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WTB: upgrade HPFP

daconchslop

Autocross Champion
Location
SC
Car(s)
ACS SE/Tech
Yep, I’m currently running CTS turbo MPI, but I’m thinking about using the autotech pump in addition to the MPI.
I think I recall reading that the stock HPFP has better tuning capability when paired with MPI vs AT HPFP.
Edit: “MPI seems to cause a touch of instability in the high pressure side, so having a stock HPFP makes it easier and more consistent to tune” Hoon 2019.
 
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JerseyDrew77

Autocross Champion
Location
Virginia & NC
Car(s)
2016 TR GTI S 6MT
I think I recall reading that the stock HPFP has better tuning capability when paired with MPI vs AT HPFP.
Edit: “MPI seems to cause a touch of instability in the high pressure side, so having a stock HPFP makes it easier and more consistent to tune” Hoon 2019.

Yes, you are correct.
 
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