5sfte Turbo - Toyota Nation Forum : Toyota Car and Truck Forums

Mister2.2SIK · 10-21-2008, 02:49 PM

Im recently new to the toyota Mr2's.
i had ended up buying a 1991 toyota Mr2 2.2L 5SFTE and i was wondering if there is anyway to add on a turbo without swaping the entire engine or gutting the internals.
if there is a way please let me know ALL if the details.
any help will do

Thanks

430hpToy · 10-21-2008, 03:22 PM

Welcome to the forums!

Yes, you can add a turbo without rebuilding the whole motor. It will however limit the amount of boost.

If your motor does not have a turbo at the moment it is a 5SFE. 5SFTE is what they call the motor with a turbo. Just figured I'd clear it up for ya!

I myself have not done this, but have read many articles on this forum as well as others, of people who have... Just do a search on "5SFTE"

Mister2.2SIK · 10-21-2008, 03:40 PM

so its
5SFE - 2.2l naturally-aspirated
5SFTE - 2.2l naturally-aspirated W/turbo
3S-GTE - 2.0l turbo

that makes more sense now.
thanks for clearin that up.
lol

im not too worried about how much boost i will be able to run. id be happy with only about 12 lbs.
but thanks for the help!

430hpToy · 10-21-2008, 03:46 PM

Quote:

Originally Posted by Mister2.2SIK

so its
5SFE - 2.2l naturally-aspirated
5SFTE - 2.2l naturally-aspirated W/turbo
3S-GTE - 2.0l turbo

that makes more sense now.
thanks for clearin that up.
lol

im not too worried about how much boost i will be able to run. id be happy with only about 12 lbs.
but thanks for the help!

no prob!

12lbs is probably going to be too much on a stock 5sfe. i'd do some searching around on here! like i said, there should be plenty of threads talking about this.

tHa kNiGHt FaLL · 10-21-2008, 04:07 PM

and 5sgte 2.2L Turbo... or the frankenstein

and 430hp Toy is right. depending whether you fab a rear mount turbo kit or find a manifold to fit the most your probably going to be able to boost on those internals is 4-6 lbs.

***MR2Jedi*** · 10-21-2008, 08:25 PM

You will need more fuel and some way to manage it. 1 of the problems with turboing the 5sfe is the economy head it comes stock with. The water jackets are not adequet to cool the head from all the extra heat. so you will have to keep boost below 6psi. like Knighfall said. I highly recommend an intercooler.

Mister2.2SIK · 10-22-2008, 05:43 PM

for now i think im going to hold off on the turbo part. i will probably just save up and get a 3S-GTE swap.

but in the mean time. what are some good ideas to give me some extra power out of my 5SFE?
i already have exhaust and headers and intake. just the usual crap.

tHa kNiGHt FaLL · 10-22-2008, 05:50 PM

Quote:

Originally Posted by Mister2.2SIK

for now i think im going to hold off on the turbo part. i will probably just save up and get a 3S-GTE swap.

but in the mean time. what are some good ideas to give me some extra power out of my 5SFE?
i already have exhaust and headers and intake. just the usual crap.

thats pretty much it... weight reduction and handling to improve power to weight ratio

***MR2Jedi*** · 10-22-2008, 05:54 PM

There's not much out there besides what you already have. You could get your cams ground.
RipMods used to make a SC for it, but there wasn't enough support, so they discontinued.

Mister2.2SIK · 10-22-2008, 06:07 PM

would new cams and cam gears do any good or no?

***MR2Jedi*** · 10-22-2008, 06:11 PM

New higher lift/longer duration Cams are always a great mod.And you would need Adjustable cam gears to degree them . But I don't know if anyone makes Cams for the 5sfe.But that doesn't mean they don't exist.

Mister2.2SIK · 10-22-2008, 06:13 PM

ok thanks for the help. ill try to look around for some.
ill post if i find any.

scooterman · 10-26-2008, 02:46 PM

Quote:

Originally Posted by tHa kNiGHt FaLL

and 5sgte 2.2L Turbo... or the frankenstein

and 430hp Toy is right. depending whether you fab a rear mount turbo kit or find a manifold to fit the most your probably going to be able to boost on those internals is 4-6 lbs.

A stock 5sfe can handle over 15 psi on stock internals. I know this becuase my engine is running fine on this, so is mannys and so is shannons.

5sfes dont fail becuase of boost, they fail becuase the stock ecu can not run a boosted engine correctly. Bad timing, lack of fuel and lack of oil kill 5sfe's not weak internals or too much boost.

tHa kNiGHt FaLL · 10-26-2008, 08:32 PM

Quote:

Originally Posted by scooterman

A stock 5sfe can handle over 15 psi on stock internals. I know this becuase my engine is running fine on this, so is mannys and so is shannons.

5sfes dont fail becuase of boost, they fail becuase the stock ecu can not run a boosted engine correctly. Bad timing, lack of fuel and lack of oil kill 5sfe's not weak internals or too much boost.

just cause you can boost it doesn't make it safe.

the non forged stock internals are not designed to handle the amount of heat created. This will drastically decrease the life of those components whether you've experienced it or not.

but if you can control heat transfer better by upgrading cooling and oil, and not letting it run lean you may be able slow it down and the only thing you have to worry about it is overboosting. But if you know engine CFM and the correct formula you can calculate max safe boost for any engine.

where there is a will there is a way for any engine. under 6 psi is the only safe amount you can run w/ a bolt on kit and no complimenting upgrades is maybe wha i should have said.

scooterman · 10-26-2008, 09:35 PM

3sgte pistons are not forged anyway.

people have this false perception that the 5sfe is a weak engine and its not. It does have a very poor flowing head which makes good low end torque and no power in higher rpms.

the only problem with a turbo on the 5sfe is the engine management was not designed with a turbo in mind.