Outer Limits 4x4 Board

Has anyone thaught about doing a 4AFE engine swap (same block as the 4AGE but narrow head twincam) it should be the same as a 4AGE in terms of mounting it due to same block but there is supposed to be more torque down low instead of all top end in the 4AGE and these engines can be gotten very cheap as most people want the go fast 4AGE to bolt in to replace these engines any one got anything to say for or against this idea

Yes the FE will require the same mounting. They have similar low torque figures to the GE so your basically loosing the top end power over a GE. As you said should be a cheaper conversion seeing you could find a local FE cheap.

Personally having the 100kw GE I still dont have enough power.

Bazooka wrote:Personally having the 100kw GE I still dont have enough power.

You sound pretty greedy, 100kw is heaps of power, i wish i had near that much

You can never be to greedy

but once you hit 100kw maybe you should look at the gearing

Santos wrote:You can never be to greedy

but once you hit 100kw maybe you should look at the gearing

Once you hit 100kw you need to look at strengthening your drivetrain. Im on my 3rd rear diff, 2nd transfer case and seem to replace uni joints quite often which it needs another right now.

ok what are the 4AGE's/4AFE's like with an auto behind them? Does anyone have experience with auto's behind these motors?


And these damn thread hijackers!!!!!!! i dont know, what are we gonna do about them??

From what I know the only auto that will bolt straight to a 4A came out in the AE71 corolla. I think this is a 3 speed auto. What it goes like in a Sierra I wouldnt have a clue but its a dog in a corolla behind a 4A-C.

i have a ae71 auto with a 4age 100kw in mine ,and it go's real well

ok so what year is the ae71 corolla?

mines out of a 1984

i have been considering doing this conversion myself but into a 1l stockman. I believe with the 4afe you have to cut and shut or hammer into your firewall to fit the dizzy.

Correct - or mount the motor unacceptably far forward IMHO.

It's a shame - 4AFE's are everywhere. The difficulty in finding a RWD 4 speed automatic adds to the hassle - Gearing a 3 speed auto in a sierra is a challenge unless you run large tyres.

Steve.

But i believe their might be a solution.
I believe On the site AusZookers some one had the same problem. but with a GTI motor. The form is called GTI motor in a sierra. hope it helps with decision making.

There is a right angle Distributor drive for Mk1 GTi engines. I'm not aware of the same item for a 4AFE.

I was looking at a 4AGZE recently, and they have the Distributor mounted in the front left hand side of the head - a much better solution for a sierra.

Steve.

talk about a grave dig i forgot i even started this thread it was that long ago

Gwagensteve wrote: I was looking at a 4AGZE recently, and they have the Distributor mounted in the front left hand side of the head - a much better solution for a sierra.

Yep, runs off the exhaust cam.

While we're sort of on the topic, anyone know if a 4age dizzy is the same as a 4agze one? I can't see why there'd be a difference but you never know.

There are a number of ge gze dizzy combo's,which 1 do you have ??
are you running an aftermarket ecu ?, if so reusing your current dizzy will be the easiest option.
here's what i can remember
1) factory rwd & bigport 86kw ge (TVIS on the inlet manifold) dizzy has 2 pickups 1 i think the inner has a 24 or 36 tooth reluctor, the outer has a 4 tooth reluctor.

2) smallport ge also known as 100kw ge has dizzy with the same inner reluctor, the outer has a single tooth.
several different cap & rotor combo's (a whole other can of worms).

3) early gze also bigport or AFM (air fow meter) has a dizzy , I do not know which one off the top of my head but would be very surprised if it was different again to either of the above.

4) later gze known as map sensor gze smallport have cas(crank angle sensor) with no dizzy cap just a blank off plate,fits in the same location the internals are the same as the smallport ge.

5)20v are on the back of the head & probably the same pickup setup as the smallport there are at least 3 different 20v engines so i can't confirm

Drew wrote:There are a number of ge gze dizzy combo's,which 1 do you have ??
are you running an aftermarket ecu ?, if so reusing your current dizzy will be the easiest option.
here's what i can remember
1) factory rwd & bigport 86kw ge (TVIS on the inlet manifold) dizzy has 2 pickups 1 i think the inner has a 24 or 36 tooth reluctor, the outer has a 4 tooth reluctor.

2) smallport ge also known as 100kw ge has dizzy with the same inner reluctor, the outer has a single tooth.
several different cap & rotor combo's (a whole other can of worms).

3) early gze also bigport or AFM (air fow meter) has a dizzy , I do not know which one off the top of my head but would be very surprised if it was different again to either of the above.

4) later gze known as map sensor gze smallport have cas(crank angle sensor) with no dizzy cap just a blank off plate,fits in the same location the internals are the same as the smallport ge.

5)20v are on the back of the head & probably the same pickup setup as the smallport there are at least 3 different 20v engines so i can't confirm

The one in red is the engine I have. I bought it without a dizzy and was just hoping to be able to use one from a 4age as gze dizzy's are thin on the ground. It looks identical to my old bigport 16v 4age but yeah.

I've already bought like 3 starters trying to find one that fits and didn't want to go through the same shit for the dizzy.







Thanks for replying btw Drew.

Dizzy should fit ,my gze is a late smallport & has been running with a bigport ge dizzy for years.

also have ran 3 different types of starter with no dramas, not sure what has happened with yours ,what gearbox/bellhousing are you using??

Gwagensteve wrote:There is a right angle Distributor drive for Mk1 GTi engines. I'm not aware of the same item for a 4AFE.

I was looking at a 4AGZE recently, and they have the Distributor mounted in the front left hand side of the head - a much better solution for a sierra.

Steve.

To get around this in a mates 4age 20v conversion we fabbed up a rotor button mount to bolt to the front of the cam gear, then another mount for the dizzy cap. Still using the original dizzy shaft to run the cas. 15 plus days later at various tracks and no dramas

To get around this in a mates 4age 20v conversion we fabbed up a rotor button mount to bolt to the front of the cam gear, then another mount for the dizzy cap. Still using the original dizzy shaft to run the cas. 15 plus days later at various tracks and no dramas

very clever shakes any pics of this

Drew wrote:Dizzy should fit ,my gze is a late smallport & has been running with a bigport ge dizzy for years.

also have ran 3 different types of starter with no dramas, not sure what has happened with yours ,what gearbox/bellhousing are you using??

3spd auto.

My friend has a 100kw 4AGE in his garage that hes not using. (In Brisbane)

If you are interested in it PM me and I'll give u his mobile.

It's a 16v one shouldn't be too expensive.

Drew wrote:

To get around this in a mates 4age 20v conversion we fabbed up a rotor button mount to bolt to the front of the cam gear, then another mount for the dizzy cap. Still using the original dizzy shaft to run the cas. 15 plus days later at various tracks and no dramas

very clever shakes any pics of this

I lost them on my old phone. Couple of company's in the states do kits for this but the quality is very sub standard!!!

I'm not sure with the fe but on the fwd ge the water flow and thermostats are a pain unless you like remote thermostats and your intake getting hot water... electric water pump and some Welsh plug relocating fixed this.