4age 20v? - advice on it...  

ExodusDesign

depends what you want to do with it

less work for an sr20det?, depends what car its going into. obviously most toyota corollas, sprinters etc would be almost ready to dump a 20v straight into.

sr20det with basic mods you can run up to 12-15psi until you have to start looking at ECU, Fuel, Injectors etc.

4age 20v should be able to handle 7-8psi if you are strapping a turbo to the side of it. they are already quite a high compression motor though.

the_random_hero

Not really, compression is way too high.
Ermm you could, but then that's a bit silly.
I have no fucking idea what car it's going in, so I'm not even going to attempt to answer this.
Lots, dependant on your wallet
As above.

Also, try posting your threads in the right section from now on.

70XIN

I wouldn't run much more than 5psi on any of the 20V motors, due to the pistons (compression) alone

The block itself is exactly the same, from AE92 N/A & GZE, AE101 20V & GZE, and AE111

The crank is exactly the same on all of the above

The AE101 20V shares the same rods as its GZE variation

The only difference really (bottom-end-wise) is the pistons

4AGZE pistons/rings are worth $500 brand new from toyota.

Wadabingwadabong

CH_VRX

As Above...but in a nut shell, just in my humble opinion if you are after forced induction the SR20DET is going to equate to better bang for buck. A mate of mine has an ae101 with the silver-top 20 valve and he was quoted around $8000 by several reputable tuning shops to turbo his engine so he just decided to get as much power from the NA setup as his wallet could afford...If however you got some $$$ to spend and want something different it's possible to get up to around 220HP or so from the 20 valve 1.6 NA (if you get into serious engine tuning of course!). Back in the day of Group A racing there was a variant of the 20valve going around called the Atlantic 20 valve - Naturally aspirated 1.6 20 valve making around 240HP. Now THAT would be sweet.

CALIbrated

Work it N/A that motor is a beast.

ah the sound of quad throttles

iamhappy46

Best power output I seen from a 1.6L 20V is 263Hp@flywheel with some crazy ass rpm

CH_VRX

That is nuts! I'm guessing something like 11,000 RPM??

Reeve_AW11

the atlantic 20v didn't have a rev limiter, and drivers regularly took them to 10-12k rpm.

effing in-sane

to answer the post, if you want boost, buy a 4AGZE - its already got low comp pistons etc. If you buy a silver or blacktop NA, then you'll have to reverse engineer the whole thing, pull out the stock pistons and replace them with low comp. Its basically a whole heap of expensive work that you could avoid completely just by purchasing a 4AGZE and ripping the stock SC off and slapping on your turbo.

It really depends on your car mate, both engines have heaps of aftermarket support, heaps of spare parts laying around wrecking yards, and they have fairly comparable reliability, basically if you service them and take care of them (i.e. don't bounce it off the rev limiter etc etc) then both engines will run fine. This is why it depends on your car - if you've got a toyota, get the 4AGE, if you've got a nissan, get a sr20de/t. It'll be cheaper, because the engine mounts will probably be similar etc, and the mechanic won't have to redesign your engine bay for you. If you've got neither a toyota or a nissan, then sell your car and buy one of them - two best car makes for us guys who can't afford ferarris! (like me - AW11 all the way! japanese mid engine power! )

TTV8

the VVT in the 20V doesnt like boost.
thats why they never came supercharged.

BUT

there i have seen Turbo 20V engines, but its rare, i dont know what they do with the VVT.

maybe ask a V-TEC nut.

iamhappy46

The 4AGE 20V I saw was making that power at 10.7K rpm and the torque curve was flat enough to iron shirts on

You can bolt the 20V head onto the GZE block, then turbocharge that combo. Expensive option for the small gains in power. VVT improves throttle response a little but dont expect to make much more power than a standard 4AGZE engine with a turbo.