How about this for an engine swap?

[Red Fury]

I have limited time on the computer, but i have a quick question.

How possible (easy) do any of you think it would be to swap a Mitsu 4G63T engine into an SW20? I know some of you die hard toyota fans are going to chase me with pich forks for what im about to say, but the 3G just doesn't impress me that much from what I know about it,. But I do know a darn good bit about the 4G63 and to me just seems like a bit better engine.


Plus I already have a ton of parts just laying around for it.

[ewaustin]

The 3S-GTE is an amazing engine. And don't think I'm just saying this because I own one, because I don't. I just bought my first Toyota last week ('87 MR2 n/a) which has the 4A-GE.

In Japan they have a series of competitions for the 0-300 kilometer/hour acceleration tests. Most of the 4th generation Supras that compete have the 3S-GTE swapped in place of the 2JZ-GTE that they came with for two reasons. 1. with the right setup, you can rev the living daylights out of a 3S-GTE. 2. there is a huge weight savings by using a 3S-GTE instead of a 2JZ-GTE.

Here, this will tell you everything you need to know: http://kaferjca0.tripod.com/3sgteinfo.htm

On a side note, on the STREET in Japan, I saw an SW20 MR2 that had made it to the HKS all-Japan Drag Racing Finals. It was beautiful, carbon hood, carbon trunk, carbon doors, non-popup lights, stripped interior, full cage, with a HUGE intercooler mounted where the rear trunk should have been.

Originally Posted by Red Fury

I have limited time on the computer, but i have a quick question.

How possible (easy) do any of you think it would be to swap a Mitsu 4G63T engine into an SW20? I know some of you die hard toyota fans are going to chase me with pich forks for what im about to say, but the 3G just doesn't impress me that much from what I know about it,. But I do know a darn good bit about the 4G63 and to me just seems like a bit better engine.


Plus I already have a ton of parts just laying around for it.

[MR2crazybyong]

4G63T, 3sgte
the 3sgte is one of the top engines you can modify.. Damn, an MR2 with a mitsu heart, just ain't right... Keep it toyota dude..

[onehotcamry]

i know it's very easy to make power on the 4g, but I think with the money invested in putting that in, you could have a decent 3s in there.

[toyotaspeed90]

it's been done into a mk1

[roscosera]

doing that would make no sense at all. the 3sgte is probably the most tunable engine there is. especially from the rev 3 on....

it would cost a hell of a lot to get the mitsi engine in there. money that could be spent tuning a 3s

[RePete]

While I have no qualms about putting a non-TOYOTA engine in my '91 (if it's a worthy engine) I don't think Red is well read on the 3SGTE engine - he should do more research. Anyone who's modified or tuned engines or knows anything about great motor designs appreciates and recognizes that this particular engine is a reliable, highly modifiable, well engineered power plant that stands out in the crowd as one of the top mass produced import engines of the 90s.

[Red Fury]

Well I dont want to start a debate about engines, thats not why I came here. I'll look into it more but as for the people giveing the Mitsu 4G a thumbs down, you might want to check into what the worlds fastest AWD 2.0L 4cyl turbo car is. It's a 1990 AWD Eagle Talon TSi owned by John shepard, which has recently made a 7.97 sec pass. Now I know anything is possible with enough money. But that should tell you something.


As to the 3S being easier to modify, I find that pretty hard to beleave. But like I said im stuck in Iraq right now so it will be almost a yr before im state side again and can buy an MR2 so i'll just do more research untill then.

[MRQtwinturbo]

^^have you thought about how you would modify an AWD drive motor into a rear wheel drive mr2??..the money you spend on making it work...you could just as easily build a 700hp 3SGTE...we are comparing apples to oranges here....

[SpeedballTrix]

My mother always told me if I have nothing nice to say I should say nothing at all.

Honestly though I have nothing to contribute to this thread except to say what has already been said. The 3S is just as good as the 4G, and it was meant to go in the car.

If you wanna do it just because you've got a ton of parts already, Ill just let you know now you're going to have to fabricate everything.
Mounts, headers, trans adapter, and the wiring... good luck.

[Gairloch]

That you would have to re-engineer and fabricate a sh**-ton of stuff in order to make the swap work right is what would kill that idea for me. You might have a lot of parts for the 4G but by the time you're done with all the fabrication(and refabrication when it doesn't work the first time) you will have long past the benefit of having those parts around.

The 3S motor has a fairly high whp ceiling (275+ on a smaller budget, 500+ on an large budget) and a history of running strong LONG past the time it should have kicked the bucket. That being the case, unless you're really into the novelty of the project I would suggest you stick with the 3sgte and put those fabrication and modification costs into performance parts.

[CryoSlash]

Originally Posted by ewaustin

The 3S-GTE is an amazing engine. And don't think I'm just saying this because I own one, because I don't. I just bought my first Toyota last week ('87 MR2 n/a) which has the 4A-GE.

In Japan they have a series of competitions for the 0-300 kilometer/hour acceleration tests. Most of the 4th generation Supras that compete have the 3S-GTE swapped in place of the 2JZ-GTE that they came with for two reasons. 1. with the right setup, you can rev the living daylights out of a 3S-GTE. 2. there is a huge weight savings by using a 3S-GTE instead of a 2JZ-GTE.

Here, this will tell you everything you need to know: http://kaferjca0.tripod.com/3sgteinfo.htm

On a side note, on the STREET in Japan, I saw an SW20 MR2 that had made it to the HKS all-Japan Drag Racing Finals. It was beautiful, carbon hood, carbon trunk, carbon doors, non-popup lights, stripped interior, full cage, with a HUGE intercooler mounted where the rear trunk should have been.

umm that has very misleading inofrmation in it. no supra would every drop the 2jz because it doesnt make sense. The 2jz can rev as high as the 3s because with the competition level money in it, they can lighten the crank, pistons and rev it to 11000. Ive seen 1 so far with that rpm bvut about 50 with a 9000 rpm. Tell me this also would a 3s gte with no possibility of getting the same amount of torque be able to push such a monster sized car like a supra? This is also why they used 6 speed automatic gearboxes instead of manual in pro drag because its too hard to control it and shift at the same time. Get your facts straight before you post. but i agree the 3s is awsome for light mr2's.

[Red Fury]

Well dont like the idea of haveing to swap a engine into any car I buy, I prefer it to have a good engine in there already that is easily buildable, I get that the 3S defently meets that little demand. But I wanted to do it more or less just for the hell of it.


Now off the top of my head it doesn't seem like the swap would require THAT much fabracation. MY DSM is AWD, however there and many more that are FWD, besides that if im not mistaken the engine sits the same way (sideways) so it just comes down to mounting points (thats easy) wireing (not to hard) and the transmition (the hard part) If I had any idea of how the tranny would fit and the diference's of the two transmitions that would make or break my idea.


However I think it's already broken. Now I just have to decide if an MR2 is really what I want. Because im also considering an 93+ RX-7 I love RX-7's I just dont trust there engines for shit lol.

[CompanyFlow]

So if it isnt that hard, why dont you do it professor?

[Pineapple]

How much HP you're looking for? Where did the 3S-GTE fall short?
You can use a Mitsu tranny and custom make axle to connect to the hub.
You'll also have to find a way to connect ECU to your gauge to get them to work.