7afte or 4agze? Options

[hashmaster52]

ok. i have an st and i dont have the $ or skills to do the 3s, so i want to either swap in a 4agze or turbo my 7a. i just wanted everyones input or opinions on wut to do. also, would a 4agze swap have the same hp as a 7afte? thx.

This post has been edited by hashmaster52: Sep 3, 2006 - 7:24 PM

[uberschall]

7afte is going to be as much work or more (rebuilt bottom end, custom header/downpipe, piping for tmic or fmic, a/f management, oil and water lines, etc.) than a 4agze. there is a good amount of aftermarket support for the 4a, and you'll probably get more reliable hp out of it.

as for hp, how close the numbers would be depends on too many turbo variables (what kind, boost pressure, eng managment, etc) to say. if you were to go big and run 9-10 lbs you could put up big numbers, but you'll need a huge amount of other engine upgrades too.

i vote 4agze.

[nik]

7afte is going to be as much work or more (rebuilt bottom end, custom header/downpipe, piping for tmic or fmic, a/f management, oil and water lines, etc.) than a 4agze. there is a good amount of aftermarket support for the 4a, and you'll probably get more reliable hp out of it.

as for hp, how close the numbers would be depends on too many turbo variables (what kind, boost pressure, eng managment, etc) to say. if you were to go big and run 9-10 lbs you could put up big numbers, but you'll need a huge amount of other engine upgrades too.

i vote 4agze.

ok doing a 7afte is no where near as hard a a full swap

for one you can run stock internals on 7afe and boost go look at the how to sections is covers a 7afte build you are right on the fact that the 4agze is more reiable for boost application but thats exactly what it was built for.

ive done the 7afte and a 7agte builds

in the end it comes down to your hp goals and what the car is used for track,drag or just DD

[ExSane]

7afte is going to be as much work or more (rebuilt bottom end, custom header/downpipe, piping for tmic or fmic, a/f management, oil and water lines, etc.) than a 4agze. there is a good amount of aftermarket support for the 4a, and you'll probably get more reliable hp out of it.

as for hp, how close the numbers would be depends on too many turbo variables (what kind, boost pressure, eng managment, etc) to say. if you were to go big and run 9-10 lbs you could put up big numbers, but you'll need a huge amount of other engine upgrades too.

i vote 4agze.

ok doing a 7afte is no where near as hard a a full swap

for one you can run stock internals on 7afe and boost go look at the how to sections is covers a 7afte build you are right on the fact that the 4agze is more reiable for boost application but thats exactly what it was built for.

ive done the 7afte and a 7agte builds

in the end it comes down to your hp goals and what the car is used for track,drag or just DD

So Nik, can I run a custom built turbo setup for my 7AFE without changing out the pistons? I would love to add the Venom Fuel Pump and Venom Fuel Injectors as well as the Venom 400 with the turbo. I will also be using a 4AGE turbo header from ebay and running that with a t3/t4 turbo. Hhahahahah.

[FallenHero]

7afte is going to be as much work or more (rebuilt bottom end, custom header/downpipe, piping for tmic or fmic, a/f management, oil and water lines, etc.) than a 4agze. there is a good amount of aftermarket support for the 4a, and you'll probably get more reliable hp out of it.

as for hp, how close the numbers would be depends on too many turbo variables (what kind, boost pressure, eng managment, etc) to say. if you were to go big and run 9-10 lbs you could put up big numbers, but you'll need a huge amount of other engine upgrades too.

i vote 4agze.

ok doing a 7afte is no where near as hard a a full swap

for one you can run stock internals on 7afe and boost go look at the how to sections is covers a 7afte build you are right on the fact that the 4agze is more reiable for boost application but thats exactly what it was built for.

ive done the 7afte and a 7agte builds

in the end it comes down to your hp goals and what the car is used for track,drag or just DD

So Nik, can I run a custom built turbo setup for my 7AFE without changing out the pistons? I would love to add the Venom Fuel Pump and Venom Fuel Injectors as well as the Venom 400 with the turbo. I will also be using a 4AGE turbo header from ebay and running that with a t3/t4 turbo. Hhahahahah.

Too much E-bay.

In terms of manifold, do what you wish. I personally will be running a log style unit.

T3\t4= too big for a 7afe. T3 is ok.

Most people run 8-9 psi on a stock 7a,,, which is all I would reccomend for a 139k mile 7a. with a fresh 7a, however, I hear 11 psi is streetable.

get a walbro supra fuel pump= just as good if not better and cheaper.

There are lots of injectors out there to use, the venom are the most expensive

The venom 400 unit is totally useless. get a FMU like a greddy unit or a apexi SAFC.

*** I also say you need a wide band 02 set up to tune the engine, to do otherwise is reckless ***

[OOBE]

Too much E-bay.

In terms of manifold, do what you wish. I personally will be running a log style unit.

T3\t4= too big for a 7afe. T3 is ok.

Most people run 8-9 psi on a stock 7a,,, which is all I would reccomend for a 139k mile 7a. with a fresh 7a, however, I hear 11 psi is streetable.

get a walbro supra fuel pump= just as good if not better and cheaper.

There are lots of injectors out there to use, the venom are the most expensive

The venom 400 unit is totally useless. get a FMU like a greddy unit or a apexi SAFC.

*** I also say you need a wide band 02 set up to tune the engine, to do otherwise is reckless ***


Have you run a T3/TO4B (or E) in a 7A-FE to get to that conclusion? I have and both turbos spooled-up just fine and felt right at home with this crappy econo-engine. I am running 15 PSI on stock internals and as much as I try to break this engine, it won't happen...with turbo MX-6 injectors and a Walbro 255lph...and NO fuel management or tuning of any kind. People need to have experience on their own before just randomly spouting mis-information. Does anyone remember the old "7A-FE won't hold more than 7 PSI?" myth a few years ago when only two or three cats and me from celica.net were starting to mess with the 7A-FTE? LOL.


Oh, this T3/TO4B is too damn big for my 7A-FE.
http://media.putfile.com/Celica-Boosting-H...ega-Flow-Intake

If it's too big, how come it boosts 5 PSI by me just caressing the gas pedal with my foot? I was doing there what? Like 15-20 MPH? Hmmm.