Turbo downsize results

4GTuner

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OLDIE

Well-Known Member
Joined
Feb 1, 2009
Messages
694
Location
Brisbane
I remover the bush bearing 3582 that had a billet comp wheel and an AR63 open scroll that was om my divided manifold and replaced it with a GT3076R with a twin scroll AR82 turbine
Same boost 20psi same dyno same tuner.

https://www.facebook.com/photo.php?fbid=10157795241225024&set=p.10157795241225024&type=3&theaterhttps://www.facebook.com/photo.php?fbid=10157795241225024&set=p.10157795241225024&type=3&theaterhttps://www.facebook.com/photo.php?fbid=10157795241225024&set=p.10157795241225024&type=3&theater

Sent a phone pic to a mate and he posted it for me.
 
Comes up for me (I'm a member). Max horsepower drops from 387.8hp down to 359.9hp. However between 3000 and 4500rpm there is around 50 to 80% increase in power. At 4000 rpm it makes over 100hp more then the old turbo, with 140hp before to 245hp now.
 

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