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Old 11-03-2011, 02:12 PM   #69
Allch Chcar
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Quote:
Originally Posted by Buggy51 View Post
Well, considering that CA is one of the largest automobile markets in the US, it would be odd not to do anything if it requires 93.
Cali heavily regulates performance upgrades and they have 91 instead of 93 octane. It's hard to design a tuner friendly car for a market where anything aftermarket is heavily regulated or illegal.

Quote:
Originally Posted by verlumpt View Post
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
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.

Quote:
Originally Posted by Do Boy View Post
Well if the weight is close enough to 2500lbs like they have stated in another thread. I will prolly attempt to build this car all motor. If it's in the upper 2700-2800 I will prolly have the shop I go to fab up a custom Turbo setup.
2700 is with a full tank vs the quoted figures. So right in the middle.
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Quote:
Originally Posted by Dragonitti View Post
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