Forced Induction Custom FI Setup Questions

another 4.0 jeep turbo project

Old 12-16-2012, 06:21 PM
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Default another 4.0 jeep turbo project

i recently turboed A 4.0 cherokee i used a ebay chinese special it has a .63 ar turbine and a .50 compress. my question is how much faster will a .48ar turbine spool with this app. im building this rig for sand drags and mud racing i need it to be pretty quick to spool up. it seems a little laggy now but i dont wanna choke it out before 5k rpm. i havent gotten to change injector sizes or any thing yet,its still a working progress. thanks in advance
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Old 12-21-2012, 02:48 PM
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i say the .48ar turbine housing should spool up around 1500-2000 rpm. that is a very small housing. choking at top end will be an issue but its a truck so your motor will most likely never be spending large amounts of time in upper rpm range.
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Old 12-21-2012, 06:41 PM
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Thanks for replying. I have another dumb? If i change the exhaust housing do i need to change the tur bine wheel or do all the t3 style wheels and housings interchange. I know there is different trims on the turbine but im not sure if they have to match
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Old 12-24-2012, 11:34 AM
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swapping turbo parts is not a good idea. machine work and balancing is required. it would be cheaper to just buy another turbo with the specs you want.
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Old 10-29-2013, 09:52 PM
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you dont need to balance if just replace the turbine
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