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Old 01-07-2010, 05:39 PM   #1 (permalink)
 
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Default RCautoworks is now an official direct distributor of Precision turbos and products

RCautoworks is now an official direct distributor of precision turbo's and products, that's right. We deal directly with precision so we can bring you the best prices guaranteed. Precision turbos are the big dog of the sport compact racing scene, actually racing in general. We no longer deal with bullseye turbo and we are not the only one that has came to this conclusion and here is why right below with the links.

https://www.d-series.org/forums/force...ye-beware.html
http://www.honda-tech.com/showthread.php?t=2689184









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Old 01-07-2010, 06:41 PM   #2 (permalink)
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This will come in handy when I go to get my 6262 and 6765 good stuff Bob
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Old 01-08-2010, 06:44 AM   #3 (permalink)
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Good Shiet!!!!
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Old 01-08-2010, 06:45 AM   #4 (permalink)
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LOVE IT!!!!
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Old 01-08-2010, 07:16 AM   #5 (permalink)
 
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Originally Posted by Boosted-EH-804 View Post
This will come in handy when I go to get my 6262 and 6765 good stuff Bob
You know this man....
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Old 01-11-2010, 12:33 PM   #6 (permalink)
 
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Some information on there new air to air ball bearing turbo units, not a lot of people know about these units, but they are ball bearing turbo's that don't need to be water cooled.

Advantages of Precision Turbo Dual Ceramic Ball Bearing Turbochargers

* Uses dual ceramic ball bearings, as opposed to steel bearings (ceramic is a more heat tolerant material, so there is no need for water-cooling provisions)



Just some points to consider: Ceramic Hybrid bearings have much harder balls and races attributing to it’s lower rolling resistance, higher heat tolerance, and longer life. Ceramic balls’ deviation from true circularity is much less than steel balls, which results in greatly reduced vibration in the bearing.

* Do not need to run water lines
* Ease of installation (will drop into any existing kit built around a T-series platform)
* Units come standard with a built-in oil feed restrictor fitting
* Units are fully rebuild able with component parts. This allows for less costly rebuilds in the event of an incident.
* We are providing a better product at no additional charge



FAQ

* Are these units more vulnerable to heat soak without the water cooling option? Do we have to worry about oil coking? Assuming that you are using clean, filtered oil that is changed every 3,000 miles, there should not be any issues. Water cooling was introduced only at the request of OEs to meet demands of longer oil change intervals. A properly designed air cooling approach combined with the best bearing materials available allows us to do away with all of the cluttered water cooling lines.
* Do they spool any better than the water cooled, T-series CHRA’s (IE less bearing drag)? Although a Hybrid ceramic ball bearing has much less rolling resistance than a steel ball bearing, a difference in transient response will rarely be noticed by “seat of the pants.”
* How is the durability versus the water-cooled T-series CHRA? Hybrid ceramic bearings last up to 5 times longer than steel ball bearings in the same environment.
* Are these full ceramic ball bearings or coated bearings? Hybrid ceramic. Steel races with silicon nitride balls.
* Is there a weight difference between our CHRA and the T-series? There is probably a minimal difference in CHRA weight, but when you remove all the water lines and fittings, there will be a significant overall weight savings.
* The reason that we don’t need a restrictor fitting is because…? The bearing housing has built in “oil passages.” We can say that in 2 years of rigorous testing, we have not had one fail or leak oil.
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Old 01-11-2010, 12:34 PM   #7 (permalink)
 
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46mm wastegates, they come with 3 springs and are cheaper then the tial units.
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Old 01-11-2010, 12:55 PM   #8 (permalink)
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How tall are those units?
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Old 01-11-2010, 01:02 PM   #9 (permalink)
 
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Originally Posted by Drag4life723 View Post
How tall are those units?
I could get some measurements, there a little smaller then the tial 44.
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Old 01-11-2010, 02:33 PM   #10 (permalink)
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You should give me one of those 6262's for some good ole testing lol.......j/k........or am I
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Old 01-11-2010, 03:03 PM   #11 (permalink)
 
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You should give me one of those 6262's for some good ole testing lol.......j/k........or am I
Gotta give up both testicles
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Old 01-11-2010, 04:18 PM   #12 (permalink)
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Ill give u a kidney, only need one of those to function lol
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Old 01-11-2010, 04:22 PM   #13 (permalink)
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Quote:
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Gotta give up both testicles
ouch thats kinda pricey lol will cash be ok haha
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Old 01-12-2010, 07:53 AM   #14 (permalink)
 
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When doesn't cash work, cash work for everything John.
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Old 01-12-2010, 08:02 AM   #15 (permalink)
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Quote:
Originally Posted by RCautoworks View Post
Gotta give up both testicles
whats the address i dont need mine!

Quote:
Originally Posted by RCautoworks View Post
I could get some measurements, there a little smaller then the tial 44.
could you please.
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Old 01-12-2010, 12:02 PM   #16 (permalink)
 
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The overall height is approx. 4.5" and the height of just the can is 2.25
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Old 01-13-2010, 07:31 AM   #17 (permalink)
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Quote:
Originally Posted by RCautoworks View Post
The overall height is approx. 4.5" and the height of just the can is 2.25
cool thanks!
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Old 01-15-2010, 07:43 AM   #18 (permalink)
 
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cool thanks!

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Old 02-11-2010, 08:25 AM   #19 (permalink)
 
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This was taken from Dan Portera, who was the founder of bullseye turbo, but now works closely over at precision. Just another reason why precision is on top of there game.

We have been reviewing one of the Precision 67HPQ T4 units. From testing so far and after taking the turbo apart and getting some measurements we can see why this units does so well.
PTE def did their home work when they came out with the New CEA Billet compressors. What you will notice when you take a look at the compressor design is that the wheel looks very aggressive. It has a small hub and light weight design and what appears to be extended tips.
After looking at the wheel for a bit I started to take some measurements. Right away I noticed an advantage the the smaller hub gave the wheel and things started to become a little more clear on what was going on with the flow numbers I heard. When I got the turbo from PTE Joe told me the turbo flowed 94lbs - 99 lbs a min depends on housings. I was like wow those are big numbers for a 67mm unit. Well here is what I see as a very good feature of the new PTE CEA compressor design.

I measured the compressor wheel from the tip of the compressor wheel inducer to the hub (this is where the compressor nut sits) and I measured 26.2mm. I had a few other wheels sitting on my desk and I reached over to compare numbers and boy was I shocked. The wheel I picked up from my desk was the Borg Warner 67mm and the same measurement on that wheel was 22.7mm I also had a CompR wheel from Bullseye and the same tip to hub measurement on the 72mm wheel was 23.1mm.
What this means is that Precision through the CEA Competition Engineered Areo design is able to take advantage of several things one being taking weight off the wheel which allows them to do some different things with the wheel design. I noticed right away the wheel was much much lighter. Lightning the wheel allows a smaller shaft to be used and a smaller hub design. The smaller hub design allows the CEA design to grow the inducer inward instead of out word. This makes for a much larger leading edge and in this case the 67mm unit has a leading edge that measures what the competitions 70-72mm units measure and also comes very close on flow numbers.
This is huge leap forward in performance turbo design and a very out of the box way of thinking. I was very impressed with the units appearance and design, now lets talk about the performance of the unit when testing on the car.
When I installed the Turbo on the car and went for a drive to see how the car responded to the turbo change I noticed right away the turbo was very responsive so I thought I would do a back pressure log to see how the turbo fit the engine with the .68 a/r. The boost was 11.8 psi and the back pressure was 26psi, the back pressure logs showed the back pressure ratio was over 2 to 1. What was shocking is the car did not feel like it. On most, no all other turbos I have had in that situation you would feel the car loose considerable power when you got to the 2 to 1 back pressure ratio. I have seen cars loose as much as 90whp from the back pressure being that high. I was so amazed at that I had to call and talk to Dan Barlog at PTE and ask if this was normal of the PTE CEA wheel design and Mr. Barlog said yes and that once I install the larger .96 a/r housing he provided me I would notice another power gain when I got the back pressure closer to 1 to 1. I installed the .96 a/r turbine housing and the back pressure is now right at 1 to 1. The back pressure change changed spool up by only 300 rpm but made a huge power gain.
Another great feature of the Precision 67HPQ unit is-
The new ceramic dual ball bearing center section that has cooling fins cast into it and does not have any cooling lines.
Well to rap this up I will say that we were very impressed with the 67mm unit from Precision turbo and would recommend the unit to anyone who is looking for a performance edge on the competition. The 67HPQ has a few different options for the bearing structur. We tested the Ball bearing unit but it does come journal bearing also for those that have cost in mind.

Here are the hub measurements I took from each wheel.
PTE 67mm 16.5mm
BW 67mm 20.3mm
BEP 72mm 22.9mm

Here is some pics of the compressor so you can see what to measure.

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RCautoworks,
7434 w 90th
Bridgeview, Illinois
60455
( 708 ) 599 5884

Your one stop shop

Specializing in high horse power cars,
Dyno tuning, street tuning, in house fabrication, routine maintenance
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Old 02-11-2010, 08:44 AM   #20 (permalink)
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I was looking at this on HT this turbo is beyond badass making me look in other directions 99lb/min is insane for a 76mm
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