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On3 performance 78/76

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Old 06-29-2014, 09:31 PM
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Originally Posted by Rise of the Phoenix
Quite a few on here have bought one with the purpose of replacing a smaller turbo. I bet we will see numbers in a week or two.
That's what I am hoping. I plan to push two of them pretty hard but will be at least the end of the year before my build will be running
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Old 07-01-2014, 10:27 AM
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anybody got any picks of one took a part yet
imo from the looks of it, an from some of what I've been told by some of the turbo gurus on here about China turbos
it is probably a clone of older garret/honeywell wheel designs
with a mix of turbonetics
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Old 07-01-2014, 10:47 AM
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Originally Posted by denmah
i have a built 370 truck, with a on3 76/64 on it, ( it was a stock 4.8 truck)

and my friend just bought this 78/75, so i am going to directly swap it and see the hp difference

it has SERIOUS trouble getting over 500whp and is capped off at near 550, so it will be interesting to see how much more i can get out of the 78/75
Subscribed for results.
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Old 07-02-2014, 03:17 PM
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Just arrived in the mail. Had my son txt me a picture.
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Old 07-02-2014, 04:46 PM
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Jealous!
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Old 07-02-2014, 04:48 PM
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Oh boy. Cant wait to order this friday!! Its mirror finish too!
😍
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Old 07-02-2014, 06:11 PM
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.96 ar i Im guessing its an undivided housing right?
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Old 07-02-2014, 07:45 PM
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Shouldn't this be better than the master power t76 unit? I'm pretty sure they have a 6Xmm turbine wheel.....
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Old 07-02-2014, 10:51 PM
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Originally Posted by slowbu
.96 ar i Im guessing its an undivided housing right?
Correct.
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Old 07-02-2014, 11:06 PM
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Originally Posted by redhotev1
Shouldn't this be better than the master power t76 unit? I'm pretty sure they have a 6Xmm turbine wheel.....
Correct, the MP 76 and the on3 76 are almost identical turbos
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Old 07-02-2014, 11:47 PM
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would be nice if they would make some different size a/r housings
i bet they would make some killer twins on a 408-427ci engine running .68 a/r housings
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Old 07-03-2014, 06:40 AM
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Originally Posted by slowbu
would be nice if they would make some different size a/r housings
i bet they would make some killer twins on a 408-427ci engine running .68 a/r housings
You don't need that small of a back housing on a motor that size. Build the motor properly and get a cam that is spec'd for them and they should have no issues. I guess I will have some first hand data on that when my car is completed
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Old 07-03-2014, 08:09 AM
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Looking forward for results. The only thing holding them back before was the tiny turbine. While this one is not huge, it should be great for the 5.3/4.8 crowd.
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Old 07-03-2014, 06:41 PM
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Just got mine as well.
Attached Thumbnails On3 performance 78/76-wp_20140703_001.jpg   On3 performance 78/76-wp_20140703_002.jpg   On3 performance 78/76-wp_20140703_003.jpg   On3 performance 78/76-wp_20140703_004.jpg  
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Old 07-03-2014, 07:43 PM
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On3 performance 78/76-46vt0x3.jpg
On3 performance 78/76-aqvqaua.jpg
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Old 07-03-2014, 07:44 PM
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swapped it on a 500whp on3 equipped built 6.0 truck and it makes nearly the same power as the 76 at the same boost levels, just makes slightly more hp

honestly not sure whats up with that, might be something else in the setup?

i also have a KB racing manifold and billet turbo on the way for this truck
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Old 07-03-2014, 08:15 PM
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How much boost Denmah? Wonder it maybe it doesn't 'shine' til over 16 lbs or so?
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Old 07-03-2014, 08:22 PM
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You would think it would make more power all over though, regardless of boost
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Old 07-03-2014, 08:59 PM
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15 #
On3 performance 78/76-k7ltzlf.png

20#
On3 performance 78/76-qzlknjc.png
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Old 07-03-2014, 09:10 PM
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Well...that's disappointing.
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