3SGE Rev2 / Rev3

[fred130111]

Just a quick one really, my engine is on its last legs (rev 2 3sge ) around 180K needs a new clutch and pretty much had a prolapse and had shot oil everywhere due to the screws that Toyota decided to use for the rocker cover :S, i sorted this issue but there is oil everywhere and i cant really be bothered to clean it.

So im thinking just to change the engine for a much lower mileage one instead of faffing around changing the clutch and then probably having to do the cambelt and headgasket

from what ive seen you can get a rev 2 3sge a fair bit cheaper than the rev 3+ 3sge but performance wise is there any noticable difference? because if not I will just source a rev 2 one.


Cheers!

[Ryan S]

get a rev2 import engine, i had a rev2 import and it was much quicker than my rev3 UK

[fred130111]

that is interesting! from what i understood with most imports around that age was some wouldn't require a cat? and there was a difference with emission laws. Please correct me with wrong but I didn't think there was any difference with the engine itself lol!

[bobhatton]

Just a quick one really, my engine is on its last legs (rev 2 3sge ) around 180K needs a new clutch and pretty much had a prolapse and had shot oil everywhere due to the screws that Toyota decided to use for the rocker cover :S, i sorted this issue but there is oil everywhere and i cant really be bothered to clean it.

So im thinking just to change the engine for a much lower mileage one instead of faffing around changing the clutch and then probably having to do the cambelt and headgasket

from what ive seen you can get a rev 2 3sge a fair bit cheaper than the rev 3+ 3sge but performance wise is there any noticable difference? because if not I will just source a rev 2 one.


Cheers!

We have an engine for sale complete with clutch and gearbox, I will find out what it is.

[Ryan S]

that is interesting! from what i understood with most imports around that age was some wouldn't require a cat? and there was a difference with emission laws. Please correct me with wrong but I didn't think there was any difference with the engine itself lol!

pre 95 import won't need a CAT, my tubby gets through emissions no problem with no CAT i'm not sure what the differences are with the engine but my import deffo felt a good bit quicker than my uk car. i've spoken to a few guy with imports who've said they are set up different etc, I can't confirm as i never really had much interest in the non turbos after moving to a turbo.

[MR2shane]

I'm sure there's a difference...

There's a reason why virtually every MR2 championship driver runs a rev3 engine.

Having said that...my import Rev2 i raced in 2013 was a bit of a frankenstein, running a UK gearbox (imports have better ratios), auto ecu (yes i converted the car mechanically only) with just a decat, K&N intake and kakimoto exhaust as mods and yet i still got some midpack results against a field of mostly Rev3's.

Generally I found initial accelleration was only very slightly slower (even if i was quicker out of a corner), but mid & top end was alot slower...(I still have nightmares about the Hanger Straight & Rockinghams Turn One) . But like i say, slower auto ECU map & other factors could have contributed.

Either way, i have now bit the bullet, stored the sweet Rev2 nice and safe as a spare and arranged for a Rev3 Hurley Race Engine to be installed ready for this season

So personally I would look for a good rev3 to drop in yourself. Or get in touch with Sean Hurley ofcourse.

[fred130111]

Ah interesting! Yeah from what I've seen most people say rev 3 na engine is an easy swap in terms of power I'm not massively bothered as I will be purchasing a turbo mr2 at some point for the summer but I would like to keep this one running as my daily

I havnt done an engine change before but I am pretty hands on with it, so has anyone got any advice is it really that simple or is it going to be a complete pain and probably better for me to pay the 500 quid I was quoted to get it swapped?

[madbasshunter]

Its not hard to swap the engines over,drops out of the bottom, took all day on mine. That was with two of us and I hadn't met Jeff before he turned up that morning to help me. So it shouldn't take as long as that included fitting a turbo box to the na engine before fitting etc.
Sorting the wiring out took a little longer as you will have to cut and shut a few wires at the ecu and engine bay fuse box.
Just make sure you get the rev3 engine, loom and ecu rev2 has the later coilpack and ignitor already.

[fred130111]

Yeah wireing really was the main concern, would it be easier to literally get a rev 3 ecu and loom and swap the whole lot out? Or is it literally just a few things here and there like you say?

Came across a rev 2 import engine today at a breakers low mileage and they only wanted 150 for it, it was a while ago but I spoke to someone at pacific works I could swear they only wanted 500 all in for the swap and at that price I guess it would probably make more sense to do that?

Another question would my rev 2 gearbox fit the rev 3 engine? I guess it would but could any of you wizards enlighten me?

Cheers

[RST]

Mind the pre 95 thing is more significant for 3SGTE's (MR2's -not GT4's). I sold a relatively low mileage gen 2 3SGE about 2007 time and got £150 then (with well more that in new servicing parts fitted recently) -I'm sure they're found for less now. I may stand corrected but thought all the boxes would bolt-up -there was some slight change in gearing between revisions but nothing physically different to fit?

...Just be careful if you're looking on-line for engines, there's lots of posts on certain breakers not to buy from!

I would do a phone round the affiliates personally. At least you got 180k out of the last one -that's not too shabby.