Gen4 3sgte or 2GR for an sw20?

Hey guys, ive got an sw20 with gen4 Caldina motor which i did the swap on myself.

Now I've also got my hands on a 2GR engine from a Kluger with 6xxxx km's through work =p.
So here's the thing, is it worth putting a 2GR in a sdub for the price ? From looking through the forum, some have quoted 10k for a complete swap plus motor exchange. That's a VERY hefty price. If you look at the power and torque figures there isn't much difference at all. Only difference is the uniqueness, but at the cost is it really justifiable? Personally I find the Caldina motor a better option. Its cheaper and newer than a gen3 motor. Its a hell of a lot easier to convert and not to mention cheaper. I know there isn't much after market support for the gen4 but same goes for the 2GR..
With the 2GR the cost of Necessary conversion parts are already huge. Engine, harness,ecu,transponder unit,key, Accelerator pedal due to DBW, E153 box shaft and hubs if you don't already have one, custom engine mount, exhaust manifold and exhaust and not to forget the headache of wiring it all up to work.

For the gen4 all you need is : engine , harness , ecu whether it be manual or auto, either S54 or e153 boxes will work without any modifications to fit, Exhaust flange has to be changed and wiring isn't too hard of a job.
I'd love to find out the difference between the two if you put them both head to head=]

Anyway let's see your inputs on this topic, I'd love to hear the pros on cons from others perspective.

I wouldn't ever consider ripping out a perfectly good Gen4 3SGTE to replace with a 2GR. The 3S has a lot of easy potential, especially the Caldina motors having VVT would be nice. However if I had an Sdub without an engine then I'd probably go straight for the 3.5.
Much more modern engine, smoother delivery, more power and better economy, supercharger kit, etc. You might see it as ruining a unique car, I'd see it as making it more unique.

blacky83

I wouldn't ever consider ripping out a perfectly good Gen4 3SGTE to replace with a 2GR. The 3S has a lot of easy potential, especially the Caldina motors having VVT would be nice. However if I had an Sdub without an engine then I'd probably go straight for the 3.5.
Much more modern engine, smoother delivery, more power and better economy, supercharger kit, etc. You might see it as ruining a unique car, I'd see it as making it more unique.

the gen4 3sgte caldina motor DOES NOT have vvti. only the NA 4th gen 3sge had vvti in the caldina.
 
all the 4th gen 3sgte motor got was weak rods, COPs/distributerless ign, higher CR and different turbo.
 
you cannot bump up the power so easily on the stock bottom end of the caldina 3sgte motor as you can snap the rods if pushed. they have the same rods as the beams from all accounts.
 
at the end of the day, what motor you have in your car depends alot on intended use and what you personally want.

I think anything you do to a car makes it unique. Even little rattling noises inside the cabin is unique =p.

Yep gen4 3sgte does not have vvti. Weaker rods, is that just a rumour ? Has it actually been proven some how? I was running mine on 1 bar everyday and never had a problem, even had it on the dyno 5 times in a row. Maybe it's just the unlucky few. The only benefit I can see for me to use a 2GR is the fact that it's a newer engine. Hypothetically If you guys had a rolling shell which engine would you prefer to have? I think that's a better question

Hey,
If starting from scratch i'd def go the v6 just for reliability.
 
Of topic but MuMan its bugging me what word is this  ****ising???

+1 
Only Toyota engines with 'G' (wide angle twin-cam) type head(s) should be allowed in MR2s.

Personally to answer for what I would do if I had a rolling shell and money not a big deal, I would go 2GR. The car's purpose would be a fast (occasional circuit driving) and unique street car. Another reason I choose 2GR over 4th Gen 3SGTE is that it the MR2's handling will limit the power capable of turbo (300whp+). Struts on the rear can only take you so far unless AWD like GC WRX. Therefore in theory you could match a turbo MR2 on the track taking into consideration driving skills. In short:
Pros:
- Newer, as everyone says
- Lighter
- 200kw good enough for me
- Parts readily availiable
Cons:
- Possibly harder to swap
- Engine less potential
 
To me pros outweigh cons. There's a guy in US who can do the wiring for about $450.
Also to do a perfect 3SGTE properly don't you need the turbo's drivetrain, axles etc? Another thing if I were to go 2GR then I'd mate the V6 with the EA60 tranny (Lotus Evora and UK Toyota Avensis Turbo-diesel) with some fabrication. Might do this once the N/A turns it's last stroke.
 
But yeh that's my very theoratical opinion. You already have a 4th Gen 3SGTE so I'd leave that.
 

Hey Dudeman sorry for your loss :( but I'm glad there weren't any injuries. Hope damage isn't too severe...