3SFE -> 5SFE - Toyota Nation Forum : Toyota Car and Truck Forums

islade · 07-29-2005, 08:15 PM

Hi, i've currently got a MR2 Turbo but i'm selling it to get some cash to buy a house.

My friend has ST162 with a 3SFE that is completely shagged. Another friend of mine has a 5SFE from a 91 celica, complete with ECU and sensors etc (he is swapping in a better engine).

I am thinking of getting the 162 and putting the 5sfe in it. I don't care about aircon/heating or even powersteering if it's hard to do, but i just want to get the 5sfe in so i have a car to drive around in once my cars sold.

I want it to last me a year or two, hopefully, until i can again afford a good car.

What's involved aside from bolting the engine in? Can i just swap the old ECU with the 5sfe one, or do i need to wire up heaps of things again?

Any help would be great, because if i don't do this, i will buy a cheap little car to drive around in, which won't be as much fun, and will cost heaps more than if i can get this working without paying too much for labour (such as wiring).

I can get the car for free and the engine for AU$200.

Tommy · 07-29-2005, 08:26 PM

at least one of the engine mounts will be different. there will be quite a bit of rewiring to do, but it shouldnt be that difficult.

stuff like power steering and what not will transfer over just fine. Just make sure you get a complete engine harness, ecu and all the extra stuff.

locker · 08-02-2005, 06:09 PM

I've been in a similar situation. My 91 camry spun a bunch of bearing so I used a spare 5sfe to replace it. I tore the 5sfe down to the short block then bolted everysingle part from the 3sfe directly on. Absolutely everything bolted on fine! Then droped the motor in. Been running great for over 200km so far. The biggest advise I can give you is to replace all the gaskets on the outside of the motor. I've been fighting coolant leaks because I was cheep. the camry now gets around 675km to 50L

TubRog5 · 08-04-2005, 01:36 PM

Quote:

Originally Posted by Tommy

at least one of the engine mounts will be different.

Don't the mounts on a 3sfe match up to the mounts on a 3sge/gte? If so, then shouldn't all the mounts match up to the 5sfe too?

Pineapple · 08-04-2005, 01:46 PM

Use all mechanical from 5S-FE and all electrial fron 3S-FE. This way you don't need to swap ECU and wiring. Block will bolt on to 3S-FE engine mounts.

locker · 08-04-2005, 05:52 PM

Quote:

Originally Posted by TubRog5

Don't the mounts on a 3sfe match up to the mounts on a 3sge/gte? If so, then shouldn't all the mounts match up to the 5sfe too?

EVERYTHING BOLTS UP!

TubRog5 · 08-06-2005, 02:57 PM

Quote:

Originally Posted by locker

EVERYTHING BOLTS UP!

Yeah. I was just questioning Tommy because theres a few people on this forum that say the mounts don't bolt up.

locker · 08-06-2005, 03:25 PM

No worries.... I've just been through it and wanted to make it clear that it absolutely everything bolts up and runs.
Here is the engine bay of my 1991 wagon. I finished the swap about 200km ago and the only issues I've run into are the things I fucked up. Mostly not buying gaskets or even using gasket maker!

The only way you can tell its a 5sfe rather than 3sfe is when you drive it.

slack31337 · 07-05-2006, 01:04 PM

I have a blown 3fse in my rav and I was wondering what it takes to bolt in a 5sfe? do i need to swap ecu and wiring ? That may be hard to get so I would preffer not to. Thanks

Pineapple · 07-05-2006, 02:42 PM

Quote:

Originally Posted by Pineapple

Use all mechanical from 5S-FE and all electrial fron 3S-FE. This way you don't need to swap ECU and wiring. Block will bolt on to 3S-FE engine mounts.

slack31337 · 07-07-2006, 09:46 AM

One qestion though ... I understand that the I can use the 3sfe electrical but will it provide the appropriate spark/air/fuel to the bigger motor (5sfe)?

Pineapple · 07-07-2006, 01:41 PM

Yes, it'll be a bit off but the ECU will compensate.

slack31337 · 07-07-2006, 04:17 PM

Thanks pineapple

camryfour · 07-07-2006, 04:34 PM

I was thinking of switching the block over to a 5sfe on my camry. The previous owner would run it low on oil due to one of the seals leaking, so I am sure the block has wear. Not only that it has 236k miles and still running strong. I havent done a compression check, but I am sure it has compression loss. How does it feel to drive now that the stroke is bigger? Is there lots more torque at the bottom end? Is there loss of power at top end with 3sfe intake and bigger stroke compared to a normal 3sfe? Or better, does it feel overall better?

Pineapple · 07-08-2006, 12:03 AM

The 5S-FE is 130HP, 140 ft-lb.