Chinacharger 2560 @ 11psi on a 1999
#1
!!! NOT CONFIRMED !!!
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Join Date: Nov 2007
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Chinacharger 2560 @ 11psi on a 1999
Installed my GT2560 Churbo, not to happy with the numbers: 217whp 200tq @ 11.8 psi..................also a strange dip in the numbers between 3,800-4,300 rpms Dyno guy said its because my wastgate accuator set to high ( 9 psi ) I should lower it to 6 psi and use the MBC to control the difference ? Does this sound correct ? Set-up as follows: Downpipe 2-1/2, no cat, Borla Sport muffler RB midpipe, RX-7 460cc injectors EMB for control, 73% duty cycle @ wot
#8
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Is this a ball bearing turbo with a 60mm 60 trim compressor wheel? Just wonderin, cause I made 209whp/ 206wtq at 11.9psi with a MS-1 parallel running my current turbo. This setup sounds pretty similar to mine, but now I'm running MS2 standalone instead of MS1 parallel. My turbo is a journal bearing unit with a 56mm 60 trim comp wheel. I also had my stock midpipe too. I guess your numbers aren't bad depending on actual turbo size.
#9
!!! NOT CONFIRMED !!!
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Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Journal Bearing, 2.5 exhaust........still I was looking for at least 225whp based on the fact my old Saab turbo (.48/.49) made 217whp on 11psi. Churbo specs. Compressor a/r .60 (42.6-60 trim 51 ) Turbine a/r .64 ( 46.2-53 trim 79 )
Last edited by elderc; 12-14-2010 at 07:06 PM.
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