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-   -   Rebuildable Cores (https://rotarycarclub.com/showthread.php?t=115)

HDP 02-24-2008 09:59 AM

Rebuildable Cores
 
Just wondering if 99 spec turbos can be used as stage III core.

Bryan@BNR 02-29-2008 12:21 PM

yes they are good for cores for a stage 3 build up. I will not use the abradable comrpessor housings for the stage 3's. The nylon insert doesn't have enough meat to fit the larger compressor wheel, plus the nylon insert unreliable anyways. Take it easy.

Bryan@BNR

80 CID 02-29-2008 10:47 PM

Is there any advantage to using a 99-spec for a stage 3 core?

Bryan@BNR 02-29-2008 10:56 PM

The only things is the turbine housings have added nickel to help with the cracking isssue.

80 CID 02-29-2008 11:01 PM

I'll keep that in mind. Thanks for the quick answer.

TRISPEEDFD3S 03-01-2008 03:16 AM

Quote:

Originally Posted by Bryan@BNR (Post 2301)
The only things is the turbine housings have added nickel to help with the cracking isssue.

Wow...I've never known that...can those be purchased from Mazda?

Herblenny 03-01-2008 07:54 AM

WOW! I never knew that either.

RX7 RAGE 03-01-2008 08:27 PM

that's good to know

rotarymandan 03-07-2008 07:18 PM

That is good to know. But is the housing being nickel really worth the extra money compared to a good set of 93 turbos? Either way, I definately see a set of BNRs going on my car sometime in the future... :)

Bryan@BNR 03-08-2008 02:15 PM

Quote:

Originally Posted by rotarymandan (Post 5331)
That is good to know. But is the housing being nickel really worth the extra money compared to a good set of 93 turbos? Either way, I definately see a set of BNRs going on my car sometime in the future... :)


No its not worth the money. When I build the 3's, I radius all the sharp corners that are proned to cracking. If the 99's are leaking or have problems, then they would be a great core to use for the conversion.

Bryan@BNR

HDP 11-22-2010 07:52 PM

What is the turnaround time on a set of stage III?

porschepilot79 11-27-2010 02:08 AM

Great info! One thing im wondering is if its a good idea to cyro the turbine housing to make it stronger to stop cracking? Also, If the housing is cracked should that not be used for the upgrade? Thanks!


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