well I'm trying to find out what my engine has, heres the info I know of...

>>3S-GE>>

3rd Gen
2.0L (1998cc) DOHC 16 valve
ACIS
Compression ratio: 10.3
Bore: 86mm
Stroke: 86mm
electronic fuel injection
In: 252deg, 9.8mm lift (timing 7/65)*
Ex: 240deg, 8.2mm lift (timing 53/7)*
Power: 132.39 kw / 7000rpm
Torque: 191.23 N*m) / 4800 rpm

*not 100% sure...

someone said it has VVT (not VVT-i)
I think It might have 'electronic timing advance'

can someone help me here??

theres some info on these engines here

http://www.celica-club.co.uk/forum/index.p...306&hl=acis

well I knew about the ACIS, but what about 'electronic timing advance'? because the celica models up to 96 had manual adjustment*

This post has been edited by Rusty: Jan 31, 2008 - 2:55 PM

as ive been tuning mine i havent come across any adjustable timing device apart from the distributor on a stock rev3 3sge

I believe electronic timing advance is just a fancy word for saying the ECU intecepts the signal to the ignition coil, and judging from the air temp reading or MAF reading it will advance or retard timing.
Ive heard of people with the Altezza (also 3SGE) replacing their air temp sensor with a variable resistor (dimmer switch thing) in order to manually adjust timing.

If your valve cover does not say BEAMS, you dont have VVT (variable valve timing) in any shape or form.