this way, you can safely inflate a tire to 32psi and its made of rubber. So an aluminum block and head shoud be able to take much more psi. But throw in ignited gasoline and its a whole new ballgame. It's better to run a little richer fuel mix than a lean one. Detonation is deadly to engines. And boosted ones are more likely to run so.
Again, it's all about tuning. Proper ignition timing, charge cooling and fuel ratio's.
You can safely run 7-10psi on stock internals. The GT28 is good to about 350hp and really not a good match for what you're wanting to do.I would go with a smaller, quicker spooling turbo, like a hybrid T3/T4 -which are good to about 300hp and keep it in the 250hp range.
It'll be a kick to drive.

[MattK&NFilters]

An AEM Wideband UEGO will definitely help with the tuning.

http://www.aemintakes.com/wideband-air-fuel-gauges.htm

[jladha01]

thanks guys! helps alot.

Ive managed to source a Yamaha BEAMS engine that is used in the Celica TRD M SPORT. just awaiting delivery.

[Smaay]

you are going to put a BEAMS into a 7th gen celica? you really should have done more research. its going to cost you an arm and a leg to mount it. plus all the electrical is going to be a nightmare. the BEAMS was never designed for the 7th gen. the exhaust and intake are on the opposite sides. the transmission is different, you need custom axles. the list goes on and on

[Evo_lucian]

Turbo parts list;
Turbo
Turbo manifold
External wastegate depending on turbo
Downpipe
Oil feed and return lines
Intercooler and piping
BOV
Boost controller (manual or electronic)
Fuel management and larger injectors
190 lph or 255 lph fuel pump


Fuel pressure regulator is not needed . Hp gain per psi is different from turbo to turbo. One cannot say 10-15 hp per psi , if that were the case we would be running 40 psi to make 500 hp. There is no set formula for hp gain. It will come down to size of turbo and how aggressive the tune is.

Stock engine will be fine for a small turbo build. Do a compression check first to find out the condition of engine.

Honestly I seriously dislike Garrett turbos. Most are way over priced for what they are. The gt28 is basically an overpriced CT20b. PRECISION TURBO is where its at.