GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Aristo swap won't boost past 10psi in ttc

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Old 01-17-17, 01:32 PM
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YoYi
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Default Aristo swap won't boost past 10psi in ttc

Hey,

In 1st gear it will boost all the way up with no cuts, but only to 10 psi, in 2nd, 3rd 4th gear it will then hit fuel or boost cut (don't know which one, it feels like the engine shuts off and on immediately after hitting 10psi) the higher the gear the sooner it will cut.

It had a leak in the intercooler that it was fixed but it keeps doing the same.

Its a stock aristo 2jzgte vvti with both turbos in true twin not secuential.

Any help could be appreciated.
Old 01-17-17, 04:44 PM
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super51fan
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Thats fuel cut, get a HKS FCD then you will be fine
Old 01-17-17, 05:24 PM
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Ac3strik3r
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If I remember correctly when I had that swap. you got boost cut and fuel cut at 4000 rpm, also I believe the max speed is 115mph if you have stock aristo ecu.
Old 01-18-17, 05:51 AM
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YoYi
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But it's only 10 psi. I've read that stock aristo fuel cut is around 14 psi.
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