Installing 4AGZE in AE86

[Knudsen]

Anyone on the board who have done this?

I know that its not plug´n´play. A guy here in Denmark can modify the original ECU to run the GZE. I can make all the brackets and plumbing myself. Im know that the fuelpump isnt large enough, but what more is there to come? Which problems could i expect?

Would be great with some real life experiences with such a project!

[nmwisima]

You can always read my project thread :wink:

Unfortunatelly I havent installed it myself but I can tell you some things:

1) Most important is to fina a late spec GZE with map sensor. Its not only the -theoritically- produced 170 ps, its the semi forged pistons and internals!!

2) Instalation is quite easy -at least easier than the 20V.
3) My guess is that you should go for the gze ECU. The ECU goes with the engine, not with the car... If you do that you will have to custom made the wiring wghich is quite a trouble.
4) I strongly suggest that you find someone to do the transplant, that has DONE IT AGAIN IN THE PAST.

5) With the map sensored engine expect real 130 ps @ your rear wheels. ONLY!

6) Fuel consumption will go up, but i guess you know that...
7) Compressor is engaged with a hydraulic clutch, which is quite good thing. You can press the gas pedal progressively and compressor will stay off untill even 4.900 rpm!
gze has good torque between idle to 2.500 rpm, very good from there till 4.500, but pretty much dies from there...
9) You can get really easy PS, by closing the stock blow-off valve and installing a new crankshaft pulley!
10) You will defo need a new clutch kit
11) You will defo need a new fuel pump. Stock age pump is 125 litres per hour, you will need to find something around 190 lph. If you have money to spent, go for a Walbro HiPressure 250 lph. Pretty good and less expensive solutions are pumps from: EVO, WRX, STi, MK2 Supra, MK2+MK3 RX-7's.
12) You can use the stock gze intercooler, but defo go for a front mount instalation. Stock i/c has both in/out at the same side. Install it so in/out is at the left side -as you look the car. This way you ll have smaller lenght piping and you ll be far away from the hot exhaust manifold.
13) You can use larger i/c's if you want by CelicaSupra or Mitsubishi Evo, but you ll have more lag.
14) It's a good idea to install an adjustable fuel pressure regulator. Set him at 2,5 bar at idle. Dont worry about injectors. If they are clean they deliver 365 cc of fuel per minute each, so they re good for up to 400 ps.

Thats all that come to my mind right now. Any questions feel free to ask :wink:

[Knudsen]

Thanks for the info!

The stock 4AGE ecu can be modified to run the gze. Alot of people here in DK drives with that setup and alot of them puts out more power than with the original gze ecu.

Wether i get the new or the old gze, is not entirely up to me.
I have talked to Denmark (Skassa) whos a friend of mine. He is helping me out with the swap if theres something i cant figure out (im sure theres something)

[nmwisima]

No, no, dont do that mistake. Better wait and get the one with the map sensor. Dont u see, everything in it is semi-forged. Dont do that mistake and go for the early versions. That's my opinion.

[Knudsen]

I dont think i have the option of choosing. If everything succedes, we are importing a container full of engines from Malaysia. Im not sure yet if i can say "I WANT" ... Expecialy at those prices

[nmwisima]

What prices???

[Knudsen]

Nothing is sure yet, it all depends on how many people ordering, shipping ect. But about 1/3 of the price in DK.

Its Skassa who is the "headman" in this project

[Denmark]

The GZE engines will all be map,As they are from Japan,


The internals are the same in the late model GZE eighter 165hp or 170hp,
The only diff is the pistons are coated a bit lower on the 170hp version,
they are both 8,9:1 compression
There is also a map 8,0:1 compression,and that can take even more boost if your running turbo on it.

Regards,
Skassa

[Denmark]

And you can´t run 400hp on 365cc injectors,
If you can , hten it must be the most optimistik dyno i have ever heard of :wink:


regards,
Skassa

[NoHachi]

400hp is more like 800c/min..maybe 600 if you are willing to risk running at 100% dutycycle (handgrenade mode) .