4AGTE in AW11

[Zips4]

Ive looked around this board and havent found any information about any one doing this. Has any one?,can you give me a link!. going to get one latter today,and send it to the shop soon. Whats worth it whats not? How big of a pain in the a@s is it to get a turbo in that space?? not to mention the intake inercooler and the bells a whistles?
Thx!

[Papo J]

You're going to get what and send it to the shop? A MK1 or an engine, the 4A-GTE was never built by Toyota, in case you didn't know that. I built a GTE and everything fits just fine, there is room back there for a fairly big size turbo. There are a few GTEs running around with DSM 16Gs, big and small.

[Zips4]

I wanted to swap a 4age with a 4agte. If thats doable???? The Block and head look the same as the 4age. And the block is goin to the Shop.

[Papo J]

There is no engine called 4A-GTE, a GTE is a 4A-GE (NA) or 4A-GZE (supercharged)engine with a turbo installed. What I'm trying to say is that you won't find a gte engine unless someone is selling you a turbo kit which includes an engine. Now, the engine in a stock SC MR2 is a 4A-GZE if that's what you're refering to.

[Zips4]

Well The motor came out of an 86 coralla. So you telling me that I got a 4AGZE for $50!!!!???!! I did Tear it down last night and it all looked good. Can you tell its a ze buy the crank? or pistons? If its a 4agze There no real need to pour a new crank rods pistons in to. my only goal is trying to pump out 150hp out any way.

[Papo J]

There were no GZE engines in 86, those didn't come out until 88 in the states and maybe a year earlier overseas so of it's the stock 86 engine it is not a GZE. The GZE block has a boss for a knock sensor on the upper edge of the block between the #3 and #4 cylinders on the intake side and the pistons have a concave top and not a dome or raised area. A stock but well built AGE can and will make 150 hp with about 6-7psi with proper fueling and timing control. But yes, a stock GZE engine will be much more reliable under boost but just like the AGE will require proper tuning.

[Zips4]

So more than likely its a 4age that i got? Car faxs pulls it up as a 4agte out of a 86 corlla. Do you know if they ever put a turbo on that year of corlla? Kinda New to the Whole 4banger thing Only had the Mr2 for 3 years now. Its got a vary nice ticking in the lower end. So i picked this motor up the redo. Im just trying to find out what one it is?! Thx.

[Papo J]

Neither the first generation MR2 nor the corollas were ever offered with a turbo. You probably just got a 4A-GE. Now, the ticking sound could be just the TVIS plate or a cracked exhaust manifold (around the #4 runner) which is very common on the early MR2, if it's not engine knock the engine should be fine.

[Zips4]

Ya but the whole Low oil pressure is what i dont trust. Ive had it for 3years now as the daily driver. Id like to give it a little more bang for the buck. Its going to be my winter project. For now , So did the Crolla Have a 4age in it at one time ?? And was it the same block as the one the MR2 got in its day??

[Papo J]

The corolla had the exact same engine as the MR2 except for the intake manifold I think. How low is the oil pressure?

[Zips4]

Oil pressure gose half way but no matter RPM it stays the same place thats also runin allmost pure motor honey. Took it for a drive a little bit ago seems to tick under load more than nuteral. Still tick Badly no matter what above 2k. The exaust is cracked on #4. That might be it. But still want a new motor for it seeing as the cluch is gone. Id rather put it up for the winter and have a new running gear ready for next summer any way. I mean the car was free and all ive got into it so far is around $800 for a used motor and shocks. That motor lasted 3 years! I got it with 170k on it lol. So any way its got to be a stock 4age hu. I hear/read that the cranks are good to about 200hp Can i realy trust that??? The one I pulled out looks nice no bad wear and tear. Ive put aside around $2k for the motor and tranny to be redone. whats the most bang for the buck? What works what dosnt ? Still reading post here, There a lot of info to read though ya know.
Thx

[Timon]

In regards to a 4AGZE vs a 4AGTE:

Originally Posted by Wiki

The 4A-GZE (produced in various forms from 1986 through 1995) was the supercharged version. Based on the same block and head, the 4A-GZE was equipped with a roots-type supercharger and therefore the compression ratio, valve timing and ports were modified. It was used in the supercharged AW11 Toyota MR2, rated at 145 hp (108 kW) and 140 ft·lbf (190 N·m). Later versions of this engine are rated 165 hp (127 kW) and 155 ft·lbf (210 N·m) for the AE92 and AE101 Corolla.

These engines are also popular for a turbo conversion, as many parts do not need to be modified to support the extra boost.

The 4AGZE was also in some Corollas, and so was the 4AGE (N/A). To make a 4AGTE you will either have to build up a 4AGE, including all new internals to support boost (you might be able to pull 3 psi out of a stock 4AGE safely). However you're better off starting with the 4AGZE and removing the supercharger and putting on a turbo - doing this will save you both time and money.

The most bang for your buck varies between two things:

1. Swap in a 4AGE 20 valve from the later generation Corollas/Levin/Trueno. This engine is said to push 160, but most dynos only show average of about high 140s.

2. Swap in 4AGZE motor and change out the supercharger pulley, which does a lot for low end torque, but I can't remember what the exact HP rating is with the upgraded pulley.

By far the cheapest option is to stay with your 4AGE - but where is the fun in that?

[Zips4]

Soo can any one tell me the stock specs on the crank of a 4age & 4agze????? That would tell me which one ive got?? Ive got the specs of the 4agte...