Quote:
Originally Posted by verlumpt
Yes, but if it were 8:1 you could run over 20 PSi and make more power in the end. Power delivery and power band would be completely different, but the numbers for low comp + high boost will almost always be higher than high comp + low boost.
Just be patient for those 'needing' boost. I'd bet you will see a turbo variation from Subaru in this chassis... or just plan on replacing bottom end components to get a more reasonable 9:1 or less CR
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Depends.. what do you call "low" boost? high compression + boost makes more power and a better all round drive.... If you know how to tune.
Quote:
Originally Posted by Allch Chcar
DI is a boon either way, the Mazda Speed3 has 10.25:1 Compression ratio and runs 15lbs. But yes, less compression will help with running more boost on low octane pump gas. It's not always a concern of engine durability as much as fuel octane. Eg. Honda Guys have run 20lbs+ on a F20C with Racefuel/E85. Detonation is a huge factor in turbo builds. Most cars are designed to be strong enough to handle detonation long enough to retard timing and that is it.
N/A the stock engine is going to rock if it sees enough development. Low boost it will work. But if you want an all out turbo you will want to swap to a WRX/STI turbo engine.
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Exactly. I hope the engine can go the K20 route and see a ton of development.