On3 performance 78/76

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Jun 17, 2014 | 11:28 AM

#21

LT1RAY

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From: Colorado Springs, CO

Quote:

Originally Posted by Rise of the Phoenix

Thanks. In theory, the 78mm will make more power than the 76mm, correct? Is the exhaust wheel 82mm or 75mm, or do you have a choice between the two?

Thanks for the help.

In theory yes, but adding more compressor wheel is worthless without an exhaust wheel that can keep up. The inducer is 82mm and the exducer is 75mm on the exhaust wheel.

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Last edited by LT1RAY; Jun 17, 2014 at 11:38 AM.

Jun 17, 2014 | 11:32 AM

#22

LT1RAY

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From: Colorado Springs, CO

Quote:

Originally Posted by sbcgenII

You already have one?

I do not, these are pictures that On3 posted up. The turbine wheel looks to be a direct copy of the F1-75 wheel found in the Turbonetics 7875 units.

Jun 17, 2014 | 11:56 AM

#23

Marc 85Z28

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Quote:

Originally Posted by sbcgenII

You already have one?

I should have mine later this week. If I get it before the weekend I'll post up some pictures comparing to their 76mm which I also have.

Jun 17, 2014 | 12:04 PM

#24

Photochop

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So your price shipped was $420? Do you know the A/R?

Jun 17, 2014 | 12:24 PM

#25

LVTUNER

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From: Las Vegas

s475

Where did you find the S475 for 639.00 shipped???

Jun 17, 2014 | 01:05 PM

#26

Marc 85Z28

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Quote:

Originally Posted by Photochop

So your price shipped was $420? Do you know the A/R?

Are you asking me? Mine was $419 shipped. .96 A/R

Jun 17, 2014 | 01:10 PM

#27

Rise of the Phoenix

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From: Jefferson City, MO

Are these going to be sold on On3's website? Does anyone have a link to where one can be purchased at? They are not on On3's website and the above e-bay link pulls up nothing.

Jun 17, 2014 | 01:20 PM

#28

Photochop

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From: In the garage

Quote:

Originally Posted by Marc 85Z28

Are you asking me? Mine was $419 shipped. .96 A/R

Yes, thank you sir!

Quote:

Originally Posted by Rise of the Phoenix

Are these going to be sold on On3's website? Does anyone have a link to where one can be purchased at? They are not on On3's website and the above e-bay link pulls up nothing.

I would imagine you have to call them, I've looked everywhere as well and no dice.

I spoke with them back in February and they said they were still a couple months out with testing. Looks like it's been thoroughly tested/tweaked given the timetable, really eager to get my hands on one. Anybody wanna buy a TC78?

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Jun 17, 2014 | 04:43 PM

#29

1969x11

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From: cedar bluff,alabama

They had 3 on ebay and already sold them, so the listing is no longer there. Im sure you could call them and order one up. I understand this turbo is not a comparison with the box stock s475, most people bring that turbo up when peeps are talking budget turbo's and to get one that has a t4 housing your looking at $1000.

Jun 17, 2014 | 04:48 PM

#30

1969x11

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From: cedar bluff,alabama

Quote:

Originally Posted by LVTUNER

Where did you find the S475 for 639.00 shipped???

pm sent...non site sponser.

Jun 17, 2014 | 05:03 PM

#31

sbcgenII

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From: Fort hood

All the their adds were gone earlier. They are back now and so is the turbo.
http://www.ebay.com/itm/On-3-Performance-78mm-Turbo-Camaro-LS1-LS2-LS3-LS6-LSX-Camaro-Trans-Am-6-0l-7875-/131218682308?pt=Race_Car_Parts&hash=item1e8d3e31c4

Jun 17, 2014 | 05:06 PM

#32

sbcgenII

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If these are still available in a few months i will do a back to back dyno.

Jun 17, 2014 | 05:18 PM

#33

tucn26

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I called yesterday to order mine and was told they had like 100 on hand...

Jun 17, 2014 | 06:41 PM

#34

vht

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Wonder how it'd work on a 6.0?

Jun 17, 2014 | 09:47 PM

#35

I8URLS1

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I spoke with Adam today and he informed me they have 100 of them in stock. I have two on the way

Jun 18, 2014 | 08:47 AM

#36

2muchboostNY

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I wonder how comparable they are to the Turbonetics 7875 units besides the Turbonetics being ball bearing only? Pretty close in specs from what I can gather.

Jun 18, 2014 | 08:59 AM

#37

Photochop

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I figure for $420 on a $500 junk yard 5.3 it's worth a shot for sure. Seems like the track record lately on the on3 stuff has been good. I know they had some issues a year or 2 back but I think they're having a solid product put together now that they can stand behind.

Jun 18, 2014 | 10:06 AM

#38

Rise of the Phoenix

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From: Jefferson City, MO

Quote:

Originally Posted by Photochop

Yeah, the price for that turbo really can't be beat. Their add states it's a good turbo for the larger cubic inch engines, so this thing should work awesome on a 5.7 or 6.0.

Jun 18, 2014 | 10:38 AM

#39

Photochop

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From: In the garage

This is from a thread where someone asked how much power a T7875 would max out at...

Quote:

Originally Posted by RedRocketZ28

On 15-16 lbs. mine was about 670 rwhp. I ran mine up to 18 on the street a few times and I could tell it didn't like it much on my LQ4. I did go 9.92 @ 140 with it on 14 lbs. though. It was a great turbo for sure. On a 5.3 it should be a lot happier.

From thread...

https://ls1tech.com/forums/forced-in...out-t7875.html

Looks like on a 5.3 backed with an auto it's the money size...