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Discussion Starter #1
Can the 4afe engine be made turbo? I have a 90 sedan std, and i know i can swap a GTS engine, but also had the idea of making it turbo. I was thinking a small turbo, what do i need to modify? Can anyone give me some advice, i don;t have much money to spend, thats why i was thinking on a small turbine and also i want this car to run solo1 (circuit) so i don't need to much power.
 

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Eclipse GSX
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how much miles dose your motor have?? you should think of doing a rebuild if your motor have a lot of miles. or just have it rebuilded with better stuff. you can use the pistons from the 4agze motor since it is a superchaged motor
 

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^^you also have to make sure you have the cylinders bored to FIT the 4agze pistons..also. i have heard that the intake plenum will not hold boost that great on a 4afe..i have a 4afe and turboing it would make a great little car..i would say maybe a T25 turbo. build the motor up a little bit..and yea..have it rebuilt
 

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engineer in training
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1,586 Posts
go on ebay and look up IHI turbos, they make great turbos for small engines. As far as the intake plenum not holding boost I don't see why it wouldn't and I haven't had any problems out of mine yet.

With a cheapie kit you will end up spending around $1300 and get maybe 30 horsepower more out of the engine keeping it daily drivable, maybe more if you wanted to push the engine.

With a good kit you could really start to open the 4afe up, you would need turbo, manifold, intercooler, fuel pump, fuel pressure regulator, injectors, and I would recommend water injection, and then some way to tune that isnt a SAFC or SAFC2. The tuning is key to keeping a small displacement NA-t engine alive. Go with a greddy e-manage with ignition harness and injection harness, or go look up a perfect power SMT-6 or -7 unit which will do everything the emanage can do and more.

I cant really give you a price estimate, but its not just about cost, don't expect to be able to slap a turbo on your daily driver and go in a day.
 

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4AFESPEED
93 Geo Prizm
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269 Posts
a company makes a complete turbo kit for the 4afe, it retails around 1500 w/out intercooler and 2500 with the intercooled system.
 

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Eclipse GSX
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you are going to spend a lot of money for the greddy E-Manage and on top of that it is still a piggy back ecu might as well save your money and get the APEXI SAFC2. By the time your done with the E-manage you could have gotten a full stand-alone ECU.
 

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95 prizm
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89 Posts
TheOtherCarolla said:
a company makes a complete turbo kit for the 4afe, it retails around 1500 w/out intercooler and 2500 with the intercooled system.
Here is just one of the site I had found when I was searching for turbo kits for my car but most of the sites are the same as TheOtherCarolla said they make 2 kits one comes with an intercooler and a blow off valve and the other doesnt.

http://www.importperformanceparts.net/imports/turbospec_toyota.html

http://www.turbospecialties-race.com/toyota/TC2001s.asp $1599

http://www.turbospecialties-race.com/toyota/TC2001e.asp $2349
 

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engineer in training
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1,586 Posts
SAFC2 = crap to rune with and waste of money. Slap an SAFC on a Honda or some shit and think it makes you faster :lol:

For a NA-t car it wont let you do crap with your fuel curve, the ecu is constantly fighting everything you do to try and maintain fuel trims for a NA car and the SAFC is not capable of combating this. You need at least an e-manage, Ive been there.
 

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1988 Corolla SR-5
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Wouldn't a 4A-GE 20V swap be cheaper and easier to tune and maintain?
 

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1988 Corolla SR-5
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Gotcha. Just wondering.
What kind of power could be expected from a turbo 4A-FE, nothing extreme, just a basic turbo setup with mostly stock internals.
 

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The Return of the Red Coupe
2010 RAV4 V6
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then his motor will go putt putt.. BANG! :D
 

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1988 Corolla SR-5
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Flashmn said:
I'm expecting 250hp give or take a few.
WOW! That much?
Will that maintained driveability and reliability? I mean for a daily driver.
 

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1988 Corolla SR-5
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That's pretty good!
 
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