about to swap a 4th gen in? lookie here, here's some useful info Options

[easternpiro1]

recently ive been looking into buying parts for my 4th gen before i put it back in my coupe and i got the wondering to what are the most important things most people replace before you put in a motor.

With the help of lagos and pitcelica, i was given some useful info and advice that would help us all should you go down the road of a swap.

The following are things reccomended you replace before putting motor in, and in a 4th gen owners case, a means to get your hands on the parts!

Stuff that was suggested:

-rear main seal : even if the part numbers are a little different than gen2 or gen3 3SGTE, I'm 99% sure that they are all the same seal because the crankshaft is the same on all gens.
-front main seal : gen2, gen3 and gen 4 have all the same part number.
-cam seals : gen2, gen3 and gen4 all use the same exhaust camshaft and both cam seals (intake and exhaust) have the same part number, so, by analogy, any 3SGTE cam seals will do the job.
-thermostat : a gen3 thermostat will work
-waterpump : a gen3 waterpump will work

belts are the same across generations so u can go to napa or something to grab one (I would personally reccomend you get an OEM toyota timing belt, and any other part you can b/c of better quality lagos can hook all 6gc members up thru toyota )

I would add timing belt, timing belt tensioner + idler pulley and all brand new v-belts. Verify if the coolant hoses near the oil cooler are in good shape. Do not change them if they aren't worn.

I used toyodiy for comparing the part numbers :

'01 Caldina : http://www.toyodiy.com/parts/g_J_2001_TOYO...215W-DWMZZ.html
'95 ST205 : http://www.toyodiy.com/parts/g_J_1995_TOYO...T205-BLMVZ.html
'94 MR2 : http://www.toyodiy.com/parts/g_U_1994_TOYO...L-AJMZZA_1.html

Good luck!

and for good measure, i found this old list from somewhere on this site that was listed about interchangeable parts throughout the gens of 3sgte:

So, as I can seen, a lot of people want to know what are the aftermarket parts are available for the ST215 3SGTE engine. Here's are some parts that are bolt on :

-Adjustable cam gear (AEM, Fidanza, HKS, OBX, ATS). Any cam gear kit for 3SGTE will fit.

-XS Power SSAC ST205 manifold/downpipe used with a ST205 turbo will convert the one-piece ST215 manifold/turbo to a nicely upgradeable ST205 Ct20b turbo kit. You can add to this a t3/t4 adaptor and you will be able to use a t3/t4 turbo (like I did on my ST215 swap)

-Pistons, rods, crankshaft are all the same for ST205 and ST215

-The injectors are the same as the ST205 one, so, if there is a 3rd gen fuel system available, it will fit the ST215 too.

-The exhaust camshaft is the same as the ST205 one. So an HKS 264/272 exhaust camshaft will bolt on. For the intake, I don't know if the HKS one would fit. Next year, when money will allow it, I'll buy a HKS264/264 camshaft kit and I'll know if the intake camshaft fit or not.

-You can remove the top ATA intercooler and add a FMIC as easy as any other 3SGTE.

The things that need heavy custom work is the ECU/wiring harness, ignition component (because of coil-on-plug). In my case, I used a Megasquirt II ECU with Ford EDIS wastespark ignition system and everything works nicely.

The other aftermarket parts like BOV, wastegate, air intake, boost controller etc, can be fitted easily like on any other 3SGTE engine.

The alternator can be replaced with one from any 5SFE or 3SGTE, along with the a/c compressor and the p/s pump (though the 4th gen p/s pump uses an electronic sending unit for the idle-up).

Bear in mind that the 4th gen injectors are also high-impedance, and no resistor pack is used.
-pistons
-connecting rods
-crankshaft
-exhaust camshaft
-cam gears
-timing belt
-water pump
-Intake manifold (bolt pattern are the same)
-fuel rail and injectors from ST215 are 540cc and top feed, so they have the same output rating as gen3, but they are top feed instead of side-feed(gen3)
-exhaust manifold (same bolt pattern)(but the 4th gen exhaust manifold is casted with the turbine housing)
-MAT sensor (manifold air temp)
-MAP sensor
-crank pulley
-oil pans
-oil pickup system
-knock sensor
-ac compressor
-alternator (5sfe as well)


EDIT: i recently found out that the timing belt you would get from a toyota dealership would be different this means that the gen 2 3s (usdm) timing belt would be off by one tooth. if thats no big deal to you go for it!

This post has been edited by easternpiro1: Feb 24, 2011 - 5:03 PM

[3WayStunna]

Well no worries hopefully i wont be starting any kind of pissing contest. All in all, like you said both are great engines from the get go, and considering what must USDM celica's start with, they are well worth the money for those wanting a "bolt on" turbo swap.

But in terms of holding up 500-600 horsepower i was wondering which is the most capable. Im talking in regards to the somewhat known failure in the block, where it develops stress cracking along the number 2/3 cylinders i believe. They say it has something to do with cooling within the water jacket and such, and how poor it is in that one area. I have also heard that this only applies to the blocks made within certain years (94-late 95) but it continues to it happen with blocks beyond those years. Was wondering if the caldina blocks, most of which are made after 2000 have that problem as well.

So after all just wrote about the 3rd gens is it more myth and rumor than truth...and if true, is is it true about the 4th gen blocks as well....Guess ill be waiting for some input by the 3sgte guru's lol...

Btw, i wish i could provide some sources for my info, but it seems to be everywhere on the net...so....

[lagos]

Well no worries hopefully i wont be starting any kind of pissing contest. All in all, like you said both are great engines from the get go, and considering what must USDM celica's start with, they are well worth the money for those wanting a "bolt on" turbo swap.

But in terms of holding up 500-600 horsepower i was wondering which is the most capable. Im talking in regards to the somewhat known failure in the block, where it develops stress cracking along the number 2/3 cylinders i believe. They say it has something to do with cooling within the water jacket and such, and how poor it is in that one area. I have also heard that this only applies to the blocks made within certain years (94-late 95) but it continues to it happen with blocks beyond those years. Was wondering if the caldina blocks, most of which are made after 2000 have that problem as well.

So after all just wrote about the 3rd gens is it more myth and rumor than truth...and if true, is is it true about the 4th gen blocks as well....Guess ill be waiting for some input by the 3sgte guru's lol...

Btw, i wish i could provide some sources for my info, but it seems to be everywhere on the net...so....

Like you said, its all mostly a myth. You can blow a headgasket, or a rod long before you can crack a block. In fact that that type of horse power, anything is possible.

But to answer your question, its hard to say what block is better or worse, but I can tell you that the guys that are serious about that kind of power normally build their engine with a 98+ 5sfe block as those have been proven to be pretty strong.