N54Tech.com - International Turbo Racing Discussion
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matrix1867 matrix1867 is offline
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Car: Golf MK7 2016 1.8t TSI
Default JB4 and IS38 with 1.8t - 08-14-2020, 02:26 PM

Hello,

I just received an IS38 and will be installing it tomorrow to replace the IS12 in my Golf MK7. I won't be able to get it to a flash tuner right away and have a JB4 currently equipped. Being a relative beginner when it comes to modding my golf, I'm looking for advice on a good starting point using the JB4 to tune the engine in order to utilize the upgraded turbo. Any suggestions are welcome, my apologies in advance if there is a thread that covers this topic already. I had not seen any forum that had the information I'm looking for to help me after the turbo swap.
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ZuMBLe ZuMBLe is offline
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Car: VW Alltrack
Default 08-19-2020, 08:34 AM

You will likely need to keep the boost under 20 psi. Start with Map 1 and do a log and work from there. You'll need to go Map 6 to get the most out of it.
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