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Old 07-03-2013, 11:41 AM   #8
Scooby Specialist
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
2006 WRX


Originally Posted by Clutch Dog View Post
now on the other hand the GT2860R would yield excellent spool and plenty of under the curve power, but the peaks would be minimal over a stock sti turbo. a friend of mine was able to make some 300+ whp on a cracked tune himself, but stupid early spool. later switched to a vf43 and liked the curve it gave overal. i think the disco potata is best for the 2.0 motor with the 2.5 you can spool things much nicer... (not always a 30r though)
BUT it has a BB center housing so the transient response, which is whats really important when actually driving not just doing dyno pulls will be much better. I keep trying to find real good graphs of the stock location GT28RS or 16g XTR on 2.5, and they dont exist. Some of us with 2.5s dont want to buy someone's crummy used turbo, and also think that journal bearing turbos belong in the 90s and would be perfectly satisfied with making over 300hp with BB turbo transient response and good low end.

If I wasn't trying to hold myself to no fab work on the daily I would just be making my own UP and DP to run an EFR6758.
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