[arghx7]

Originally Posted by Driftster

- The drastically sky high compression atio of this car serves ONE purpose above all else in this application and it is not the production of power, it is the fuel economy.

The 12.5:1 compression ratio combined with precision atomization of the direct injection system is the very reason this car gets
27mpg city and 30+ highway.

Yeah, so what? Do you think people want to get raped at the pump? I'm sure you know Subaru and Toyota have to pay out the ass in taxes if they don't have good enough gas mileage.

ONTOP of that, lowering the compression ratio on this engine BEFORE giving it to the N/A tuners NOW gives the N/A tuner even MORE opportunity to produce power...

What's your point. Why would Subaru or Toyota engineers care about this? Because you read somewhere that they are trying to sell to tuners? You keep forgetting that aftermarket tuners are typically 10-15 years behind the OEM's. They barely understand what they are messing with and they have very poor equipment in comparison.

However neglecting the market as a whole is a terrible idea..Resulting in missed opportunities at massive capital gain.

I can tell you right now that there is much more monetary incentive for Subaru/Toyota to make the engine according to its current design than the way you and a (relatively speaking) small percentage of potential buyers might want.

The compression ratio isn't the ONLY deciding factor in boost naturally, but you're also treating the atomization the in cylinder injector brings on as a cure all for detonation, when in fact it's more of a band aid....It's more of a "persistent methanol" injection

Tell that to all the OEM's who are using the homogenous charge, high geometric compression ratio direct injected concept.

You are also failing to leave out that the entire geometry of the pistons in these high compression has been tailored to run in OEM configuration.....Meaning the dome shape of the piston (as posted prior) is now shaped to work primarily within the boundaries of the off the assembly line power plant..

Yup. That's how most modern direct injected engines work. The shape of the piston bowl is a big deal.

So now you've got a car designed to work at it's oem static compression ratio..
and throwing in a drastic dynamic compression change like forced induction..


Have a look around the industry buddy, and look at all the new cars which are being force fed like crazy in the aftermarket..you'll see they all share a
common bond..

They don't use direct injection..

Although their compression might be a little high (ex BMW s65) their R&D work is a based off of the same tuning methods that have been used for years and years and years and years on race engines with higher than 8.5:1 compressions

Hence my comment that the aftermarket is usually far behind the OEMs. I'm sure in the 80s nobody understood how to tune a 4A-GE when it came out.

Except if you understood how imperative the dish on that piston was to the effectiveness of the direct injection you'd understand how your attempt at "making my point about the shape of the piston next to moot" ......was moot...

The combination of the in cylinder atomization with the dish shape is what gives proper cylinder cooling and proper /more efficient burn..

without that Dish shape...all you're doing is spraying fuel onto a side of a cylinder bore..

The mixture formation in the combustion chamber varies under different conditions but you are correct. So changing out the fuel system will not be an option for a long time, and putting a turbo on it will be difficult. So go buy an older car and modify that.

Except when modding becomes a difficult task/chore and more of a hassle producing minimal gains for maximum work.....the modding/tuning of the car hits a crest/comes to a head...and from there very little development takes place, and the car spends the rest of it's years in niche groups and club meetings filed with people who love blowing their money on unsuccessful products

You are certainly right. Platforms can stagnate, and there is a good chance this will be one of them. You buy it for what it is, not for what you can turn it into.

If this car never comes with a factory turbo engine then don't expect the platform to go anywhere in terms of power. Buy it for what it is, not for what you can make it.