ST205 3SGTE Turbo into ST202 Options

[thedrunkfish]

There is and online auction im looking at for a ST205 3SGTE Turbo, this claims tthis manifold and turbo will bolt straight on to an st202 celica. Is this true and will there need to be any other mods to the ST202 to get it working? (It is a CT26 Turbo and manifold)

[GottaGoTurbo]

There is and online auction im looking at for a ST205 3SGTE Turbo, this claims tthis manifold and turbo will bolt straight on to an st202 celica. Is this true and will there need to be any other mods to the ST202 to get it working? (It is a CT26 Turbo and manifold)

The ST205 has a CT20b turbo charger, the CT26 was on the earlier gen 5 ST185.
and no, you can not simply add a turbo to a ST202 engine.

[thedrunkfish]

So what are some other options for adding a turbo to a st202?

[zCelicaDude]

oops my bad ct20b or ct26, i always get told different by different people.

by the way, that is actually me that is selling that turbo + manifold on trademe

you will need first of all, low compression pistons plus rods etc etc engine parts to handle boost, you'll need an ecu to also allow boost, and also will probably need a upgraded fuel pump (i have a stock st205 fuel pump sitting available if you want to swap it with your st202 one. I would assume the st205 fuel pump will pump more stock then a stock st202 pump right.??

Maybe injectors, you'll need some way of cooling the air from the turbo, either front mount with custom piping or get a st205 water air cooler. i recommend the air to air intercooler as tis easier and more effective. looks better too..

if you go for the st205 water air topmount, you might have trouble fitting it under your stock bonnent.

um also your st202 is front wheel drive, so you will get use to burning tyres out under boost... you'll prob need a new heavy duty clutch aswell to support the extra power... otherwise ur clutch will start slipping. give me a txt 021971216 if you want to know anything else

[Kadett]

Running stock 3S-GE clutch on my swap for more then a year without problems. No spinning at all. But it will probably wont last that long as soon as the BPU is installed.

[scothaniel]

Rods on the 3SGE are the same as the 3SGTE, so no worries there. The lower comp pistons from the ST205 are direct replacements, and they are fairly cheap ($100 USD) though not as strong as the forged aftermarket pistons. You dont have to swap the pistons to run a turbo, but you'll be limited to around 5 or 6 psi of boost, instead of 16-18 psi.

The stock 202 ECU will also handle low boost, and I believe there's a Greddy Emanage for the 94-99 3SGE. The stock fuel pump will handle low boost levels too, but that ST205 pump would be really nice to have.

Oil and water lines will need to be fabricated, which isn't too difficult. You can use the water lines going to the throttle body, and tap into the oil pressure sensor for oil feed. Then buy the ST205 oil return lines, including the connector at the pan.

[thedrunkfish]

Ok, well besides adding a turbo what are other options for getting more bhp out of the 3sge and keeping it NA.

[Insanity-74]

Instead of getting low compression pistons, could you not just put in a thicker head gasket?????

[phattyduck]

Instead of getting low compression pistons, could you not just put in a thicker head gasket?????

Thicker headgaskets are not a good way to reduce the compression ratio of a motor. It ruins the squish area and results in a poor running motor if overdone. Correctly dished/shaped pistons are the way to go.

That said, the ST205 manifold only fits on the later 3s-ge and 3s-gte motors. A second gen 3s-gte manifold and the turbo from a ST205 would work just fine. Plenty of posts on here explaining what all is needed (see the sticky at the top).

-Charlie

[scothaniel]

Ok, well besides adding a turbo what are other options for getting more bhp out of the 3sge and keeping it NA.

Header & exhaust, cams, lightweight pulleys, and put the car on a diet - thats propbably the first steps. There's also higher compression pistons, head porting, ECU, intake manifold options (you can disassemble the 3rd gen manifold and make an ITB setup). I've heard 200HP is achievable on the 3rd gens with mild upgrades.


See:
http://www.trdparts.jp/english/parts_engine-3s-ge.html
http://www.fensport.co.uk/partsfiles/st200.htm

[Kadett]

Someone here in Holland is doing something big with the 3S-GE. Porting head, custom headers+exhaust system, ITB's (without stock intake section) uprated valvetrain and standalone ECU. He wants to increase the revs to about 8000-8500 and wants to reach 220-230bhp.

[scothaniel]

Wow, all that to reach the power level of a stock ST185!