Engine upgrade for Ae86

[beeker]

If I was looking for a engine/tranny upgrade for my Targa competition AE86, what would be the recommendations.

I currently have a 4agze (from AE101 including OEM ECU) and T50. This is good and relaible, but simply lacks the HP to compete up front.

I would prefer a stock engine transplant, complete with OEM ECU to maintain maximum reliability/repair time.

thoughts please. I'm not up with engine codes, so mention the donar car to help me out.

also, lightwight is important.

[bad20v]

Why dont you turbo your existing 4agze?
Maybe a 3sgte 2.0L turbo engine from a ST185 celica.

[IH8TEC]

turbo would be a nice easy way to get alot of horsepower, t3/t4 turbo maybe,

[thaphatty]

im putting a rover 3.5ltr V8 in mine

what you need is a 1UZ from a soarer

[adikt]

rover v8? wtf?
you're gonna be able to build a house out of all your spare engines soon

[Dangerous_Driver]

lol @ rover v8, if you put a 1uzfe in an ae86 it would be a sledge! mayaswell stick to 4 cyl like 3tgte or 3sgte etc

[Adamal]

I'm all for the idea of a 3SGTE. But a Rover V8 wouldn't be a bad idea if you're willing to spend some time and money doing some fabrication for mounts and a matching gearbox etc.
They are very lightweight engines for a V8!

[NZ_AE86]

If you want to compete up front either a Turbo conversion on your current setup, but this would require an ECU to make Max power, or fit a 3SGTE 2.0L turbo engine out of a GT4 Celica or SW20 MR2 Turbo. With the GT4 engine you will be able to get away with the factory ECU and also have a bit of a flatter power curve which will be good for Targa Roads. If you go with the turbo conversion on your current setup you will end up with a steeper curve which can be harder to drive on 'blind' roads.

[Si]

3500cc rover v8 is light for a v8 - all alloy blah blah, was the engine of choice for a major upgrade for the eskies and cortinas for a very long time. as far as i can remember the engines weigh appox 130kg.
im not to sure what a 4age weighs tho.

Im not sure what the class rules are like for targa, but sr20dets and 2jzgtes have been done in gook land before.

[beeker]

If you want to compete up front either a Turbo conversion on your current setup, but this would require an ECU to make Max power, or fit a 3SGTE 2.0L turbo engine out of a GT4 Celica or SW20 MR2 Turbo. With the GT4 engine you will be able to get away with the factory ECU and also have a bit of a flatter power curve which will be good for Targa Roads. If you go with the turbo conversion on your current setup you will end up with a steeper curve which can be harder to drive on 'blind' roads.

I like this idea. Will my T50 be strong enough ? What about bell housings etc ??

What about the ST205 engine ?

All info and thoughts welcome.

[NZ_AE86]

The old T50 will hold up to a Turbo'd engine for a while but will give up eventually. You can get a bellhousing that will bolt a W55/7 up to your 4AGE from memory they are about $700 and if you search the forums somewhere there are details of where to get them.

If you went the way of the St205 or any of the GT4/MR2 engines then you can use an 'S' series bellhousing and bolt a W55/7 straight up to it or you can make a more common 'C' series bellhousing fit without too much trouble. You can also make the engine bolt in if you can find the correct crossmember (hard to find but I may have one for sale if I can find it). Worst situation you may need ot make mounts which is no big deal anyway. you will have to make some mod'd to the oiling system as the engine will be sitting vertiically in an AE86 whereas it leans back in a GT4. Once again if you do a search I am sure there is some detailed info on what needs to be done.

[vvega]

lol @ rover v8, if you put a 1uzfe in an ae86 it would be a sledge! mayaswell stick to 4 cyl like 3tgte or 3sgte etc

1uz is barly heaver than a 3s
and if it is a race car you could easly mount it back slightly furthier
v

[vvega]

why not go to the 7a
1800cc 4age ??

if you want a 3s get a beams or somthing designed to stand up
many people have found out the hard whay the 3s's do not like racing conditions when stood up
fine for town trips though

v

[Drifter4ag]

Just turbo that ZE you already have
stock ecu can fuel for plenty of power .. more than enough to be competitive.
Dont go for 3sgte .. gains are minimal over a 4age for the amount of work you would have to do
w55 transmission with nite parts bellhousing is the go and can be setup for about $1000 depending on how much you pay for your box.
remember if you go for more than about 140kw@wheels the diff will be on its limits and axles will start breaking with LSD and Locker