4age rwd conversion

[rwd_mayhem]

the car: AE70 SE
donor car: AT160 bluetop tvis 4age celica 1986

im planning to put the 4age into my ae70, using the k40 and u? series diff (yes i know both of these will blow but i will replace them eventually) and various bits from the 3au, mounts etc.

ok i have searched this up and there are just a few wee things i want to clear up.

*the wiring - i really dont wanna pay someone a ridiculous amount of money to do this, i want to keep it efi and want to know from someone who has done it before, how hard is it and what are the key things that need to be done. or if its too much of a mish, could anyone hook me up with someone who'll do it cheap?

*fuel pump - can i use the celica one? where is it?

*fuel lines - will 1.5l 3au lines in the AE70 be sufficent to fuel the 4age?

*rwd intake - "Oil catch cans??? 4AGE + RWD intake + FWD throttle body = MUST HAVE CATCH CAN!!!" i stole that from another thread, is this true? what is a oil catch can? where and how to get it in?

*spigot bearing - You need a spigot bearing for the rear of the engine, true? how hard to get?

*water lines - i have a rwd water pump from the 3au which is new so i definatly wanna use it, is it easy enough to just modify the fwd water lines to get it going? also something about the thermostat housing?

*extractors - will coby extractors get in the way of the steering in my ae70?

[RS13]

Your AE70 isn't burgundy by chance? I keep seeing a really tidy one with Modgie-type mags in the Riccarton area, is that yours?

Wiring: Yes, it is possible to do it yourself, you'll need a wiring diagram for the AT160, and the AE70. Planning it makes it a lot easier as well, sitting down with both diagrams and working out what you do and don't need, and what you'll need to connect to the existing AE70 loom, this way you don't forget the small things, like the tach feed, gauges etc.. been there done that! hahaha. It took us a couple of days to do, you'll also need a decent multimeter, soldering iron, and a lot of spare wire. Don't forget you'll also need to get EVERYthing from the AT160, coil, resistor packs.

Not sure on the Celica fuel pump, we fitted an external off a Honda, made up a 12V relay feed, worked really well. From memory we also had to weld a fitting to the fuel tank to accept another line?

We got the fuel lines off the donor car, they were much wider than the AE70 lines, with gentle bending we got them to fit, you may want to try the same with the Celica ones to keep costs down! And no, the AE70 lines aren't sufficient for a 4AGE.

No idea on the catch can, we used factory rwd manifolds.

Spigot bearing, go to club4ag.com and try and get a part number, or maybe Mr Revhead could suggest something? Not hard to fit, just whack it in the rear of the crank with a bit of wood. I'm sure you only needed the spigot bearing if the motor was FWD? So I'd assume you'd need one?

Not sure about the 3A-U waterpump, we used 4AGE gear.

We had no problems fitting the motor/box with the AE70, I'm pretty sure it was rack'n'pinion. The AE70 came out with both rack'n'pinion and recirculating ball steering, I think with the recirculating ball you need to modify either the rack or engine/gearbox brackets.

Hope this helps. Further to this, I'd try Garagedori.com, those guys fiddle with these sorts of conversions often, so have a look there.

[AE85coupe]

If your car has steering box style steering i strongly reccomend find an AE70 or AE85 rack/crossmember/coloum to put in... because steering box = freaking crap

anyway, the celica fuel pump is an intank one so no you can't use it without doing some decent modification to make it work.. better to just get an inline pump, also ae70's have a fuel tank with no baffles, so it might be an idea to set up a surge tank.. otherwise you will lean out when you thrash round corners

oil catch can?? why? don't bother unless you want to be flashy

the 3a waterpump and lines should bolt straight on, making things easy water system wise

spigot bearings are cheap and easy to find, just ask for a ae86/at141 4age one

[Jebus]

As for the catch can, its because where the cam cover breather vents to is a gallery into the Inlet manifold, on a RWD manifold if you put a FWD throttle body on the gallery is on the opposite side, so your breather is fully blocked. It will take about 1 minutes driving and youll have the rear main blown completely out the back of the motor.

So if youre Captain Planet or enter motorsport race events run a catch can, otherwise run a pipe off it that drops onto the ground, otherwise itll drop oily shit all over your injector plugs etc.

For thermostat housings, get one of a FWD 3A, theyre inline and pretty compact, just block all the outlets on it, weld them up or the old bolt in pipe trick if youre a bit rangi and put that in your bottom hose.

[AE85coupe]

i've just got a wee k&n filter that sits on the breather hole, stops oil from flying everywhere, just have to clean it out every now and then

[rwd_mayhem]

if by burgundy you mean brown then yes it is, but its on standards and whitewalls not modgies.

where can i get wiring diagrams for both cars? club4ag is shittn out on my computer and wont let me do much.

recommend any places to get a fuel pump from? any brands? how much roughly?

why do you have to use a remote thermostat? why cant you use the 4age thermostat?

im not sure which type of steering i have, right after the firewall is some sort of cylinder thing, so im guessing recirculating ball? but the intake goes on that side?

also what clutch would i use? for a 4age onto k40, i might as well get a new one.

and can anyone recommend a place to get my intake manifold cut n shut?

[Jebus]

where can i get wiring diagrams for both cars? club4ag is shittn out on my computer and wont let me do much.

there as so many different kinds its near impossible to find a 100% accurate diagram for some ECU's, best way is to take the cover off the ECU, and by the pins on the circuit board its stamped saying what each pin is. Use the key off any old diagram to decyhpher it.

recommend any places to get a fuel pump from? any brands? how much roughly?

I run an Airtex, its a bolt in upgrade for a VL Turbo, so has meeeggaa flow approximately 3252544 times too much for my motor. Was around $300 with a very good trade discount.

why do you have to use a remote thermostat? why cant you use the 4age thermostat?

All the 4AGE ones that ive seen are bulky and I like most people didnt get one when I bought my motor.

also what clutch would i use? for a 4age onto k40, i might as well get a new one.

The K50 is 19 Spline with 190mm plate, normal 4AGE is 21 spline w/ 200mm plate so you have to use a 3A Plate with a 4AGE pressure plate. The plate is 10mm smaller than the flywheel, but doesnt matter as it still has heaps of clamping pressure from the 4AGE pressure plate so isnt noticably weaker at all.

and can anyone recommend a place to get my intake manifold cut n shut?

Send yours up or get one from Evil_Si, his work is tops and he does the best price around, or keep an eye out on trade me, they occasionally pop up, theres a RWD manifold on there now.

hope that helped

Edit: In fact maybe someone should FAQ this because im sure ive said these same things many a times now.

[AE85coupe]

I just used my local engineers to do the cut and shut for me

yeah definately need an FAQ for this

i've answered these questions a million times as well

4age into AE70/AE85 faq = good plan

[suberimakuri]

check out the 4AGE into AA60 carina article on our website... you may find some stuff relevant there... it was a few years ago so I can't remember it all.

[rwd_mayhem]

im not spending $300 on a fuel pump lol especially if its not necessary to pump that much.

[Jebus]

Thats up to you, you can get a POS second hand pump that has been run dry many a times for $100 off a VL commodore or something.

[rwd_mayhem]

why does it have to be off a dirty holden? can you not buy new ones for a 4age? supa cheap etc.

[AE85coupe]

everything that came standard with a 4age had intank fuel pumps if i remember correctly, so no you can't just "buy one for a 4age" just any old high pressure inline pump will do the trick, search around and you will find one

i know someone who used a TE71 inline pump to run a 4age, they are probably dirt cheap

As far as new inline high pressure pumps go, there is no such thing as a cheap one, trademe has bosch ones for about $150 i think, they would be the go

[rwd_mayhem]

ok, what would be the minimum pressure needed roughly? i meant supa cheap as in the store u know like repco etc.

[AE85coupe]

ok, what would be the minimum pressure needed roughly? i meant supa cheap as in the store u know like repco etc.

yep i knew what you meant, i think supercheap will sell you something bosch etc. as well, it will probably be cheaper to get one off trademe, im not sure of the pressure you need though, someone will know

[l1ttle_d3vil]

ive done this same conversion into a ke35, except with a t50 + hydraulic clutch. I also wired the whole lot up myself...well, with help from half of toyspeed too but I got there in the end; there were a lot of issues I had but i eventually worked through them.

im running a holden VL pump - doesn't matter if its off a dirty holden. it does the trick so Im happy with that. im running 10mm fuel lines from the tank to my engine and using the original feeder line as a return line. im not sure what lines your are at the moment though.
as for the pressure - it should be around 50psi I think. I've got all of this exact information sitting in my car though; i've got an entire folder full of pages and information that I printed off during my conversion.

whether the extractors will be in the way or not depends on how you mount the engine. I mounted my engine (stupidly) before I got the extractors, luckily they fitted in but only just. they're all different though, get your manifold/extractors all sorted and then do your engine mounts.

[crnkin]

-Grotty will make you a complete wiring loom

-Stock fuel pressure is 36-38psi

-Cressida fuel pumps are the go, also see grotty for this

-Local engineers are the go for cut and shut, or theyre are a few available for cheap at the moment, one is 95 bucks

thats about it yeah, less thinking more doing man!