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Old 03-20-2021, 12:40 AM   #1
LakixPompa
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Member#: 521740
Join Date: Jan 2021
Default 04 WRX Turbo and Romraider help

Hello everyone, I have a bought a 04 wrx hey had a rod knock. I swapped the engine for a 50k miles jdm ej205. The older engine had came with a bigger turbo, and dark blue injectors. I pulled up romraider to see how things are looking and I realized that it was apparently tuned at 35psi (correct me if I’m wrong please) . I have few pictures of the turbo, would anyone mind telling me what size turbo it is and etc, as well as the amount of psi I should do, or in general some romraider tuning guide. The car has a cat less down pipe, straight piped, dark blue injectors, cold air intake and a mishimoto radiator .

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Old 03-20-2021, 10:51 AM   #2
kopele
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Member#: 363007
Join Date: Jul 2013
Chapter/Region: MWSOC
Location: MO
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No idea what the turbo is, kinda looks like a 20g, but that's just a guess. It's tuned for 14psig as you can see in the Target Boost table. The 35psia you see in the Boost Limit table is when your CEL will be set and it's absolute psi, which is around 20psig. There are table descriptions under the 'view' menu which can be helpful. One tuning guide is here: https://forums.nasioc.com/forums/sho....php?t=1626520 and plenty other info on romraider.com forums. Also that air intake is begging to suck up some water.
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Old 03-20-2021, 11:13 AM   #3
LakixPompa
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Quote:
Originally Posted by kopele View Post
No idea what the turbo is, kinda looks like a 20g, but that's just a guess. It's tuned for 14psig as you can see in the Target Boost table. The 35psia you see in the Boost Limit table is when your CEL will be set and it's absolute psi, which is around 20psig. There are table descriptions under the 'view' menu which can be helpful. One tuning guide is here: https://forums.nasioc.com/forums/sho....php?t=1626520 and plenty other info on romraider.com forums. Also that air intake is begging to suck up some water.

Thank you so much for letting me know . Really appreciate it
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