carb to efi swap??? - Toyota Nation Forum : Toyota Car and Truck Forums

ae randz · 06-01-2006, 12:44 PM

hi guys,, i just have a question for you all... i hope youll be able to help me out with some answers.... here it goes.... can a 4af gen 1 carburated engine be fitted with an EFI inatake coming from a 4afe gen2 engine??.. im currently planning to take my carbie off and swap it up with the EFI intake for better fuel milage... what are the possible problems and adjusments do i have to observe,,,, or maybe is just bolt on and rewire for the ecu thing with out a problem ay all?? thanks in advance for much needed advice guys.. god bless

Flashmn · 06-01-2006, 01:30 PM

Nope the 2nd gen 4A-FE intake manifold WONT fit.
1st gen 4A-FE manifold will, but where would you put the injectors. I had the injector ports welded onto the manifold and an additional set machined into the head itself.
Imho with the price you're gonna pay for the manifold/injectors/fuel tank/fuel pump/regulator/ecu/sensors/wiring/time spent with problems. You're gonna fuel up many times with the carb.

ae randz · 06-01-2006, 02:02 PM

many thanks flashmn, for enlightening me.. i guess il give myself more time to contemplate,

***REN69*** · 06-01-2006, 03:56 PM

Just take out the 4AF and swap in a 4AFE.. better yet, why not go 4AGE? for the price you will pay, might as well go a little better.

micro214_kp61 · 06-01-2006, 04:26 PM

4A-GE sucks!!! go 4A-FE!!! right flashmn, wehehehe!

Flashmn · 06-01-2006, 04:43 PM

Ofcourse.. but dont forget the turbo!

Guido · 06-01-2006, 05:08 PM

Quote:

Originally Posted by Flashmn

Imho with the price you're gonna pay for the manifold/injectors/fuel tank/fuel pump/regulator/ecu/sensors/wiring/time spent with problems. You're gonna fuel up many times with the carb.

Absolutely!

I know some people that bought a motorcycle, insurance, equipment, etc. to save a few dollars at the gas pump. It'll probably take 20 years to break even.

freakinbox · 06-01-2006, 06:53 PM

nothing wrong with the 4af/4afe engines

I am a little curious to test out the 4afe though. See if I notice a huge difference or not.

but ren is right if your gonna do something like that the easiest way is to swap a 4afe and what is even easier is just get yourself a complete ae92 sr5 with a shit body that runs and use that as a donner. RUNS well is the key though lol. Or if you wanted to you could use that for all the stuff but the engine and tranny and buy another 4afe.

and how bad could your milage be? it's only a 40 liter tank and on 20 liters yesterday I did almost 300 km! and my carb isn't doin to well....

***REN69*** · 06-01-2006, 08:31 PM

Nothing wrong with the 4AFEs, the 4AF on the other side.. only use I can think for them is boat anchor!

freakinbox · 06-01-2006, 11:08 PM

I like my 4af so you can lick my balls

cuzman · 06-02-2006, 01:15 AM

Settle boys..lol
now why not go for a 7afe?..it'll be cheaper than a 4age and the wireing is closer as the alts and starter are in the same spot etc...
or if tight for money just put a 4afe head on with all the bits.....and re ring the bottom end in the chassis..dont forget the bearings etc

Flashmn · 06-02-2006, 01:58 AM

Now whats a 4A-FE head gonna do good on a 7A-FE cuz the heads are the same.

cuzman · 06-02-2006, 03:05 AM

i meant a whole 7afe......motor or get a 4afe efi head for his orig block
just to clear it up..sorry!

freakinbox · 06-02-2006, 08:58 AM

I was thinkin of doing that, grabbin the 90 head and shoving it on my 89, at the engine's different? or was 90 the start of the gen 2 4afe?

Flashmn · 06-02-2006, 12:12 PM

Quote:

I was thinkin of doing that, grabbin the 90 head and shoving it on my 89, at the engine's different? or was 90 the start of the gen 2 4afe?

Nope, same shit.

2nd gen 4A-FE was from 92-> sooo the first car to get it was E10 series.