3SGE and 3SGTE 3rd gen Diffrences Options

[Alan]

Hey guys its me I am back in the game hehe, I need some info with anyone who can help me out I need to know the main diffrences between the 3SGE and 3SGTE 3rd gen cylinder heads, I need to know what valve cover fits the 3SGE and if a fuel rail of a 3sgte will fit a 3sge head any other diffrence anyone knows please le me no

[delusionz]

Alot of the information circulating around Celica and MR2 websites will suggest that nothing in the Beams red top 4th gen 3S-GE engine is backwards compatible with the Gen 2 and 3 engines, Not even so much as a head transplant.

- However -

IIRC the latest Toyota Caldina GT-Four ST246 is already VVT-i equipped.

The Toyota Caldina GT-T ST215 engine is also known as a Gen 4 engine but shares nothing in common with the Gen 4 3S-GE Beams, the ST215 is NOT VVT-i equipped, it simply sports a .5 increase in compression ratio, a side feed intake manifold design and a 1 piece exhaust manifold and turbine housing design.
The flanges do NOT mate up with the older Gen 2 and 3 engines, but the head does.


To be honest, the addition of VVT-i to a turbocharged engine which doesn't already have it is somewhat beneficial to the lower rpm band (although alot lower than it would be in an NA engine, perhaps up to 2500 rpm in turbocharged vs 4500 rpm in NA) but in terms of bang for buck you're not getting anything for the money and time spent.

You -COULD- buy a whole Gen 4 3S-GE Beams engine, transfer your crank and pistons from the Gen 3 3S-GTE, add standalone engine management, have a custom exhaust manifold and downpipe crafted, have a custom engine wiring harness crafted, change over the old sensors back to the new setup especially the MAP sensor and drop it back in, god knows how much this would cost...

-AND THEN-

Wow you've gained a little bit of torque just before the point that your boost kicks in, the top of your engine looks beautiful in red BUT

You've just lost the mounting points for your very effective ST205 Water -to- Air Intercooler charge cooler forcing you to go front mount which means an extra 2 metres of length in intercooler piping and more turbo lag!!!! thus negating any benefit you gained from the VVT-i...

So sorry to bust your bubble though, VVT-i would be cool if it was available in 1994 for the 3rd Gen 3S-G* engines... But you'll just have to go without.