4age in a 86 tercel with a 6 spd

dieselguy · Post by **dieselguy** » Sat Nov 06, 2004 9:49 pm

for 600$ I just bought a 86 SR5 with a dead motor ...it has 171,000 km on it and is quite good shape ...i'm getting a 4age from a 89 GTS from a buddy for for a 100$ ....what all will i need to do to swap it in ...and can the 6spd take the 115hp of the 4age? ...anyone know of a RWD intake so i don't have to modify mine? ...i hear i'll have to modify rad hoses ...any other suprises? ...i'm near Vancouver BC

warbstrd · Post by **warbstrd** » Sun Nov 07, 2004 9:19 am

if im not mistaken the sr5 has a 4ac engine not a 4age engine. if you want to keep the EFI on the 4age you need the wiring harness. i dont know what use you buying the sr5 serves??????

russkiypenguin1 · Post by **russkiypenguin1** » Mon Nov 08, 2004 2:04 am

Isn't he saying that the 89' Corolla has the 4AGE? Or am I missing something?

Gasoline Fumes · Post by **Gasoline Fumes** » Mon Nov 08, 2004 2:04 am

I think he means he bought an SR5 Tercel.

warbstrd · Post by **warbstrd** » Mon Nov 08, 2004 9:12 am

sorry, my bad, read it wrong...
thought he bought an 86 corolla sr5

20vtercel · Post by **20vtercel** » Fri Dec 03, 2004 11:44 am

you'll need a lot of time and patience. It's actually really easy. All the wiring is self contained within the ECU.

you can tap into the fuel line at the rear of the car and put in a external fuel pump. I used one off of a 200sx turbo.

Other than that...the mounts and brakets will swap over. you will have to purchse some longer bolts and make some backspacers for the a/c and alternator brakcets. The p/s bracket bolts right on.

If you plan on using the tranny from the terc you'll need to re-index the 3a flywheel with the new 8-bolt pattern so you can use it in the stock bellhousing. This is the easiest way.

Next is the exhaust manifold/downpipe. It is on the opposite side of the head. If you are using the stock tranny, you'll need to make a header or manifold that has a forward dump so that the exhaust can come down and go under the car before the x-member. If not, you'll cook your oild filter guts and your starter solenoid.

On the otherhand, if you choose to use the tranny from an AE86, then you have to move the f/e of the corolla into the terc and use the rear disc rear end. It bolts in. An '89 is transversley set so no parts can be used other than the periferals. tranny/mounts/lines can all be thrown away and new ones must be fabbed (except motor mounts).

If this is an AFM engine, then the AFM must go under the passenger fender or it will cook with the heat of the bigger engine in the smaller engine compartment. If it is a MAP engine then be sure to do a FWI.

The intake on a redtop is placed rearward. it will have to be severed and rewelded 180* to its current location.

Other than that, new belts will have to be saut. Bigger fuel lines will be a must if you plan on modifying the engine. With the engine out, now is a good time to do some cleaning!!! it makes life easier!!

GTSSportCoupe · Post by **GTSSportCoupe** » Fri Dec 03, 2004 12:27 pm

20vtercel wrote: you'll need a lot of time and patience. It's actually really easy. All the wiring is self contained within the ECU.

you can tap into the fuel line at the rear of the car and put in a external fuel pump. I used one off of a 200sx turbo.

Other than that...the mounts and brakets will swap over. you will have to purchse some longer bolts and make some backspacers for the a/c and alternator brakcets. The p/s bracket bolts right on.

If you plan on using the tranny from the terc you'll need to re-index the 3a flywheel with the new 8-bolt pattern so you can use it in the stock bellhousing. This is the easiest way.

Next is the exhaust manifold/downpipe. It is on the opposite side of the head. If you are using the stock tranny, you'll need to make a header or manifold that has a forward dump so that the exhaust can come down and go under the car before the x-member. If not, you'll cook your oild filter guts and your starter solenoid.

On the otherhand, if you choose to use the tranny from an AE86, then you have to move the f/e of the corolla into the terc and use the rear disc rear end. It bolts in. An '89 is transversley set so no parts can be used other than the periferals. tranny/mounts/lines can all be thrown away and new ones must be fabbed (except motor mounts).

If this is an AFM engine, then the AFM must go under the passenger fender or it will cook with the heat of the bigger engine in the smaller engine compartment. If it is a MAP engine then be sure to do a FWI.

The intake on a redtop is placed rearward. it will have to be severed and rewelded 180* to its current location.

Other than that, new belts will have to be saut. Bigger fuel lines will be a must if you plan on modifying the engine. With the engine out, now is a good time to do some cleaning!!! it makes life easier!!

Good info!

Couple questions: How did you deal with the distributor on the back of the 20V head? Did it fit ok between the back of the head and the firewall? Also, how did you deal with the water outlet on the back of the head? (Did you just run piping around the exhaust side of the engine up to the rad?)

dieselguy · Post by **dieselguy** » Mon Dec 06, 2004 11:51 am

sorry been gone a bit ...ok to clairify ...i have a 86 tercel 4wd SR5 with a 6spd ...i got the 4 age and it's a silvertop with blue letters ...so my intake sucks the right way (front) ...i have the complete harness (almost) ...one bunch of wires from the ecu was cut (bout 6in from plug) ...this it what would go to the ignition/harness under dash i assume ...anyone have a wiring diagram for it? ...also i just got a auto flywheel with it ...i heard that the 4age clutch won't fit in the 6 spd housing anyways with out clearancing ...will the clutch from the 3a bolt up to the 4age? ...i really would like to use the 4age to handle the extra power i'm sure i could pick one up ...but don't want to have to buy then find out it dosent work ...thanx for the info 20vtercel ...any more tips will help

warbstrd · Post by **warbstrd** » Tue Dec 14, 2004 6:08 pm

If this is an AFM engine, then the AFM must go under the passenger fender or it will cook with the heat of the bigger engine in the smaller engine compartment. If it is a MAP engine then be sure to do a FWI.

how can you tell which engine it is and what does FWI mean?

dieselguy · Post by **dieselguy** » Tue Dec 21, 2004 7:15 pm

hmmm not sure either ...x-mas has kinda put my swap on hold ...will keep everyone posted

20vtercel · Post by **20vtercel** » Thu Dec 23, 2004 9:54 pm

GTSSportCoupe wrote: Couple questions: How did you deal with the distributor on the back of the 20V head? Did it fit ok between the back of the head and the firewall? Also, how did you deal with the water outlet on the back of the head? (Did you just run piping around the exhaust side of the engine up to the rad?)

Distributor is not a problem what so ever!!!

I made my own water jacket out of some 1/4 brass plate, couple hydrolic fittings and a brass drain from the sink (sorry dear gotta have it :rolleyes: )

Did you know that a thermostat will fit snuggly and seal between the brass drain and the collar nut with 2 o-rings??? works slick if you ask me. Even if you don't it still works slick!!!