4AGZE inquiry

[blue TRD]

hi, just some questions regarding the 4AGZE engine.

1. how many generations/versions are there? as far as i know there are four.
2. what years did they come out and in what cars?
3. what are the general specs for each? (ex. HP, torque)


thanks so much!

[toyotaspeed90]

there are really only 3..... because I have yet to see a smallport 4agze with an AFM..... that being said, i am unsure if the rods on the early smallport found in the ae92 are the same as the rods found in the ae101 motors.....

let me explain a little..... the aw11 and early ae92 rods are the same as the smallport n/a rods.... large and beefy..... for fact, I know the ae101 rods are actually much thinner -- probably has different engineering (meaning not necessarily weaker, but....). So, I am unsure if the smallport ae92 rods are the same as the smallport ae101 rods. If so, then there are 3 variants, if not then there are 4 variants with the change being the rod sizes.







Here is a difference in rods/pistons..... left to right is:
bigport n/a 4age
smallport 4agze supercharged ae101
smallport n/a 4age ae92 (no such thing as ae101 smallport 16V)

so, it depends on what rods the ae92 smallport 4agze uses.....
The 3 basic versions:

aw11: 8.0:1, bigport head, AFM/Dizzy
early ae92: 8.0:1, bigport head, AFM/DLI
post aw11/early ae92: 8.9:1, smallport head, Map/DLI

Power on the early motors are estimated around 145hp
Power on the later motors (higher compression and they have a different pulley system increasing boost by 3psi): 165hp


my aw11 (came n/a) currently has an ae92 gze longblock with ae101 components..... the 101 motor gave way to a previous owner of the car (long story, I built it years ago and the car changed hands several times only to end up back in my driveway)... I'm using a C series transmission, and the thing is rediculously fast for being a stock longblock. The other day I took it to get gas (granted, was raining out) and couldn't get traction in 3rd gear at 30mph....

[Ghostyman]

That is why we love ya, toyotaspeed90.

[freakinbox]

that is interesting to know, that not only are the connecting rods lighter. But the pistons look like they will be lighter too.

[blue TRD]

thanks for the inputs.

seems the latest version of the 4agze is as strong as the 20V blacktop in terms of HP....

[toyotaspeed90]

Originally Posted by blue TRD

thanks for the inputs.

seems the latest version of the 4agze is as strong as the 20V blacktop in terms of HP....

blacktop does make good power.... but it lacks torque.... I don't have specific torque values.... but late 4agze vs the blacktop, the gze puts out quite a bit more power overall.

[SCT]

4AGZE

[freakinbox]

people who have or have had black tops say the power figure is false and they actually produce less.

[Blof-fan]

And they are right.

Last year we had 3 or 4 blacktops on the dyno at a dynoday from our club and the output varied from 122 to 136 whp (That would be about 140 to 156 hp at the crack) that's no were near the 165 hp Toyota tells us they should produce.

Sadly, we didn't have any GZE's there that day.

And if you want to know all the specifics for the GZE engines, I sugest you a have a look at this webpage:

http://www.club4ag.com/faq_and_tech_...-GZE_specs.htm

[blue TRD]

i wonder how strong the 4AGZE is when the supercharger is taken out and you run it NA...

[blue TRD]

Originally Posted by freakinbox

people who have or have had black tops say the power figure is false and they actually produce less.

makes you wonder why toyota created the 20v silver and black top to "replace" the 4AGZE...

i know the ST/BT engine is more sophisticated with the 5-valve per cylinder design, throttle bodies and VVT etc. but it doesn't make sense as a replacement if it is "weaker" than what is replacing (4AGZE).

maybe someone can enlighten us on this...

[RobMilkshakes]

Originally Posted by blue TRD

i wonder how strong the 4AGZE is when the supercharger is taken out and you run it NA...

It would be less powerful than a standard 4age, has a lower compression.

4age bigport~ 9.3:1

4agze~ 8.0:1-8.9:1

[toyotaspeed90]

it's not too bad... usually they actually are closer to the same power as an n/a bigport (smallport 4agze as n/a).... the smallport gze's will usually have less mileage meaning less c/r lost over time and they have a better head.

but no reason to run a gze in n/a form....

[RobMilkshakes]

true. It'd still be much better than what I'm currently running :/

I keep forgetting about the gzes with the smallport, I always just assume the bigport

[blue TRD]

Originally Posted by toyotaspeed90

it's not too bad... usually they actually are closer to the same power as an n/a bigport (smallport 4agze as n/a).... the smallport gze's will usually have less mileage meaning less c/r lost over time and they have a better head.

but no reason to run a gze in n/a form....

yep you're right. why take out the "Z"? hehe. it was just a theoritcal question.

i'm still wondering why the 20v engines are "less powerful" than the GZE if they were intended to replace it....