hp raise
hp raise
Rotary Enthusiast
Joined: Jan 2004
Posts: 782
Likes: 3
From: Sonoma, CA
What year FC? If its an S4 then you will need to port the wastegate as well otherwise you will be getting more then 2psi....
Its harder for people to make acurate estimates without having the year car..
What exactly would you be doing to the fuel rail???
Its harder for people to make acurate estimates without having the year car..
What exactly would you be doing to the fuel rail???
Seduced by the DARK SIDE
Joined: Apr 2001
Posts: 7,323
Likes: 2
From: Orange Park FL (near Jax)
The stock rail will handle whatever you can use.
Porting the waste gate is essential (personal experience) otherwise the open exhaust will let the turbo boost creep beyond what the stock fuel pump & injectors can match.
Porting the waste gate is essential (personal experience) otherwise the open exhaust will let the turbo boost creep beyond what the stock fuel pump & injectors can match.
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
180 at the wheels is a good estimate. Would help more if we knew what "exhaust" and "injectors" meant. If you are upgrading the injectors, you will need to add an S-AFC to that list. But for only 2 PSI increase, just upgrading the fuel pump will be fine.
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