Digi7ech

iTrader: (1)

I am about to do a Jspec swap into my NA and I want to make sure that I won't lean out and pop the engine since I am doing this on a thin daily driver time line.

I will have the CS single catback and probably racing beat or Corksport downpipe/silencer.

I am probably going with a replacement pipe instead of cat since I don't have to pass emmissions until 2005.

I will have a cone filter with my Cold Air box on it.

Will I be maxing out the injectors or chancing it?

What boost levels do you think I should see?(It's a S4 Jspec)

I'm guessing I'll need a FCD but that will trick the ECU into running at Fuel levels of stock boost while it's running higher.

Also what is the Fuel cut boost amount on a S4??and stock voost levels of S4's?

You think I will need a SAFC or something like this?
I'm new to the boosted side so any tips like Boost controller or something like this would be very helpful.

Digi7ech

iTrader: (1)

Bump.
bump bump

J-Rat

iTrader: (2)

Stock S4 boost about 5.4 PSI
Stock fuel cut..About 7.something

PORT YOUR WASTEGATE! It will save you MUCH hassles in the future.

Stock fuel is usually good till 10PSI then its time for new injectors. The SAFC isnt really good at turning up the 550s, its better at turning down larger injectors.

Digi7ech

iTrader: (1)

I plan to try and do the big stuff before the engine is even in the car. I am going to try and replace all the old hoses with new silicon ones and then anything else. I'll read up on the porting wastegate thing.

Anyone got an idea what boost I'll see with a high flow exhaust like I'll have?