4AGZE mystery pipes and throttle help

[Doylie]

Car - AE86

Motor - 4AGZE (the non-ae101 version)

Problem - I'm doing a 4AGZE conversion into my sprinter, to replace the 4AGE, and I have no idea what certain pipes on the engine are supposed to be connected to. Can you guys please shed some light on what I'm missing? Here are the things I don't know:



What are each of these three pipes/hoses supposed to connect to??

Here is a close up of each of them:



(also, am I missing something where the question mark is? is the TPS supposed to be there or something?)





Also, I have a couple of other issues I don't know how to deal with. This one:



My heater pipes coming through the firewall have been cut, as can be seen here:



So what am I supposed to do with the heater hose that comes out of the back of the block? Do I just re-route it some where? Block it off? I'm stumped..

The last issue is that I have no idea how I'm supposed to hook the throttle cable up to the throttle when it is mounted at the rear of the intake, and facing the opposite way.



Do I need to get a custom cable made up to get some extra length and then run the cable around and back to the throttle? Or is there some other solution that I'm overlooking?

Help on any of these questions would be awesome.

Thanks,
Mark

[Nikkojoe]

First pic, your sc outlet has been flipped upside down and welded. It's obvious 2 goes to 3, but the way its done is dumb. Instead of making cutting up and welding stuff or running a stupid hose for it, block both ends off and do the abv mod (which looks like its already been done in the pics). 1 Seems like brake booster hose.

2nd pic

? - for your Idle air controller, its missing. You will need it to idle properly (kinda).

pic 5
Goes to heater tap, but your aw11 outlet points into firewall so you need an ae92 gze/ge or later. (I have one here i can sell you minus the sensors)

Pic 6
Right outlet goes to heater tap, left goes to remote thermostat which you dont seem to have setup.

Check my 4agze developement thread in the ae86 members ride section (2nd or 3rd page), it will give you an idea how to setup the water.

Last pic, use ke70 throttle cable, its longer and suits this the best. HOWEVER, it doesn't have good adjustment on the thread because of how much cable the gze throttle body needs (you will know what i mean when you try it). To overcome this, slot out the bolt holes on the bracket to move it closer or further away to the throttle body.

[Doylie]

Thanks for the reply mate, appreciate it. A couple of questions though:

What is "the abv mod"?

Are the idle air controllers found only on GZEs? Or can I get one from somewhere else?


Thanks for that man. I'll check out your thread and see what I can fathom from it, but if I do need that outlet from a later model 4A then I'll definitely take it off your hands. Are you basically saying that the direction of the outlet points straight into the firewall, but if I got the outlet from another (later) 4A that it would have a right angle in it and point to the drivers side?


This went totally over my head, sorry man. Did you mean that I should manouver the throttle, by slotting the holes that it uses to bolt to the intake, so that it moves closer to the front of the car?? Cause that doesn't make sense in my head...

Thanks heaps for you reply mate, much appreciate it.

[Nikkojoe]

Google. However looking again at the pics, it probably needs to be done.

AFIAK 4agze only, however i remember something about 3sgte, although ive never seen one. Should be easy to find another (check my build thread which you may see a pic of it.)

Yes, correct. Although its not like the one in my build thread. The ae92 ones work on ae86s only cause the firewall in that spot has a larger gap, *e7*'s are not soo spacious so you would need to use an ae86 4age or ae82 4age one.

No, i'm talking about the bracket that holds the cable in place. Its bolted to the intake manifold seen in the last pic, in the middle

[Mr Awsome]

pic 2 where the questions mark is unbolt it, reuse the seal and put a plate over it.

pic 3 goes to pic 4 those can be joined up ill take a pic of mine for you

as nikkojoe said ke70 4k cables work a treat.

[Hen may possibly be a nut]

Nikkojoe is on the money on all counts.

1 - I think this in an aircon or PS idle-up feed. From memory I blocked it.

And yes your idle speed control valve (? in the same picture) is missing the top part which controls it. You can plate off the entire valve to get things going to start with. You'll either have to toe it to keep it going while cold or put up with a high idle when warm though.

Also with the throttle, you can use the stock AE86 cable if you take the mount off the throttle shaft and rotate it through 180deg. Now it "points" over toward the brake master and the stock cable reaches. You just need to make a mount to bolt the end of the outer cable to (I used two of the big bolts which hold the throttle body to the manifold to hold this in place).

Hen

[Tim.duncan]

im asuming by blocking off the by pass valve and doing the "ABV Mod" the sc now runs all the time? because the by pass valve can no longer by pass the air so it has to go threw the sc, in my mind this is just stupid it would mean worse fuel ecconmy when just driving around. plus my ze would hold 12-13 psi all the way to red line no worries. i never get why people change it?

[Mr Awsome]

air bypass valve acts as a blow of valve. the mod increases the boost to 12'ish psi. the ABV opens at 8psi limiting your boost.

[Hen may possibly be a nut]

Tim, with the ABV mod the SC doesn't need to run all the time. Air gets drawn through the SC even though it isn't being driven (easy to see in the engine bay, the belt and outer pulley is spinning fast, while the inner pulley connected to the SC spins slowly). May cause some losses or restriction in the intake, but only when off the throttle and the SC is off.

[Tim.duncan]

i was able to drive all the way to work with out the sc ever engaging, i just cant see that happening if the by pass valve is no longer able to open up and bypass the air the motor needs. once the manifold pressure drops below a certine pressure the sc then engages, in my mind this would happen very quickely if only relying on air coming threw the sc. sc tolerances are very tight so if any air was getting threw it would not be allot as soon as you try and accelerate the sc would have to engage because the manifold pressure would drop striaght away.

i have never done the abv mod so all this is speculation, at the same time my motor would run 12.5 psi all the way to 7,600 in 1st and 2nd then 13psi in third. yet if driving normally the sc would not engage giving me good fuel ecconomy on my daily comute to work.

from my experiance i would rather have it running the way mr toyota designed it, doylie if would would like to know how to set it up to run stock i can try and take some pics of my set up so you dont have to do the ABV mod, or do the mod its up to you.