5sfe head swap? Options

[momentai99]

Hey guys, I have a 5sfe in my celica. it's a 94 gt and I was looking for a little more, how should I say oomph out of the engine.It's decent but not good enough yet. My other car is a 350 horsepower camaro so understand my need for speed.
I've been told I can either do a head swap although with a pre 97 model that wont work? thats what I heard.
I'm not interested in a v6 swap. The only other thing I can think of is a 3sge or 3sgte swap?
I have a 5 speed tranny and I can get the stuff for less than a grand (have a buddy who runs a shop).
So its a matter of choosing and deciding the easiest option. But that 3sgte with the twin entry turbo sure sounds nice....


Also in the 5sfe can I port and polish the heads for less restriction? I've been told thats where the main problem is with the engine.

[Syaoran]

@Special_Edy: You think the valves are almost vertical on the FE head? Compared to the wide GE head, sure, but look at this VW ABF head



And they make ****loads of power with that. It's also a driven exhaust cam, not dual sprocket just like the FE head. That ABF engine makes 148 HP with 1 point higher compression than the 5S-FE (a total of 10.5:1 static CR)

To me, the main issue of the FE head is the cams. A good set of cams will make it come alive, enough to start asking for a bigger TB, better IM and a header.

Me personally I'm going to turbo mine. I'm at most going to put cams in it, I won't do bigger valves or anything of the sort for now.

I'm pretty confident that the 5S is capable enough of efficienty flowing upwards of 300HP at the wheels with the right mods (and obviously a turbo). Proper ring gap, good quality rings or even better a set of forged pistons, a set of rods with bigger bolts e.g. OE 3SGTE rods fit onto the 5S crank, 2jz springs and retainers with a set of cams and you have a good base to start with, that can spin above 7000 RPM safely. Slap on a turbo and madness will ensue.

Most 5S-FTE guys who've blown their engines is because of a ****ty tune, and/or a ****ty tuning solution. A piggy-back isn't always enough, even if it's a GReddy Ultimate... I don't like piggybacks, stock ECUs don't like being tricked or being told what to do. A proper EMS that lets you take full control of the engine is the #1 insurance that it won't blow if tuned right.