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[MR2Jedi]

3S-GE / 3S-GTE for those of you interested in doing swaps...

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3SGE / 3SGTE ENGINE SWAP

The 3SGE and 3SGTE are important engines in the Toyota line-up. They are the most potent of all the Toyota 4 cylinder engines in the 2000cc class. Celica, Camry, MR2, RAV4, and Corolla owners can benefit by upgrading to this engine.

For Celicas, Camrys, MR2s, and RAV4s- equipped with the 3S, 3SFE, 5SFE- engines the natural upgrade is the 3SGTE with horsepower ranging from 200 to 260 HP in the different generations. With minor bolt-on upgrades power up to 350 is attainable. Internally-built engines can produce up to 400 safely. The standard transmissions can be used quite effectively, but if you are planning running 12+ psi boost get the Turbo transmission..

For a milder set-ups the 3SGE may be adequate. Naturally aspirated the 3SGE is available from 140 to 200 HP. The 2nd generation (never imported to the US) produces 170 HP and are relatively cheap. Most parts for these engines are interchangeable with US engines, and is therefore easier to get parts for. The 3rd generation has 180 HP, and we support the unique parts for this engine. The 4th generation with VVTi has 200 HP, but is expensive and difficult to wire.

With such a wide choice of applicable engines, it is more the budget rather than HP availability that will determine your choice. Converting engines will require changing harness, ECU, AFM, related relays and igniters. No these are not legal in the US, unless you use US model engines (which limit you to the 1st generation 3SGE and 3SGTE, from the Celicas AllTracs, or the 2nd generation 3SGTE in the MR2s and AllTracs..

Japanese imported engines do not have EGRs- an important smog device required in US engines. It is impossible to modify a non-EGR head. Emission controls in Japan are stricter than the US, so technically they will pass tail-pipe emission tests, but they will fail any visual smog inspection.

Celica Notes: Any S engined Celica is relatively easy to do, if you have all the correct parts. Celicas with the A engines will require a new transmission, new engine brackets and new power steering and ac lines. For turbo, read the following MR2 notes. Stick with the 2nd generation engines as it has a built-in air-to-air intercooler. The 3rd generation engines have Liquid-to-Air intercooler and trying to set it up, you basically need a front clip.

MR2 Notes: Turbo conversions are best done using the 3SGTE, rather than turbo kits. 3SGTEs drop in easily with minor rewiring and the usual new resistors, igniters, and relays. You need the correct engine harness, ECU, and AFM. We normally stock complete conversion kits. Changing transmissions is not critical, but if you plan very heavy use go get the turbo transmission. This will require new axles, depending on the year model of the transmission, ABS, LSD, etc. The any generation 3SGE is a good substitute to the 5SFE, in fact in Japan it is the standard engine. For the ultimate- drop a 3SGTE in an AW11!

UPDATE: 3SGE and 3SGE installations for the AW11 is now a lot easier. Previously, we had to modify firewalls, brackets, etc. We have brackets and engine accessories that will make this all simple- with AC too !!!. Watch updates under Project Cars.

Corolla Notes: The 3SGE and 3SGTE engines have been installed in the FWD and RWD Corolla models. In RWD configuration, new intake and exhaust manifolds need to be fabricated or the original units reoriented, since these engines were originally designed and installed at an angle. See our list of RWD conversion parts- NOTE this is to fit the 3SGE or 3SGTE into a RWD chassis, not to convert cars to RWD. The only exception is the Altezza 3SGE Dual VVTi that came in RWD form only! In FWD, new brackets for the engine and transmission need to be fabricated.

These are general guidelines. We have no step-by-step instructions to do these conversions, since there are a lot of variables involved. Do not attempt if you are doing this conversion by yourself and feel you are not up to the task or your shop has never done one before. See the 3SGE / 3SGTE TECH NOTES also.

Here's the link:
http://toysport.com/webpages/Techinf...tech_notes.htm

[moogleX]

interesting, i guess if your going to do the swap, make sure you get a few things. and i speak from experiance on this part.
"engine + tranny swap kit", ebay special or tuner shop special

1. the axle is important, cuz like they said, its a diff axle for the turbo tranny.
2. the MAF sensor.
3. the ecu with UN-CUT harnesses. make sure they are uncut, make sure you have the two from the engine that can plug into the ecu, and make sure they give you the CUT plug that plugs into the third spot on the ecu so your mechanic and rewire that part. cuz the third plug comes from your chasis(idiot lights and ignition sensors blah blah blah) and is a diff shape than the turbo ecu fits. its easy if you have the cut turbo plug so you can just splice a few wires and be done.

if i had done just those three steps, i would be on the road atm, instead its still in the shop while we wait for a plug.


the 3sgte is an ideal swap, the car comes stock with it so obviously there is a lot of support for 3sgte mr2's and tons of aftermarket support cuz its toyota's jewel. along with the 2jz :p and is capable of lots of cheap reliable hp. and has potential to hit huge numbers, look at Hyde Jeff has done amazing things with his. Many have done the 3.4 or 3.0 v6 swaps, but they are not intended to be perfomance engines, so there is little if any aftermarket support and everything needs to be custom. and for the money it would cost to get 300hp out of the 5sfe, you could swap a 3sgte and have it cheaper. cuz it also is an economy head with no support. so depends on your style, budget, and what you want to do with your 2, and what you want out of it happy modding!

DISCLAIMER!! (just my humble opinion) hehe

[deuce93t]

Great article to read thanks for sharing. I would have to disagree with moogle though on that it would take way to much money to make a 5sfe produce the power of a 3sgte. My buddy and I took a stock 5sfe and dropped a turbo kit on it and nothing else and ran it at hte track against other 3sgte MR2 and some of which were not stock and we actually were consistantly running about 4 tenths of a second quicker then the 3sgte. as well this is from my experience and unless the other 5 guys at the track had no idea how to drive then i think it is pretty solid.

[moogleX]

im not going to argue as i dont have all the numbers to prove things one way or another, but if i could spend 1000$ bolt on a turbo/ic to my N/A and be faster than a 3s? why would anyone do a swap? and why does noone (my experiance from researching info about mr2, and originally wanted to swap in my celica, browsing the net, on the forums etc) cept a proud few build their 5s?
im sure it can handle a decent amount of power, but raises a lot of questions about what needs to be done to get reliable long term power, availability of parts/custom work etc.

i dont want to argue and im not butthurt about being called wrong, just a few thigns i have noticed and questions that come to mind.

[deuce93t]

No i am not arguing either. I agree with you as well that if that is the case then why do people do the full motor swap and to tell you the truth i think it is because of a couple of things one is the amount of electronics that are eventually involved to get a 5s in the upper numbers in the long run as i have found. as well lkike you said there isnt the aftermarkedt support to the 5s as there is the 3s. Which personally i think is good because then manufactures are able to spend their development time on one motor and not two. if someone is looking for short gains then the 5s turbokit is what i have found is best but if they want to really go anything above that then the 3s is without question the route to go.