Kracka's MAP EF2X turbo dyno results - 416WHP on pump gas!
Nov 15, 2011, 01:03 PM
#106
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ef2 > new fp green. Spool rate is still a little better than bb green (which is sad for FP), also i heard that there are only 40, yep 40 FP greens BB made for sale in the US... I believe that is just for now due to FP recovering from the hurricane and what not in Japan. 2500 is way too much for what it is, then the housing and coating very close to 3k, not worth it. I love what the ef2 puts down and cant wait to rock mine on 
Nov 15, 2011, 01:57 PM
#112
I've yet to see a BB turbo that spools faster than it's JB counterpart, all else being equal. It helps in transient boost conditions (i.e. when the turbo does not have exhaust pressure) like between shifts. The JB's tend to loose alot of rpm's while the BB retains RPM's far better.
Theoretically BB's are more reliable and longer lasting, but spool is not affected. Spool and boost curve is determined by the geometry of the wheels and housings.
Theoretically BB's are more reliable and longer lasting, but spool is not affected. Spool and boost curve is determined by the geometry of the wheels and housings.
Nov 15, 2011, 02:30 PM
#114
I've yet to see a BB turbo that spools faster than it's JB counterpart, all else being equal. It helps in transient boost conditions (i.e. when the turbo does not have exhaust pressure) like between shifts. The JB's tend to loose alot of rpm's while the BB retains RPM's far better.
Theoretically BB's are more reliable and longer lasting, but spool is not affected. Spool and boost curve is determined by the geometry of the wheels and housings.
Theoretically BB's are more reliable and longer lasting, but spool is not affected. Spool and boost curve is determined by the geometry of the wheels and housings.
