4th Gen 3s-GTE Compression Ratio

I want to run higher compression on my 4th gen 3S-GTE, and I want to know what compression ratio you would recommend since the engine has a 9.0:1 ratio already.

Is that a forced induction or normally aspirated engine?

If forced induction, how much boost are you running and on what fuel?

If normally aspirated, you can probably go to 10:1 or 11:1 by using 93 octane premium fuel.

What is the engine used for? Street, Road Racing, Drag Racing, or some other wild thing?

Camshaft selection is also important, as are intake and exhaust, to a lesser extent.

Sorry that it took so long for me to reply. I’m building the car for drag racing and I want to know what parts would I need in order to make 700 hp on the 4th Gen 3S-GTE which is a 2.0l turbo motor from the factory.

700hp 2L -- wow!

You should work with an engine builder / parts supplier that has already blown up lots of engines figuring out what to use. Order the parts from him, let him make whatever necessary custom modifications or bits are required. Usually they will share their knowledge with a customer -- tell them your goals and let them know you want to buy the parts from them to make it happen. What do they suggest?

Good Luck!

As David said - mistakes are expensive and it's much cheaper to pay someone who's already gone through that stage.

There are at least three things you're going to need to know, to tell him/her - the fuel(s) you will be using, your budget*, and the time-frame for when you'll need it - some items may have several months long delays from the manufacturers (for example, I've just been told the specific dampers I need are finally available, after more than a year's wait!), and another good reason to use an experienced builder as they may have the parts on hand, or have the contacts to hurry things along..

*Remember, it's not just the engine that has to be up to the job, there's the fuel system that has to have the capacity to supply the fuel with some reserve - and if using alcohol (esp' methanol) it may need to be completely replaced with compatable components; clutch - not just torque capacity, but type, packaging it, managing the take-up, etc; the transmission from input shaft to hubs - some OEM are very strong, some aren't good for much more torque than stock; cooling - not so much the coolant side, but packaging adequate charge cooling; tyres - clearance for the size chosen; suspension - not just the components, but any structural requirements to prevent weld or structural failure at hard points; other stuff...

If the budget is tight, give some serious thought to a progressive build - by that I mean plan it so for each stage you know you have the parts in place to support that stage first, and if/when you need to up-rate or rebuild components, do them to support the final torque/power level you want - it may seem a bit daft to, say, fit a dual plate clutch when the engine, at that point only has enough to require a heavier cover/pressure plate, but I look at it as the difference between paying once for the final part or paying twice with one of those being limited use - and that's not factoring in labour and associated costs.