FYI everyone: Precision Turbo and Engine has released the highly-anticipated 6466 CEA ball-bearing turbocharger which features the latest and most powerful technology available. A revolutionary unit which uses the most cutting-edge technology available and is rated to support 900 HP, the 6466 CEA (part number PTB505-6466 B) showcases an all-new 64mm Competition Engineered Aerodynamics (CEA) CNC-machined, 2618-forged aluminum compressor wheel and high-flow 66mm CEA turbine wheel. Precision's 6466 CEA turbocharger will be offered with an air-cooled, dual ceramic ball-bearing center housing rotating assembly (CHRA) and utilizes PTE's "Ported S" cover compressor. As noted in the table below, a multitude of turbine housing options are available to best fit a wide variety of applications and provide the ability to customize and fine-tune the turbo's performance. 3 bolt Buick turbine housings are avaialbe. Mike
Ball bearing only. I wonder why no journal bearing option. Should find plenty of info on it in a weeks time using Google.
What's wierd is the "old" Billet 6466 was rated for 800hp. Assuming the new billet 6466 has the same 64mm billet CEA wheel it had a year ago.... then a newer design CEA 66mm exhaust wheel..... they picked up 100HP with an exhaust wheel change.... and the same size exhaust wheel? I'm going to guess they didn't pick up 100hp with a wheel change. Maybe they realized the old 800hp rating was 50-60 hp "low" after they tested some? .... and the wheel change got another 40-50hp? Just trying to reason where the 100HP came from.
Cool, too bad I just got a 62/66 for my Talon but I'd want a Journal Bearing. I'd imagine the power numbers are changing because PTE tends to be very conservative with them. Usually some EVO shop lays down 800awhp with one that's claimed to make 800 at the crank and PTE probably alters the numbers since it's not theoretical power anymore. It's enough power to melt the butter 109 all over the highway anyways so be careful with what you wish for.
Looks like this turbo has already made over 900whp on a built supra, over 750whp on a stock long block supra and outperforms the Billet 6766 in this comparison. http://www.supraforums.com/forum/sho...precision-6466 Datar
This is a completely new 64MM compressor wheel that has just been released. It moves about as much air as the current 67MM CEA wheel like the 6766 uses according to the HP rating and results. Since it is lighter is spools faster too. I would expect some other wheels to be revamped into this new design in the next year or so Mike
one reason CO$T..... second if they mainly drag race..... i dont think it matters much since you load the turbo anyway at the line. If you have a matching torque converter it lessons the necessity of the BB
Journal is all that is needed with these small turbos if the combo is correct. They spool plenty fast with a journal. If you have a POS converter and plan on running under 25psi with less than a set of really good flowing aftermarket heads and your engine isnt capable of making power to 6000 rpm a turbo like this has no reason to even be in your combo. If you were to run a 9.5" PTC on your combo with a 6265/66 journal it would likely spool roughly 3x as fast and make as much power as the 70 GTQ up till you hit about 750hp.
I actually have a BB 6265 in the garage waiting to go in. I have to order a new exhaust housing first as I got the larger one which probably won't do me much good. What is the best way to tell if the the converter is a POS? BTW I plan to run about 28lbs. with it and I'm pretty sure I'm making power through 6k RPM's.
It would depend on the displacement and efficiency of the engine. The more efficient it is the sooner you run out of compressor. I was at 696whp@28psi on a 234ci. Peak was 5550 rpm. Turning the boost up more i lost power. The combo would be best shifted around 5900 on the engine i used it on. There was probably room for a degree or two timing and thats it. I had a .63 a/r precision which is closer to .75 in actuality. You know if the converter is crap based on the flash stall and the coupling ability. It needs to flash it into the power band which in my case was around 5400 and couple to within about 5% at the traps. If it can't do that there's room for improvement
About 600 good reasons. I have the same version of the 6265 that Bison refers to and it spools quickly enough when coupled with a PTC NL converter. I do have to give the 6466 credit; with the polished and ported compressor cover, it does look awesome. When I saw a picture of Patrick holding one of these at a show about a year ago, I thought "Man I gotta have one of those" and I probably will. Greed for speed is never satisfied.
