bigger turbo on stock wrx?? - Page 2 - Subaru WRX Forum
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post #16 of 21 Old 10-24-2005, 07:30 PM
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Quote:
Originally Posted by Momemtum
you could probably get away with doing that but why would you try? I would actually reccomend that you get a UTEC/accesport FIRST-you can get a lot more out of the stock setup with just tuning VS running a potentially dangerous setup untuned.
That's my question too. Why??? Wouldn't a bigger turbo, without doing EM or anything else, just mean more turbo lag? If it's part of building a bigger/better package, why not assemble it and do it all at once? Very
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post #17 of 21 Old 10-24-2005, 08:55 PM
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Just wait to install the bigger turbo, I have a super 16g setting in my closet until I get fuel upgrades.
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post #18 of 21 Old 10-25-2005, 09:14 AM
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Quote:
Originally Posted by Jag_Warrior
That's my question too. Why??? Wouldn't a bigger turbo, without doing EM or anything else, just mean more turbo lag? If it's part of building a bigger/better package, why not assemble it and do it all at once? Very
No. A bigger turbo means more air. More air without engine management means much leaner AFR's.
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post #19 of 21 Old 10-25-2005, 03:55 PM
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okay everyone has to realize that we drive JAPANESE cars meaning every car run completly different. Your friend may have a bigger turbo in his car with no EM or fuel upgrades and the car runs fine. Congradz to him i wish him the best of luck. But if you did the same thing to your car you could have completly different results. If you have the same that great you pick up a whopping, umm i dunno what you guys think 11whp if your lucky. Bro your more then welcome to try it and please with all seriousness tell us how it works out for you.
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post #20 of 21 Old 10-25-2005, 04:28 PM
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Quote:
Originally Posted by Cosmo
No. A bigger turbo means more air. More air without engine management means much leaner AFR's.


And leaner AFR's mean........

Basicly you'd be doing all that work for nothing. The OFF chance that it may work really means it ain't worth it.
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post #21 of 21 Old 10-25-2005, 06:47 PM
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Originally Posted by Cosmo
No. A bigger turbo means more air. More air without engine management means much leaner AFR's.
Yeah, that I understand. But I thought he said something about not trying to raise the boost (post #11). Maybe I didn't understand what he was saying, but that's why I didn't understand what he was trying to accomplish. If you're not trying to raise the boost and you slap on a bigger turbo, aren't you just increasing the lag effect... for no gain?

I'm not criticizing this fellow. I just haven't figured out what he's trying to accomplish by changing the turbo. Cosworth is looking at going to a twin turbo setup in 07 for their Champ Car engine. They may or may not shoot for more boost and horsepower, but they hope to decrease lag and package it easier. But there will be a new Pi ECU to match the new setup. So avoiding EM settings and making a major change seems a little hinky to me.

Like I said, maybe I just didn't understand what he was saying.
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