
Originally Posted by
wazzu70
People who are used to dinky turbos usually think this. A larger turbo will deliver much more linear power and will give a lot less back pressure for the airflow created which is much better for your motor. Also keep in mind that even if peak pressure happens at 4k rpms, the turbo is still creating flow before that. You might still be getting the same pressure at the same rpm you do now with the exception of the motor not being choked off by such a restrictive turbo. If you want a GT28 series go 2871 at least.
http://www.audizine.com/forum/showth...=1#post5052445
keep in mind there is a huge difference between spooling and full spool. you are spooling way before full spool.
I'm not new to turbos...and I certainly understand how they work. I'm a Mechanical Engineering Technologist...so flow/pressure/restriction/compression/combustion....etc are all areas that I've learned about. I have also been into turbo'd cars for over 10 years.
I'm more concerned about where the turbo starts to spool vs. where it peaks. If i was building a 2L with an AEB head and AEB intake.....etc I wouldn't even think twice about going 30-series. But since the motor is staying stock aside from new rods and freshening up the rings and bearings, I feel it's pointless to put a large high-flowing turbo on.
If I decide to go the easy route and go eliminator, it will be a GTRS. I feel like the 2871R eliminator is just a half-cooked idea to sell a different product that's nearly the same. If I go full frame it will most likely be T25 GT2871R.
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