996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Tial Alpha Series A28 Turbos!!

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Old 01-05-2009 | 04:55 PM
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Tial Alpha Series A28 Turbos!!

Who is using these right now? i just wanted a little extra information and some reviews if anyone has the info.

can anyone confirm that the A28 is an Hybrid with K24 turbos and Garrett GT28 compressor? that's what someone told me, but im still lost on these turbos.
 

Last edited by SHP_Arnold; 01-05-2009 at 05:11 PM.
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Old 01-06-2009 | 10:18 PM
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These are used in the EVO and Speed Gallery kits. K16 turbine housing modified to use with a Garrett GT28RS ball bearing turbo. Extremely reliable (as are all of the 996TT turbos). Near instant spoolup. Max power claims vary from 600-700 crank hp. Ask Dr_Jitsu...he had these for a while and his car was very fast with them, but he wanted even more power and jumped to GT30 turbos.
 
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Old 01-06-2009 | 10:35 PM
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Asolutely no lag whatsoever, like driving a V 8, full power at 3.8k rpm, excellent road course turbo but they die out up top for highway run ons w/ the big dogs in Mexico.

Perfect turbo, like I said for a road course or daily driver.
 
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Old 01-07-2009 | 05:31 PM
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Thank you for the information guys, that really helped me out.

has anyone else owned this kit and have a personal opinion from first hand experience.
 
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Old 01-07-2009 | 05:49 PM
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No experince with 28's other than 24/18's find them very tasty....
 
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Old 01-07-2009 | 06:38 PM
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I have these in an EVOMS GT610. Iam very satisfied. They spool almost as fast as K-16s and much faster than K-24s. They deliver much more power than K-16s but do seem to run out at higher RPM. Excellent for street and road course.
 
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