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I picked up a set of these turbos after having good luck with On3's standard bearing turbos in the past. I wanted something affordable, but with some modern amenities and updated aero wheels. I sold PTE, Turbonetics, FP, and Garrett turbos from 2003-11 so I saw the huge improvements turbine and compressor wheel designs have made over the years in moving air with great er efficiency. On3's billet line up on paper gives a great gap between improved efficiency and cost. Similar turbos sell for $2200+in ball bearing form http://www.extremeturbosystems.com/P...bocharger.html
These are the turbos I have purchased
http://www.ebay.com/itm/On-3-Performance-Billet-67-67mm-Ceramic-Ball-Bearing-Turbocharger-CNC-Comp-Wheel-/131310587772?pt=Race_Car_Parts&hash=item1e92b88f7c&vxp=mtr
It came packaged well with super janky instructions. Really, if you need instructions you should not be buying a turbo at all.
Turbo was perfectly clean and preoiled.
The Compressor is obviously machined billet AL and not cast, as is the backing plate which is a great sign of quality. Both Compressor and turbine wheels were balanced (I verified the rear of the compressor was balanced with material removed) I did not check the dynamic balance of the assembly as I don't have the $250k machine to do it.
The Compressor is definitely updated tech with a thin center shank and much larger, longer, and more swept blade area. It also has an airfoil profile unlike most cast turbos which are just a uniform piece of material. Compared to the GT45 everyone loves
And a GT42
It does not take an engineer to see what compressor is going to move air more efficiently.
The turbine wheels looks more like the Aero shape of Garret's GT turbine, which is GREAT news! This is compared to a China GT45 (top) and a Garrett T31 turbine of a 60-1 (left)
Most people don't realize when the GT35r came out and crushed everything in the 6xmm arena, all they did was change the turbine and used the same compressor (very, very slightly reworked) as their previous T-61. People were bolting these on and gaining 60-80whp all from turbine efficiency. So, I am happy to see that technology used/mimicked here.
You can hear and feel the BB CHRA. Its not as loud as a Garrett CHRA which uses steel BB's, but its obvious especially when compared side by side to a STD Bearing unit.
Another nice touch is a true unique identifier. I dont know if anyone is actually keeping track here, but again its nice to see!
All and all, I am 110% happy with my purchase. These are by FAR the nicest "Chinese" turbo I have ever seen, and I have had 100's pass through my hands over the years. You can buy 2 for less than one of its competitors, all with a true BB CHRA. Also, its interesting that these wheels seem to be true one-off units, as they don't match any of PTE/COMP/FP or Turbonetics wheels I have seen or can find in the directory, and are obviously not BW/Schwitzer copies.
Funny thing is, this is about the turbo I asked PTE to build in 2008 (6762) for a TT Supra set up and they would not do it. Glad Chad found someone that would!! With the turbine wheel/housing sizing, I think this would work great on a 4 banger as well and will test one on a Mitsu or Honda in the next few months hopefully.
I have about 300 miles on these now, and the still have ZERO shaft play, same as they came out of the box. The are very responsive and I can see full boost in all gears on a stock 5.7 (twins), and positive manifold pressure @1600 rpm in 4th. I will be installing the rest of my fueling soon, and will have dyno charts available as soon as I build an intercooler set up.
Any questions feel free to ask. I hope this helps some people considering this option since its a new turbo tot he market.
Last edited by coltboostin; 10-03-2014 at 12:06 AM.
Always wondered why so many people go out and get On3 turbos. I just thought they were being cheap or something. Guess its just a bang for the buck type of deal.
Always wondered why so many people go out and get On3 turbos. I just thought they were being cheap or something. Guess its just a bang for the buck type of deal.
Their previous products are based on old tech, but can not be beat for the buck. There Billet units are new to the market, and I could not find any reviews for them. Considering the value, I took the plunge and so far and more than surprised how great they are.
Another thing to note, the shaft is thicker, and the CHRA seems more beefy than a PTE CHRA. Shaft size used to greatly increase durability with STD bearing turbos. Not sure how much of a plus this is, but I have seen a few PTE turbine sheer off, so the girth is a welcome sign.
With the cost of an S366 being under $600, I don't see these catching on unless they can serious out perform an S366. (doubtful)
We've all seen what a non-intercooled SBE 5.3 can do with twin S366's on Silver_82's 3200lb S-10. (8.44 @ 161+) I'm very curious to see how these perform.
Last edited by Forcefed86; 10-03-2014 at 01:48 PM.
How big are the S366's physically vs these (or any other midframe turbo?)
Much smaller and lighter. Similar power potential in a much more compact package.
Originally Posted by Forcefed86
Thanks for the info! In for results.
With the cost of an S366 being under $600, I don't see these catching on unless they can serious out perform an S366. (doubtful)
We've all seen what a non-intercooled SBE 5.3 can do with twin S366's on Silver_82's 3200lb S-10. (8.44 @ 161+) I'm very curious to see how these perform.
See above.
I could NEVER fit an s366 as twins on my car without cutting the car apart. Also they are 12-14 lbs lighter than the Borgs-less stress on my hillbilly manifolds
Much smaller and lighter. Similar power potential in a much more compact package.
See above.
I could NEVER fit an s366 as twins on my car without cutting the car apart. Also they are 12-14 lbs lighter than the Borgs-less stress on my hillbilly manifolds
been running the on3 7665 on TT-Notch all season and no issues and very happy with the quality of them. compared it to the turbonetics i have here and spiting image of them
small compact and work well for the price
this post is great news on the billet ones
as for the BW s366 not everyone is a BW fan boy and they are hard to package and the smaller ones are hit or miss as for realiability
How would this turbo compare to the on3 70mm as far as spoolup and physical size. the billet is rated for 700hp and the 70 for 680 so i assume power would be similar.
been running the on3 7665 on TT-Notch all season and no issues and very happy with the quality of them. compared it to the turbonetics i have here and spiting image of them
small compact and work well for the price
this post is great news on the billet ones
as for the BW s366 not everyone is a BW fan boy and they are hard to package and the smaller ones are hit or miss as for realiability
Agree'd on all counts
Originally Posted by TrendSetter
How would this turbo compare to the on3 70mm as far as spoolup and physical size. the billet is rated for 700hp and the 70 for 680 so i assume power would be similar.
Physical size is the same, and I bet it will make a good bit more power
Originally Posted by 2005vetteTT
I spoke with Chad and he said the 76 and this have the same exhaust housing so you can swap em if ever desired.
That is good to know-is there a divided t4 option?
Ran out of fuel basically on the first hit with a single 255, could not even tune it on gate. More fuel coming now, hope to be on the dyno before the new year. 50+ hours, kids, and a needy wife are the blame for the slow updates.
Turbos are still mint though-no leaks-no play-drive it every nice day I can
10-02-2014, 11:58 PM
Turbo Review; On3 Billet BB 67mm 
Turbo was perfectly clean and preoiled.
Turbo was perfectly clean and preoiled.
